
Writing a critical review: Structure
An example:
The results of the studies reviewed suggest that exercise can have beneficial effects on alleviating anxiety symptoms. The vast majority of studies reviewed employed robust research designs, with seven studies using RCTs. Given the power of RCTs for identifying causal effects, the evidence for the beneficial effects of exercise on anxiety can be considered strong. However, several limitations should be noted. Firstly, some studies have been hampered by weak anxiety measures and high attrition rates. Secondly, as some studies have failed to consider follow-ups, the sustainability of the effects of exercise on anxiety is not fully understood. Finally, the lack of qualitative studies prevents an understanding of the mechanisms that explain how exercise reduces patients’ experiences of anxiety.