Department of Medicine O, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark; Department of Health Sciences, Division of Physiotherapy, Lund University, Lund, Sweden.
Scand J Med Sci Sports. 2013 Oct;23(5):635-44. doi: 10.1111/j.1600-0838.2011.01441.x. Epub 2012 Jan 31.
Force production profile and neuromuscular activity during slide-based and stationary ergometer rowing at standardized submaximal power output were compared in 14 male and 8 female National Team rowers. Surface electromyography (EMG) was obtained in selected thoracic and leg muscles along with synchronous measurement of handle force and rate of force development (RFD). Compared to stationary conditions, slide-based peak force decreased by 76 (57-95) N (mean 95% CI) in males (P < 0.001) and 20 (8-31) N (P < 0.05) in females. Stroke rate increased (+10.7%) and late-phase RFD decreased (-20.7%) in males (P < 0.05). Neuromuscular activity in m. vastus lateralis decreased in the initial drive phase from 59% to 51% of EMG max in males and from 57% to 52% in females (P < 0.01-0.05), while also decreasing in the late recovery phase from 20% to 7% in males and 17% to 7% in females (P < 0.01). Peak force and maximal neuromuscular activity in the shoulder retractors always occurred in the second quartile of the drive phase. In conclusion, peak force and late-phase RFD (males) decreased and stroke rate increased (males) during slide-based compared to stationary ergometer rowing, potentially reducing the risk of overuse injury. Neuromuscular activity was more affected in leg muscles than thoracic muscles by slide-based ergometer rowing.
在标准化的次最大输出功率下，比较了 14 名男性和 8 名女性国家赛艇队运动员在基于滑行和固定测功仪上进行划船时的力产生曲线和神经肌肉活动。在选定的胸肌和腿部肌肉中同时获得表面肌电图（EMG），并同步测量手柄力和力发展率（RFD）。与固定条件相比，男性基于滑行的峰值力下降了 76（57-95）N（平均 95%置信区间）（P < 0.001），女性下降了 20（8-31）N（P < 0.05）。男性划桨率增加（+10.7%），后期 RFD 降低（-20.7%）（P < 0.05）。男性股外侧肌的初始驱动阶段的神经肌肉活动从 EMG 最大值的 59%下降到 51%（P < 0.01-0.05），而在后期恢复阶段从 20%下降到 7%（P < 0.01）。男性和女性的肩伸肌的峰值力和最大神经肌肉活动始终发生在驱动阶段的第二个四分位数。总之，与固定测功仪划船相比，基于滑行的划船会降低峰值力和后期 RFD（男性），并增加划桨率（男性），从而降低过度使用损伤的风险。神经肌肉活动在腿部肌肉比在胸部肌肉更容易受到基于滑行的测功仪划船的影响。
