School of Physical Education, Sport, and Exercise Science, Ball State University, Muncie, Indiana, USA.
J Strength Cond Res. 2010 Jul;24(7):1804-9. doi: 10.1519/JSC.0b013e3181e06e27.
The purpose of the investigation was to determine the acute effects of heavy implements on weight throw performance. Ten high-school weight throwers were recruited to participate. A within-subjects design was used to compare the difference between mean and peak distances achieved with the regulation weight after warm-up with regulation weight (control), 1.37-kg overweight (OVRWGHT1) and 2.27-kg overweight implement (OVRWGHT2). Analysis via repeated-measures analysis of variance revealed main effects for Treatment (p = 0.021) and Attempt (p = 0.015). The mean after the OVRWGHT1 treatment was the highest (14.52 +/- 3.54 m) followed by OVRWGHT2 (14.22 +/- 3.15 m) and the competition weight implement (STAND; 13.38 +/- 2.98). Paired samples t-test for peak distance by treatment revealed that both OVRWGHT1 (p = 0.004) and OVRWGHT2 (p = 0.027) were significantly different from STAND. Post hoc testing revealed that both OVRWGHT1 (p = 0.025) and OVRWGHT2 (p = 0.007) resulted in a significant difference in perceived fatigue compared with STAND. The results suggest that using overweight implements as part of the warm-up may improve performance in high-school athletes.
研究目的是确定重物对铅球投掷成绩的急性影响。招募了 10 名高中生参加。采用单因素被试内设计，比较热身时使用规定重量（对照组）、1.37 公斤超重（OVRWGHT1）和 2.27 公斤超重器材（OVRWGHT2）后平均和最大距离的差异。重复测量方差分析显示处理（p=0.021）和尝试（p=0.015）有主效应。OVRWGHT1 处理后的平均值最高（14.52±3.54 米），其次是 OVRWGHT2（14.22±3.15 米）和比赛重量器材（STAND；13.38±2.98 米）。按处理的最大距离配对样本 t 检验显示，OVRWGHT1（p=0.004）和 OVRWGHT2（p=0.027）均与 STAND 有显著差异。事后检验显示，OVRWGHT1（p=0.025）和 OVRWGHT2（p=0.007）与 STAND 相比，疲劳感明显不同。结果表明，在热身时使用超重器材可能会提高高中生运动员的成绩。
