Department of Sport Management and Biomechanics, Faculty of Education Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran.
Department of Sport Science, Farhangian University, Sanandaj, Iran.
Gait Posture. 2022 Jan;91:260-265. doi: 10.1016/j.gaitpost.2021.11.002. Epub 2021 Nov 6.
Social isolation through quarantine represents an effective means to prevent COVID-19 infection. A negative side-effect of quarantine is low physical activity.
What are the differences of running kinetics and muscle activities of recreational runners with a history of COVID-19 versus healthy controls?
Forty men and women aged 20-30 years participated in this study and were divided into two experimental groups. Group 1 (age: 24.1 ± 2.9) consisted of participants with a history of COVID-19 (COVID group) and group 2 (age: 24.2 ± 2.7) of healthy age and sex-matched controls (controls). Both groups were tested for their running kinetics using a force plate and electromyographic activities (i.e., tibialis anterior [TA], gastrocnemius medialis [Gas-M], biceps femoris [BF], semitendinosus [ST], vastus lateralis [VL], vastus medialis [VM], rectus femoris [RF], gluteus medius [Glut-M]).
Results demonstrated higher peak vertical (p = 0.029; d=0.788) and medial (p = 0.004; d=1.119) ground reaction forces (GRFs) during push-off in COVID individuals compared with controls. Moreover, higher peak lateral GRFs were found during heel contact (p = 0.001; d=1.536) in the COVID group. COVID-19 individuals showed a shorter time-to-reach the peak vertical (p = 0.001; d=3.779) and posterior GRFs (p = 0.005; d=1.099) during heel contact. Moreover, the COVID group showed higher Gas-M (p = 0.007; d=1.109) and lower VM activity (p = 0.026; d=0.811) at heel contact.
Different running kinetics and muscle activities were found in COVID-19 individuals versus healthy controls. Therefore, practitioners and therapists are advised to implement balance and/or strength training to improve lower limbs alignment and mediolateral control during dynamic movements in runners who recovered from COVID-19.
通过隔离实施社会隔离是预防 COVID-19 感染的有效手段。隔离的一个负面影响是身体活动减少。
与健康对照组相比，有 COVID-19 病史的娱乐跑步者的跑步动力学和肌肉活动有何不同？
40 名年龄在 20-30 岁的男性和女性参加了这项研究，并分为两个实验组。第 1 组（年龄：24.1±2.9）由有 COVID-19 病史的参与者（COVID 组）组成，第 2 组（年龄：24.2±2.7）由健康年龄和性别匹配的对照组组成。两组均使用测力板和肌电图活动（即胫骨前肌 [TA]、腓肠肌内侧 [Gas-M]、股二头肌 [BF]、半腱肌 [ST]、股外侧肌 [VL]、股中间肌 [VM]、股直肌 [RF]、臀中肌 [Glut-M]）进行跑步动力学测试。
结果表明，与对照组相比，COVID 个体在蹬离时具有更高的垂直（p=0.029；d=0.788）和内侧（p=0.004；d=1.119）地面反作用力（GRF）峰值。此外，在 COVID 组中，在脚跟接触时发现更高的横向 GRF 峰值（p=0.001；d=1.536）。COVID-19 个体在脚跟接触时达到垂直（p=0.001；d=3.779）和后部 GRF 峰值的时间更短（p=0.005；d=1.099）。此外，COVID 组在脚跟接触时显示出更高的 Gas-M（p=0.007；d=1.109）和更低的 VM 活动（p=0.026；d=0.811）。
与健康对照组相比，COVID-19 个体的跑步动力学和肌肉活动不同。因此，建议从业者和治疗师实施平衡和/或力量训练，以改善从 COVID-19 中康复的跑步者在动态运动中的下肢对齐和内外侧控制。
