McIntyre D R, Glover L H, Reynolds D C
Isotechnologies Inc., Hillsborough, NC, USA.
Clin Biomech (Bristol). 1993 Jul;8(4):203-9. doi: 10.1016/0268-0033(93)90015-A.
The purpose of this study was to determine if subjects differed in their preferred and maximum effort low-back-movement characteristics, and to determine if preferred low-back-movement characteristics could contribute to the prediction of maximum effort performance parameters. Sixteen subjects performed a flexibility trial, isometric exertions, and both maximum effort and preferred effort repetitive trunk motion against a resistance set at 50% of the recorded maximum isometric torques. All movement directions about all three primary axes were examined. The results showed that the preferred low-back-movement characteristics were different from those when a maximum effort was requested, although the performances were equally consistent. It was possible to reasonably predict maximum effort velocities from a knowledge of the preferred effort velocities.
本研究的目的是确定受试者在其偏好的和最大用力时的下背部运动特征是否存在差异，并确定偏好的下背部运动特征是否有助于预测最大用力时的表现参数。16名受试者进行了柔韧性测试、等长用力测试，以及在设定为记录的最大等长扭矩50%的阻力下进行最大用力和偏好用力的重复性躯干运动。对围绕所有三个主轴的所有运动方向进行了检查。结果表明，尽管表现同样稳定，但偏好的下背部运动特征与要求最大用力时的特征不同。根据对偏好用力速度的了解，有可能合理地预测最大用力速度。
