Key result
Heart rate variability parameters in the acute phase of stroke correlated positively with motor performance at two weeks (r=0.47, p<0.01) and three months (r=0.41, p<0.01) post-event.
Why the study?
Do Heart Rate Variability (HRV) parameters correlate with motor impairment and aerobic capacity in patients with recent ischemic stroke?
Observational (n=39)
Do Heart Rate Variability (HRV) parameters correlate with motor impairment and aerobic capacity in patients with recent ischemic stroke?
Effect estimate: r(p) = 0.47
p-value: p=< 0.01
HRV in the acute phase of stroke correlates with motor performance and aerobic capacity, suggesting potential prognostic value for motor recovery.
Acute HRV was associated with motor recovery after stroke; hypothesis-generating and requires prospective validation before clinical use.
OBJECTIVE: To examine the correlation between motor impairment, aerobic capacity and HRV parameters in patients who had recently had an ischemic stroke. DESIGN: Thirty-nine patients, after a first CVA. MEASUREMENTS: motor performance (measured by the Motor Assessment Scale (MAS)), aerobic capacity (measured by Heart Rate (HR) at maximal effort and maximal workload (MWL) at graded stress test), both tested two weeks and three-month post event. Heart Rate Variability (HRV) parameters included time domain (ms) and power spectrum (ms(2)) were tested up to two weeks post event. RESULTS: HRV parameters correlated positively with motor performance and aerobic capacity two weeks (MAS: r(p) = 0.47, p < 0.01, maximal workload: r(p) = 0.26, P < 0.05) and three-month (MAS: r(p) = 0.41, p < 0.01, maximal workload: r(p) = 0.20, not significant) post-stroke. CONCLUSIONS: HRV in the acute phase of stroke have positive connection to motor performance and aerobic capacity two weeks post event, and may have a prognostic value to assess motor ability three-month post the event.
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Katz‐Leurer et al. (2005) conducted an observational in ischemic stroke (n=39). Heart Rate Variability (HRV) parameters was evaluated on Correlation with motor performance (Motor Assessment Scale) at two weeks (r(p) = 0.47, p=< 0.01). Heart rate variability parameters in the acute phase of stroke correlated positively with motor performance at two weeks (r=0.47, p<0.01) and three months (r=0.41, p<0.01) post-event.
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