Bradley S Neal1, Christian J Barton2, Aleksandra Birn-Jeffrey3, Monica Daley4, Dylan Morrissey5. 1. Sports & Exercise Medicine, Queen Mary University of London, United Kingdom; Pure Sports Medicine, London, United Kingdom. 2. Sports & Exercise Medicine, Queen Mary University of London, United Kingdom; La Trobe Sport and Exercise Medicine Research Centre, La Trobe University, Bundoora, Victoria, Australia; School of Allied Health, La Trobe University, Melbourne, Victoria, Australia; Department of Physical Therapy, University of British Columbia, Vancouver, Canada. 3. Sports & Exercise Medicine, Queen Mary University of London, United Kingdom; School of Engineering and Materials Science, Queen Mary University of London, United Kingdom. 4. Comparative Biomedical Sciences, Royal Vetinary College, United Kingdom. 5. Sports & Exercise Medicine, Queen Mary University of London, United Kingdom; Physiotherapy Department, Bart's Health NHS Trust, London, United Kingdom. Electronic address: d.morrissey@qmul.ac.uk.
Abstract
OBJECTIVES: To explore feasibility of recruitment and retention of runners with patellofemoral pain (PFP), before delivering a step rate intervention. DESIGN: Feasibility study. SETTING: Human performance laboratory. PARTICIPANTS: A mixed-sex sample of runners with PFP (n = 11). MAIN OUTCOME MEASURES: Average/worst pain and the Kujala Scale were recorded pre/post intervention, alongside lower limb kinematics and surface electromyography (sEMG), sampled during a 3 KM treadmill run. RESULTS: Recruitment and retention of a mixed-sex cohort was successful, losing one participant to public healthcare and with kinematic and sEMG data lost from single participants only. Clinically meaningful reductions in average (MD = 2.1, d = 1.7) and worst pain (MD = 3.9, d = 2.0) were observed. Reductions in both peak knee flexion (MD = 3.7°, d = 0.78) and peak hip internal rotation (MD = 5.1°, d = 0.96) were observed, which may provide some mechanistic explanation for the identified effects. An increase in both mean amplitude (d = 0.53) and integral (d = 0.58) were observed for the Vastus Medialis Obliqus (VMO) muscle only, of questionable clinical relevance. CONCLUSIONS: Recruitment and retention of a mixed sex PFP cohort to a step rate intervention involving detailed biomechanical measures is feasible. There are indications of both likely efficacy and associated mechanisms. Future studies comparing the efficacy of different running retraining approaches are warranted.
OBJECTIVES: To explore feasibility of recruitment and retention of runners with patellofemoral pain (PFP), before delivering a step rate intervention. DESIGN: Feasibility study. SETTING: Human performance laboratory. PARTICIPANTS: A mixed-sex sample of runners with PFP (n = 11). MAIN OUTCOME MEASURES: Average/worst pain and the Kujala Scale were recorded pre/post intervention, alongside lower limb kinematics and surface electromyography (sEMG), sampled during a 3 KM treadmill run. RESULTS: Recruitment and retention of a mixed-sex cohort was successful, losing one participant to public healthcare and with kinematic and sEMG data lost from single participants only. Clinically meaningful reductions in average (MD = 2.1, d = 1.7) and worst pain (MD = 3.9, d = 2.0) were observed. Reductions in both peak knee flexion (MD = 3.7°, d = 0.78) and peak hip internal rotation (MD = 5.1°, d = 0.96) were observed, which may provide some mechanistic explanation for the identified effects. An increase in both mean amplitude (d = 0.53) and integral (d = 0.58) were observed for the Vastus Medialis Obliqus (VMO) muscle only, of questionable clinical relevance. CONCLUSIONS: Recruitment and retention of a mixed sex PFP cohort to a step rate intervention involving detailed biomechanical measures is feasible. There are indications of both likely efficacy and associated mechanisms. Future studies comparing the efficacy of different running retraining approaches are warranted.
Authors: José Roberto de Souza Júnior; Pedro Henrique Reis Rabelo; Thiago Vilela Lemos; Jean-Francois Esculier; João Pedro da Silva Carto; João Paulo Chieregato Matheus Journal: PLoS One Date: 2021-05-12 Impact factor: 3.240
Authors: Jéssica Bianca Aily; Christian John Barton; Stela Marcia Mattiello; Danilo De Oliveira Silva; Marcos De Noronha Journal: Int J Telerehabil Date: 2020-12-08