Abstract

Purpose: Following mild traumatic brain injury (mTBI), patients are often advised to restrict physical activity until full symptom resolution followed by gradual return to activity. However, extended rest periods may prolong recovery and contribute to persistent symptoms. Emerging evidence suggests early active rehabilitation that increases heart rate without exacerbating symptoms may improve mTBI patient recovery. This review aims to: (1) appraise evidence on active rehabilitation intervention for mTBI recovery within one-month of injury (i.e., exercise type, duration, intensity, etc.); and (2) recommend evidence-based rehabilitation protocols. Method: Pubmed, CINAHL, PsychARTICLES, SportDISCUS, and AMED databases were searched using key terms “mild Traumatic Brain Injury”, “Rehabilitation”, “Acute”, and their synonyms. Evidence was appraised using Cochrane RoB-2 and ROBINS-I. Results: 434 citations were initially identified with seven papers systematically reviewed. Within the reviewed articles, only three were randomized controlled trials with low risk of bias, and four were non-randomized trials with low to moderate risk of bias. Findings highlighted that a range of active rehabilitation protocols were used with different exercise modalities (primarily treadmills and static cycling), durations (9–20 min, or until symptomatic, for 30–50 days or symptoms resolved), and intensities (low, moderate or high). Active rehabilitation did not cause any serious adverse events (i.e., death, hospitalisation etc.), and six studies reported that it did not exacerbate mTBI symptoms in any participants (with one participant having symptom worsening in one study). Overall, the majority of reviewed studies ( n = 4) showed that active rehabilitation decreased time to mTBI symptom resolution compared to controls (strict rest/stretching exercises). Conclusions: Individualized active rehabilitation prescribed within one-month post-mTBI appears to be safe and effective at decreasing recovery time to symptom resolution in mTBI. However, there is a lack of consensus regarding specific intervention protocols that needs to be addressed before adoption within clinical practice.

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