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The effects of a loaded rucksack and weighted vest on metabolic cost and stride frequency in female adults

机译：装满背囊和加重背心对成年女性代谢成本和步幅的影响

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摘要

This study evaluated the metabolic cost and stride frequency during exercise while wearing an evenly distributed weight vest in recreationally fit women. Nine healthy women performed a modified Balke treadmill test until volitional fatigue in one of three conditions; (1) unloaded (2) rucksack and (3) weighted vest. Wearing a weighted vest did not show improvement of V?(O2peak), HRpeak, peak stride frequency or average stride frequency (all p >= 0.05). However, total time of exercise was significantly longer in the evenly distributed weight vest condition compared to the rucksack condition (p = 0.024) despite similar V?(O2peak) and HRpeak. These results may provide practical information when females in tactical populations are preparing for missions in which heavy loads must be carried. Practitioner summary: This study compared the effects of load carriage mode on metabolic cost and stride frequency during graded exercise in females. The weighted vest showed significantly longer exercise time despite similar V?(O2peak) and HRpeak. Development of standardised weight distribution mode may serve as an advantageous strategy for females in tactical settings.
机译：这项研究评估了运动休闲的女性穿着均匀分布的重量背心时运动期间的代谢成本和步幅。九名健康女性进行了改良的Balke跑步机测试，直到在以下三种情况之一中出现自愿性疲劳为止。 （1）卸下（2）背包和（3）配重背心。穿着加重背心并未显示V？（O2peak），HRpeak，峰值步幅频率或平均步幅频率的改善（所有p> = 0.05）。但是，尽管背心的V2（O2peak）和HRpeak相似，但在平均分配的背心状态下的总运动时间却比背囊状态下的运动时间（p = 0.024）长得多。当战术人群中的女性准备执行必须承担沉重任务的任务时，这些结果可能提供实用信息。从业者摘要：这项研究比较了负荷运动方式对女性分级运动过程中代谢成本和步幅频率的影响。尽管V？（O2peak）和HRpeak相似，但加重背心的运动时间却明显更长。标准化体重分配模式的发展可以作为战术环境中女性的一项有利策略。

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  • 来源
    《Ergonomics》 |2020年第2期|145-151|共7页
  • 作者

  • 作者单位

    Indiana Univ Penn Dept Kinesiol Hlth & Sport Sci Indiana PA USA;

    Kent State Univ Dept Exercise Physiol Environm Physiol Lab Kent OH 44242 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Metabolic cost; stride frequency; load carriage; women;

    机译：代谢成本;步幅频率装载车;女人;

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