title: Use of body armor protection with fighting load impacts soldier performance and kinematics.
abstract: The purpose of this evaluation was to examine how increasing body armor protection with and without a fighting load impacted soldiers' performance and mobility. Thirteen male soldiers performed one performance (repeated 30-m rushing) and three mobility tasks (walk, walk over and walk under) with three different body armor configurations and an anterior fighting load. Increasing body armor protection, decreased soldier performance, as individual and total 30-m rush times were significantly longer with greater protection. While increasing body armor protection had no impact on mobility, i.e. significant effect on trunk and lower limb biomechanics, during the walk and walk over tasks, greater protection did significantly decrease maximum trunk flexion during the walk under task. Adding fighting load may negatively impact soldier mobility, as greater maximum trunk extension was evident during the walk and walk over tasks, and decreased maximum trunk flexion exhibited during the walk under task with the fighting load.
authors.affiliation: U.S. Army Natick Soldier Research Development and Research Center, Natick, MA, USA; Oak Ridge Institute for Science and Education (ORISE), Belcamp, MD, USA. Electronic address: kari.l.loverro.ctr@mail.mil.
authors.forename: Kari L
authors.initials: KL
authors.lastname: Loverro
authors.affiliation: U.S. Army Natick Soldier Research Development and Research Center, Natick, MA, USA.
authors.forename: Tyler N
authors.initials: TN
authors.lastname: Brown
authors.affiliation: U.S. Army Natick Soldier Research Development and Research Center, Natick, MA, USA.
authors.forename: Megan E
authors.initials: ME
authors.lastname: Coyne
authors.affiliation: U.S. Army Natick Soldier Research Development and Research Center, Natick, MA, USA; Liberty Mutual Research Institute for Safety, Hopkinton, MA, USA.
authors.forename: Jeffrey M
authors.initials: JM
authors.lastname: Schiffman
mesh_terms: D001696:Biomechanical Phenomena; D001753:Blast Injuries / Q000517:prevention & control; D006804:Ergonomics; D005684:Gait / Q000502:physiology*; D006801:Humans; D008297:Male; D008889:Military Personnel; D011481:Protective Clothing; D013647:Task Performance and Analysis; D016474:Weight-Bearing / Q000502:physiology*; D014948:Wounds, Gunshot / Q000517:prevention & control; D055815:Young Adult
keywords: Gait; Obstacle negotiation; Torso load