Enjoy our evidence-based bite size segment with our CSO Natalie Adair Suazo. This week the topic is: Comparing the effect of concurrent resistance and endurance training with that of resistance training only on the development of maximal dynamic strength in three groups, untrained, moderately trained, and trained individuals.  Study: Development of Maximal Dynamic Strength During Concurrent Resistance and Endurance Training in Untrained, Moderately Trained, and Trained Individuals: A Systematic Review and Meta-analysis (2021) Results: The authors did find interference with concurrent training in lower body strength gains in trained but not untrained individuals, and it only appears to be an issue when the aerobic and resistance bouts are performed within a short interval of each other (< 20 min). So within the same training session, yes interference, but not when performed separately (> 2 hours). As mentioned, this is not the case for moderately trained or untrained individuals. In these populations, concurrent resistance and endurance training did not have a negative effect on lower-body strength development. Please include the full citation: 

  Petré, Henrik, et al. “Development of Maximal Dynamic Strength during Concurrent Resistance and Endurance Training in Untrained, Moderately Trained, and Trained Individuals: A Systematic Review and Meta-Analysis.” Sports Medicine, 22 Mar. 2021, 10.1007/s40279-021-01426-9.