[The characteristics of the energy support for muscular activity in different somatotypes]. / Osobennosti énergeticheskogo obespecheniia myshechnoi deiatel'nosti u raznykh somatotipov.

62 healthy untrained males of different somatotypes were given a 30-minute bicycle ergometry [correction of veloergometric] load at the threshold of aerobic exchange. Subjects with a higher percentage of muscular tissue and decreased percentage of fat had their ventilation threshold at a minimal distance from the point of anaerobic transition as compared with the subjects with a more developed fat component. The latters revealed a more active utilisation of lipids whereas the subjects with developed muscles used the carbohydrates rather as the energy substrate.

[Ventilatory response to hypercapnic stimulation in subjects of various somatic conditions]. / Ventiliatornyi otvet na giperkapnicheskuiu stimuliatsiiu u lits razlichnogo somaticheskogo statusa.

Hypercapnic sensitivity was tested by rebreathing method in 30 healthy untrained non-obese men. The S coefficient (ventilatory sensitivity) dependence on the fat accumulation (kg and %) and on the muscle mass (%) was found during the factor, regression and correlation analyses. The dependence seems to be associated with the metabolism and energy supply of muscular activity in subjects of different bodily constitution.