An ergonomics assessment of three simulated 120 m ladder ascents: A comparison of novice and experienced climbers.
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2020
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Abstract
This study investigated the ergonomics of three simulated 120 m vertical ladder ascents and differences between novice (NC) and experienced climbers (EC). Seven EC and 10 NC undertook three 120 m climbs; comprising of four 30 m climbs. Ascending 120 m was reported as a high physical demand, supported by high peak HRs (~173 b.min across the three climbs) and V˙ O (~3.1 L.min across the three climbs). Grip strength and endurance were significantly (p < 0.05) impaired by ascents. With multiple ascents, toe clearance was reduced (Climb 1 - 0.0515 m; Climb 3 - 0.046 m), and participants reached higher with their arms (shoulder angle: Climb 1 - 117°; Climb 3 - 136°). NC demonstrated less range of movement through the hips (NC - 46°; EC - 58°), and higher muscle activation in the upper body (NC - 60%; EC - 49%). Experience reduced cumulative climbing times (exercise + rest), whilst maintaining the same physiological demand as NC and maintained optimised movement patterns for longer.
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| Reference Key |
milligan2020anapplied
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|---|---|
| Authors | Milligan, Gemma S;O'Halloran, Joseph;Tipton, Michael J; |
| Journal | Applied ergonomics |
| Year | 2020 |
| DOI |
S0003-6870(19)30249-2
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