Research
Hormonal
Acute growth hormone (GH) response to resistance exercise increases in older women after 21 weeks of strength training, while basal hormone levels remain unchanged.
You don't need to worry about low basal hormones; your body's acute response to exercise can improve with training. Consistent resistance training is the key lever.
GoodSupportsHIGH confidence
An acute increase of GH (P < 0.05), remaining elevated up to 30 min (P < 0.05) postloading, was observed only at posttraining.
Why this rating
Clear pre/post comparison of acute hormonal response.
Source
Selective muscle hypertrophy, changes in EMG and force, and serum hormones during strength training in older women
Keijo Häkkinen et al. · Journal of Applied Physiology · 2001
DOI 10.1152/jappl.2001.91.2.569
rct · n=10Cited 368×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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