Edith Cowan University research revealed that muscle strength benefits are seen with consistent, short exercise sessions. Participants performing a three-second eccentric bicep contraction thrice weekly saw strength improvements. Daily 20-minute exercises might be more beneficial than a single 2-hour weekly session. Regularity, even in short durations, is key to health benefits.
Reference: Yoshida et al. “Weekly minimum frequency of one maximal eccentric contraction to increase muscle strength of the elbow flexors”, European Journal of Applied Physiology, 28 July 2023.https://doi.org/10.1007/s00421-023-05300-6