title: Effect of exercise intensity on percent body fat determined by leg-to-leg and segmental bioelectrical impedance analyses in adults.
abstract: OBJECTIVE
  We examined the impact that cycle ergometry exercise had on percent body fat (% BF) estimates when assessed using either leg-to-leg or segmental bioelectrical impedance analysis (LBIA; SBIA) and whether the intensity of the exercise bout impacts the %BF magnitude of change.
  
  
  METHODS
  Seventy-four college-aged adults participated in this study. Participants visited the laboratory on three separate occasions. Testing included two 30-min exercise sessions (70% HR(max) and 85% HR(max)) and a 30-min no-exercise session, which served as the control.
  
  
  RESULTS
  Following exercise, significant (p < .05) reductions in mean %BF were observed when using LBIA (70% HR(max) = 0.3%; 85% HR(max) = 0.5%) and SBIA (70% HR(max) = 0.8%; 85% HR(max) = 1.4%). The mean %BF reductions were significantly (p < .04) greater following exercise at the higher intensity for both analyzers.
  
  
  CONCLUSIONS
  Our findings indicate that cycle exercise performed before LBIA and SBIA body composition assessment reduces mean %BF estimates. In addition, the %BF reductions were found to be larger at the higher end of the American College of Sports Medicine/American Heart Association recommended intensity range (85% HR(max)) and when the SBIA analyzer was used to conduct the assessment.
authors.affiliation: Department of Exercise Science, Bloomsburg University, 132 Centennial Hall, 400 East Second St., Bloomsburg, PA 17815, USA. jandreac@bloomu.edu
authors.forename: Joseph L
authors.initials: JL
authors.lastname: Andreacci
authors.forename: Trisha
authors.initials: T
authors.lastname: Nagle
authors.forename: Elise
authors.initials: E
authors.lastname: Fitzgerald
authors.forename: Eric S
authors.initials: ES
authors.lastname: Rawson
authors.forename: Curt B
authors.initials: CB
authors.lastname: Dixon
mesh_terms: D000273:Adipose Tissue / Q000378:metabolism*; D000293:Adolescent; D000328:Adult; D001823:Body Composition; D017097:Electric Impedance; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test; D005260:Female; D006801:Humans; D035002:Lower Extremity; D008297:Male