The Claim
Integrating 20-second loaded stretches between resistance training sets over an 8-week period increases soleus muscle thickness by approximately 0.7 mm in young, untrained men compared to traditional passive rest intervals, likely due to increased time under tension.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Adding a short, weighted stretch between your workout sets can make your calf muscles grow bigger over two months. This happens because the stretch keeps the muscle working longer, which helps it build more size than just resting normally.
See the scientific wording
Performing a 20-second loaded stretch between sets of resistance training increases soleus muscle thickness by approximately 0.7 mm in young, untrained men over an 8-week period, indicating that integrating loaded stretches into calf exercises selectively targets the soleus muscle for greater hypertrophic adaptation compared to traditional passive rest intervals, likely due to increased time under tension.
What the research says
1 studyStudy: Loaded inter-set stretch may selectively enhance muscular adaptations of the plantar flexors
The study confirms that adding a 20-second stretch between calf exercises helps the soleus muscle grow by about 0.7 mm over 8 weeks, outperforming traditional rest periods. This targeted approach specifically benefits the soleus without significantly affecting the surrounding calf muscles.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.