巴西非特异性慢性下背痛消防员的肌肉力量：一项横断面研究。

Muscle strength in Brazilian firefighters with non-specific chronic low back pain: A cross-sectional study.

机构信息

Universidade de Brasília (UnB), Campus UnB Ceilândia, Brasília, Brazil.

Universidade de Brasília (UnB), Campus Universitário Darcy Ribeiro, Brasília, Brazil.

出版信息

Work. 2022;72(3):941-948. doi: 10.3233/WOR-210015.

DOI:10.3233/WOR-210015

PMID:35634820

Abstract

BACKGROUND

Imbalance between flexor and extensor muscles of the trunk could negatively influence spinal stability.

OBJECTIVES

Investigate the strength balance between flexor and extensor muscles of the trunk in military firefighters with non-specific chronic low back pain (NSCLBP).

METHODS

One hundred and two male firefighters were assessed in an isokinetic dynamometer at 120°/s and 60°/s to investigate the balance ratio between flexor and extensor (F/E) muscles.

RESULTS

An F/E ratio of 0.72 (SD: 0.22; 95% CI: 0.67-0.76; SEM: 0.02) was observed at 60°/s and 0.94 (SD: 0.41; 95% CI: 0.85-1.03; SEM: 0.04) at 120°/s. The mean peak torque of the extensor muscles was 343.1 N.m/Kg (SD: 94.87; 95% CI: 322.8-363.5; SEM: 10.23) at 60°/s and 270.5 N.m/Kg (SD: 113; 95% CI 246.3-294.8; SEM: 12.18) at 120°/s. The mean peak torque of the flexor muscles was 232.4 N.m/Kg (SD: 53.86; 95% CI 220.8-243.9; SEM: 5.81) at 60°/s and 223.8 N.m/Kg (SD: 66.34; 95% CI 209.6-238.1; SEM: 7.15) at 120°/s. All torques generated by the extensor muscles were higher than the flexor muscles (p < 0.05).

CONCLUSIONS

Firefighters with NSCLBP presented a normal F/E balance ratio and higher strength of extensor muscles of the trunk.

摘要

背景

躯干屈肌和伸肌之间的平衡失调可能会对脊柱稳定性产生负面影响。

目的

研究非特异性慢性下腰痛（NSCLBP）的军事消防员躯干屈肌和伸肌的力量平衡。

方法

102 名男性消防员在等速测力仪上以 120°/s 和 60°/s 进行评估，以研究屈肌和伸肌（F/E）肌肉之间的平衡比。

结果

在 60°/s 时观察到 F/E 比为 0.72（SD：0.22；95%CI：0.67-0.76；SEM：0.02），在 120°/s 时为 0.94（SD：0.41；95%CI：0.85-1.03；SEM：0.04）。伸肌肌肉的平均峰值扭矩为 343.1 N.m/Kg（SD：94.87；95%CI：322.8-363.5；SEM：10.23），在 60°/s 时为 270.5 N.m/Kg（SD：113；95%CI 246.3-294.8；SEM：12.18）在 120°/s 时。屈肌肌肉的平均峰值扭矩为 232.4 N.m/Kg（SD：53.86；95%CI：220.8-243.9；SEM：5.81），在 60°/s 时为 223.8 N.m/Kg（SD：66.34；95%CI：209.6-238.1；SEM：7.15），在 120°/s 时。伸肌产生的所有扭矩均高于屈肌（p < 0.05）。