Recent research shows that adopting a weightlifting methodology of lifting heavy weights to build muscle is not the best way. Smaller weights lifted in greater numbers do better for muscle mass gain than large weights.
Lifting heavy weights isn’t the only way to gain muscle mass, according to the results of a study conducted by McMaster University. It shows that working the muscles by lifting light weights many times is just as effective as lifting heavy weights less repeatedly.
From small weights to exhaustion
In this study, two groups of experienced male weightlifters followed a 12-week whole-body protocol. One group lifted lighter weights (≥50% of maximal strength) at a rate of 20-25 reps per set, while the other group lifted heavier weights (≥90% of maximal strength) at a rate of 20-25 reps per set. reason for 8 to 12 repetitions.
Both groups lifted the weights until they reached their breaking point. The study authors observed that muscle gain and muscle fiber size were virtually the same in both groups. They also found that it’s not really the heaviness of the weight lifted that counts, but the fact of continuing the effort until exhaustion.
This should reconcile amateur athletes with the practice of bodybuilding!
Morton RW et al.Neither load nor systemic hormones determine resistance training-mediated hypertrophy or strength gains in resistance-trained young men J Appl Physiol. 121: 129-138.