婴儿车跑步：不同推车方式下的能量和运动学变化。
Stroller running: Energetic and kinematic changes across pushing methods.
作者信息
Alcantara Ryan S, Wall-Scheffler Cara M
机构信息
Department of Biology, Seattle Pacific University, Seattle, Washington, United States of America.
Department of Anthropology, University of Washington, Seattle, Washington, United States of America.
出版信息
PLoS One. 2017 Jul 3;12(7):e0180575. doi: 10.1371/journal.pone.0180575. eCollection 2017.
OBJECTIVE
Running with a stroller provides an opportunity for parents to exercise near their child and counteract health declines experienced during early parenthood. Understanding biomechanical and physiological changes that occur when stroller running is needed to evaluate its health impact, yet the effects of stroller running have not been clearly presented. Here, three commonly used stroller pushing methods were investigated to detect potential changes in energetic cost and lower-limb kinematics.
METHODS
Sixteen individuals (M/F: 10/6) ran at self-selected speeds for 800m under three stroller conditions (2-Hands, 1-Hand, and Push/Chase) and an independent running control.
RESULTS
A significant decrease in speed (p = 0.001) and stride length (p<0.001) was observed between the control and stroller conditions, however no significant change in energetic cost (p = 0.080) or heart rate (p = 0.393) was observed. Additionally, pushing method had a significant effect on speed (p = 0.001) and stride length (p<0.001).
CONCLUSIONS
These findings suggest that pushing technique influences stroller running speed and kinematics. These findings suggest specific fitness effects may be achieved through the implementation of different pushing methods.
目的
推着婴儿车跑步为父母提供了一个在孩子身边锻炼的机会，有助于抵消初为人父母期间出现的健康下降问题。要评估其对健康的影响，需要了解推着婴儿车跑步时发生的生物力学和生理变化，但推着婴儿车跑步的影响尚未得到明确阐述。在此，研究了三种常用的推车方式，以检测能量消耗和下肢运动学的潜在变化。
方法
16名受试者（男/女：10/6）在三种婴儿车条件下（双手推、单手推和推/追）以及独立跑步对照组中，以自我选择的速度跑800米。
结果
在对照组和婴儿车条件之间观察到速度（p = 0.001）和步幅（p<0.001）显著下降，然而，在能量消耗（p = 0.080）或心率（p = 0.393）方面未观察到显著变化。此外，推车方式对速度（p = 0.001）和步幅（p<0.001）有显著影响。
结论
这些发现表明，推车技术会影响推着婴儿车跑步的速度和运动学。这些发现表明，通过实施不同的推车方式可能会产生特定的健身效果。
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