High-intensity training in patients with lacunar stroke: A one-year follow-up
JOURNAL OF STROKE & CEREBROVASCULAR DISEASES(2023)
Abstract
Objectives: Physical inactivity is a major risk factor for stroke. It is a challenge for patients to initiate and adhere to regular exercise post-stroke. Early initiation of home-based high-intensity interval training (HIIT) may engage patients in physical activity, improve cardiorespiratory fitness, and reduce risk of recurrent stroke. Materials and Methods: Post-intervention follow-up of patients with lacunar stroke, randomized to three-months HIIT including weekly motivational calls, or usual care. At follow-up (six- and 12-months post-stroke), we investigated changes in carstress, cognition, cardiovascular function, and recurrent stroke. Results: We included 71 patients of whom 59 patients (mean age: 63.9 8.8 years) completed six- and 12-month follow-up. No change was detected in cardiorespiratory fitness between groups from baseline to 12-months follow-up. At six months, vigorousintensity activity (median hours/week [interquartile range]) was maintained in the intervention group (baseline, 0[0;2]; post-intervention, 2[0;3]; six-month, 2[0;4]) and increased in the usual care group (baseline, 0[0;1]; post-intervention, 1[0;2]; sixmonth, 1[0;3]), with no difference between groups. Vigorous-intensity activity declined to baseline levels at 12-months in both groups. Secondary outcomes improved from baseline to 12-months with no significant differences between groups. Similar rate of recurrent stroke (n=3) occurred in each group with a three month delay in the intervention group. Conclusions: Early initiated HIIT did not increase long-term cardiorespiratory fitness, but increased time spent doing vigorous-intensity activities post-stroke. Decline to baseline activity level at 12 months warrants identification of motivators to initiate and sustain physical activity post -stroke.
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Key words
Cardiorespiratory fitness,High-intensity-interval-training,Lacunar stroke,Long-term follow-up,Physical activity,Secondary stroke prevention,Stroke recurrence
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