Figures
Abstract
Introduction
Systematic reviews have become increasingly popular among researchers due to their importance in decision-making in health and sports. Only 3% of the reviews are considered decent and clinically useful, and 17% are decent but not useful. Therefore, we aimed to synthesize and critically appraise the evidence of systematic reviews assessing the effect of velocity-based resistance training (VB-RT) on health or athletic performance outcomes in adults and older adults.
Methods
We searched MEDLINE (via Ovid), EMBASE (via Elsevier), Cochrane Database of Systematic Reviews (CDSR) (via Ovid), SPORTDiscus (via EBSCO), and Epistemonikos from inception to January 09, 2024, and updated May 26, 2025, to identify reviews of randomized controlled trials and non-randomized controlled trials investigating the effects of VB-RT on health or athletic performance outcomes in adults and older adults. Two reviewers independently selected the studies, extracted data, and assessed the overall confidence in the results of the included reviews with AMSTAR-2 as ‘High’, ‘Moderate’, ‘Low’, and ‘Critically low’. Descriptive analysis was used to summarize the characteristics of the included systematic reviews. We investigated the degree of overlapping in the reviews.
Results
We included 17 reviews published between 2019 and 2025 in 10 countries, with 8222 participants. Most of the reviews (65%) investigated non-athlete adults. Only 4 (24%) used an formal system to evaluate the certainty of evidence. The degree of overlap in primary studies was moderate (CCA = 7.73%). The overall confidence in the results of 16 reviews (94%) was rated as ‘Critically low’, and only one (6%) was rated as ‘Low’.
Conclusion
Systematic reviews of VB-RT studies often have serious limitations. Authors can improve confidence in the results of future reviews by involving methodologists and statisticians and using a rigorous and transparent system to evaluate the certainty of the evidence. Reviewers should also adhere to the latest standards of conduct and reporting, fostering a more cohesive, precise, and reliable understanding of the VB-RT role in performance and health outcomes.
Citation: Loaiza-Betancur AF, González-González C, Díaz-Franco A, Castaño-Soto J, Alzate-Toro A, Areiza-Usuga E, et al. (2026) A critical appraisal of systematic reviews assessing the effect of chronic velocity-based resistance training on health and athletic performance outcomes: A systematic review. PLoS One 21(2): e0342992. https://doi.org/10.1371/journal.pone.0342992
Editor: Fernando Martin-Rivera, University of Valencia, SPAIN
Received: June 7, 2025; Accepted: January 30, 2026; Published: February 18, 2026
Copyright: © 2026 Loaiza-Betancur et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Data Availability: All relevant data are within the paper and its Supporting Information files.
Funding: The author(s) received no specific funding for this work.
Competing interests: The authors declare that they have no competing interests.
Abbreviations: AMSTAR-2, A Measurement Tool to Assess Systematic Reviews; Non-RCTs, non-randomized controlled trials; PB-RT, Percentage-based resistance training; PRISMA, The Preferred Reporting Items for Systematic Reviews and Meta-Analyses; PRISMA, The Preferred Reporting Items for Systematic Reviews and Meta-Analyses; RCT, Randomized controlled trials; SDMO, Studies, Data, Methods, Outcome (s), Reviews: Systematic review; WHO, the World Health Organization; VB-RT, Velocity-based resistance training.
1. Introduction
A systematic review (thereafter reviews) must follow explicit and systematic methods to reduce the risk of bias and produce more reliable findings to inform an evidence-based decision-making context. High-quality reviews are essential in the decision-making context; however, an important prerequisite is that reviews have been based on a sound methodology to avoid bias [1,2]. Reviewing and synthesizing evidence is a powerful tool for patient care [1,2]. Reviews, which use rigorous and transparent approaches to synthesize large amounts of evidence, are commonly used to inform healthcare decisions and policies. Reviews of randomized controlled trials are considered the gold standard for evidence production [1,2]. In 2011, the Institute of Medicine (now the National Academy of Medicine) stated that clinical practice guidelines should be informed by a systematic review of the evidence [2]. This creates a need for conducting more and higher-quality reviews.
Reviews have become increasingly popular among researchers due to their importance in decision-making in health and sports. Between 2004 and 2014, the number of annual review publications increased by 8,000 per year, resulting in an average of 22 reviews published per day [3]. This represents a threefold increase from the number observed in 2004 [3]. An observational study revealed that in 2019, 20,073 reviews were published, averaging over 2,400 per month and 80 per day [4]. The study compared the years 2000 and 2019 and found a 20-fold increase in review publications over the last two decades [4].
The recent surge in the production of reviews has raised some concerns. Only 3% of the reviews are considered decent and clinically useful, while 27% are redundant and unnecessary, 20% are flawed beyond repair, and 17% are decent but not useful [5]. For instance, the World Health Organization (WHO) used twenty-one reviews in their last evidence-based guidelines on physical activity and sedentary behavior [6]. Of these, ten (48%) were rated as having low methodological quality, five (23%) were rated as having critically low quality, and only six (29%) had moderate methodological quality [6]. Seventy-one percent of the reviews used by the WHO to develop evidence-based guidelines have an overall confidence rating of critically low to low [6].
Velocity-based resistance training (VB-RT), an approach that uses velocity to provide objective feedback, estimate strength, develop load-velocity profiles, and enable accurate and objective prescription of RT intensity, volume, and recovery, has gained popularity among resistance training researchers, lecturers, and students in sport science during recent years [7,8]. However, evidence-based guidelines for this exercise modality are lacking, making it difficult to develop recommendations for health or athletic performance. VB-RT has been shown to provide significant health benefits [9,10] and improve performance [11,12]. Nevertheless, the methodological quality of the reviews reporting these findings is unclear. In addition, in our preliminary searches, no formal quality appraisal analysis has been done on VB-RT reviews. In this regard, it is imperative to address this gap in current knowledge. Therefore, this review aimed to synthesize and critically appraise the evidence of systematic reviews assessing the effect of VB-RT on health and athletic performance outcomes in adults and older adults.
2. Methods
This systematic review followed the guidance of the Cochrane Handbook [13,14]. Due to the specific reporting checklist being currently under development [15], when it was possible, we reported this review following the Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) checklist [16]. The PRISMA checklist is reported in S1 Table. We have registered the protocol of this review in the Open Science Framework (DOI 10.17605/OSF.IO/PAJCN).
2.1. Eligibility criteria
We followed the SDMO framework (S- Studies; D – Data; M – Methods; O- outcome (s)) to guide study selection [17] as follows: 1) we included VB-RT [8] reviews of randomized (RCTs) and non-randomized controlled trials (non-RCTs) [14]; 2) in athletes, non-athletes (as defined by systematic reviewers) adults (≥18 years old) or older adults (60 + years old, as defined by the WHO and United Nations) [18,19]; 3) reported a control group consisting of other interventions with exercise (e.g., traditional resistance training, aerobic training, combined training) or no intervention; 4) that investigated the effects on health [20] or athletic performance outcomes [21] (as defined by the authors of the included reviews). Besides, we applied no language or publication date restrictions. We excluded reviews that included purely observational studies.
2.2. Information sources
We conducted a systematic literature search in MEDLINE (via Ovid), EMBASE (via Elsevier), Cochrane Database of Systematic Reviews (CDSR) (via Ovid), Epistemonikos, and SPORTDiscus (via EBSCO) from inception to January 09, 2024, and updated May 26, 2025. Furthermore, we have inspected references to all included reviews for further relevant studies.
One review author searched for ongoing reviews in both the PROSPERO database and the Open Science Framework by using free search terms taken from the main search strategies. The same author searched Google Scholar to capture additional grey literature resources (e.g., Institutional reports, dissertations, theses, and conference abstracts).
2.4. Selection process
Pairs of review authors selected the studies at title, abstract, and full-text independently. Disagreements were discussed among pairs of researchers, with any outstanding disagreements resolved by an independent third author.
2.5. Data management
We exported the literature search results to the Rayyan app [22]. We piloted the eligibility criteria in 10% of the anticipated total sample (title, abstract, and full-text stages).
2.6. Data collection process
Pairs of review authors extracted data independently and in duplicate using a standardized electronic form created in Microsoft Forms for this project. We piloted 10% of the total sample of included studies in full-text.
2.7. Data items
We extracted the following information: publication year, country, type of review (systematic review with or without meta-analysis), review methodology (aim, inclusion criteria, exclusion criteria, number of studies included/excluded, database search, bias assessment tool, certainty of the evidence approach), characteristics of included studies (design, number of included participants, type of participants, training status, age, sex, and countries), frequency (sessions/week), intensity, volume (set, repetition), length (weeks), progression, supervision, RT implementation equipment (machines with pneumatic resistance, free weights, elastic bands), encoder type, the exercise tested, and setting.
2.8. Quality appraisal
A pair of researchers independently assessed the overall confidence in the results of all included reviews using the A Measurement Tool to Assess Systematic Reviews (AMSTAR 2) (21–23) [23]. Each AMSTAR question was rated as yes (clearly done), no (clearly not done), partial yes (partial adherence to the standard), or no meta-analysis conducted (questions 11, 12, and 15). Disagreements were discussed among pairs of researchers, with any outstanding disagreements resolved by a third author.
2.9. Managing overlapping systematic reviews
We investigated the degree of overlap and the number of unique studies in each included review [24]. We used Graphical Representation of Overlap for Overviews (GROOVE) [25]. GROOVE provided the number of unique and overlapped primary studies, the overall corrected covered area (CCA), CCA adjusted structural missingness (structural zeros), and the number of nodes with low, moderate, high, and very high overlap [25]. A CCA score of 0–5 indicates a slight overlap, 6–10 moderate, 11–15 high, and >15 very high [25].
2.10. Synthesis methods
The credibility of each review was reflected in an overall confidence rating, which was determined by an evaluation of non-critical and critical domains (seven critical items: protocol registered before the commencement of the review (item 2), adequacy of the literature search (item 4), justification for excluding individual studies (item 7), risk of bias from individual studies being included in the review (item 9), appropriateness of meta-analytical methods (item 11), consideration of the risk of bias when interpreting the results of the review (item 13), assessment of the presence and likely impact of publication bias (item 15)) [23]. A lack of addressing one or multiple critical domains resulted in a, respectively, low or critically low confidence rating. If no critical flaws were present, the presence of non-critical weaknesses determined whether the review received a high (no weaknesses) or moderate (one or more weaknesses) confidence rating. We used the amstar2Vis [26] package in RStudio to report our results.
We narratively summarized the findings of the included reviews that conducted meta-analyses; however, reviews whose meta-analyses were based solely on within-group pre-post changes without a comparator were not summarized.
3. Results
3.1. Study selection
The initial search identified 1,563 potentially relevant studies. After 594 duplicates were removed, 969 records remained to be screened. We excluded 919 records on title and abstract screening. We assessed 50 full-text articles and excluded 32 full-text reviews (see S3 Table). Eighteen (17 complete reviews [27–43] and one published protocol [44]) published reviews met the inclusion criteria for this review (Fig 1). The characteristics of the included protocol are reported in S4 Table.
3.2. Characteristics of the SDMO approach
3.2.1. Type of studies.
Tables 1 and 2 report the characteristics of the included reviews. Independent research groups conducted all reviews. Ten (59%) out of seventeen reviews did not report the platform used in the screening process [28,30,33,35–37,40–43]. Three reviews have used EndNote [34,38,39], and the remaining (6%, respectively) utilized Rayyan and EndNote [29], Rayyan [32], Mendeley [31], and Excel [27]. 94% [27–35,37–43] (16 reviews) did not search in trial registry repositories, Orange 2022 [36] (6%) searched in ClinicalTrials.gov, ISRCTN, and SportRxiv. The most used risk of bias tool (RoB) was PEDro (6, 35%) [30,31,37,40–42], followed by Cochrane RoB 1 (3, 18%) [28,32,39] and RoB 2 (3, 18%) [27,36,43]. One (6%) review did not report the tool used [33]. Sixteen (94%) out of seventeen reviews described that followed PRISMA to report their systematic reviews [27–33,35–43]. However, fifteen (88%) did not report the PRISMA checklist [27–33,35–42]. Three (18%) out of seventeen reviews did not conduct meta-analyses [27,33,38]. Four (24%) [34,36,37,43] reviews evaluated the certainty of evidence using a formal system (i.e., GRADE), and the remaining 76% (13 reviews) did not rate the certainty of the evidence [27–33,35,38–42]. This body of evidence synthesis was published between 2019 [37] and 2025 [43], and the year with the most reviews published in this field was 2022 (7 reviews, 41%) [27,30,32,36,39,41]. Eleven (65%) out of seventeen reviews included RCTs and non-RCTs [29–35,38,39,41,42]. Six (35%) reviews included only RCTs [27,28,36,37,40,43]. Those RCTs and non-RCTs were published from 1995 to 2024, and China [34,39–43] was the country where most reviews were conducted (6; 35%), followed by Brazil [29,37] and Spain [31,35] with two (12%) reviews, respectively. See Fig 2.
3.2.2. Type of data.
In total, 8222 participants were included in these reviews. Eleven out of seventeen (65%) reviews investigated non-athlete adults [28–30,32,33,35–37,40,41,43]; the remaining reviews (6, 35%) included adult athletes [27,31,34,38,39,42]. Reviews included studies with participants between 14 [28,32] and 66 [37] years old. In addition, only one (6%) review investigated older adults [37]. Twelve (71%) reviews included studies with females and males [27,28,30,32–39,43], and five (29%) only investigated studies with males [29,31,40–42]. Most of the reviews (9, 56%) included studies with healthy trained participants (i.e., > 1-year experience in resistance training) [28–30,32,33,35,36,40,41], six (35%) investigated primary evidence with athletes [27,31,34,38,39,42], and the remaining (2, 12%) included post-stroke participants [37] and adults who had a diagnosis of Knee osteoarthritis [43].
3.2.3. Comparisons.
The most common comparison was VB-RT against percentage-based resistance training (PB-RT) (6, 35%) [27,30,33,34,36,39] followed by VB-RT with different velocity loss thresholds [31,32,41], with three (18%) reviews (e.g., VL thresholds: 0–10% versus VL thresholds: 20%) and two (12%) reviews compared isokinetic muscle strengthening against other exercise interventions, or control groups [37,43]. Comparing mean propulsive velocity between men and women [35], with one review (6%). Wlodarczyk 2021 [38] did not report the comparison. Zhang 2022 [41], Zhang 2023 [42], and Chen 2023 [28] compared the pre- and post-VB-RT without approach description. Gantois 2021 [29] compared pre- and post-VB-RT of different velocity loss thresholds.
3.3. Results of Syntheses
3.3.1. Overlapping.
The reviews included a total of 93 primary studies published from 1995 to 2023 (S1 Fig.). After examining the overlap between studies reported in multiple reviews, only 64 unique studies were found. In addition, eight studies were found in two reviews, and 21 other studies were included in three or more reviews. The degree of overlap in primary studies was moderate (CCA = 7.73%). Moderate overlapping was maintained after we adjusted by considering structural missingness (CCA = 8.37%). See Fig 3 and S2 Fig.
3.3.2. Overall confidence in the results of the systematic reviews.
The results of AMSTAR-2 are shown in Figs 4 and 5, and S3 Fig. The overall confidence in the results of sixteen [27–35,37–43] reviews (94%) was rated as ‘Critically low’, and one (6%) was rated as ‘low’ [36] because most of them did not completely meet the critical domains two (9, 53%) [30,33,34,37–42], four (7, 41%) [27,31,33,35,38,39,42], seven (16, 94%) [27–36,38–43], thirteen (12, 71%) [27–29,31,33,35,38–43], and fifteen (6, 35%) [29,31,32,35,37,42]. That means the reviews have more than one critical flaw and may not be relied on to provide an accurate and comprehensive summary of the available studies addressing the question of interest. Ten reviews (59%) [28–30,32,34,36,37,40,41,43] partially completed a systematic and extensive literature search. In addition, the reviews have not reported the funding source of the primary studies included (100%) [27–43], and 16 [27–35,37–42] out of seventeen reviews did not describe an explanation of the included studies’ design (94%). 10 [28–32,35,40–43] reviews (59%) did not report information about the impact of the RoB on the synthesis results. On the other hand, the domains most covered were any potential source of conflict of interest (17, 100%) [27–43]. Fourteen reviews (82%) reported that more than one author performed study selection [28–32,34–38,40–43] or data extraction [28–32,34–41,43]. 71% (12) of the reviews [27–32,36,37,39–41,43] used a satisfactory method for rating the RoB in the included studies and utilized an appropriate statistical method to pool the results. Besides, all reviews [27–43] have more than one non-critical weakness, which may also diminish confidence in the results of the reviews.
3.3.3. Effectiveness and safety of VB-RT any approach and PB-RT.
A total of 14 reviews conducted a meta-analysis (MA) [28–32,34–37,39–43]. Three reviews with MA [29,41,42] were excluded because the authors meta-analyzed only within-group pre-post mean differences without a comparator (e.g., means pre-VL thresholds: 0–10% versus means post-VL thresholds: 0–10% or means pre-VB-RT any approach versus means post-VB-RT any approach). Four reviews (n = 707 participants) with MA found no difference between VB-RT and PB-RT on muscle strength, jump, sprint, change of direction, and muscle power [30,34,36,39] in athletes and non-athlete adults. When comparing VB-RT with different velocity loss thresholds, four reviews (n = 1687 participants) found little to no difference in muscle strength, jump, sprint, and muscle power in athletes and non-athlete adults [30,34,36,39]. Nieto-Acevedo 2023 [35] found significant differences between men and women in mean propulsive velocity at 30% and 70% and in mean velocities when the participants underwent the mean propulsive velocity method. One review showed a significant difference between the isokinetic muscle strengthening group compared to other exercise or non-exercise control groups in muscle strength, mobility, and gait speed in post-stroke patients [37]. Similar findings were found in one review (n = 2860 participants) comparing the isokinetic muscle strengthening group to other exercise or non-exercise control groups on knee muscle strength, pain, functional scores, knee mobility, and physical performance in patients with knee osteoarthritis [43]. None of the reviews investigated adverse events. S5 Table reports the certainty of the evidence and the directions of the effects.
3.3.4. Certainty of evidence.
Only four reviews [34,36,37,43] evaluated the certainty of evidence using a formal system. The system used was GRADE. Eleven (69%) outcomes were rated as low, two (12%) were moderate, and three (19%) were rated as very low. The most common downgrading domains were risk of bias (limitation in the study design) (3 out of 4 reviews; 75%), inconsistency (2 out of 4 reviews; 50%), and imprecision (3 out of 4; 75%). See S5 Table.
4. Discussion
4.1. Summary of main results
This systematic review aimed to synthesize and critically appraise the evidence of reviews assessing the effect of VB-RT on health and athletic performance outcomes in adults and older adults. The overall confidence in the results of those reviews was critically low. Several domains need to be improved. Specifically, domain 2 (registration before conducting the review), domain 3 (explanation of the choice of the study design), domain 4 (having a comprehensive search strategy), domain 7 (providing a list of excluded studies), domain 10 (reporting the source of funding), domain 12 (impact of the RoB on the results), and domain 13 (results interpretation with RoB reference). Our findings suggest that these reviews may not be relied on to provide an accurate and comprehensive summary of the available studies addressing the question of interest.
4.2. Limitations of the evidence included in the review
There were several flaws across the 16 reviews. Notable areas include a lack of replicable search strategy, the scarce search of ongoing and unpublished trials, and the poor information about how the screening process was done merits careful consideration. Additionally, all the reviews did not prioritize [45–47] or use a core outcome set [48–50] and did not report the utilization of tools for the narrative reporting of the results [51]; in addition, the lack of a formal system to evaluate the certainty of the evidence is reducing the confidence in the findings of these reviews.
4.3. Limitations of the review process
This review was planned, registered, conducted, and reported according to the highest methodological standards [14,52,53]. Furthermore, comprehensive systematic searches, as well as the independent and duplicate approach for review selection, data extraction, and quality appraisal processes, are methodological strengths. Moreover, the research team comprised exercise science professionals as well as physiotherapists and experts in evidence synthesis on resistance training. Our well-detailed assessment critical appraisal supports further use of this methodological review for evidence-informed decision-making (i.e., evidence-based guidelines in health and sport). Additionally, we did attempt to control for biases through processes such as no language restrictions to our search, complementing our database literature searches with hand searching, contacting authors for clarification, and for additional information where indicated, although responses were not always obtained. We searched systematic review registries (i.e., PROSPERO and Open Science Framework) to identify unpublished reviews.
4.4. Agreements and disagreements with other studies or reviews
Several studies have critically appraised systematic reviews on the effects of exercise training on health outcomes [54–57]. However, none have focused on the overall confidence in the results of the reviews of VB-RT on health and performance outcomes.
Almeida 2019 [56] critically appraised 38 reviews on the benefits and harms of exercise in chronic non-specific low back pain. This review showed that the overall confidence in the results of 28 reviews was rated critically low. Similar to our results, a study found that eighteen out of nineteen included reviews assessed the chronic effect of physical activity on academic achievement in children, and adolescents were evaluated as critically low [54]. Hansford 2022 [55] reported that of twenty-eight reviews that evaluated exercise interventions in health and disease, nineteen of them were appraised between low (11, 39%) and critically low (8, 29%). An overview of reviews [57] conducted by our group showed that just 16% (18 out of 114 reviews) of the reviews investigated the benefits and harms of exercise training on blood pressure reached moderate quality, and the remaining (84%) were rated as low or critically low.
4.5. Implications for practice
Our findings indicate that VB-RT reviews often have important methodological limitations, and practitioners, including physiotherapists, sports doctors, athletes, and individuals engaged in recreational resistance training, should be cautious when interpreting and implementing their results. We also encourage university professors and students in related fields (i.e., physical education, sport science) to approach the teaching and learning of VB-RT from a deeply critical perspective, ensuring that routine and clinical practice are aligned with the quality of the best scientific knowledge currently. Despite hypothetical assumptions in a contrary direction, the findings of the included reviews showed that there were no clear advantages of implementing in practice VB-RT in performance (e.g., strength, jump, power, and change of direction) and health outcomes (e.g., mobility) when compared to PB-RT, however, the certainty of the evidence evaluated with a formal system (GRADE) from three reviews [34,36,37] was rated as low to very low (S5 Table). In other words, the true effect is likely to be substantially different from the estimated effect of those reviews.
4.6. Implications for research
We need future well-designed and well-reported systematic reviews of interventions investigating the effectiveness and safety of VB-RT in athletes and recreationally resistance training users. These reviews should follow the methodological guidance of the gold standard handbooks, such as the Cochrane handbook [14] or the JBI [58] manual for evidence synthesis. These handbooks explicitly define key standards that must be followed in a systematic review of interventions, including making publicly available early in the project the a priori decisions (i.e., protocol registration), conducting a comprehensive literature search, ideally including an information specialist, transparently reporting the reasons why studies were excluded at the full-text screening stage, appropriately interpreting the review findings, considering the RoB in the individual studies, and, where feasible, investigating the risk of publication bias.
Additionally, they should adhere to international reporting guidelines such as PRISMA-P [52,59] and PRISMA [53]. We suggested to the authors interested in this topic to find some strategies (i.e., improve the research network) to reduce the research waste because the moderate overlapping degree found in this study indicated that most of the reviews published were unnecessary. Finally, we encourage journal editors and peer reviewers to also be mindful of our findings because many of the issues we describe can be addressed at the peer review stage (e.g., lack of registered protocol and adherence to completeness of reporting checklist).
5. Conclusion
Systematic reviews of VB-RT studies often have serious limitations. We encourage evidence users of this topic to be mindful of them. Authors can improve confidence in the results of future reviews by planning the review, conducting comprehensive literature searches, including a search for ongoing studies, involving experts in methods and statistics, and using a rigorous and transparent system to evaluate the certainty of the evidence to conclude. To advance the field, reviewers should also adhere to the latest standards of conduct and reporting, fostering a more cohesive, precise, and reliable understanding of the VB-RT role in performance and health outcomes.
Supporting information
S3 Table. Studies excluded at full-text screening.
https://doi.org/10.1371/journal.pone.0342992.s003
(DOCX)
S5 Table. Certainty of the evidence and directions of the effects for comparisons.
https://doi.org/10.1371/journal.pone.0342992.s005
(DOCX)
S1 Fig. Number of primary studies by year of publication.
https://doi.org/10.1371/journal.pone.0342992.s006
(TIF)
S2 Fig. Corrected covered area (Adjusted by structural zeros).
https://doi.org/10.1371/journal.pone.0342992.s007
(TIF)
S3 Fig. Overall confidence in the results of the Reviews.
https://doi.org/10.1371/journal.pone.0342992.s008
(TIF)
Acknowledgments
We would like to acknowledge Enoc Valentin Gonzalez Palacio and Hernan Alonso Osorio Estrada for screening at title/abstracts, and full-text articles for inclusion/exclusion.
References
- 1.
Higgins J, Thomas J, Chandler J, Cumpston M, Li T. Cochrane handbook for systematic reviews of interventions version 6.3 (updated February 2022). 2022.
- 2.
Graham R, Institute of Medicine (U.S.). Clinical practice guidelines we can trust. Washington, DC: National Academies Press. 2011.
- 3. Page MJ, Shamseer L, Altman DG, Tetzlaff J, Sampson M, Tricco AC, et al. Epidemiology and reporting characteristics of systematic reviews of biomedical research: A cross-sectional study. PLoS Med. 2016;13(5):e1002028. pmid:27218655
- 4. Hoffmann F, Allers K, Rombey T, Helbach J, Hoffmann A, Mathes T, et al. Nearly 80 systematic reviews were published each day: Observational study on trends in epidemiology and reporting over the years 2000-2019. J Clin Epidemiol. 2021;138:1–11. pmid:34091022
- 5. Ioannidis JPA. The mass production of redundant, misleading, and conflicted systematic reviews and meta-analyses. Milbank Q. 2016;94(3):485–514. pmid:27620683
- 6.
WHO guidelines on physical activity and sedentary behaviour. Geneva: World Health Organization; 2020.
- 7. Jovanović M, Flanagan EP. Researched applications of velocity based strength training. J Aust Strength Cond. 2014;22:58–69.
- 8. Weakley J, Mann B, Banyard H, McLaren S, Scott T, Garcia-Ramos A. Velocity-based training: From theory to application. Strength Conditioning Journal. 2020;43(2):31–49.
- 9. Sayers SP. High-speed power training: a novel approach to resistance training in older men and women. A brief review and pilot study. J Strength Cond Res. 2007;21(2):518–26. pmid:17530980
- 10. Westcott WL. Resistance training is medicine: Effects of strength training on health. Curr Sports Med Rep. 2012;11(4):209–16. pmid:22777332
- 11. Guppy SN, Kendall KL, Haff GG. Velocity-based training—a critical review. Strength Conditioning Journal. 2023;46(3):295–307.
- 12. Weakley J, Mann B, Banyard H, McLaren S, Scott T, Garcia-Ramos A. Velocity-based training: From theory to application. Strength Conditioning Journal. 2020;43(2):31–49.
- 13. Clarke M, Oxman AD, Paulsen E, Julian PH, Green S. Appendix A. Guide to the contents of a Cochrane Methodology. https://handbook-5-1.cochrane.org/appendix_a/appendix_a_guide_to_the_contents_of_a_cochrane_methodology.htm. Accessed 2023 November 25.
- 14.
Higgins JP, Thomas J, Chandler J, Cumpston M, Li T, Page MJ, et al. Cochrane handbook for systematic reviews of interventions. John Wiley & Sons. 2022.
- 15. Lawson DO, Puljak L, Pieper D, Schandelmaier S, Collins GS, Brignardello-Petersen R, et al. Reporting of methodological studies in health research: A protocol for the development of the MethodologIcal STudy reportIng Checklist (MISTIC). BMJ Open. 2020;10(12):e040478. pmid:33334836
- 16. Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. The PRISMA 2020 statement: An updated guideline for reporting systematic reviews. BMJ. 2021;372:n71. pmid:33782057
- 17. Munn Z, Stern C, Aromataris E, Lockwood C, Jordan Z. What kind of systematic review should I conduct? A proposed typology and guidance for systematic reviewers in the medical and health sciences. BMC Med Res Methodol. 2018;18(1):5. pmid:29316881
- 18.
World population ageing, 2019 highlights. New York: United Nations. 2020.
- 19. Rudnicka E, Napierała P, Podfigurna A, Męczekalski B, Smolarczyk R, Grymowicz M. The World Health Organization (WHO) approach to healthy ageing. Maturitas. 2020;139:6–11. pmid:32747042
- 20.
Lee A, Leung S. Health Outcomes. Encyclopedia of Quality of Life and Well-Being Research. Springer Netherlands. 2014. p. 2730–5. https://doi.org/10.1007/978-94-007-0753-5_1251
- 21.
French DN, Torres Ronda L. NSCA’s essentials of sport science. First ed. Champaign, IL: Human Kinetics, Incorporated. 2022.
- 22. Ouzzani M, Hammady H, Fedorowicz Z, Elmagarmid A. Rayyan-a web and mobile app for systematic reviews. Syst Rev. 2016;5(1):210. pmid:27919275
- 23. Shea BJ, Reeves BC, Wells G, Thuku M, Hamel C, Moran J, et al. AMSTAR 2: A critical appraisal tool for systematic reviews that include randomised or non-randomised studies of healthcare interventions, or both. BMJ. 2017;358:j4008. pmid:28935701
- 24. Bidonde J, Menseses J. The Effect of Interventions for Children Who Have Experienced Violence in Close Relationships: An Overview of Reviews. Oslo, Norway: Knowledge Centre for the Health Services at The Norwegian Institute of Public Health (NIPH); 2017. http://www.ncbi.nlm.nih.gov/books/NBK482105/
- 25. Pérez-Bracchiglione J, Meza N, Bangdiwala SI, Niño de Guzmán E, Urrútia G, Bonfill X, et al. Graphical representation of overlap for overviews: GROOVE tool. Res Synth Methods. 2022;13(3):381–8. pmid:35278030
- 26. Bougioukas KI, Karakasis P, Pamporis K, Bouras E, Haidich A-B. amstar2Vis: An R package for presenting the critical appraisal of systematic reviews based on the items of AMSTAR 2. Res Synth Methods. 2024;15(3):512–22. pmid:38316610
- 27. Baena-Marín M, Rojas-Jaramillo A, González-Santamaría J, Rodríguez-Rosell D, Petro JL, Kreider RB, et al. Velocity-based resistance training on 1-RM, jump and sprint performance: A systematic review of clinical trials. Sports (Basel). 2022;10(1):8. pmid:35050973
- 28. Chen B-Y, Chen W-H, Liu Y, Fiolo NJ, Fuchs PX, Huang C-F, et al. The effects of velocity loss thresholds during resistance training on lower-limb performance enhancement: A systematic review with meta-analysis. International Journal of Sports Science Coaching. 2024;19(4):1863–77.
- 29.
Gantois P, Nakamura FY, Alcazar J, de Sousa Fortes L, Pareja-Blanco F, de Souza Fonseca F. The effects of different intra-set velocity loss thresholds on lower-limb adaptations to resistance training in young adults: A systematic review and meta-analysis. Center for Open Science. 2021. https://doi.org/10.31236/osf.io/v3tr9
- 30. Held S, Speer K, Rappelt L, Wicker P, Donath L. The effectiveness of traditional vs. velocity-based strength training on explosive and maximal strength performance: A network meta-analysis. Front Physiol. 2022;13:926972. pmid:36035476
- 31. Hernández-Belmonte A, Pallarés JG. Effects of Velocity loss threshold during resistance training on strength and athletic adaptations: A systematic review with meta-analysis. Applied Sciences. 2022;12(9):4425.
- 32. Jukic I, Castilla AP, Ramos AG, Van Hooren B, McGuigan MR, Helms ER. The acute and chronic effects of implementing velocity loss thresholds during resistance training: A systematic review, meta-analysis, and critical evaluation of the literature. Sports Med. 2023;53(1):177–214. pmid:36178597
- 33. Larsen S, Kristiansen E, van den Tillaar R. Effects of subjective and objective autoregulation methods for intensity and volume on enhancing maximal strength during resistance-training interventions: A systematic review. PeerJ. 2021;9:e10663. pmid:33520457
- 34. Liao K-F, Wang X-X, Han M-Y, Li L-L, Nassis GP, Li Y-M. Effects of velocity based training vs. traditional 1RM percentage-based training on improving strength, jump, linear sprint and change of direction speed performance: A Systematic review with meta-analysis. PLoS One. 2021;16(11):e0259790. pmid:34793506
- 35. Nieto-Acevedo R, Romero-Moraleda B, Díaz-Lara FJ, Rubia A de la, González-García J, Mon-López D. A systematic review and meta-analysis of the differences in mean propulsive velocity between men and women in different exercises. Sports (Basel). 2023;11(6):118. pmid:37368568
- 36. Orange ST, Hritz A, Pearson L, Jeffries O, Jones TW, Steele J. Comparison of the effects of velocity-based vs. traditional resistance training methods on adaptations in strength, power, and sprint speed: A systematic review, meta-analysis, and quality of evidence appraisal. J Sports Sci. 2022;40(11):1220–34. pmid:35380511
- 37. Pontes SS, de Carvalho ALR, Almeida K de O, Neves MP, Ribeiro Schindler IFS, Alves IGN, et al. Effects of isokinetic muscle strengthening on muscle strength, mobility, and gait in post-stroke patients: A systematic review and meta-analysis. Clin Rehabil. 2019;33(3):381–94. pmid:30484329
- 38. Włodarczyk M, Adamus P, Zieliński J, Kantanista A. Effects of velocity-based training on strength and power in elite athletes-a systematic review. Int J Environ Res Public Health. 2021;18(10):5257. pmid:34069249
- 39. Zhang M, Tan Q, Sun J, Ding S, Yang Q, Zhang Z, et al. Comparison of velocity and percentage-based training on maximal strength: meta-analysis. Int J Sports Med. 2022;43(12):981–95. pmid:35255509
- 40. Zhang X, Feng S, Li H. The effect of velocity loss on strength development and related training efficiency: A dose-response meta-analysis. Healthcare (Basel). 2023;11(3):337. pmid:36766912
- 41. Zhang X, Feng S, Peng R, Li H. The role of velocity-based training (VBT) in enhancing athletic performance in trained individuals: A meta-analysis of controlled trials. Int J Environ Res Public Health. 2022;19(15):9252. pmid:35954603
- 42. Zhang X, Li H, Feng S, Su S. The effect of various training variables on developing muscle strength in velocity-based training: A systematic review and meta-analysis. Int J Sports Med. 2023;44(12):857–64. pmid:37196672
- 43. Guo W, Gao J, Mi X. A meta-analysis of randomized controlled trials: evaluating the efficacy of isokinetic muscle strengthening training in improving knee osteoarthritis outcomes. J Orthop Surg Res. 2025;20(1):95. pmid:39856723
- 44. Matarazzo CG, Peccin MS, Almeida GJM, Soares B, Cohen M. Isokinetic exercise for improving knee flexor and extensor muscles. Cochrane Database of Systematic Reviews. 2006.
- 45. Segal JB. Chapter 3: choosing the important outcomes for a systematic review of a medical test. J Gen Intern Med. 2012;27 Suppl 1(Suppl 1):S20-7. pmid:22648671
- 46. Wolfenden L, Movsisyan A, McCrabb S, Stratil JM, Yoong SL. Selecting review outcomes for systematic reviews of public health interventions. Am J Public Health. 2021;111(3):465–70. pmid:33476230
- 47. Saldanha IJ, Lindsley KB, Money S, Kimmel HJ, Smith BT, Dickersin K. Outcome choice and definition in systematic reviews leads to few eligible studies included in meta-analyses: A case study. BMC Med Res Methodol. 2020;20(1):30. pmid:32046643
- 48. Kirkham JJ, Davis K, Altman DG, Blazeby JM, Clarke M, Tunis S, et al. Core outcome Set-STAndards for Development: The COS-STAD recommendations. PLoS Med. 2017;14(11):e1002447. pmid:29145404
- 49. Prinsen CAC, Vohra S, Rose MR, Boers M, Tugwell P, Clarke M, et al. How to select outcome measurement instruments for outcomes included in a “Core Outcome Set” - a practical guideline. Trials. 2016;17(1):449. pmid:27618914
- 50. Williamson PR, Altman DG, Bagley H, Barnes KL, Blazeby JM, Brookes ST, et al. The COMET Handbook: version 1.0. Trials. 2017;18(Suppl 3):280. pmid:28681707
- 51. Campbell M, McKenzie JE, Sowden A, Katikireddi SV, Brennan SE, Ellis S, et al. Synthesis without meta-analysis (SWiM) in systematic reviews: Reporting guideline. BMJ. 2020;368:l6890. pmid:31948937
- 52. Shamseer L, Moher D, Clarke M, Ghersi D, Liberati A, Petticrew M, et al. Preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) 2015: Elaboration and explanation. BMJ. 2015;350:g7647. pmid:25555855
- 53. Page MJ, Moher D, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. PRISMA 2020 explanation and elaboration: Updated guidance and exemplars for reporting systematic reviews. BMJ. 2021;372:n160. pmid:33781993
- 54. Wassenaar TM, Williamson W, Johansen-Berg H, Dawes H, Roberts N, Foster C, et al. A critical evaluation of systematic reviews assessing the effect of chronic physical activity on academic achievement, cognition and the brain in children and adolescents: A systematic review. Int J Behav Nutr Phys Act. 2020;17(1):79. pmid:32571336
- 55. Hansford HJ, Wewege MA, Cashin AG, Hagstrom AD, Clifford BK, McAuley JH, et al. If exercise is medicine, why don’t we know the dose? An overview of systematic reviews assessing reporting quality of exercise interventions in health and disease. Br J Sports Med. 2022;56(12):692–700. pmid:35168956
- 56. Almeida MO, Yamato TP, Parreira P do CS, Costa LOP, Kamper S, Saragiotto BT. Overall confidence in the results of systematic reviews on exercise therapy for chronic low back pain: A cross-sectional analysis using the Assessing the Methodological Quality of Systematic Reviews (AMSTAR) 2 tool. Braz J Phys Ther. 2020;24(2):103–17. pmid:31113734
- 57.
Loaiza-Betancur AF, Bedoya EAP, Díaz-López VA, Echavarría-Rodríguez AM, Chulvi-Medrano I, Gonzáles LEI, et al. Effects Of Exercise Training On Blood Pressure: Protocol For An Overview Of Systematic Reviews. Springer Science and Business Media LLC. 2021. https://doi.org/10.21203/rs.3.rs-626803/v1
- 58.
Aromataris E, Lockwood C, Porritt K, Pilla B, Jordan Z. JBI Manual for Evidence Synthesis. JBI. 2024. https://doi.org/10.46658/jbimes-24-01
- 59. Moher D, Shamseer L, Clarke M, Ghersi D, Liberati A, Petticrew M, et al. Preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) 2015 statement. Syst Rev. 2015;4(1):1. pmid:25554246