McGill S M, Childs A, Liebenson C
Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Ontario, Canada.
Arch Phys Med Rehabil. 1999 Aug;80(8):941-4. doi: 10.1016/s0003-9993(99)90087-4.
To establish isometric endurance holding times, as well as ratios between torso extensors, flexors, and lateral flexors (stabilizers), for clinical assessment and rehabilitation targets.
Simple measurement of endurance times in four tests performed in random order by a healthy cohort. To measure reliability, a subsample also performed the tests again 8 weeks later.
University laboratory.
Seventy-five young healthy subjects (31 men, 44 women).
Women had longer endurance times than men for torso extension, but not for torso flexion or for the "side bridge" exercise, which challenges the lateral flexors (stabilizers). Men could sustain the "side bridge" for 65% of their extensor time and 99% of their flexion time, whereas women could sustain the "side bridge" for only 39% of their extensor time and 79% of their flexion time. The tests proved reliable, with reliability coefficients of >.97 for the repeated tests on 5 consecutive days and again 8 weeks later.
Healthy young men and women possess different endurance profiles for the spine stabilizing musculature. Given the growing support for quantification of endurance, these data of endurance times and their ratios between extensor, flexor, and lateral flexor groups in healthy normal subjects are useful for patient evaluation and for providing clinical training targets.
确定等长耐力保持时间，以及躯干伸肌、屈肌和侧屈肌（稳定肌）之间的比例，用于临床评估和康复目标设定。
由健康队列以随机顺序进行四项测试，简单测量耐力时间。为测量可靠性，一个子样本在8周后再次进行测试。
大学实验室。
75名年轻健康受试者（31名男性，44名女性）。
女性在躯干伸展方面的耐力时间比男性长，但在躯干屈曲或挑战侧屈肌（稳定肌）的“侧桥”运动方面则不然。男性“侧桥”的持续时间为其伸肌时间的65%和屈肌时间的99%，而女性“侧桥”的持续时间仅为其伸肌时间的39%和屈肌时间的79%。测试证明具有可靠性，连续5天以及8周后的重复测试的可靠性系数均>.97。
健康的年轻男性和女性在脊柱稳定肌肉组织方面具有不同的耐力特征。鉴于对耐力量化的支持不断增加，这些健康正常受试者的耐力时间数据及其在伸肌、屈肌和侧屈肌组之间的比例，对于患者评估和提供临床训练目标很有用。
