Short-term effects of a trunk modification program on patellofemoral joint stress in asymptomatic runners
| Autor: | Brittany VanDine, Courtney Weeks, Heather Kincaid, Christopher Odell, Will Wu, Alyssa Dilauro, Hsiang-Ling Teng |
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| Rok vydání: | 2020 |
| Předmět: |
Male
medicine.medical_specialty Time Factors Knee Joint Automaticity Physical Therapy Sports Therapy and Rehabilitation Kinematics Asymptomatic Running Patellofemoral Joint Young Adult 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Stress (linguistics) medicine Humans Orthopedics and Sports Medicine Range of Motion Articular Gait Motor skill 030222 orthopedics business.industry Biomechanics 030229 sport sciences General Medicine Trunk Sagittal plane medicine.anatomical_structure Female medicine.symptom business human activities Ankle Joint Follow-Up Studies |
| Zdroj: | Physical Therapy in Sport. 44:107-113 |
| ISSN: | 1466-853X |
| Popis: | To evaluate short-term effects of a four-week gait retraining program using visual feedback on trunk flexion angle, patellofemoral joint (PFJ) stress, lower extremity biomechanics and motor skill automaticity.Longitudinal interventional study.University research laboratory.Twelve asymptomatic recreational runners (seven male and five female).Trunk kinematics as well as lower extremity kinematics and kinetics were assessed prior to training at week 1 (baseline) and week 2, 3, 4 and 8 (retention). PFJ stress was computed using a sagittal plane model. A dual-task procedure was performed to examine automaticity.At week 8, runners demonstrated 10.1° increase in trunk flexion angle (p .001) and 17.8% reduction in peak PFJ stress (p .001) compared to baseline. This is associated with a 16.8% decrease in knee extensor moment and less than 2.5° change in knee flexion angle. Participants also showed 33.3% increase in peak hip extensor moment and small reduction in peak ankle plantar flexor moment. Lastly, runners demonstrated automaticity of the modified skill with a dual-task cost of less than 3%.The gait retraining program is effective to elicit short term changes in trunk position, PFJ stress, and automaticity of the new motor skill. |
| Databáze: | OpenAIRE |
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