Athletics Department, Edmonds Community College, Edmonds, Washington.
Biomechanics Laboratory, Department of Health and Human Development, Western Washington University, Bellingham, Washington.
J Strength Cond Res. 2019 Jan;33(1):152-158. doi: 10.1519/JSC.0000000000002855.
Gilmore, SL, Brilla, LR, Suprak, DN, Chalmers, GR, and Dahlquist, DT. Effect of a high-intensity isometric potentiating warm-up on bat velocity. J Strength Cond Res 33(1): 152-158, 2019-This study examined the acute effect of a high-intensity isometric potentiating warm-up on subsequent maximal horizontal bat velocity in experienced female softball players (n = 28). The isometric potentiating warm-up consisted of 3 sets of 5-second maximal voluntary contractions held in the early swing phase position, pulling against an immovable device. As one of the simplest methods to use the postactivation potentiation (PAP) stimulus, the warm-up was designed to acutely enhance muscle performance by inducing PAP. Because optimal recovery duration after a potentiating warm-up can be highly variable, swing trials were conducted at predetermined rest intervals (1, 2, 4, 6, 8, 10, and 12 minutes) to identify the recovery time that may have allowed for maximal possible benefits. Bat velocity was measured immediately before bat-ball impact using MaxTRAQ motion analysis software. The results showed that maximal horizontal bat velocity was significantly enhanced 6 minutes after the isometric warm-up protocol (+1.27 m·s, +2.84 mph, +4.93%; p < 0.05). In experienced female softball athletes, a specific isometric warm-up may acutely enhance maximal horizontal bat velocity.
吉尔摩，SL，布里拉，LR，苏普拉克，DN，查默斯，GR 和达尔奎斯特，DT。高强度等长增强热身对球棒速度的影响。J 力量与调理研究 33（1）：152-158，2019-本研究考察了高强度等长增强热身对经验丰富的女子垒球运动员随后最大水平球棒速度的急性影响（n = 28）。等长增强热身包括 3 组 5 秒最大自主收缩，在早期挥杆阶段位置保持，对抗不可移动的装置。作为使用后激活增强（PAP）刺激的最简单方法之一，热身旨在通过诱导 PAP 来急性增强肌肉性能。因为增强热身后的最佳恢复时间可能变化很大，所以在预定的休息间隔（1、2、4、6、8、10 和 12 分钟）进行挥杆试验，以确定可能允许获得最大可能益处的恢复时间。使用 MaxTRAQ 运动分析软件在球棒击球前立即测量球棒速度。结果表明，等长热身方案后 6 分钟，最大水平球棒速度显著提高（+1.27 m·s，+2.84 mph，+4.93%；p < 0.05）。在经验丰富的女子垒球运动员中，特定的等长热身可能会急性提高最大水平球棒速度。
