Effects of Passive Heat Therapy on Oxygen Consumption and Cardiovascular Fitness in Adults

Subjects will undergo 10 hot water immersions of 40.5 degrees Celsius for approximately 45 minutes per session over 14 days. Subjects will be immersed up to the shoulder until rectal temperature reacher 38.5 degrees Celsius (approximately 15-20 minutes). Subjects will then remain in the water bath submerged at waist level to maintain between 38.5 to 39.0 degrees Celsius for another 30 minutes. Following hot water immersion, subjects will be monitored for 10 minutes, or until temperature falls below 38.5 degrees Celsius.