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Full-Text Articles in Expeditionary Education
An Exploratory Analysis Of The Role Of Sex In Load Carriage, Rachel E. Perez, Dustin R. Slivka, Brent C. Ruby
An Exploratory Analysis Of The Role Of Sex In Load Carriage, Rachel E. Perez, Dustin R. Slivka, Brent C. Ruby
Graduate Student Theses, Dissertations, & Professional Papers
Axially loaded weight may impose a metabolic demand equivalent to that of fat mass (FM) during load carriage. Males (M) typically have a lower body fat percentage than females (F), resulting in metabolic demand differences during load carriage that may be mitigated by accounting for FM in pack loads. PURPOSE: To determine whether normalizing pack load to FM equalizes metabolic cost across sexes during load carriage. METHODS: Twenty-eight participants (14M, 23 ± 5 y, 1.81 ± 0.07 m, 78.7 ± 10.0 kg, 12.7 ± 5.4% body fat, VO2peak 4.18 ± 0.54 L·min-1; 14F, 22 ± 4 …
Developing A Practical Application Of The Isometric Squat And Surface Electromyography, David Phillips, Angelic Rose Del Vecchio, Kevin Carroll, Evan L. Matthews
Developing A Practical Application Of The Isometric Squat And Surface Electromyography, David Phillips, Angelic Rose Del Vecchio, Kevin Carroll, Evan L. Matthews
Department of Exercise Science and Physical Education Scholarship and Creative Works
Electromyography (EMG) is a research tool used in gait analysis, muscle coordination evaluation, clinical evaluation and sports techniques. Electromyography can provide an insight into neural adaptations, cross education effects, bilateral contraction deficiencies, and antagonist activity in exercise-related movements. While there are clear benefits to using EMG in exercise-related professions, accessibility, cost, and difficulty interpreting the data limit its use in strength and clinical settings. We propose a practical EMG assessment using the isometric squat to identify compensatory activation patterns and report early observations. Ten healthy participants were recruited. Participants performed a 2-min isometric handgrip protocol and an isometric squat protocol. …