The Claim
In resistance-trained men, performing 8 weeks of supervised resistance training four times per week with randomly varied exercises and repetition ranges via a mobile app may enhance intrinsic motivation to train with a moderate effect size (Cohen’s d = 0.58), while achieving similar improvements in lower-body muscle thickness and maximal strength compared to a fixed exercise routine.
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.
If gym guys use an app to switch up their workouts every time, they might enjoy training more — without losing gains in leg strength or muscle size.
See the scientific wording
In resistance-trained men performing 8 weeks of supervised resistance training 4 times per week, randomly varying exercises and repetition ranges using a mobile app may enhance intrinsic motivation to train, with a moderate effect size (Cohen’s d = 0.58), while maintaining similar improvements in lower-body muscle thickness and maximal strength compared to a fixed exercise routine.
What the research says
1 studyThe study found that switching up exercises using an app helped people feel more motivated to work out, just like the claim says, and they still gained strength just as much as those doing the same routine.
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.