title: Effect of load carriage on performance of an explosive, anaerobic military task.
abstract: This study examined the effects of load carriage on performance of an explosive, anaerobic military task. A task-specific assessment requiring five 30-m timed sprints was developed to address this question. Seventeen soldiers (female = 5, male = 12) volunteered to undergo the test under two experimental conditions: unloaded (combat uniform and boots) and loaded (unloaded plus 21.6 kg fighting load, comprising webbing, weapon, helmet, and combat body armor). When loaded, there was a significant increase in the mean 30-m sprint time compared to unloaded (8.2 +/- 1.4 seconds vs. 6.2 +/- 0.8 seconds; p < 0.01). Of the total increase in mean sprint time, 51.7% occurred within the first 5 m. Female sprint times were affected to a larger extent than male (36% vs. 29%, respectively) as a result of the increased load. Fighting load significantly affected soldier mobility when conducting explosive, anaerobic military tasks, particularly among females, and specific physical conditioning should be considered to minimize this effect.
authors: Defence Science and Technology Organisation, 506 Lorimer Street, Fishermans Bend, Victoria 3207, Australia.
authors: Alison K Laing
authors: AK
authors: Treloar
authors: Daniel C
authors: DC
authors: Billing
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D004864:Equipment and Supplies; D005260:Female; D005684:Gait / Q000502:physiology*; D006801:Humans; D008297:Male; D008889:Military Personnel; D010809:Physical Fitness / Q000502:physiology; D012737:Sex Factors; D016474:Weight-Bearing / Q000502:physiology*; D055815:Young Adult