Standards and predicted values of anaerobic threshold.

Mean values for body size, body composition and endurance indices have been obtained from a homogeneous group of 125 physically active men to find predicted values of AT (age 23.4 +/- 4.3 years; height 175.9 +/- 6.5 cm; weight 72.2 +/- 8.9 kg; body fat 17.9 +/- 4.7% body weight, muscularity index 19.0 +/- 1.5 kg fat-free mass/cm2 X 10(-4) height; forced vital lung capacity 5667 +/- 815 cm3; VO2max 48.5 +/- 6.0 cm3 X kg-1 X min-1; anaerobic threshold 61.0 +/- 7.8% VO2max). Endurance performance and fitness indices were a little higher than average, but about 10% lower than in endurance-trained athletes. The authors suggest that standards of anaerobic threshold (AT) for ergonomics and endurance training should be about 55-65% VO2max, but not lower than 1800 cm3 O2 X min-1. The coefficients of correlation of AT relating to VO2max, PFO2 and submaximal load were significant at the 0.01 level. Using regression analysis, predicted values of AT were developed. A predicted value of AT can be obtained from the regression line of AT on Lsubmax used as a nomogram, during a simple PWC170 exercise test without blood or gas analysis.

Spirometric predicted values for teenage boys: relation to body composition and exercise performance.

Forced expiratory volume and vital capacity of 428 healthy adolescent boys have been related to the age, body size, body composition, athletic prowess and maximal oxygen uptake. After allowing for age and height the lung function is related to the fat free mass and index of muscularity (fat free mass/height 2) but not to the other indices. This finding contributes to the derivation of reference values and to understanding the factors which promote the development of the lungs during adolescence.

[Physical fitness of students of various vocational schools]. / Wydolnosc fizyczna uczniów niektórych szkol zawodowych.

Average values of various anthropometric and physiologic indices have been obtained for a representative group of 485 pupils of vocational schools, aged 14-18. The mean values of height (almost 175 cm), weight (66 kg) and Vo2 max (3.25 lo2/min or 48.3 ml/kg x min. or 59.2 ml/kg FFB/min.) were somewhat higher than average product in terms of physical fitness. According to estimates for ergonomics, these investigations confirmed that Polish Anthropometric Standards could be applied to set up new workplaces using upper limits of these standards. The optimum level of average workload in the case of new workers is somewhat above 5.0 kcal/min. During pre-employment and periodical medical examinations of juveniles we can use Vitalograph spirometer because predicted values of VFC and FEV1.0 for this spirometer have been calculated.