title: Whole-Body Vibration Training Improves Heart Rate Variability and Body Fat Percentage in Obese Hispanic Postmenopausal Women.
abstract: The present study examined the effects of a 6-week whole-body vibration training (WBVT) regimen on heart rate variability (HRV) and body composition in obese Hispanic postmenopausal women. Participants were randomly assigned to either WBVT (n = 13) or a nonexercising control group (n = 14). HRV and body composition were measured before and after 6 weeks. There was a significant group by time interaction (P < .05) for heart rate, sympathovagal balance, and body fat percentage (BF%) such that all significantly decreased (P < .05); and R-R intervals significantly increased (P < .05) following WBVT compared to no changes after control. The changes in sympathovagal balance were correlated with changes in BF% (r = .63, P < .05). Our findings indicate that WBVT improves HRV and BF% in obese Hispanic postmenopausal women. The improvement in BF% partially explained the decrease in sympathovagal balance. Since obese and older individuals are at increased risk of developing cardiovascular diseases, they could potentially benefit from WBVT.
authors.forename: Gregory
authors.initials: G
authors.lastname: Severino
authors.forename: Marcos
authors.initials: M
authors.lastname: Sanchez-Gonzalez
authors.forename: Michelle
authors.initials: M
authors.lastname: Walters-Edwards
authors.forename: Michael
authors.initials: M
authors.lastname: Nordvall
authors.forename: Oksana
authors.initials: O
authors.lastname: Chernykh
authors.forename: Jason
authors.initials: J
authors.lastname: Adames
authors.forename: Alexei
authors.initials: A
authors.lastname: Wong
mesh_terms: D000368:Aged; D050218:Body Fat Distribution / Q000379:methods*; D005260:Female; D006339:Heart Rate; D006630:Hispanic or Latino; D006801:Humans; D008875:Middle Aged; D009765:Obesity / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy; D026741:Physical Therapy Modalities; D017698:Postmenopause / Q000502:physiology*; D016896:Treatment Outcome; D014732:Vibration
keywords: body fat percentage; heart rate variability; whole-body vibration