Jopkiewicz A
Institute of Pedagogy, College of Education, Krakowska, Poland.
Stud Hum Ecol. 1992;10:295-303.
The purpose of the study was to determine the range of involution changes concerning some somatic traits and endurance fitness in men 18-55 years of age. The material consisted of 155 workers from different plants, all living in towns, who were examined twice at a 7-year interval. Six somatic traits were measured and analysed: body height, body weight, chest circumference, skin-fat fold thickness (scapula, shoulder, hip). Maximal oxygen uptake was measured indirectly by recording the pulse rate during submaximal effort. The results were evaluated statistically by calculating the mean, the standard deviation and the significance of arithmetical mean differences. First step regression equations were applied to evaluate involution changes in body height and VO2 max. It was found that: Individual changes in body height began approximately in the 39th year of age. Decline in body height in men increased with age. At about the 32nd year of life the maximal oxygen uptake significantly decreased in the examined men but the process does not tend to intensity with age. After 7 years VO2 max (1/m9n) index decreased 12% in the 31-40 year-olds and 9% in the 41-55 year-olds.
该研究的目的是确定18至55岁男性某些身体特征和耐力健康方面的 involution 变化范围。研究材料包括来自不同工厂的155名工人，他们都生活在城镇，每隔7年接受两次检查。测量并分析了六个身体特征：身高、体重、胸围、皮肤脂肪褶皱厚度（肩胛骨、肩部、臀部）。通过记录次最大努力期间的脉搏率间接测量最大摄氧量。通过计算平均值、标准差和算术平均差异的显著性对结果进行统计学评估。应用一阶回归方程来评估身高和最大摄氧量的 involution 变化。结果发现：个体身高变化大约始于39岁。男性身高下降随年龄增加。在大约32岁时，被检查男性的最大摄氧量显著下降，但该过程不会随着年龄增长而加剧。7年后，31至40岁人群的最大摄氧量（1/m9n）指数下降了12%，41至55岁人群下降了9%。
