Broglio Steven P., Ju Yan-Ying, Broglio Michael D., Sell Timothy C.
University of Pittsburgh, Pittsburgh, PA.
J Athl Train. 2003 Sep;38(3):220-224.
The potential for risks associated with chronic soccer heading has led some soccer leagues to mandate the use of soccer headgear. Although manufacturers have designed and promoted these headbands to decrease the forces associated with heading a soccer ball, their efficacy has not been tested. Therefore, we investigated the efficacy of 3 brands of soccer headgear: Headers, Headblast, and Protector, as compared with a non-headband condition. DESIGN AND SETTING: A force platform was mounted vertically with each headband attached with a length of hook-and-loop tape. A JUGS Soccer Machine projected balls at the platform and headband at 56.45 kph (35 mph). MEASUREMENTS: We measured vertical ground reaction force for 50 trials of each condition and calculated peak force, time to peak force, and impulse. RESULTS: We found a significant reduction in peak force of impact with all 3 headbands. The Protector headband also showed the greatest decrease in time to peak force and impulse, whereas the Headers headband showed a significant increase in impulse. CONCLUSIONS: All 3 headbands were effective at reducing the peak impact force. The Protector headband appeared the most effective at reducing time to peak force and impulse within the design of this study. The clinical effectiveness of these products remains to be seen.
与长期用头顶足球相关的潜在风险促使一些足球联赛强制要求使用足球头盔。尽管制造商已设计并推广这些头带,以减少与用头顶足球相关的力量,但它们的功效尚未经过测试。因此,我们研究了3种品牌的足球头盔(Headers、Headblast和Protector)与不带头带情况相比的功效。
一个测力平台垂直安装,每个头带用一段魔术贴胶带固定。一台JUGS足球发球机以56.45公里/小时(35英里/小时)的速度向平台和头带发射足球。
我们在每种情况下进行50次试验,测量垂直地面反作用力,并计算峰值力、达到峰值力的时间和冲量。
我们发现,使用所有3种头带时,撞击的峰值力都显著降低。Protector头带在达到峰值力的时间和冲量方面也显示出最大降幅,而Headers头带的冲量则显著增加。
所有3种头带在降低峰值冲击力方面均有效。在本研究的设计中,Protector头带在减少达到峰值力的时间和冲量方面似乎最有效。这些产品的临床效果还有待观察。