Assessing quadriceps strength in patellofemoral pain patients: A study on the reliability and validity of a low-cost strain-gauge for clinical practice

• Germari Deysel,

  Roles Conceptualization, Data curation, Methodology, Project administration, Writing – original draft, Writing – review & editing

  Affiliation Physical Activity, Sport, and Recreation (PhasRec) Research Focus Area, North-West University, Potchefstroom, North West Province, South Africa

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• Mariaan van Aswegen,

  Roles Conceptualization, Writing – original draft, Writing – review & editing

  Affiliation Physical Activity, Sport, and Recreation (PhasRec) Research Focus Area, North-West University, Potchefstroom, North West Province, South Africa

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• Mark Kramer

  Roles Conceptualization, Data curation, Formal analysis, Supervision, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: mark.kramer@nwu.ac.za

  Affiliation Physical Activity, Sport, and Recreation (PhasRec) Research Focus Area, North-West University, Potchefstroom, North West Province, South Africa

  https://orcid.org/0000-0003-2237-7549

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