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Biomedical subjects

A Yasukouchi

Publications and source records attributed to A Yasukouchi.

28 records · Page 2Linked to original sources
PubMed1980

Prediction of maximal oxygen intake over a wide range of air temperature conditions.

The correction of air temperature effect and the amendment of underestimation are two difficult problems for accomplishment of prediction of maximal oxygen intake from a simple submaximal test. The purpose of this study was to develop the prediction equation applicable over a wide range of air temperature conditions with no tendency of underestimation. Submaximal data were obtained from short exposure experiments to 20 degrees C, 30 degrees C and 40 degrees C of air temperature in a climatic chamber. The most valid prediction equation for young adult females was developed as VO2 max =[95.182VO2/(0.763Ve-1.092Wt-1.542Yr+16.82VO2+0.361OR+0.110Ht+63.655)]+0.126, and the one for young adult males was determined as V02 max =[87.919VO2/(0.484Ve-0.583Wt-1.354Yr+0.295OR+12.15VO2-0.110Ht+81.009)]+0.434 using the oxygen intake (VO2), pulmonary ventilation (Ve), ratio of oxygen removal (OR) during submaximal test work and body weight (Wt), stature (Ht) and age (Yr) of subjects.

Adolescent↗
PubMed1979

The lower and upper critical temperatures in male Japanese.

Critical temperatures were determined by a new estimating system called the polynomial equation method. Its consists of polynomial regression equations of metabolic rate on ambient and body temperatures and conversion equations enable to convert metabolic rate value into temperature value. Nine young adult males were tested using the system. Metabolic rate was calculated indirectly with a reference to protein metabolism and the critical temperatures were determined as follows; the lower critical air temperature to be 26.2 C, the upper critical air temperature to be 47.0 degrees C, the lower and upper mean skin temperature to be 29.2 degrees C and 36.5 degrees C, and the lower and upper critical rectal temperature to be 35.5 degrees C and 37.9 degrees C, respectively. The polynomial equation method has an advantage over the intersect method since it allows estimation of several kinds of critical temperature.

Adult↗