Kalhovde John Magne, Johannessen Christian M M, Aasen Sigmund B, Tønnessen Espen
School of Health Sciences, Kristiania University College, 0153 Oslo, Norway.
Department of Education and Sports Science, University of Stavanger, 4036 Stavanger, Norway.
J Funct Morphol Kinesiol. 2025 Jan 14;10(1):31. doi: 10.3390/jfmk10010031.
The Keiser 10-rep leg press test protocol employs short inter-repetition rest intervals (2-38 s), raising concerns as to whether athletes perform optimally. The aim of this study was to compare the results of the standard Keiser protocol with an identical protocol modified to include a significantly longer inter-repetition rest intervals and to evaluate whether these effects differed between men and women. A total of 30 athletes (age 17.1 ± 0.9 years, height 177.8 ± 8.8 cm, and body mass 71.9 ± 11.3 kg) performed three separate tests (total of ~900 repetitions) in a Keiser A420 leg press machine, separated by 4 to 8 days. Test day 1 included a 1RM test followed by a 10-repetition force-velocity test with a standard rest intervals. Test days 2 and 3 involved the same test, with either standard short rest intervals or fixed 3 min inter-repetition rest intervals. Increasing inter-repetition rest intervals significantly improved and for men and and for women. The benefits of longer rest were notably more pronounced in men, particularly at light to moderate loads, where standard Keiser rest intervals are short (2-9 s). However, extending rest intervals beyond approximately 30 s, as applied at higher loads, provided no additional advantages. Longer rest intervals improved force-velocity metrics more in men than women, with the effect being most pronounced at light to moderate loads where standard protocols utilize short rest intervals (2-9 s). These findings suggest that women recover faster than men under these conditions. However, extending rest beyond 30 s at higher loads provides no additional benefits and is counterproductive at maximal loads.
凯泽尔10次重复腿部推举测试方案采用较短的重复间休息间隔（2 - 38秒），这引发了人们对运动员是否能达到最佳表现的担忧。本研究的目的是比较标准凯泽尔方案与经过修改的相同方案的结果，修改后的方案包括显著更长的重复间休息间隔，并评估这些影响在男性和女性之间是否存在差异。共有30名运动员（年龄17.1±0.9岁，身高177.8±8.8厘米，体重71.9±11.3千克）在凯泽尔A420腿部推举机上进行了三次独立测试（总共约900次重复），测试间隔为4至8天。第1天的测试包括一次1RM测试，随后是一次采用标准休息间隔的10次重复力 - 速度测试。第2天和第3天进行相同的测试，采用标准的短休息间隔或固定的3分钟重复间休息间隔。增加重复间休息间隔显著提高了男性的[具体指标1]和[具体指标2]，以及女性的[具体指标3]和[具体指标4]。更长休息间隔的益处在男性中尤为明显，特别是在轻至中等负荷下（标准凯泽尔休息间隔较短，为2 - 9秒）。然而，在较高负荷下将休息间隔延长至约30秒以上并没有额外的优势。更长的休息间隔对男性力 - 速度指标的改善比对女性更明显，这种影响在标准方案采用短休息间隔（2 - 9秒）的轻至中等负荷下最为显著。这些发现表明，在这些条件下女性比男性恢复得更快。然而，在较高负荷下将休息延长至30秒以上没有额外益处，在最大负荷下甚至会适得其反。
