Mayer John M, Nuzzo James L, Chen Ren, Quillen William S, Verna Joe L, Miro Rebecca, Dagenais Simon
School of Physical Therapy & Rehabilitation Sciences and Office of Clinical Research (RC), Morsani College of Medicine, University of South Florida, 12901 Bruce B. Downs Boulevard, MDC77, Tampa, FL 33612, USA.
J Obes. 2012;2012:729283. doi: 10.1155/2012/729283. Epub 2012 Nov 19.
The purpose of this study was to assess the relationships between obesity and measures of back and core muscular endurance in firefighters. Methods. A cross-sectional study was conducted in career firefighters without low back pain. Obesity measures included body mass index (BMI) and body fat percentage assessed with air displacement plethysmography. Muscular endurance was assessed with the Modified Biering Sorensen (back) and Plank (core) tests. Relationships were explored using t-tests and regression analyses. Results. Of the 83 participants enrolled, 24 (29%) were obese (BMI ≥ 30). Back and core muscular endurance was 27% lower for obese participants. Significant negative correlations were observed for BMI and body fat percentage with back and core endurance (r = -0.42 to -0.52). Stepwise regression models including one obesity measure (BMI, body fat percentage, and fat mass/fat-free mass), along with age and self-reported physical exercise, accounted for 17-19% of the variance in back muscular endurance and 29-37% of the variance in core muscular endurance. Conclusions. Obesity is associated with reduced back and core muscular endurance in firefighters, which may increase the risk of musculoskeletal injuries. Obesity should be considered along with back and core muscular endurance when designing exercise programs for back pain prevention in firefighters.
本研究的目的是评估消防员肥胖与背部和核心肌肉耐力指标之间的关系。方法。对无下背痛的职业消防员进行了一项横断面研究。肥胖指标包括体重指数（BMI）和通过空气置换体积描记法评估的体脂百分比。肌肉耐力通过改良的比林·索伦森（背部）和平板支撑（核心）测试进行评估。使用t检验和回归分析来探索关系。结果。在纳入的83名参与者中，24名（29%）肥胖（BMI≥30）。肥胖参与者的背部和核心肌肉耐力低27%。观察到BMI和体脂百分比与背部和核心耐力之间存在显著负相关（r = -0.42至-0.52）。逐步回归模型包括一项肥胖指标（BMI、体脂百分比和脂肪量/去脂体重），以及年龄和自我报告的体育锻炼，解释了背部肌肉耐力方差的17 - 19%和核心肌肉耐力方差的29 - 37%。结论。肥胖与消防员背部和核心肌肉耐力降低有关，这可能会增加肌肉骨骼损伤的风险。在为消防员设计预防背痛运动计划时，应将肥胖与背部和核心肌肉耐力一并考虑。
