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Warm-Up Striding Under Load Does Not Improve 5-Km Time Trial Performance in Collegiate Cross-Country Runners
Montenegrin Journal of Sports Science and Medicine ( IF 1.3 ) Pub Date : 2020-03-01 , DOI: 10.26773/mjssm.200310
Eric K. O'Neal , , Ryan T. Albino , Jonathan C. Swain , Dylan W. Sharp , Tara V. Boy , Lauren G. Killen , , , , ,

Post-activation potentiation has proven to be an effective strategy to enhance performance for many tasks, but little research has been conducted specifically concerning endurance sport performance. This study examined whether 5-km run performance could be improved by completing pre-run strides while wearing a 6.8 kg weighted compression garment (LOAD). A counter-balanced crossover field study design was incorporated with NCAA Division I Cross Country runners (n = 10) during coach-led, official team pre-season “speed day” practices. On Monday of Week 1, testing participants completed a course preview run and strategy session with their coach as they would do in preparation for a meet. The following two Mondays, participants completed the 5-km run as quickly as possible while blinded to pace. The team’s habitual warmup routine was used, which included a 3.22-km run followed by a series of dynamic warm-up movements before four, 80-m strides were completed with LOAD or without load (CON). Average wet-bulb globe temperature for both sessions was 22.3 °C. CON did not differ (p>0.05) from LOAD in split times for kilometres 0.00-1.61 (339±13 vs 341±13 s), 1.61-3.22 (312±15 vs 312±16 s), 3.22-4.83 (339±21 vs 338±22 s), or the 0.17 km distance kick at the end of the run (71±16 vs 69±14 s). Overall time was also not improved for LOAD (1060±49 s) versus CON (1062±55 s). The ~10% body mass LOAD warm-up strategy failed to improve early, mid-, or finishing kick performance in a 5-km time-trial with well-trained runners.

中文翻译:

在有负荷的情况下进行热身大步并不能提高大学越野跑者的5公里计时赛性能

激活后增强被证明是提高许多任务表现的有效策略,但是很少有专门针对耐力运动表现的研究。这项研究研究了穿着6.8公斤重的压缩衣物(LOAD)时,通过完成跑步前的步幅是否可以改善5公里的跑步性能。在教练指导下的官方团队季前“速度日”练习期间,将平衡平衡的跨界野外研究设计与NCAA第一分区越野跑者并入。在第1周的星期一,应试者与他们的教练一起完成了课前预习和策略会议,就像他们准备开会一样。在接下来的两个星期一,参与者在不了解步速的情况下尽快完成了5公里的跑步。使用了团队的惯常热身程序,包括3.22公里的跑步,然后进行一系列动态的热身运动,然后在有负载或无负载(CON)的情况下完成了四个长达80米的步幅。两个时段的平均湿球温度为22.3°C。CON的分时时间与LOAD的差异无差异(p> 0.05),千米为0.00-1.61(339±13 vs 341±13 s),1.61-3.22(312±15 vs 312±16 s),3.22-4.83(339± 21 vs 338±22 s),或者在跑步结束时以0.17 km的距离踢(71±16 vs 69±14 s)。与CON(1062±55 s)相比,LOAD(1060±49 s)的总时间也没有改善。在训练有素的跑步者进行的5公里计时赛中,约10%的体重LOAD热身策略未能改善早期,中期或终点踢的表现。两个时段的平均湿球温度为22.3°C。CON在公里的分割时间中与LOAD的差异没有(p> 0.05)(0.00-1.61(339±13 vs 341±13 s),1.61-3.22(312±15 vs 312±16 s),3.22-4.83(339± 21 vs 338±22 s),或者在跑步结束时以0.17 km的距离踢(71±16 vs 69±14 s)。与CON(1062±55 s)相比,LOAD(1060±49 s)的总时间也没有改善。在训练有素的跑步者进行的5公里计时赛中,约10%的体重LOAD热身策略未能改善早期,中期或终点踢的表现。两个时段的平均湿球温度为22.3°C。CON的分时时间与LOAD的差异无差异(p> 0.05),千米为0.00-1.61(339±13 vs 341±13 s),1.61-3.22(312±15 vs 312±16 s),3.22-4.83(339± 21 vs 338±22 s),或者在跑步结束时以0.17 km的距离踢(71±16 vs 69±14 s)。与CON(1062±55 s)相比,LOAD(1060±49 s)的总时间也没有改善。在训练有素的跑步者进行的5公里计时赛中,约10%的体重LOAD热身策略未能改善早期,中期或终点踢的表现。与CON(1062±55 s)相比,LOAD(1060±49 s)的总时间也没有改善。在训练有素的跑步者进行的5公里计时赛中,约10%的体重LOAD热身策略未能改善早期,中期或终点踢的表现。与CON(1062±55 s)相比,LOAD(1060±49 s)的总时间也没有改善。在训练有素的跑步者进行的5公里计时赛中,约10%的体重LOAD热身策略未能改善早期,中期或终点踢的表现。
更新日期:2020-03-01
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