Association between activity level assessed by a uniaxial accelerometer and metabolic equivalents during walking and running in male youths

Kensaku Sasayama, Minoru Adachi

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2 Citations (Scopus)

Abstract

The purpose of this study was to investigate the association between activity levels assessed by a uniaxial accelerometer and metabolic equivalents (METs) during walking and running in school students. The participants were elementary (10 boys, 10.3 ± 0.8 years), middle (10 boys, 13.0 ± 0.9 years) and high school students (10 boys, 15.7 ± 0.7 years) who performed treadmill walking (1, 3, and 5 km/h respectively) and running (5, 7, and 9 km/h respectively) trials. Activity levels were assessed using a uniaxial accelerometer (Lifecorder EX; Suzuken Co. Ltd., Nagoya, Japan). Energy expenditure was measured by indirect calorimetry. METs and activity levels indicated by Lifecorder were highly correlated in elementary (y = 0.0432x2 + 0.0914x + 1.786, r = 0.883, p <0.05), middle (y = 0.0781x2 - 0.0262x + 2.1098, r = 0.913, p <0.05), and high (y = 0.0516x2 + 0.1863x + 1.7812, r = 0.876, p <0.05) school students. We confirmed that higher accuracy showed LC5, LC4, and LC4 for elementary, middle, and high school students, respectively. In conclusion, this study suggests that Lifecorder intensity for ≥3 METs physical activity indicate ≥5, ≥4, and ≥4 for elementary, middle, and high school students, respectively.

Original languageEnglish
Pages (from-to)265-272
Number of pages8
JournalJapanese Journal of Physical Fitness and Sports Medicine
Volume65
Issue number2
DOIs
Publication statusPublished - 2016

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Keywords

  • Accelerometer
  • Adolescents
  • Children
  • Metabolic equivalents
  • Physical activity

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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