TY - JOUR
T1 - Use of accelerometry to quantify the physical activity level of the elderly
AU - Gao, Kelly L.
AU - Tsang, William W.N.
N1 - Funding Information:
The authors thank The Hong Kong Polytechnic University for financial support of this study through an Area of Strategic Development grant to William W.N. Tsang et al. We thank the older adult centres for permission to recruit their subjects, and the subjects for their participation, and Mr Bill Purves for his English editorial advice.
PY - 2008
Y1 - 2008
N2 - This study investigated the reliability and validity of using an accelerometry system to quantify the physical activity level of Chinese elderly subjects. Thirty-eight volunteers wore an accelerometer for 3 days. Test-retest reliability, the sensitivity of the measurements, and the correlation between the results and the results of a commonly used physical activity questionnaire were measured. The accelerometry system was found to be reliable (intraclass correlation coefficient, 0.978). The system was able to differentiate young adults and active elderly from sedentary elderly subjects (p<0.001).The results showed a moderate but significant correlation with scores on the questionnaire (r=0.830; p<0.001). The accelerometry system can be used as an objective tool to quantify the physical activity level of the elderly, specifically Chinese subjects.
AB - This study investigated the reliability and validity of using an accelerometry system to quantify the physical activity level of Chinese elderly subjects. Thirty-eight volunteers wore an accelerometer for 3 days. Test-retest reliability, the sensitivity of the measurements, and the correlation between the results and the results of a commonly used physical activity questionnaire were measured. The accelerometry system was found to be reliable (intraclass correlation coefficient, 0.978). The system was able to differentiate young adults and active elderly from sedentary elderly subjects (p<0.001).The results showed a moderate but significant correlation with scores on the questionnaire (r=0.830; p<0.001). The accelerometry system can be used as an objective tool to quantify the physical activity level of the elderly, specifically Chinese subjects.
KW - Health
KW - Motion sensors
KW - Older adults
KW - Physical activity level
UR - http://www.scopus.com/inward/record.url?scp=61849156774&partnerID=8YFLogxK
U2 - 10.1016/S1013-7025(09)70004-1
DO - 10.1016/S1013-7025(09)70004-1
M3 - Article
AN - SCOPUS:61849156774
SN - 1013-7025
VL - 26
SP - 18
EP - 23
JO - Hong Kong Physiotherapy Journal
JF - Hong Kong Physiotherapy Journal
IS - 1
ER -