Back to Search
Start Over
Aerobic fitness, energy balance, and body mass index are associated with training load assessed by activity energy expenditure.
- Source :
-
Scandinavian journal of medicine & science in sports [Scand J Med Sci Sports] 2009 Dec; Vol. 19 (6), pp. 871-8. Date of Electronic Publication: 2008 Oct 13. - Publication Year :
- 2009
-
Abstract
- The present study examined whether activity energy expenditure related to body mass (AEE/kg) is associated with maximal aerobic fitness (VO(2max)), energy balance, and body mass index (BMI) during the 2 hardest weeks of the military basic training season (BT). An additional purpose was to study the accuracy of the pre-filled food diary energy intake. Energy expenditure (EE) with doubly labeled water, energy intake (EI), energy balance, and mis-recording was measured from 24 male conscripts with varying VO(2max). AEE/kg was calculated as (EE x 0.9-measured basal metabolic rate)/body mass. The reported EI was lower (P<0.001) than EE (15.48 MJ/day) and mis-recording of the pre-filled diary was -20%. The negative energy balance (-6+/-26%) was non-significant; however, the variation was high. The subjects with a low VO(2max), a high BMI, and a negative energy balance were vulnerable to low AEE/kg. However, in the multivariate regression analysis only BMI remained in the model, explaining 33% of the variation in AEE/kg. During wintertime BT, AEE/kg is affected by energy balance, VO(2max), and BMI. From these three factors, overweight limits high-level training the most. Furthermore, an optimal energy balance facilitates physical performance and enables high training loads to be sustained during the BT season.
Details
- Language :
- English
- ISSN :
- 1600-0838
- Volume :
- 19
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Scandinavian journal of medicine & science in sports
- Publication Type :
- Academic Journal
- Accession number :
- 18980607
- Full Text :
- https://doi.org/10.1111/j.1600-0838.2008.00857.x