1.5 mile run time and body mass predict 8 mile loaded march performance, irrespective of sex

Coakley, Sarah L., Myers, Stephen D., Walker, Ella F., Hale, Beverley J., Jackson, Sarah, Greeves, Julie P., Roberts, Russell and Blacker, Sam D. (2018) 1.5 mile run time and body mass predict 8 mile loaded march performance, irrespective of sex. Journal of Science and Medicine in Sport. ISSN 1440-2440

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Abstract

Objectives: To develop a statistical model to predict 8 mile Loaded March (LM) performance and quantify differences in physical characteristics for men and women British Army Personnel. Design: 135 trained soldiers (87 men; 48 women) completed two sessions, seven days apart. Methods: Session 1: Participants’ stature, body mass, Fat Free Mass (FFM) [by dual-energy x-ray absorptiometry], Single Lift (SL), Water Can Carry (WCC), and 1.5 mile run performance were measured. Session 2: Participants completed an 8 mile LM, carrying 25 kg (4 miles paced and 4 miles individual best effort). Sex differences were compared using independent samples t-tests and 8 mile LM performance time was predicted using various multiple linear regression analysis: hierarchical forced entry multiple ordinary least squares, principal component and ordinary least products. Results: A combination of 1.5 mile run time and body mass were the strongest predictors of 8 mile LM time (R2=0.71; SEE=4.17 min; p<0.001). Including stature, FFM, sex, SL score, or WCC score did not further improve predictions (p>0.05). Compared to women, men had faster mean 1.5 mile run and LM times, greater body mass and total FFM and higher SL and WCC scores (p<0.001), however some women outperformed men. Conclusion: 1.5 mile run time and body mass predict 8 mile LM performance with no further improvement gained in the model by including sex as a variable.

Item Type: Article
Uncontrolled Keywords: Body composition, Linear models, Load carriage, Military personnel, Sex
Subjects: H Social Sciences > HQ The family. Marriage. Women > HQ1088 Men
H Social Sciences > HQ The family. Marriage. Women > HQ1101 Women. Feminism
Q Science > QP Physiology
U Military Science > U Military Science (General)
Divisions: Departments > Sport and Exercise Sciences
Related URLs:
Depositing User: Sarah Coakley
Date Deposited: 02 Oct 2018 11:53
Last Modified: 20 Jul 2019 00:10
URI: http://eprints.chi.ac.uk/id/eprint/3803

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