J Cachexia Sarcopenia Muscle DOI 10.1007/s13539-014-0131-4
ORIGINAL ARTICLE
Daily physical activity and physical function in adult maintenance hemodialysis patients J. C. Kim & B. B. Shapiro & M. Zhang & Y. Li & J. Porszasz & R. Bross & U. Feroze & R. Upreti & K. Kalantar-Zadeh & J. D. Kopple
Received: 19 November 2013 / Accepted: 24 January 2014 # Springer-Verlag Berlin Heidelberg 2014
Abstract Background Maintenance hemodialysis (MHD) patients reportedly display reduced daily physical activity (DPA) and physical performance. Low daily physical activity and decreased physical performance are each associated with worse outcomes in chronic kidney disease patients. Although daily physical activity and physical performance might be expected to be related, few studies have examined such relationships in MHD patients, and methods for examining daily physical activity often utilized questionnaires rather than activity monitors. We hypothesized that daily physical activity and physical performance are reduced and correlated with each other even in relatively healthier MHD patients.
Methods Daily physical activity, 6-min walk distance (6MWT), sit-to-stand, and stair-climbing tests were measured in 72 MHD patients (32 % diabetics) with limited comorbidities and 39 normal adults of similar age and gender mix. Daily physical activity was examined by a physical activity monitor. The human activity profile was also employed. Results Daily physical activity with the activity monitor, timeaveraged over 7 days, and all three physical performance tests were impaired in MHD patients, to about 60–70 % of normal values (p
ORIGINAL ARTICLE
Daily physical activity and physical function in adult maintenance hemodialysis patients J. C. Kim & B. B. Shapiro & M. Zhang & Y. Li & J. Porszasz & R. Bross & U. Feroze & R. Upreti & K. Kalantar-Zadeh & J. D. Kopple
Received: 19 November 2013 / Accepted: 24 January 2014 # Springer-Verlag Berlin Heidelberg 2014
Abstract Background Maintenance hemodialysis (MHD) patients reportedly display reduced daily physical activity (DPA) and physical performance. Low daily physical activity and decreased physical performance are each associated with worse outcomes in chronic kidney disease patients. Although daily physical activity and physical performance might be expected to be related, few studies have examined such relationships in MHD patients, and methods for examining daily physical activity often utilized questionnaires rather than activity monitors. We hypothesized that daily physical activity and physical performance are reduced and correlated with each other even in relatively healthier MHD patients.
Methods Daily physical activity, 6-min walk distance (6MWT), sit-to-stand, and stair-climbing tests were measured in 72 MHD patients (32 % diabetics) with limited comorbidities and 39 normal adults of similar age and gender mix. Daily physical activity was examined by a physical activity monitor. The human activity profile was also employed. Results Daily physical activity with the activity monitor, timeaveraged over 7 days, and all three physical performance tests were impaired in MHD patients, to about 60–70 % of normal values (p
