Stull G A, Kearney J T
Med Sci Sports. 1978 Summer;10(2):109-12.
Each of 22 subjects squeezed a hand-gripping device for as long as possible at a tension of 50% of his maximum voluntary contraction. When the prescribed tension could no longer be maintained, the subject was given a predetermined rest period and at its conclusion again squeezed the hand dynamometer in a second all-out bout. The length of the interbout rest period was either 5, 10, 20, 40, 80, 160, 320, 640, 1280, or 2560 sec. Each subject experienced every rest period with the order of administration assigned at random. At least three days intervened between successive testing sessions. The mean time the subjects persisted during the first bout was 120.25 sec. The percentage of recovery, calculated by dividing the holding time of the first bout into the time of the second, ranged from 20.3% after 5 sec of rest to 86.8% following the 2,560-sec rest interval. An analysis of the percentages of recovery at the various time periods revealed that the pattern of submaximal isometric endurance recovery folowed a three-component exponential curve.
22名受试者每人在相当于其最大自主收缩力50%的张力下尽可能长时间地挤压一个手握式装置。当无法再维持规定的张力时，受试者会有一个预定的休息期，休息期结束后，再次全力挤压握力计进行第二轮测试。两次测试之间的休息期长度分别为5、10、20、40、80、160、320、640、1280或2560秒。每个受试者都经历了每个休息期，给药顺序随机分配。连续测试之间至少间隔三天。受试者在第一轮测试中持续的平均时间为120.25秒。恢复百分比通过将第一轮的保持时间除以第二轮的时间计算得出，休息5秒后的恢复率为20.3%，休息2560秒后的恢复率为86.8%。对不同时间段恢复百分比的分析表明，次最大等长耐力恢复模式遵循三分量指数曲线。
