title: The effects of 10 weeks of reforestation work on body composition.
abstract: OBJECTIVE
  To document changes in body composition and body mass in male and female tree planters.
  
  
  METHODS
  Height, mass, skin-fold thickness, and limb girths were measured in 17 male and 5 female tree planters before and after 10 weeks of work.
  
  
  RESULTS
  Significant decreases were found in body mass (80.6 +/- 10.7 kg vs 76.8 +/- 8.5 kg) and body fat (13.3% +/- 5.5% vs. 10.4% +/- 5.0%) in the men (P < .05). No changes in skin-fold-corrected limb girths were found in the men or women. Initial body mass was significantly (P < .05) correlated with mass loss in men (r2 = .46) and women (r2 = .67). Estimated daily energy consumption was 20680.1 +/- 2204.5 kJ for men and 14516.6 +/- 2077.3 kJ for women, and estimated daily fat consumption was 194.2 +/- 30.1 g for men and 132.3 +/- 35.6 g for women.
  
  
  CONCLUSIONS
  Ten weeks of tree planting leads to significant decreases in body mass and body fat in men while maintaining skin-fold-corrected limb girths.
authors.affiliation: Allan McGavin Sports Medicine Centre, School of Human Kinetics, University of British Columbia, Vancouver, British Columbia, Canada. hodges@interchange.ubc.ca
authors.forename: Alastair N H
authors.initials: AN
authors.lastname: Hodges
authors.forename: Jacqueline D
authors.initials: JD
authors.lastname: Ellis
authors.forename: Donald C
authors.initials: DC
authors.lastname: McKenzie
mesh_terms: D000273:Adipose Tissue; D000328:Adult; D001823:Body Composition; D001827:Body Height; D015992:Body Mass Index; D001955:British Columbia; D003247:Conservation of Natural Resources; D004041:Dietary Fats / Q000008:administration & dosage; D005260:Female; D016468:Forestry; D006801:Humans; D008297:Male; D012885:Skinfold Thickness; D016526:Workload
chemical_list: D004041:Dietary Fats