title: The validity of the non-exercise activity thermogenesis questionnaire evaluated by objectively measured daily physical activity by the triaxial accelerometer.
abstract: BACKGROUND
  Physical inactivity is a major cardiovascular risk factor. Recently, we showed that non-exercise activity thermogenesis (NEAT) assessed by the self-reported questionnaire is favorably associated with metabolic risks in patients with type 2 diabetes. The purpose of the present study was to examine the validity of the questionnaire by comparing with objectively measured daily physical activity (PA) by using the triaxial accelerometer.
  
  
  METHODS
  Daily physical activity level (PAL) of 51 participants (24 men and 27 women) with type 2 diabetes was measured by the triaxial accelerometer. At the same time, we evaluated their NEAT score using our original questionnaire modified from a compendium of physical activities.
  
  
  RESULTS
  The NEAT score was significantly and positively correlated with PAL measured by the triaxial accelerometer (r = 0.604, P < 0.001). PAL was also significantly and positively correlated with both the locomotive NEAT score and the non-locomotive NEAT score (r = 0.444, P = 0.001 and r = 0.526, P < 0.001, respectively).
  
  
  CONCLUSIONS
  The NEAT score measured by the self-reported questionnaire was highly correlated with PAL measured by the triaxial accelerometer. Our original NEAT questionnaire may be useful for evaluation of daily PAL in clinical practices.
authors: Department of Internal Medicine, National Center for Global Health and Medicine Kohnodai Hospital, Chiba, Japan ; Division of Complementary Medicine, First Department of General Medicine, Saitama Medical Center, Jichi Medical University School of Medicine, Saitama, Japan.
authors: Hidetaka
authors: H
authors: Hamasaki
authors: Department of Internal Medicine, National Center for Global Health and Medicine Kohnodai Hospital, Chiba, Japan.
authors: Hidekatsu
authors: H
authors: Yanai
authors: Division of Complementary Medicine, First Department of General Medicine, Saitama Medical Center, Jichi Medical University School of Medicine, Saitama, Japan.
authors: Masafumi
authors: M
authors: Kakei
authors: Department of Diabetes Research, Diabetes Research Center, National Center for Global Health and Medicine, Tokyo, Japan.
authors: Mitsuhiko
authors: M
authors: Noda
authors: Department of Human Health and Design, Faculty of Human Life and Environmental Sciences, Showa Women's University, Tokyo, Japan.
authors: Osamu
authors: O
authors: Ezaki
keywords: Accelerometer; Non exercise activity thermogenesis; Physical activity; Type 2 diabetes