What percentage of total energy expenditure does an individual's resting metabolic rate typically contribute?

Resting metabolic rate (RMR) represents the energy expended by an individual at rest to maintain basic bodily functions such as breathing, circulation, and cell production. Generally, it accounts for a significant portion of total energy expenditure, typically around 60 to 70%. This encompasses the metabolic requirements necessary to sustain vital physiological activities while the body is not engaged in physical activity.

The 60 to 70% range reflects how the body's maintenance processes consume energy even when not exercising, highlighting the importance of RMR in overall energy balance and nutrition planning for both weight management and athletic performance. Understanding this concept is essential for those involved in sports nutrition and coaching, as it underlines the foundational role of metabolism in energy expenditure and dietary needs.