Circulating adiponectin levels are associated with peak oxygen uptake in Japanese.
OBJECTIVE
The aim of this study was to investigate the link between circulating adiponectin levels and peak oxygen uptake and/or physical activity in Japanese.


METHODS
A total of 528 subjects (188 men and 340 women) were enrolled in this cross-sectional study. Circulating adiponectin levels, physical activity measured by tri-axial accelerometers, peak oxygen uptake and metabolic risk parameters were evaluated. We also assessed anthropometric factors, blood pressure, blood examinations and energy intake.


RESULTS
Circulating adiponectin levels were 6.7 ± 3.0 μg/mL in men and 11.0 ± 4.9 μg/mL in women. Circulating adiponectin levels were positively correlated with physical fitness after adjusting for age, physical activity evaluated by Σ [metabolic equivalents × h per week (METs h/w)], cigarette smoking habit and energy intake in both sexes. However, these associations were attenuated further after adjusting for body mass index including other confounding factors, especially in men. However, circulating adiponectin levels were not associated with physical activity in either sex.


CONCLUSIONS
Circulating adiponectin levels were associated with peak oxygen uptake rather than physical activity.
Department of Hygiene, Faculty of Medicine, Kagawa University, Miki, Kagawa, 761-0793, Japan, miyarin@med.kagawa-u.ac.jp.
Nobuyuki
N
Miyatake
Takeyuki
T
Numata
Haruka
H
Murakami
Ryoko
R
Kawakami
Kiyoshi
K
Sanada
Izumi
I
Tabata
Motohiko
M
Miyachi
D061725:Accelerometry; D052242:Adiponectin / Q000097:blood; D000328:Adult; D001774:Blood Chemical Analysis; D001794:Blood Pressure; D001823:Body Composition; D003430:Cross-Sectional Studies; D002149:Energy Intake; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D010100:Oxygen / Q000378:metabolism*; D010366:Peak Expiratory Flow Rate
D052242:Adiponectin; D010100:Oxygen