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ScientificWorldJournal. 2013 Dec 21;2013:780783. doi: 10.1155/2013/780783. eCollection 2013.

Association of habitual physical activity measured by an accelerometer with high-density lipoprotein cholesterol levels in maintenance hemodialysis patients.

Author information

1
Department of Rehabilitation Sciences, Graduate School of Medical Sciences, Kitasato University, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0373, Japan ; Hemodialysis Center, Sagami Junkanki Clinic, Sagamihara, Japan.
2
Department of Rehabilitation Sciences, Graduate School of Medical Sciences, Kitasato University, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0373, Japan.
3
Rehabilitation Center, Kitasato University East Hospital, Sagamihara, Japan.
4
Hemodialysis Center, Sagami Junkanki Clinic, Sagamihara, Japan ; Department of Cardioangiology, Graduate School of Medical Sciences, Kitasato University, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0373, Japan.
5
Hemodialysis Center, Sagami Junkanki Clinic, Sagamihara, Japan.
6
Division of Nephrology, Department of Internal Medicine, Kitasato University School of Medicine, Sagamihara, Japan.

Abstract

After confirming the relationship between high-density lipoprotein cholesterol (HDL-C) levels and mortality in hemodialysis patients for study 1, we investigated the effect of physical activity on their HDL-C levels for study 2. In study 1, 266 hemodialysis patients were monitored prospectively for five years, and Cox proportional hazard regression confirmed the contribution of HDL-C to mortality. In study 2, 116 patients were recruited after excluding those with severe comorbidities or requiring assistance from another person to walk. Baseline characteristics, such as demographic factors, physical constitution, primary kidney disease, comorbid conditions, smoking habits, drug use, and laboratory parameters, were collected from patient hospital records. An accelerometer measured physical activity as the number of steps per day over five consecutive days, and multiple regression evaluated the association between physical activity and HDL-C levels. Seventy-seven patients died during the follow-up period. In study 1, we confirmed that HDL-C level was a significant predictor of mortality (P = 0.03). After adjusting for patient characteristics in study 2, physical activity was independently associated with HDL-C levels (adjusted R (2) = 0.255; P = 0.005). In conclusion, physical inactivity was strongly associated with decreased HDL-C levels in hemodialysis patients.

PMID:
24453904
PMCID:
PMC3881674
DOI:
10.1155/2013/780783
[Indexed for MEDLINE]
Free PMC Article
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