Age-related changes in trunk muscle activity and spinal and lower limb kinematics during gait
Age-related changes in trunk muscle activity and spinal and lower limb kinematics during gait
复制标题
DOI：
10.1371/journal.pone.0206514
复制
发表时间：
2018-11-08
期刊：
影响因子：
3.7
通讯作者：
Falla, Deborah
中科院分区：
文献类型：
--
作者：
Crawford, Rebecca;Gizzi, Leonardo;Falla, Deborah
年龄对脊髓肌肉激活模式的影响及其与运动学的关系知之甚少。我们的目的是了解年龄相关的变化，脊柱和躯干肌肉活动，除了脊柱和下肢运动学在跑步机上行走在各种条件下。进行了一项观察性研究，评估了无症状的年轻人（n = 10; 3 F，7 M; 26.3 +/-2.5岁）和老年人（n = 9; 3 F，6 M; 67.1 +/-4.2岁）成年人以2 km/h和4 km/h的速度在跑步机上行走，每个跑步机的倾斜度为0、1、5和10%。单侧（右侧）肌电图（EMG）记录从深和浅多裂肌（肌内）和竖脊肌和腹侧肌（表面）;躯干和腿部运动学也进行了测量。肌肉活动的特征在于活动的峰值幅度和持续时间，以及步态周期中峰值幅度的时间点（0-100%）。老年人的浅表多裂肌激活峰值较低（p
The influence of age on spinal muscle activation patterns and its relation to kinematics is poorly understood. We aimed at understanding age-related changes to spine and trunk muscle activity in addition to spinal and lower limb kinematics during treadmill walking under various conditions. An observational study was conducted evaluating asymptomatic young (n = 10; 3F, 7M; 26.3 +/- 2.5yrs) and older (n = 9; 3F, 6M; 67.1 +/- 4.2yrs) adults' treadmill walking at 2km/h and 4km/h, each at 0, 1, 5, and 10% inclination. Unilateral (right side) electromyography (EMG) was recorded from deep and superficial multifidus (intramuscular) and erector spinae and abdominal obliques (surface); trunk and leg kinematics were also measured. Muscle activity was characterised by peak amplitude and duration of activity, and the time-point of peak amplitude in the gait cycle (0-100%). Peak activation in older adults was lower for the superficial multifidus (p