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Original Articles

Impact of SCBA size and fatigue from different firefighting work cycles on firefighter gait

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Pages 1208-1215 | Received 11 Jan 2017, Accepted 07 Mar 2018, Published online: 04 Apr 2018
 

Abstract

Risk of slips, trips and falls in firefighters maybe influenced by the firefighter’s equipment and duration of firefighting. This study examined the impact of a four self-contained breathing apparatus (SCBA) three SCBA of increasing size and a prototype design and three work cycles one bout (1B), two bouts with a five-minute break (2B) and two bouts back-to-back (BB) on gait in 30 firefighters. Five gait parameters (double support time, single support time, stride length, step width and stride velocity) were examined pre- and post-firefighting activity. The two largest SCBA resulted in longer double support times relative to the smallest SCBA. Multiple bouts of firefighting activity resulted in increased single and double support time and decreased stride length, step width and stride velocity. These results suggest that with larger SCBA or longer durations of activity, firefighters may adopt more conservative gait patterns to minimise fall risk.

Practitioner Summary: The effects of four self-contained breathing apparatus (SCBA) and three work cycles on five gait parameters were examined pre- and post-firefighting activity. Both SCBA size and work cycle affected gait. The two largest SCBA resulted in longer double support times. Multiple bouts of activity resulted in more conservative gait patterns.

Acknowledgements

The authors would like to give a special thank you to Ipek Ensari, Scott Kesler, Rachel Bollaert, David Lin, and Daniel Martin for their assistance in data collection and testing.

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