http://bjsm.bmj.com/content/51/11/A83.2?rss=1
Abstract
Objective
To conduct a systematic review and meta-analysis evaluating the role of
exercise or rest in patients with concussion or mild traumatic brain
injury.
Design Systematic review and meta-analysis.
Data sources
Medline, PsychInfo, Scopus, Cochrane Controlled Trials Registers and
Sport Discus, till March 2016 and hand search of some articles.
Study selection
Randomised controlled trials (RCTS) and observational studies (OBS)
comparing the effect of exercise or rest in patients with concussion, on
different outcomes.
Participants Children and adults with concussion or mild traumatic brain injury.
Intervention Exercise or Rest.
Outcomes
Post concussive symptoms (PCCS), balance error scoring system (BESS),
immediate post concussion assessment and cognitive testing (ImPACT).
Main results
Our search generated 921 studies. Of these, 5 RCTs and 12 OBS met our
inclusion criteria. Methodological quality of most of the studies was
poor. Meta-analysis of 6 studies involving more than 556 patients showed
statistical significant decrease in PCCS with exercise compared to
control, Mean Difference (MD) [95% Confidence Interval (CI)], −14.6
[−17.8, −11.3], p<0.001. There was some clinical, but no statistical
heterogeneity among the studies (I2=32%). Exercise did not affect BESS,
neuropsychological scale and ImPACT score.
There was not effect of rest on total symptoms in patients with concussion and number of patients with symptoms.
Conclusion
Our systematic review and meta-analysis showed clear benefits of
exercise in PCCS. However, the evidence was based on poor quality
studies that vary in duration, frequency and intensity of exercise. A
good quality RCT needs to be conducted to evaluate a clear effect of
exercise and rest in patients with concussion.
Competing interests None.
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