We thought that YES there was a clear question.
- The population is any adults (or young, fit, healthy adults)
- The intervention and comparator are stretching before exercise (but is this mainly about lab-based stretches before lab-induced muscle pain rather than real life stretching before playing football etc)
- The "primary" outcome is muscle soreness
- Other outcomes are incidence of injury, athletic performance (but do they really include athletic performance)
Notes: The review addresses a very broad question, therefore should be regarded as an exploratory review. Given this, a great deal of heterogeneity between included studies is to be expected therefore there should be a clear plan to investigate this. This does not appear to have been done. Also, it is implausible to draw firm conclusions from such a review. Fuller analysis and results are available in the Cochrane Review.