Hormonal
Performing resistance training in the late afternoon/evening yields greater muscle hypertrophy compared to morning training in young, intermediate chronotype males.
If your goal is maximum muscle growth and you are a young adult with a normal schedule, try to schedule your weightlifting sessions for the late afternoon or early evening (e.g., 4 PM - 8 PM). This timing aligns with higher BMAL1 gene expression and body temperature, potentially optimizing muscle synthesis compared to morning sessions.
朝と夕方のどちらの筋力トレーニングが筋肥大に効果的かを検討した結果では．夕方の筋力トレーニングが効果的であるとの報告されている
Why this rating
Based on a cited study (Ref 13) involving young men; the paper notes results may not apply to older adults or extreme chronotypes.
Source
Circadian rhythms and exercise/physical activity
Masaki Takahashi et al. · Japanese Journal of Physical Fitness and Sports Medicine · 2020
DOI 10.7600/jspfsm.69.351
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- Performing resistance training in the morning improves morning performance, while evening training improves evening performance, allowing athletes to optimize for competition times.Moderate
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