Fig 1.
Modified CONSORT flow diagram.
Fig 2.
Summary of the experimental setup; COP = center of pressure recordings, EMG = electromyography data, MRI = magnetic resonance imaging.
Table 1.
Summary of baseline data of patients with sacroiliac joint (SIJ) pain, pain duration and numerical rating scale (NRS) data.
Mean values ± standard deviations are given. BMI = body mass index
Fig 3.
A: Application of a pelvic belt (SacroLoc, Bauerfeind AG, Zeulenroda-Triebes, Germany) to a 26 year-old female control. B: Recording of gait pattern data on force plates in all participants without pelvic belt, under moderate and maximum tolerable compression.
Fig 4.
Short-form 36 survey of patients with sacroiliac joint pain, controls and comparison to low back pain patients: Six-week belt application improved health-related quality of life in the patients.
PF = physical role functioning, RP = role physical, BP = bodily pain, GH = general health perceptions, VT = vitality, SF = social role functioning, RE = role emotional functioning, MH = mental health.
Table 2.
Short Form 36 (SF36) transformed scores of patients with sacroiliac joint (SIJ) pain prior to pelvic belt application (pre) and in a six-weeks follow up with pelvic belt application (post).
Mean values ± standard deviations are given.
Table 3.
Post-hoc effect size and power analyses on the Numerical Rating Scale and Short-Form 36 physical summary and mental summary.
Table 4.
Comparison of the alterations of muscle activation between SIJ patients and controls related to moderate and maximum tension.
Fig 5.
Numerical Rating Scale of patients with sacroiliac joint pain in the investigation day without and with pelvic belt application: Pelvic belt application is related to significant decreases of pain perceptions, as compared to the last two-week perception without belt application.
** p < 0.01.
Fig 6.
Summary of differences of muscle activation between patients with sacroiliac joint pain and controls and pelvic belt-related effects.
Fig 7.
Gait analyses of patients with sacroiliac joint pain and healthy controls without and with pelvic belt application: Cadence: ○ = no pelvic belt; Δ = pelvic belt application with moderate tension; □ = pelvic belt application with maximum tension.
Fig 8.
Gait analyses of patients with sacroiliac joint pain and healthy controls without and with pelvic belt application: Gait velocity; ○ = no pelvic belt; Δ = pelvic belt application with moderate tension; □ = pelvic belt application with maximum tension.
Table 5.
Comparison of gait pattern data of SIJ patients and controls without pelvic belt application, under moderate and maximum belt tension.
Table 6.
Inner-group comparison of the gait pattern data within SIJ patients or controls without pelvic belt application, under moderate and maximum tension (p-values refer to the data given in Table 5).