Early Mobilization After Stroke: Finding the Sweet Spot on Timing and Intensity

For years, the mantra in stroke rehabilitation has been “the earlier, the better.” We’ve all been taught that getting patients moving as soon as possible after a stroke can help prevent complications like deep vein thrombosis, pneumonia, and muscle atrophy. This led to a push for aggressive, early mobilization protocols in acute stroke units. However, the results of the AVERT (A Very Early Rehabilitation Trial) trial, a large-scale randomized controlled study, forced us to reconsider this approach. The AVERT trial, published in 2015, randomized over 2,100 stroke patients to receive either very early and intensive mobilization (starting within 24 hours) or standard care. The results were surprising: the group that received the intensive, very early mobilization had a *worse* functional outcome at 3 months compared to the standard care group. This landmark study sent a shockwave through the neurorehabilitation community and led to a more cautious approach to early mobilization. However, the story doesn't end there. A subsequent pre-specified dose-response analysis of the AVERT data, published in 2016, provided a more nuanced picture. It found that while very high doses of mobilization were associated with poorer outcomes, shorter, more frequent sessions of out-of-bed activity were associated with a greater likelihood of a good outcome. This suggests that it’s not just about *when* you start, but also about *how much* you do. More recent evidence has helped to clarify the optimal timing and intensity of early mobilization. A 2021 systematic review concluded that the optimal time to start early mobilization is after 24 hours of stroke onset, once the patient is hemodynamically stable. This is echoed in the 2026 Swiss recommendations for early mobilization, which suggest starting out-of-bed mobilization within the first 24 hours, but avoiding physically intensive therapy during this early phase. So, what does this mean for our clinical practice? Here’s a breakdown of the key considerations: **Timing:** For most patients with acute ischemic stroke, it is reasonable to initiate out-of-bed mobilization between 24 and 48 hours after the event. For patients with large ischemic strokes or those who have received endovascular therapy, a more conservative approach may be warranted, with mobilization delayed until after 48 hours. In cases of hemorrhagic stroke, the timing of mobilization is more controversial and should be individualized based on the size and location of the hemorrhage, and in consultation with the neurosurgical team. **Intensity and Duration:** The evidence from the AVERT dose-response analysis suggests that shorter, more frequent mobilization sessions are preferable to longer, less frequent ones. A good starting point is 10-15 minutes of out-of-bed activity, 2-3 times per day. The intensity should be low to moderate, and should be guided by the patient’s tolerance. This could include sitting on the edge of the bed, standing, and taking a few steps with assistance. The goal is to gradually increase the duration and intensity of mobilization as the patient’s condition improves. **Safety and Contraindications:** Before initiating any mobilization, a thorough safety screen is essential. This should include an assessment of the patient’s level of consciousness, neurological status, and hemodynamic stability. Key contraindications to early mobilization include: * Hemodynamic instability (e.g., hypotension, uncontrolled hypertension, significant cardiac arrhythmias) * Active bleeding or high risk of bleeding * Unsecured cerebral aneurysm * Elevated intracranial pressure * Severe respiratory distress **Patient Selection:** The decision to initiate early mobilization should be made on a case-by-case basis, taking into account the patient’s stroke severity, comorbidities, and overall clinical condition. Patients with milder strokes and good physiological reserve are generally good candidates for early mobilization. In contrast, patients with severe strokes, multiple comorbidities, or poor physiological reserve may require a more delayed and cautious approach. In conclusion, the current evidence supports a “Goldilocks” approach to early mobilization after stroke: not too much, not too soon, but just right. By carefully considering the timing, intensity, and safety of mobilization, and by tailoring the approach to the individual patient, we can optimize functional recovery and minimize the risk of harm.