The Boom Boom Performance Podcast

Concurrent training may compromise strength, power, and/or hypertrophic adaptations, which is commonly referred to as the interference effect. Some results indicated that there might be a decrease in adaptation to resistance training when it is combined with an aerobic training program. It seems that resistance training enhances aerobic training, but not vice versa (Hickson 1980; Hakkinen et al., 1993; Kraemer et al., 2005). The first meta-analysis on concurrent training in 2012 found that concurrent training limited (by about ~20%) the amount of strength, power, and hypertrophy that could occur compared to strength training alone. A few years later some different scientists looked at a very similar data set, and what they found was that when you compared concurrent to strength training, the farther you separated the endurance component from the strength component, the better. There’s actually a nice dose-response up to about 24 hours of separation between training types. Endurance exercise primarily increase