The Effects of 10 Weeks of Reforestation Work on Body Composition

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...

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Veröffentlicht in:Wilderness & environmental medicine 2005, Vol.16 (1), p.3-8
Hauptverfasser: Hodges, Alastair N.H., Ellis, Jacqueline D., McKenzie, Donald C.
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creator Hodges, Alastair N.H.
Ellis, Jacqueline D.
McKenzie, Donald C.
description 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.
doi_str_mv 10.1580/PR01-03.1
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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 &lt; .05). No changes in skin-fold–corrected limb girths were found in the men or women. Initial body mass was significantly (P &lt; .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. 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subjects Adipose Tissue
Adult
Body Composition
Body Height
Body Mass Index
British Columbia
Conservation of Natural Resources
Dietary Fats - administration & dosage
energy expenditure
Female
Forestry
Humans
Male
manual labor
occupational
ORIGINAL RESEARCH
Skinfold Thickness
tree planting
weight loss
Workload
title The Effects of 10 Weeks of Reforestation Work on Body Composition
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