Lane Charity L, Hardwick Dustin, Janus Thomas P, Chen Henian, Lu Yuanyuan, Mayer John M
U.S. Spine & Sport Foundation, San Diego, CA, USA.
Excellcior LLC, Tampa, FL, USA.
Work. 2019;62(3):459-467. doi: 10.3233/WOR-192880.
Muscular strength and endurance are important attributes for structural firefighting. Matching resistance exercises to firefighter job demands is not well-established.
This study compared the electromyographic (EMG) activity of major muscles during the Candidate Physical Ability Test (CPAT) and weight lifting exercises in firefighters.
A repeated measures study was conducted in 13 full-duty career firefighters (1 F, 12 M; age 18-44 years). Participants completed seven weight lifting exercises at a university laboratory. They separately completed the CPAT at a firefighting training grounds. During each activity, surface EMG (% maximum voluntary isometric contraction - MVIC) of major muscle groups was recorded and compared between exercises and CPAT.
No difference in EMG activity was observed between exercises and CPAT for the deltoid, trapezius, lumbar multifidus, gluteal, and biceps femoris muscles. EMG activity was significantly greater during the CPAT for the abdominal obliques (32.3% ±27.7% vs. 12.1% ±8.3%, p < 0.001) and for the latissimus dorsi (21.8% ±25.1% vs. 11.4% ±7.7%, p < 0.001).
Standard weight lifting and abdominal oblique exercises should be incorporated into resistance training programs for firefighters.
肌肉力量和耐力是结构消防工作的重要属性。使阻力训练与消防员工作需求相匹配的方法尚未完全确立。
本研究比较了消防员在体能测试（CPAT）和举重练习期间主要肌肉的肌电图（EMG）活动。
对13名全职职业消防员（1名女性，12名男性；年龄18 - 44岁）进行了一项重复测量研究。参与者在大学实验室完成了七项举重练习。他们分别在消防训练场完成了CPAT。在每项活动期间，记录主要肌肉群的表面肌电图（最大自主等长收缩百分比 - MVIC），并在练习和CPAT之间进行比较。
三角肌、斜方肌、腰多裂肌、臀肌和股二头肌在练习和CPAT之间的肌电图活动没有差异。腹外斜肌（32.3% ±27.7% 对 12.1% ±8.3%，p < 0.001）和背阔肌（21.8% ±25.1% 对 11.4% ±7.7%，p < 0.001）在CPAT期间的肌电图活动显著更高。
标准举重和腹外斜肌练习应纳入消防员的阻力训练计划。
