Table 1. Characteristics of the subjects. Data are means (±SD).
Phase 1 Males
(n=16)
Females
(n=15)
  Age (yr) 22.2 (2.2) 21.8 (2.5)
  Height (m) 1.83 (.05) 163 (6)
  Body Mass (kg) 81.9 (11.0) 61.8 (8.0)
  Vmax (m.s-1) 4.6 (.6) 3.9 (.5)
  HRmax (bpm) 187 (10) 190 (4)
  VO2max (ml·min-1.kg-1) 59.3 (8.0) 50.6 (4.4)
Phase 2 Males
(n=10)
Females
(n=10)
  Age (yr) 21.8 (2.6) 21.9 (1.8)
  Height (m) 1.78 (.06) 1.68 (.06)
  Body Mass (kg) 75.7 (10.1) 61.0 (5.3)
  Vmax(m.s-1) 4.6 (.5) 4.0 (.6)
  HRmax (bpm) 189 (8) 191 (5)