In this instructional video, fitness instructor Rodrigo Barros explains that rest intervals between sets should be tailored to the specific exercise and load rather than using a fixed timer. He notes that lighter isolation movements like leg extensions or flexors may be adequately recovered with about one minute of rest, but heavy compound lifts such as deep squats or heavy leg press require longer recovery to maintain performance and promote hypertrophy. Barros advocates a self‑suggested (autoregulated) rest approach: after completing a set, the trainee watches their breathing, heart rate, and perceived fatigue, waiting until these indicators return toward baseline before starting the next set. He emphasizes listening to one’s own body, asking oneself if they feel ready, and proceeding only when feeling “good enough.” This method is presented as scientifically validated as the optimal rest strategy for muscle growth.
