Guggenheimer Joshua D, Dickin D Clark, Reyes Gabriel F, Dolny Dennis G
Department of Health, Physical Education, Recreation, and Dance, University of Idaho, Human Performance Laboratory, Moscow, Idaho, USA.
J Strength Cond Res. 2009 Jul;23(4):1135-9. doi: 10.1519/JSC.0b013e318191892e.
Previous research suggests that specific preconditioning activities such as whole-body vibration (WBV) and resistance training may play an important role in ensuing dynamic activities. The purpose of this study was to examine the effects of 2 preconditioning activities, WBV and power cleans (PC), on acute sprint performance. Two studies were conducted in which 14 (WBV) and 9 (PC) male track and field athletes were subjects. The WBV treatment consisted of 4 bouts of 5 seconds of high-knee running on a vibrating platform at 0, 30, 40, or 50 Hz. The PC treatment consisted of 3 PC reps at 90% 1RM. In both cases, acute sprint performance was the dependent variable of interest. For WBV, split times were recorded at 10, 20, and 40 m. Reaction times (RXN) as well as 5-, 10-, and 40-m split times were recorded for the PC study. Results indicated no significant differences between treatment and nontreatment groups for both studies. However, significant correlations were present between RXN and 5-m splits (r = 0.65) and RXN and 10-m splits (r = 0.63), although they decreased as a function of sprint distance to r = 0.43 at 40 m. These results suggest little efficacy for the use of WBV and PC as a means of augmenting acute sprint performance. However, a trend within the 30-Hz protocol may suggest that WBV as part of a warm-up for sprinting activities greater than 40 m (i.e., 100 m) could potentially result in a decreased sprint time of nearly 1/10th of a second, which is worth future consideration.
先前的研究表明，特定的预处理活动，如全身振动（WBV）和抗阻训练，可能在随后的动态活动中发挥重要作用。本研究的目的是检验两种预处理活动，即WBV和高翻（PC）对急性短跑成绩的影响。进行了两项研究，其中14名（WBV组）和9名（PC组）男性田径运动员作为受试者。WBV治疗包括在振动平台上以0、30、40或50Hz进行4组5秒的高抬腿跑。PC治疗包括以90%的1RM进行3次PC重复动作。在这两种情况下，急性短跑成绩都是感兴趣的因变量。对于WBV组，记录了10米、20米和40米处的分段时间。对于PC组研究，记录了反应时间（RXN）以及5米、10米和40米处的分段时间。结果表明，两项研究中治疗组和非治疗组之间均无显著差异。然而，RXN与5米分段时间（r = 0.65）和RXN与10米分段时间（r = 0.63）之间存在显著相关性，尽管它们随着短跑距离的增加而降低，在40米处降至r = 0.43。这些结果表明，将WBV和PC作为提高急性短跑成绩的手段效果甚微。然而，30Hz方案中的一种趋势可能表明，WBV作为超过40米（即100米）短跑活动热身的一部分，可能会使短跑时间减少近十分之一秒，这值得未来考虑。
