McBride Jeffrey M, Blow Daniel, Kirby Tyler J, Haines Tracie L, Dayne Andrea M, Triplett N Travis
Department of Health, Leisure, and Exercise Science, Neuromuscular Laboratory, Appalachian State University, Boone, North Carolina 28608, USA.
J Strength Cond Res. 2009 Sep;23(6):1633-6. doi: 10.1519/JSC.0b013e3181b2b8aa.
The purpose of this investigation was to examine the relationship between maximal squat strength and sprinting times. Seventeen Division I-AA male football athletes (height = 1.78 +/- 0.04 m, body mass [BM] = 85.9 +/- 8.8 kg, body mass index [BMI] = 27.0 +/- 2.6 kg/m2, 1 repetition maximum [1RM] = 166.5 +/- 34.1 kg, 1RM/BM = 1.94 +/- 0.33) participated in this investigation. Height, weight, and squat strength (1RM) were assessed on day 1. Within 1 week, 5, 10, and 40 yard sprint times were assessed. Squats were performed to a 70 degree knee angle and values expressed relative to each subject's BM. Sprints were performed on a standard outdoor track surface with timing gates placed at the previously mentioned distances. Statistically significant (p < or = 0.05) correlations were found between squat 1RM/BM and 40 yard sprint times (r = -0.605, p = 0.010, power = 0.747) and 10 yard sprint times (r = -0.544, p = 0.024, power = 0.626). The correlation approached significance between 5 yard sprint times and 1RM/BM (r = -0.4502, p = 0.0698, power = 0.4421). Subjects were then divided into those above 1RM/BM of 2.10 and below 1RM/BM of 1.90. Subjects with a 1RM/BM above 2.10 had statistically significantly lower sprint times at 10 and 40 yards in comparison with those subjects with a 1RM/BM ratio below 1.90. This investigation provides additional evidence of the possible importance of maximal squat strength relative to BM concerning sprinting capabilities in competitive athletes.
本研究的目的是探讨最大深蹲力量与短跑时间之间的关系。17名一级分区I-AA组男子足球运动员（身高 = 1.78 ± 0.04米，体重[BM] = 85.9 ± 8.8千克，体重指数[BMI] = 27.0 ± 2.6千克/平方米，1次重复最大值[1RM] = 166.5 ± 34.1千克，1RM/BM = 1.94 ± 0.33）参与了本研究。在第1天评估身高、体重和深蹲力量（1RM）。在1周内，评估5码、10码和40码的短跑时间。深蹲至膝关节角度为70度，数值以相对于每个受试者的体重表示。短跑在标准室外跑道表面进行，在上述距离处设置计时门。发现深蹲1RM/BM与40码短跑时间（r = -0.605，p = 0.010，检验效能 = 0.747）以及10码短跑时间（r = -0.544，p = 0.024，检验效能 = 0.626）之间存在统计学显著相关性（p ≤ 0.05）。5码短跑时间与1RM/BM之间的相关性接近显著（r = -0.4502，p = 0.0698，检验效能 = 0.4421）。然后将受试者分为1RM/BM高于2.10和低于1.90的两组。与1RM/BM比率低于1.90的受试者相比，1RM/BM高于2.10的受试者在10码和40码处的短跑时间在统计学上显著更低。本研究为最大深蹲力量相对于体重在竞技运动员短跑能力方面的潜在重要性提供了更多证据。
