Cardiovascular demands of deer retrieval methods

Wilderness & Environmental Medicine
Charles J Fountaine, Mitchell J Evenson

Abstract

The purpose of this study was to compare the cardiovascular (CV) demands of 2 deer retrieval methods. Twelve male participants (weight 86±24 kg, age 21±1 years) performed a maximum treadmill test on day 1 to determine baseline fitness levels. On day 2, all participants first towed, then dragged a 45-kg simulated deer carcass for 457 m at a self-selected pace. The tow condition utilized a shoulder harness system with a 2-m strap connecting the harness to the carcass, allowing the participant to walk upright as he towed the load. The dragging condition required the participants to flex their trunk, grasp the legs of the deer with both hands, and drag the carcass the length of the course. Heart rate and oxygen consumption (VO2) from each trial were measured by indirect calorimetry. The CV responses of towing were significantly less compared with those of dragging for VO2 peak (P=.001), peak heart rate (P=.003), average heart rate (P=.028), and rating of perceived exertion (P<.001). No significant differences were observed for average VO2 (P=.91) or time to completion (P=.27). The results of this study suggest towing a deer with a shoulder harness results in significant reductions in CV demand and lower perceived exertion compared ...Continue Reading

References

Feb 25, 2003·Clinical Autonomic Research : Official Journal of the Clinical Autonomic Research Society·Marc P Kaufman, Shawn G Hayes
Jul 17, 2007·The American Journal of Cardiology·Susan HaapaniemiWilliam W O'Neill
Mar 16, 2012·OncoTargets and Therapy·Jose G Monzon, Janet Dancey

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Citations

Jul 12, 2016·Wilderness & Environmental Medicine·Steven D VerbaJeffrey S Lynn

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