摘要

BACKGROUND: Whether post-stroke spasticity is associated with autonomic status is unclear. The purpose of our study was to determine whether spasticity in post-stroke patients is associated with heart rate variability (HRV), an indicator of sympathetic and parasympathetic regulation. OBJECTIVE: To determine whether HRV is associated with spasticity in post-stroke patients. METHODS: Our cross-sectional observational study included 21 post-stroke patients with varying degrees of knee spasticity. We measured patients' heart rate variability (HRV) during the morning and afternoon of the same day using the modified Ashworth assessment and the pendulum test. The relationship between HRV and the spasticity parameters was evaluated based on the Pearson correlation coefficient (r). RESULTS: The data for the morning measurements showed that the relaxation index negatively correlated with the high frequency (HF) power of HRV (r = -0.47, P <0.05), and positively correlated with the low frequency (LF) power of HRV (r = 0.47, P <0.05) and the LF/HF power ratio (r = 0.55, P <0.05). Similar correlations were observed between the diurnal differences of HRV and the relaxation index. No correlation was observed among the data for the afternoon measurements. CONCLUSIONS: Higher parasympathetic tone and lower sympathetic tone are associated with a higher degree of knee spasticity in post-stroke patients. Further studies are warranted to confirm our findings and investigate the pathological mechanisms involved.
原文英語
頁(從 - 到)227-233
頁數7
期刊NeuroRehabilitation
34
發行號2
DOIs
出版狀態已發佈 - 2014

指紋

Heart Rate
Stroke
Knee
Observational Studies
Cross-Sectional Studies

ASJC Scopus subject areas

  • Clinical Neurology
  • Rehabilitation
  • Physical Therapy, Sports Therapy and Rehabilitation

引用此文

Cardiac autonomic status is associated with spasticity in post-stroke patients. / Hung, Chi Yao; Tseng, Sung-Hui; Chen, Shih-Ching; Chiu, Hou Chang; Lai, Chien-Hung; Kang, Jiunn-Horng.

於: NeuroRehabilitation, 卷 34, 編號 2, 2014, p. 227-233.

研究成果: 雜誌貢獻文章

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abstract = "BACKGROUND: Whether post-stroke spasticity is associated with autonomic status is unclear. The purpose of our study was to determine whether spasticity in post-stroke patients is associated with heart rate variability (HRV), an indicator of sympathetic and parasympathetic regulation. OBJECTIVE: To determine whether HRV is associated with spasticity in post-stroke patients. METHODS: Our cross-sectional observational study included 21 post-stroke patients with varying degrees of knee spasticity. We measured patients' heart rate variability (HRV) during the morning and afternoon of the same day using the modified Ashworth assessment and the pendulum test. The relationship between HRV and the spasticity parameters was evaluated based on the Pearson correlation coefficient (r). RESULTS: The data for the morning measurements showed that the relaxation index negatively correlated with the high frequency (HF) power of HRV (r = -0.47, P <0.05), and positively correlated with the low frequency (LF) power of HRV (r = 0.47, P <0.05) and the LF/HF power ratio (r = 0.55, P <0.05). Similar correlations were observed between the diurnal differences of HRV and the relaxation index. No correlation was observed among the data for the afternoon measurements. CONCLUSIONS: Higher parasympathetic tone and lower sympathetic tone are associated with a higher degree of knee spasticity in post-stroke patients. Further studies are warranted to confirm our findings and investigate the pathological mechanisms involved.",
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AU - Hung, Chi Yao

AU - Tseng, Sung-Hui

AU - Chen, Shih-Ching

AU - Chiu, Hou Chang

AU - Lai, Chien-Hung

AU - Kang, Jiunn-Horng

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N2 - BACKGROUND: Whether post-stroke spasticity is associated with autonomic status is unclear. The purpose of our study was to determine whether spasticity in post-stroke patients is associated with heart rate variability (HRV), an indicator of sympathetic and parasympathetic regulation. OBJECTIVE: To determine whether HRV is associated with spasticity in post-stroke patients. METHODS: Our cross-sectional observational study included 21 post-stroke patients with varying degrees of knee spasticity. We measured patients' heart rate variability (HRV) during the morning and afternoon of the same day using the modified Ashworth assessment and the pendulum test. The relationship between HRV and the spasticity parameters was evaluated based on the Pearson correlation coefficient (r). RESULTS: The data for the morning measurements showed that the relaxation index negatively correlated with the high frequency (HF) power of HRV (r = -0.47, P <0.05), and positively correlated with the low frequency (LF) power of HRV (r = 0.47, P <0.05) and the LF/HF power ratio (r = 0.55, P <0.05). Similar correlations were observed between the diurnal differences of HRV and the relaxation index. No correlation was observed among the data for the afternoon measurements. CONCLUSIONS: Higher parasympathetic tone and lower sympathetic tone are associated with a higher degree of knee spasticity in post-stroke patients. Further studies are warranted to confirm our findings and investigate the pathological mechanisms involved.

AB - BACKGROUND: Whether post-stroke spasticity is associated with autonomic status is unclear. The purpose of our study was to determine whether spasticity in post-stroke patients is associated with heart rate variability (HRV), an indicator of sympathetic and parasympathetic regulation. OBJECTIVE: To determine whether HRV is associated with spasticity in post-stroke patients. METHODS: Our cross-sectional observational study included 21 post-stroke patients with varying degrees of knee spasticity. We measured patients' heart rate variability (HRV) during the morning and afternoon of the same day using the modified Ashworth assessment and the pendulum test. The relationship between HRV and the spasticity parameters was evaluated based on the Pearson correlation coefficient (r). RESULTS: The data for the morning measurements showed that the relaxation index negatively correlated with the high frequency (HF) power of HRV (r = -0.47, P <0.05), and positively correlated with the low frequency (LF) power of HRV (r = 0.47, P <0.05) and the LF/HF power ratio (r = 0.55, P <0.05). Similar correlations were observed between the diurnal differences of HRV and the relaxation index. No correlation was observed among the data for the afternoon measurements. CONCLUSIONS: Higher parasympathetic tone and lower sympathetic tone are associated with a higher degree of knee spasticity in post-stroke patients. Further studies are warranted to confirm our findings and investigate the pathological mechanisms involved.

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