Hormonal
Acute resistance exercise-induced elevations in endogenous anabolic hormones (testosterone, GH, IGF-1) do not enhance training-induced muscle hypertrophy or strength gains.
You do not need to perform high-volume, short-rest resistance training specifically to 'spike' your testosterone or growth hormone to build muscle. Standard resistance training protocols that focus on mechanical tension and progressive overload are sufficient for hypertrophy and strength gains, regardless of the acute hormonal response. Do not sacrifice recovery or technique in pursuit of a 'pump' or hormonal spike.
We conclude that exposure of loaded muscle to acute exercise-induced elevations in endogenous anabolic hormones enhances neither muscle hypertrophy nor strength with resistance training in young men.
Why this rating
Randomized, within-subject, controlled trial with 15 weeks duration and multiple outcome measures (MRI, biopsy, strength).
Source
Elevations in ostensibly anabolic hormones with resistance exercise enhance neither training-induced muscle hypertrophy nor strength of the elbow flexors
Daniel W. D. West et al. · Journal of Applied Physiology · 2009
DOI 10.1152/japplphysiol.01147.2009
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