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首页> 外文期刊>Gait & posture >Dynamometric analysis of the maximum force applied in aquatic human gait at 1.3m of immersion.
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Dynamometric analysis of the maximum force applied in aquatic human gait at 1.3m of immersion.

机译：人体在1.3m浸入水中步态施加的最大力的测力分析。

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BACKGROUND: This work had the objective to analyze the values of the vertical and anteroposterior components of the ground reaction force (GRF) during the aquatic gait and the influence of the speed and the upper limb position on the GRF components values. METHODS: Sixty subjects, with average height between 1.6 and 1.85m and average age of 23 years, were divided in three groups according to the immersion level. The citizens walked over a walking platform, which had two force plates attached. The platform was located at a depth of 1.3m. The subjects walked over the platform in four different situations, with speed and upper limb position variations. For data analysis, descriptive and inferential statistics were used. FINDINGS: For the vertical component, the force values varied between 20% and 40% of the subjects' body weight according to the different data collection situations. For the anteroposterior component, the force values reached between 8% and 20% of the subjects' body weight corporal, also according with the data collection situation. INTERPRETATION (DISCUSSION): It was noted that for a given immersion level, the forces can vary according to the request that is imposed to the aquatic gait. It was concluded that either the speed as well as the position of the upper limb influence the values of the GRF components. An increase in the gait speed causes increase of the anteroposterior component (Fx), while an increase in the corporal mass out of the water causes increase mainly of the vertical component (Fy). Knowing the value of these alterations is important for the professional who prescribes activities in aquatic environment.
机译：背景：这项工作的目的是分析水上步态时地面反作用力（GRF）的垂直分量和前后分量以及速度和上肢位置对GRF分量值的影响。方法：将60名平均身高在1.6至1.85m之间，平均年龄为23岁的受试者根据沉浸程度分为三组。市民们在一个行走平台上行走，该平台上装有两个测力板。该平台位于1.3m的深度。受试者在四种不同情况下走过平台，速度和上肢位置有所不同。对于数据分析，使用描述性和推断性统计。结果：对于垂直分量，力值根据不同的数据收集情况在受试者体重的20％至40％之间变化。对于前后分量，根据数据收集情况，力值也达到受试者体重的8％至20％。解释（讨论）：注意到对于给定的浸入水平，作用力可以根据对水上步态施加的要求而变化。结论是，上肢的速度和位置都会影响GRF组件的值。步态速度的增加导致前后分量（Fx）的增加，而水体质量的增加主要导致垂直分量（Fy）的增加。知道这些改变的价值对于规定水生环境活动的专业人员很重要。

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