Olivier N, Weissland T, Berthoin S, Legrand R, Prieur F, Rogez J, Thevenon A
Centre de rééducation Les Hautois, place de la IV République, 62590 Oignies, France.
Ann Readapt Med Phys. 2008 Dec;51(9):707-13. doi: 10.1016/j.annrmp.2008.09.002. Epub 2008 Oct 24.
To examine cardiorespiratory fitness changes in subjects having undergone knee surgery and to assess the benefits of one-leg cycling aerobic training program during the rehabilitation period.
Two groups of 12 patients took part in this study. The control group profited from a five weeks conventional rehabilitation in day hospital without cardiorespiratory training. The second group profited in supplement from a one-leg cycling aerobic training program with the valid leg. The subjects were trained for 21 min, by alternating 3 min at 70% and 3 min at 85% of VO(2 peak). They totaled 15 sessions spread over five weeks. The initial evaluation (T1) is carried out the first day of rehabilitation and the final evaluation (T2) at a distance within 35 days. The evaluation consisted in realizing a maximal graded tests starting from the valid leg.
After five weeks of conventional rehabilitation, we record a reduction of peak power output (W(peak)), peak oxygen uptake (VO(2 peak)) and peak minute ventilation (VE(peak)), respectively of 11, 12 and 13% for the control group. On the other hand, in T2, the training group has on average identical maximum values and some of them increased (W(peak): +14%; VE(peak): +15%). The first and second ventilatory thresholds appear with higher intensities of exercises.
After knee surgery, conventional rehabilitation does not limit cardiorespiratory deconditioning. One leg cycling appears to be an adapted method to stop the effects of hypoactivity.
研究接受膝关节手术患者的心肺适能变化，并评估康复期间单腿骑行有氧训练计划的益处。
两组各12名患者参与本研究。对照组在日间医院接受为期五周的常规康复治疗，不进行心肺训练。第二组在常规康复基础上，使用健侧腿进行单腿骑行有氧训练计划。受试者进行21分钟训练，以70%和85%的VO₂峰值交替训练3分钟。五周内共进行15次训练。初始评估（T1）在康复第一天进行，最终评估（T2）在35天内进行。评估包括从健侧腿开始进行最大分级测试。
经过五周的常规康复，对照组的峰值功率输出（W(peak)）、峰值摄氧量（VO₂峰值）和峰值分钟通气量（VE(peak)）分别降低了11%、12%和13%。另一方面，在T2时，训练组的平均最大值相同，其中一些指标有所增加（W(peak)：+14%；VE(peak)：+15%）。第一和第二通气阈值在更高强度的运动中出现。
膝关节手术后，常规康复并不能限制心肺功能下降。单腿骑行似乎是一种适应的方法，可以阻止活动不足的影响。
