Recently researchers turned weightlifting conventional wisdom on
its head. The researchers found that lifting less weight more times was just as
effective at building muscle when compared to training with heavier weights.
The research, which was published in the Journal of Applied Physiology challenged
the widely accepted idea that training with heavy weights at low repetitions
was the best way to increase muscle growth. Although lifting with heavier weights
does increase muscle growth and strength many people in the population,
including older adults, have joint problems that prevent them from training
with these heavy loads. With this new research we find that those subjects who
cannot safely lift heavy weights can still increase muscle growth and strength
with lower loads.
This study consisted of grouping participants into three different
programs. The first program consisted of one set at 80% of the maximal load. The second program had each participant lift three
sets at 80% of the maximum and the last group was required to lift three sets at
30% of the maximum load.
" After 10 weeks of training, three times per week, the
heavy and light groups that lifted three sets saw significant gains in muscle
volume – as measured by MRI – with no difference among the groups."1
So the next time that you go to the gym, if you have
musculoskeletal problems, remember that you can lift lighter weights and still
benefit with increased muscle mass and strength.
Ref: C. J. Mitchell, T. A. Churchward-Venne, D. D. W. West, N. A. Burd, L. Breen, S. K. Baker, S. M. Phillips. Resistance exercise load does not determine training-mediated hypertrophic gains in young men. Journal of Applied Physiology, 2012
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