Research

Hormonal

Cluster set configurations (brief intraset rest) elicit similar myokine (IL-6 and IL-15) responses to traditional sets during resistance exercise, suggesting that cluster sets can promote similar metabolic and immunological adaptations (such as lean mass gains) while potentially offering greater power adaptations.

If you are struggling to complete heavy squats, try breaking your sets into smaller chunks (cluster sets) with short rests. This study shows you get the same muscle-building signals (myokines) as doing the full set, but it might help you lift more powerfully. It's a valid alternative to traditional sets.

ModerateSupportsMEDIUM confidence
Similar responses in IL-6 and IL-15 following CS and TS suggest that both protocols elicit comparable myokine-triggered anti-inflammatory effects.
Chris McGlory et al. · Journal of Applied Physiology · 2016

Why this rating

Small sample size (n=10), acute study design, and specific to resistance-trained men.

Source

Skeletal muscle and resistance exercise training; the role of protein synthesis in recovery and remodeling

Chris McGlory et al. · Journal of Applied Physiology · 2016

DOI 10.1152/japplphysiol.00613.2016

narrative_reviewCited 131×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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