Self-tutoring about health: the tutor pursues the idea of how many calories a person might burn per minute, at rest.
The rest calorie burn rate is approximately 1.2 per minute for a person of mass 70kg.
Back in my post from August 16, 2017, I reported 80 to 100 Watts as the power needed to stay alive. Taking 90W as the average, it leads to 1.3cal/minute.
When discussing fitness, the calories mentioned are nutritionist calories. In physics, 1 nutritionist’s calorie=1kcal.
Source:Oracle Tutoring by Jack and Diane, Campbell River, BC.