Effects of prolonged walking with body borne load on knee adduction biomechanics

Autor: Tyler N. Brown, Micah D. Drew, Samantha M. Krammer
Rok vydání: 2021
Předmět:
Zdroj: Gait Posture
ISSN: 0966-6362
Popis: BACKGROUND: Soldiers that suffer a service-related knee musculoskeletal injury routinely develop joint osteoarthritis. Knee osteoarthritis is a substantial and costly problem among soldiers, yet it is unknown how body borne load and duration of walking impact knee adduction biomechanics linked to progression and severity of osteoarthritis. RESEARCH QUESTION: This study determined the adaptations in magnitude and variability of knee adduction joint angle (KAA) and moment (KAM) during prolonged walking with body borne load. METHODS: Thirteen recreationally active participants had knee biomechanics quantified while walking over-ground for 60-minutes at 1.3 m/s with three body borne loads (0, 15, and 30 kg). Magnitude and variability of KAA and KAM measures were quantified and submitted to a RM ANOVA to test the main effect and interactions between load ( 0, 15 and 30 kg) and time ( 0, 15, 30, 45 and 60 minutes ). RESULTS: Body borne load increased peak KAM (p0.05). SIGNIFICANCE: Prolonged walking with heavy body borne load increased knee adduction biomechanics related to osteoarthritis. Adding heavy body borne load increased in peak KAM whereas duration of walking increased KAA, knee biomechanics that may increase loading of the medial knee joint compartment and risk of OA at the joint.
Databáze: OpenAIRE