The Mass-to-Surface Area Index of Heat Tolerance in a Large Cohort
Abstract
No large mass-to-surface area (M/SA) data base exists which can be used as a reference standard to interpret previous or future M/SA studies. This report presents the M/SA data of a large military cohort (1170 males aged 17-54 yr, 305 females aged 17-40 yr). The effects of gender, race and age on the distribution of M/SA, as well as the relationship between M/SA and other physical characteristics, were described. It was observed that the increases of M/SA with increasing age (over the 17-25 yr category) were not significant. All descriptive characteristics (including M/SA) were different between males and females. M/Sa was not statistically different between racial groups, in both males and females. For the first time, two step-wise multiple linear regression equations were presented which allow accurate prediction of M/SA in males and females, using only height and body mass as the dependent variables; these equations were as follows. Recommendations for future studies and criticisms of subject selection in previous studies, which did not have the benefit of this data base during the process of subject selection, are presented. Keywords: Body composition, Height, Weight, Fat-free mass, Recta; Temperature, Heart rate, Hyperthermia, Heatstroke, Heat production biology, Heat stress physiology, Exercise physiology, Heat tolerance, Acclimatization, Physical fitness, Anthropometry, Adipose tissue.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 19, 1988
- Accession Number
- ADA201063
Entities
People
- Elaine L. Christensen
- Jane P. De Luca
- Lawrence E. Armstrong
- Roger W. Hubbard
Organizations
- United States Army Research Institute of Environmental Medicine