Effect of Low-Load Blood Flow Restriction Training on Patients With Functional Ankle Instability: A Randomized Controlled Trial.
Autor: | Ziliang Wen, Jiang Zhu, Xuelian Wu, Bing Zheng, Li Zhao, Xin Luo, Zonghui Wu |
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Předmět: |
DORSIFLEXION
ANALYSIS of variance JOINT instability ANKLE joint BLOOD flow restriction training POSTURAL balance MUSCLE strength testing TREATMENT effectiveness RANDOMIZED controlled trials TIBIALIS anterior PRE-tests & post-tests T-test (Statistics) MUSCLE strength RESEARCH funding BODY movement FOOT BLIND experiment PERONEUS longus CALF muscles REPEATED measures design STATISTICAL sampling PLANTARFLEXION CONTROL groups DATA analysis software EVALUATION |
Zdroj: | Journal of Sport Rehabilitation; Nov2023, Vol. 32 Issue 8, p853-872, 10p |
Abstrakt: | Context: Decreased muscle strength and balance in patients with functional ankle instability (FAI) can be effectively improved by ankle strength training. Low-load blood flow restriction (LL-BFR) training increases muscle size and strength, but there is limited evidence from studies on muscle strength and balance in FAI patients. Objective: To study the effects of LL-BFR training versus high-load training (HLT) on muscle strength and balance in FAI patients. Design: Randomized controlled trial. Participants: Forty-six young adults with a history of FAI. Interventions: Participants in the LL-BFR and HLT groups performed 4 sets (30 x 15 x 15 x 15) of ankle training at 20% to 40% of the one-repetition maximum and 70% to 85% one-repetition maximum, respectively, twice a week for 6 weeks. Main Outcome Measure(s): Plantar flexion, dorsiflexion, inversion, and eversion muscle strength, and the Y-balance test scores were assessed at baseline and after 3 and 6 weeks; the thickness of the tibialis anterior, triceps surae, and peroneus longus muscles were assessed at baseline and after 6 weeks. Results: Inversion, eversion, dorsiflexion, and plantar flexion muscle strength; tibialis anterior, triceps surae, and peroneus longus thickness; and Y-balance test scores were significantly increased in the LL-BFR group after 3 and 6 weeks compared with baseline (P < .05), with no significant difference between the LL-BFR and HLT groups after 6 weeks (P > .05). However, at the end of 3 weeks, eversion muscle strength and Y-balance test scores were significantly higher in the LL-BFR group than in the HLT group (P < .05). Conclusions: Over 6 weeks, LL-BFR training was as effective as HLT in improving ankle muscle strength, muscle thickness, and balance in FAI patients, but LL-BFR training improved the ankle eversion muscle strength and dynamic balance more than HLT did in the early stages of the intervention. This finding will provide a new intervention strategy for the clinical rehabilitation of FAI patients. [ABSTRACT FROM AUTHOR] |
Databáze: | Complementary Index |
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