title: Differences in regional adiposity, bone mineral density, and physical exercise participation based on exercise self-efficacy among senior adults.
abstract: OBJECTIVE
  The impact of exercise self-efficacy levels (ESE) on exercise participation, levels of body fat (BF), and bone mineral density (BMD) are unclear in senior-aged adults. The purpose of this study was to investigate effects of ESE on exercise participation, regional distribution of BF, and BMD among seniors.
  
  
  METHODS
  Senior adults (N.=76; 36 males, 40 females) were separated into tertiles (T1, age=60.4±1.4; T2, age=61.3±1.4; T3, age=60.4±1.5) based on self-reported levels of ESE. BMD and regional BF were measured using dual-energy x-ray absorptiometry and exercise participation levels were measured using the Rapid Physical-Activity Questionnaire.
  
  
  RESULTS
  MANOVA revealed a significant Wilks Lambda (p < 0.001) and univariate analysis was completed for exercise participation levels, android BF, gynoid BF, and spinal BMD. ANOVA revealed T3 was significantly lower for android BF (p=0.002) than T1 and T2 (30% and 26%, respectively) while gynoid BF was significantly lower (p=0.012) for T3 (24%) compared to T1. When evaluating exercise participation levels, T3 was significantly higher (p < 0.001) than T1 or T2. Spinal BMD was significantly higher (p=0.030) between T2 (10%) and T1.
  
  
  CONCLUSIONS
  ESE is an important factor in senior adults ability to maintain longitudinal health.
authors.affiliation: Sport & Movement Science Lab, Department of Kinesiology, Louisiana Tech University, Ruston, LA, USA - jmglenn@latech.edu.
authors.forename: J M
authors.initials: JM
authors.lastname: Glenn
authors.forename: M
authors.initials: M
authors.lastname: Gray
authors.forename: J L
authors.initials: JL
authors.lastname: Vincenzo
mesh_terms: D015502:Absorptiometry, Photon; D050154:Adiposity; D000328:Adult; D015519:Bone Density; D015444:Exercise / Q000502:physiology* / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D020377:Self Efficacy