A Simple Assessment of Aerobic Fitness in Field Conditions

評核有氧適能的簡易方法

Abstract

LANGUAGE NOTE | Document text in English; abstract also in Chinese.

The conventionally accepted physiological criterion of aerobic fitness (AF) is V0_2max. When V0_2max is not directly measured, it can be estimated from performance motor tests. The using of motor tests for indirect determination of V0_2max is based on dependence between the energy cost of exercise and exercise intensity. In submaximal range of intensities the linear equations may be used to relate intensity of physical activity to V0₂. If we extrapolate linear relationships between V0₂ and exercise intensity to maximal exercise intensity, the inaccuracy of V0_2max determination resulting from the intensity of exercise increases by approximately 5%. The purpose of this study was to determine norms for the estimation of AF with regard to Czech standards and with regard to general relations between the mean velocity of the cyclical movement in a field conditions and an energy required for this activity. These norms were derived from a Czech sample, incorporating relations between speed of movement and energy required for this activity expressed indirectly by V0₂. The basic element of evaluating AF under field conditions is the mean velocity of walking or running on a 2000 m track, and/or cycling on a 5000 m distance, and/or swimming on a 300 m distance. The standards have been prepared for males and females aged 6-70 years, making it possible to estimate "poor", "good", and "excellent" levels of AF and physical performance. The error of assessment of V0_2max and thus AF level varies by about 15%.

一般評估帶氧運動能力的方法，都是採用慣常的量度「最大攝氧量」。本文旨在探討可否使用較簡易而有效的評估辦法去取代複雜的傳統方法，利用捷克地區的數據來作測試，結果發現：簡易方法準確度互差約15%。