Estimation of energy expenditure by heart rate. Application to apple working days.

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  • USUTANI Saburo
    Department of Public Health, Hirosaki University School of Medicine
  • KIDA Kazuyuki
    Department of Public Health, Hirosaki University School of Medicine
  • NISHIYAMA Kunitaka
    Department of Public Health, Hirosaki University School of Medicine
  • MATSUDA Akihiro
    Department of Public Health, Hirosaki University School of Medicine
  • MANABE Mami
    Department of Public Health, Hirosaki University School of Medicine
  • IINUMA Toshinobu
    Department of Public Health, Hirosaki University School of Medicine

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Other Title
  • 心拍数によるエネルギー消費量の推定　リンゴ栽培労働への適用
  • シンパクスウ ニ ヨル エネルギー ショウヒリョウ ノ スイテイ リンゴ サイ
  • Application to Apple Working Days
  • リンゴ栽培労働への適用

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Utility of heart rate (HR)-oxygen consumption (VO2) method to estimate energy expenditure (EE) was studied for 5 main apple working days based on 24 hour HR recording and EE by this method partially was compared with RMR (relative metabolic rate) method currently used in Japan. Results were as follows:<BR>1. Heart rate during the apple cultivating work were 90-110 beats per minute, that were ranked with moderate work classified by Rodahl.<BR>2. The values of EE estimated by HR-VO2 method in every apple working days were almost suited for that of previous reports by RMR method.<BR>3. Comparing EE by HR-VO2 and RMR method for an example in harvesting work, 2, 654 kcal in former was 376 kcal (16.5%) higher than latter. Correlation coefficient was 0.987 (p<0.001) between both method with EE estimated in every working contents.<BR>4. The intense of activity in a working day from view point of daily activity index (1-EE/basal metabolism) followed the order of harvesting putting sack on≅pluking flower>thinning apple> pruning.<BR>Consequently, estimation of EE by HR-VO2 method was precisely reflected metabolic state in human by comparison in spite of some defects. After this it was expected to use the HR-VO2 method instead of RMR method.

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