School of Kinesiology, The University of Western Ontario, London, Ontario, Canada.
Gait Posture. 2011 May;34(1):6-12. doi: 10.1016/j.gaitpost.2011.02.013. Epub 2011 Apr 30.
Temporal patterns of quiescent electromyography termed 'gaps' were investigated in young and old men and women for a discrete task and daily activity. Gaps in women (1.3±3.2) and old adults (1.5±3.4) were fewer compared with men (4.7±6.7) and young adults (4.6±6.9) for the discrete task (p<0.001). Gap duration was shorter for women (0.1±0.2s) and old adults (0.1±0.3s) compared with men (0.2±0.3s) and young adults (0.2±0.2s) (p<0.01). For daily activity, gap number was similar with age, but gap duration and percentage of total time occupied by gaps were less in old compared with young adults (50%), and in women compared with men (43%) (p<0.001). Results suggest gap activity is sensitive to type and duration of activity and that old adults and women demonstrate less quiescent electromyography than young adults and men.
对年轻人和老年人在完成离散任务和日常活动时的静息肌电图的时间模式（称为“间隙”）进行了研究。与男性（4.7±6.7）和年轻人（4.6±6.9）相比，女性（1.3±3.2）和老年人（1.5±3.4）的间隙较少（p<0.001）。与男性（0.2±0.3s）和年轻人（0.2±0.2s）相比，女性（0.1±0.2s）和老年人（0.1±0.3s）的间隙持续时间更短（p<0.01）。对于日常活动，间隙数量与年龄无关，但与年轻人相比，老年人和女性的间隙持续时间和总时间中间隙所占的百分比（50%）较少，与男性相比，间隙持续时间和总时间中间隙所占的百分比（43%）较少（p<0.001）。结果表明，间隙活动对活动的类型和持续时间敏感，而且老年人和女性的静息肌电图活动比年轻人和男性少。
