To optimize weight loss (losing fat rather than muscle), it is necessary to combine strength training—which signals the body to preserve muscle mass—with cardio to increase energy expenditure and create a caloric deficit.

noli's read

This advice aligns firmly with the current scientific consensus in exercise physiology. Meta-analyses, notably those published in 'Obesity Reviews', confirm that the combination of resistance training and an energy deficit is the most effective strategy for preserving lean mass while promoting fat mass loss. The concept of a 'signal' to the body (via mechanical tension) for muscle retention is well-documented in literature on hypertrophy. The assertion that fitter individuals burn more calories at high intensity is also supported, as better cardiovascular conditioning allows for maintaining a higher work intensity over time. As for the idea that cardio 'increases' expenditure, it is physically indisputable. Finally, the observation regarding exhaustion and the deterioration of physical form well illustrates the metabolic and neural limits of prolonged exercise, a phenomenon recognized in studies on central and peripheral fatigue.

the sources

1. 1Lauersen JB et al. 2014
2. 2Morton RW, Murphy KT, McKellar SR, et al. 2018
3. 3Leidy HJ, Clifton PM, Astrup A, et al. 2015
4. 4Hall KD, Heymsfield SB, Kemnitz JW, et al. 2012
5. 5Rolls BJ 2009