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Versatility of Protocols for Resistance Training and Assessment Using Static and Dynamic Ladders in Animal Models
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Firefighters' muscle activity change during firefighting training program.

Na Chen1, Yitong Hu1, Man Liang1

  • 1School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou, Henan Province, P.R. China.

Work (Reading, Mass.)
|July 12, 2024
PubMed
Summary
This summary is machine-generated.

Firefighter training activates specific muscles, with gastrocnemius, tibialis anterior, trapezius, and erector spinae showing high activity. This research aids in preventing firefighter injuries through scientific training strategies.

Keywords:
% MVCFirefighterergonomicsfirefighting training programiEMGmuscle activitysurface electromyography (sEMG)

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Area of Science:

  • Sports Science
  • Occupational Health
  • Biomechanical Analysis

Background:

  • Muscle activity research is crucial for reducing injuries in demanding professions like firefighting.
  • Understanding firefighter training's impact on muscle exertion is gaining scientific interest.

Purpose of the Study:

  • To evaluate muscle activity changes in nine key muscles during seven distinct firefighting training programs.
  • To analyze how different training programs influence firefighter muscle activation patterns.

Main Methods:

  • Ten healthy male firefighters participated in the study.
  • Surface electromyography, including % Maximum Voluntary Contraction (% MVC) and integrated electromyography (iEMG), was used to measure muscle activity.
  • Participants underwent seven standardized firefighting training programs.

Main Results:

  • Gastrocnemius (GA) activity was highest during ladder climbing exercises.
  • Climbing a five-story building with loads intensely activated arm, shoulder, and lower limb muscles, increasing fatigue likelihood.
  • Erector spinae (ES) demonstrated significant activation during water shooting, with high Borg scale ratings for shoulder, trunk, thigh, and calf muscles.

Conclusions:

  • Post-training, GA, tibialis anterior (TA), trapezius (TR), and ES exhibited strong activation and force.
  • Electromyography findings correlated with subjective Borg Scale ratings, validating the perceived exertion.
  • This study provides valuable data for developing targeted injury prevention strategies and optimizing firefighter training protocols.