Mixed
Lower load resistance training (loads < 50% 1RM) induces similar or superior muscle hypertrophy and strength adaptations compared to traditional higher load training (loads > 70% 1RM), provided the lower load sets are performed in close proximity to concentric failure.
To build muscle and strength without heavy weights, use loads between 30-50% of your one-rep max. Perform 2-3 sets of 3-4 exercises, 2-3 times a week. The key is effort: you must perform reps until you can barely complete another one (concentric failure) or are within 3-5 reps of that point. This approach is as effective as heavy lifting for most people and is easier on your joints.
A growing body of evidence suggests that when lower load resistance training [i.e., loads < 50% of one-repetition maximum (1RM)] is completed within close proximity to concentric failure, it can serve as an effective alternative to traditional higher load (i.e., loads > 70% of 1RM) training and in many cases can promote similar or even superior physiological adaptations.
Why this rating
Based on a review of multiple studies and meta-analyses cited in the text, though some cellular signaling differences remain equivocal.
Source
Physiological Responses and Adaptations to Lower Load Resistance Training: Implications for Health and Performance
Jonathon Weakley et al. · Sports Medicine - Open · 2023
DOI 10.1186/s40798-023-00578-4
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