건축도시공간연구소

Architecture & Urban Research Institute

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한국생활환경학회|한국생활환경학회지 2012년 4월

기사명 다양한 속도의 걷기와 달리기에서 가속도센서의 에너지소비량 추정과 타당성 / Estimation of Energy Expenditure and Validation of Accelerometers during Walking and Running at Various Speed
저자명 배윤정 ; 이희진 ; 이운용 ; 이대택 ; 조위덕 ; 김양원 ; 허익현 ; 노형석
발행사 한국생활환경학회
수록사항 한국생활환경학회지 , v.19 n.2(2012-04)
페이지 시작페이지(223) 총페이지(8)
ISSN 1226-1289
주제분류 환경및설비
주제어 ; accelerometer ; exercise intensity ; sex ; energy expenditure ; correlations
요약2 Physical activity provides various physiological and health promotional benefits. In promoting and monitoring physical activity, accelerometers are often employed. But the algorithm installed within the devices has not been throughly examined whether it reflects human activities sensitively. Currently introduced two accelerometers, Actical and Life Sense, were selected and the values obtained from these two devices and indirectly calorimetry (IC) were compared by sex and exercise intensity. Fifty nine young healthy adults (30 men, 28.3±4.2 yrs, 178.3±4.6 cm, 79.8±10.8 kg, 25.7±3.5 kg·m?2; 29 women, 27.7±5.1 yrs, 161.7±5.0 cm, 59.7±6.5 kg, 22.8±2.2 kg·m-2) participated in the study. They exercised on a treadmill at 6 different speed consecutively such as 3, 5, 7, 9, 10, 11 km·h-1 for men and 2, 4, 6, 8, 9, 10 km·h-1 for women. At each speed, they walked or ran for 5 min and rested 1 min before the next speed. During the exercise, they wore LS and Actical on their waistline. Also EE was measured using a metabolic measurement system. EE for men was 4.53±0.79, 6.17±0.96, 11.03±2.16, 14.80±2.25, 15.75±2.11, and 16.86±2.17 kcal·min?1 at 3, 5, 7, 9, 10, and 11 km·h?1 and EE for women was 2.58±0.56, 3.62±0.70, 5.69±1.01, 9.48±1.17, 10.53±1.37, and 11.25±1.43 kcal·min?1 at 2, 4, 6, 8, 9, and 10 km·h?1, respectively. Except at the lowest speed, EE obtained by three modalities showed high correlations. by sex and treadmill speed. According to Bland-Altman analyses, EE of Actical was consistently low compared to IC regardless sex and speed. Compared to IC, Life Sense showed a proportional error in moderate locomotive speed. Based on the results, Actical underestimated EE compared to IC in both man and woman over the course of treadmill speed. In particular, the two accelerometers do not appear to reflect actual EE sensitivity at low activity level. The sex differences in sensitivity may exist in high exercise intensity.
소장처 한국생활환경학회
언어 한국어