School of Physiotherapy, Trinity College Dublin, Trinity Centre for Health Sciences, St James's Hospital, Dublin, Ireland.
Sports Biomech. 2013 Jun;12(2):132-42. doi: 10.1080/14763141.2012.726640.
Lumbar spine injury in rowers is common and ergometer rowing has been cited as a risk factor for this injury. The purpose of this study is to compare lumbar kinematics between ergometer and single scull rowing and to examine the effect of fatigue on kinematics. The sagittal lumbar spine motion of 19 elite male rowers (lumbar spine injury free in the previous six months) was measured with an electrogoniometer during a 'step test' on an ergometer and in a single sculling boat. Maximum range of lumbar flexion was recorded in standing for reference. Power output and heart rate were recorded during the ergometer tests. Heart rate was used as a surrogate for power output in the sculling test. Maximum lumbar flexion increased during the step test and was significantly greater on the ergometer (4.4 degrees +/- 0.9 degrees change), compared with the boat (+1.3 degrees +/- 1.1 degrees change), (3.1 degrees difference, p = 0.035). Compared to the voluntary range of motion, there is an increase of 11.3% (ergometer) and 4.1% (boat). Lumbar spine flexion increases significantly during the course of an ergometer trial while changes in a sculling boat were minimal. Such differences may contribute to the recent findings linking ergometer use to lower-back injury.
赛艇运动员的腰椎损伤较为常见，测功仪划船已被认为是这种损伤的一个危险因素。本研究的目的是比较测功仪和单桨划船时腰椎的运动学，并研究疲劳对运动学的影响。19 名男性精英赛艇运动员（在过去 6 个月中没有腰椎损伤）在测功仪上进行“台阶试验”和在单桨艇上时，使用电子测角计测量矢状面腰椎运动。站立时记录最大腰椎前屈范围作为参考。在测功仪测试中记录功率输出和心率。在划船测试中，心率被用作功率输出的替代指标。在台阶试验中，最大腰椎前屈度增加，在测功仪上（4.4 度 +/- 0.9 度变化）显著大于在艇上（+1.3 度 +/- 1.1 度变化）（差异 3.1 度，p = 0.035）。与自主运动范围相比，增加了 11.3%（测功仪）和 4.1%（艇）。在测功仪试验过程中，腰椎前屈度显著增加，而在艇上的变化则很小。这些差异可能导致最近的研究结果将测功仪的使用与下腰痛联系起来。
