Table 1.  Subject descriptive data. Data are means (± standard deviation).
 

Men (n = 10)

Women (n = 10)

Age (years)

19.9 (.5)

20.1 (.7)

Body mass (kg)

68.3 (2.5)

56.3 (1.8) *

Body height (m)

1.79 (.02)

1.64 (.01) *

Percent body fat

11.1 (1.1)

17.5 (1.6) *

VO2max (ml·kg·-1·min-1)

78.3 (4.0)

64.3 (2.4) *

Heart rate at ventilatory threshold (beats·min-1)

159 (2)

158 (3)

* indicates difference between males and females (p < 0.05). The ventilatory threshold for each subject was determined by noting the point where an abrupt increase in VE·VO2-1 occurred without a concomitant increase in VE·CO2-1 as a measure of the lactate threshold (Haverty et al., 1988) and the heart rate measured at this point was considered to be the heart rate at ventilatory threshold.