Validity of 3-axis accelerometry (ActiGraph Link GT9X) for quantifying and visualizing real-world arm activity in post-stroke hemiplegic patients

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  • Hanada Keisuke
    Department of Rehabilitation, Suisyokai Murata Hospital Graduate School of Health Sciences, Yamagata Prefectural University of Health Sciences (Doctor’s Programs)
  • Takebayashi Takashi
    Department of Occupational Therapy, School of Comprehensive Rehabilitation, Osaka Prefecture University
  • Kohno Masashi
    Department of Rehabilitation, Suisyokai Murata Hospital
  • Ichimura Sachimori
    Department of Rehabilitation, Suisyokai Murata Hospital
  • Hirayama Kazumi
    Department of Occupational Therapy, Yamagata Prefectural University of Health Sciences

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Other Title
  • 脳卒中片麻痺患者を対象とした加速度計（ActiGraph Link GT9X）による上肢活動量計測と活動量可視化の試み
  • 脳卒中片麻痺患者を対象とした加速度計(ActiGraph Link GT9X)による上肢活動量計測と活動量可視化の試み : 3点計測法の妥当性の検討
  • ノウソッチュウ ヘンマヒ カンジャ オ タイショウ ト シタ カソクドケイ(ActiGraph Link GT9X)ニ ヨル ジョウシ カツドウリョウ ケイソク ト カツドウリョウ カシカ ノ ココロミ : 3テン ケイソクホウ ノ ダトウセイ ノ ケントウ
  • ─3点計測法の妥当性の検討─

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Abstract

This study examined the efficacy of accelerometry for monitoring real-world arm activity (ActiGraph Link GT9X) in stroke patients, and whether the monitoring by 2-accelerometers or 3-accelerometers is more appropriate. The study design was a cross-sectional single-center study. Thirty-seven subjects wore 3-accelerometers (left hand, right hand and chest) and were monitored for 24 consecutive hours, and the activity ratio of the paretic hand was calculated using the value of each hand minus the value of the chest. Regardless of monitoring method, a moderate to strong correlation was shown between the activity ratio of the paretic hand and functional assessment. The 3-accelerometer monitoring was not shown to be superior to the 2-accelerometer monitoring. Which method best reflects real-world arm activity of stroke patients should be investigated.

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