biostudies-literatureLiu MNational Key Research and Development Program of China962546https://www.ebi.ac.uk/biostudies/studies/S-EPMC9428679biostudies-literatureUnknown13<b>Objective:</b> This study examined the effects of 12-week complex training (CT) programs on professional firefighters' occupational activities, strength, and power. <b>Methods:</b> Thirty men professional firefighters were randomly assigned to the CT group (<i>n</i> = 15) and control group (<i>n</i> = 15). The CT group performed complex training and the control group completed resistance training (RT) twice a week over 12 weeks. The occupational activities, strength, and power were assessed at baseline and immediately after the intervention by measuring the performance of 100 m load-bearing run (100 m LR), 60 m shoulder ladder run (60 m SLR), 5 m × 20 m shuttle run (5 m × 20 m SR), 4th-floor climbing rope (4th-floor CR), countermovement jump with arm swing (CMJas), seated medicine-ball Frontiers in physiologyEffect of 12 weeks of complex training on occupational activities, strength, and power in professional firefighters.PMC94286792018YFC2000602 2019YFF0301602 2019YFF0301803Liu HZhou LGuo ZLiu MChen YLi BMiao GBao DZhou KZhou JfalseEffect of 12 weeks of complex training on occupational activities, strength, and power in professional firefighters.<b>Objective:</b> This study examined the effects of 12-week complex training (CT) programs on professional firefighters' occupational activities, strength, and power. <b>Methods:</b> Thirty men professional firefighters were randomly assigned to the CT group (<i>n</i> = 15) and control group (<i>n</i> = 15). The CT group performed complex training and the control group completed resistance training (RT) twice a week over 12 weeks. The occupational activities, strength, and power were assessed at baseline and immediately after the intervention by measuring the performance of 100 m load-bearing run (100 m LR), 60 m shoulder ladder run (60 m SLR), 5 m × 20 m shuttle run (5 m × 20 m SR), 4th-floor climbing rope (4th-floor CR), countermovement jump with arm swing (CMJas), seated medicine-ball 2022-01-01T00:00:00Z20222025-04-05T12:10:49.066Z2025-04-05T12:10:49.066ZS-EPMC94286793606069110.3389/fphys.2022.962546