The Study
Resistance‐only and concurrent exercise induce similar myofibrillar protein synthesis rates and associated molecular responses in moderately active men before and after training
This study is like comparing three groups doing different exercises to see what happens in their muscles. It can show us patterns, like if certain exercises often go along with muscle changes, but it can't prove the exercises cause those changes because we don't know all the details about how the study was done.
Analysis score
Maximum 90 for a randomized controlled trial.
Where the score came from
Scientists looked at how different exercises affect muscle growth in active men.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 534 / 100
Quality score
Participants are randomly assigned to treatment or control groups, minimizing bias. The gold standard for testing whether an intervention causes an effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1This suggests combining cardio and strength training doesn't hurt muscle building in active men.
- 2Muscle growth was similar whether doing strength training alone or mixed with cardio, both at start and after 10 weeks.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
The FASEB Journal
Year
2023
Authors
M. Lee, N. Caruana, N. Saner, J. Kuang, Tanner Stokes, Jonathan C. Mcleod, Sara Y Oikawa, D. J. Bishop, Jonathan D Bartlett, S. Phillips
Related Content
Claims (4)
When you start lifting weights, your muscles build new protein faster in the first week than they do after 10 weeks, even if you keep training.
For men who exercise regularly, doing both weight training and intense cardio together doesn't slow down muscle building compared to just weight training alone, even after 10 weeks of working out.
After 10 weeks of working out, men who are already somewhat active don't build muscle as efficiently as before, and their bodies don't respond as strongly to exercise—this happens whether they're doing cardio or weight training.
After working out, the way muscles build protein is about the same whether you do strength training alone or mix it with cardio, but two specific muscle-related genes react differently depending on which exercise you do first.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.