title: Association between muscular strength and metabolic risk in Japanese women, but not in men.
abstract: We examined whether cardiorespiratory fitness (maximal oxygen uptake, VO(2)max) and muscular strength (grip strength) are associated with individual and clustered metabolic risk factors independently of abdominal adiposity in Japanese men (n=110) and women (n=110) aged 20-69 years. Blood pressure, triglycerides (TG), HDL cholesterol, and fasting plasma glucose (FPG) were assessed and metabolic risk score was calculated, which is the sum of the z scores for each individual risk factor. Waist circumference was measured and the area of visceral fat was assessed by MRI. Multiple linear regression analysis revealed that VO(2)max was inversely associated with TG in men (p<0.05) and grip strength was negatively associated with FPG and metabolic risk score in women (p<0.001 and p<0.05, respectively), independently of waist circumference. Adjusting for visceral fat instead of waist circumference, similar results were obtained in women (p<0.01 and p<0.05, respectively), but the association between VO(2)max and TG in men was attenuated to nonsignificant. This cross-sectional study demonstrates that muscular strength is inversely associated with plasma glucose levels and clustered metabolic risk factors independently of abdominal adiposity in Japanese women, but not in men.
authors.affiliation: Graduate School of Sport Sciences, Waseda University, Saitama, Japan.
authors.forename: Tomoko
authors.initials: T
authors.lastname: Aoyama
authors.forename: Meiko
authors.initials: M
authors.lastname: Asaka
authors.forename: Toshimichi
authors.initials: T
authors.lastname: Ishijima
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kawano
authors.forename: Zhen-Bo
authors.initials: ZB
authors.lastname: Cao
authors.forename: Shizuo
authors.initials: S
authors.lastname: Sakamoto
authors.forename: Izumi
authors.initials: I
authors.lastname: Tabata
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Higuchi
mesh_terms: D000328:Adult; D000368:Aged; D015992:Body Mass Index; D005260:Female; D018737:Hand Strength / Q000502:physiology*; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male; D024821:Metabolic Syndrome / Q000378:metabolism / Q000503:physiopathology; D008875:Middle Aged; D010809:Physical Fitness; D012737:Sex Factors