Physical therapy in sport : official journal of the Association of Chartered Physiotherapists in Sports Medicine · 2025
Postural control strategies in individuals with and without chronic ankle instability during the reach phase of the posteromedial direction of the star excursion balance test.
СтатьяНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Nozu Shojiro, Johnson Kristin A, Matsuda Tadamitsu, Takazawa Yuji
Аннотация
OBJECTIVE: To compare center of mass (COM) and center of pressure (COP) displacement, joint angles, and muscle activity for the ankle, knee, and hip during the posteromedial (PM) reach direction of the Star Excursion Balance Test between individuals with chronic ankle instability (CAI) and healthy individuals.
DESIGN: Cross-sectional Study.
SETTING: Biomechanics laboratory.
PARTICIPANTS: Fifteen individuals with CAI (age: 20.0 ± 1.2 y) and 20 healthy individuals (age: 20.6 ± 0.8 y).
MAIN OUTCOME MEASURES: The maximum reach distance (MRD). The COM and COP displacement, and ankle, knee, and hip joint angles of the stance limb during the PM reach task measured via a 3D motion analysis system. Electromyography (EMG) was also recorded during the task from the tibialis anterior (TA), soleus, peroneus longus, vastus medialis (VM), biceps femoris, and gluteus medius muscles.
RESULTS: MRD of the CAI group was shorter than the healthy group (P = 0.005). The CAI group showed higher COM positioning (P = 0.007), less knee flexion (P = 0.009), and lower muscle activity in TA (P = 0.04), and VM (P = 0.007) during performance of the PM reach as compared to the healthy group.
CONCLUSIONS: These findings suggest that individuals with CAI demonstrate altered postural control strategies during PM reach performance, likely contributing to a shorter MRD.
DESIGN: Cross-sectional Study.
SETTING: Biomechanics laboratory.
PARTICIPANTS: Fifteen individuals with CAI (age: 20.0 ± 1.2 y) and 20 healthy individuals (age: 20.6 ± 0.8 y).
MAIN OUTCOME MEASURES: The maximum reach distance (MRD). The COM and COP displacement, and ankle, knee, and hip joint angles of the stance limb during the PM reach task measured via a 3D motion analysis system. Electromyography (EMG) was also recorded during the task from the tibialis anterior (TA), soleus, peroneus longus, vastus medialis (VM), biceps femoris, and gluteus medius muscles.
RESULTS: MRD of the CAI group was shorter than the healthy group (P = 0.005). The CAI group showed higher COM positioning (P = 0.007), less knee flexion (P = 0.009), and lower muscle activity in TA (P = 0.04), and VM (P = 0.007) during performance of the PM reach as compared to the healthy group.
CONCLUSIONS: These findings suggest that individuals with CAI demonstrate altered postural control strategies during PM reach performance, likely contributing to a shorter MRD.