Evaluation of physical activity and its relationship to health-related quality of life in patients on chronic hemodialysis.
OBJECTIVE
The aim of this study was to investigate the relationship between physical activity and health-related quality of life (HRQOL) in patients on chronic hemodialysis.


METHODS
A total of 31 men (69.0 ± 11.1 years) and 17 women (66.9 ± 10.0 years) among 61 male and 30 female patients on chronic hemodialysis at Innoshima General Hospital, Onomichi, Japan, were enrolled in this cross-sectional study. Physical activity was evaluated using tri-axial accelerometers. HRQOL and psychological distress were also evaluated using the EuroQol questionnaire (EQ-5D) and the K6 questionnaire, respectively.


RESULTS
Physical activity evaluated by Σ[metabolic equivalents × h per week (METs·h/w)] was 8.1 ± 6.0 METs·h/w, and EQ-5D score was 0.754 ± 0.177. Among all patients, EQ-5D scores were significantly correlated with physical activity over 4 METs on non-hemodialysis treatment days (r = 0.426, p = 0.003). In women, EQ-5D scores were also correlated with physical activity over 4 METs on hemodialysis treatment days and non-hemodialysis treatment days. By stepwise multiple regression analysis, physical activity over 4 METs on non-hemodialysis treatment days was a determinant factor of EQ-5D even after adjusting for age and K6 scores.


CONCLUSIONS
Physical activity over 4 METs on non-hemodialysis treatment days might be associated with EQ-5D in patients on chronic hemodialysis, especially in women.
Department of Hygiene, Faculty of Medicine, Kagawa University, 1750-1, Miki, Kagawa, 761-0793, Japan, kata@med.kagawa-u.ac.jp.
Akihiko
A
Katayama
Nobuyuki
N
Miyatake
Hiroyuki
H
Nishi
Kazuhiro
K
Uzike
Noriko
N
Sakano
Hiroo
H
Hashimoto
Kiichi
K
Koumoto
D061725:Accelerometry; D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D011788:Quality of Life; D012044:Regression Analysis; D006435:Renal Dialysis; D011795:Surveys and Questionnaires