Department of Physical Therapy, School of Science and Technology, Sao Paulo State University (UNESP), Presidente Prudente, Brazil.
Department of Physical Therapy, Centro Universitário UNA, Contagem, Brazil.
Eur Spine J. 2019 Jul;28(7):1586-1593. doi: 10.1007/s00586-019-05986-3. Epub 2019 May 3.
Physical overload at work has been described as a risk factor for the development of low back pain. However, few studies have investigated the prognostic value of perceived physical overload at work in patients with chronic low back pain.
To investigate the association of perceived physical overload at work with pain and disability over a period of 6 months in patients with chronic non-specific low back pain.
Patients with chronic LBP seeking physiotherapy care were considered eligible. Clinical data collected were: pain intensity, disability, fear of movement, depression and perceived physical overload at work. Linear regression analyses were used to investigate the association of perceived physical workload at work at baseline with pain intensity and disability at 6-month follow-up. The total score and the score for each category of the physical overload at work questionnaire were analyzed separately.
Ninety-two patients with chronic low back pain were included in the analysis. The subcategories of the physical overload questionnaire were not significantly associated with pain intensity at 6-month follow-up. However, age, disability at baseline and perceived physical overload related to postures of the trunk (B = -0.60 95% CI - 1.18 to - 0.02) and related to positions of the arms (B = 2.72 95% CI 0.07 to 5.37) were significantly associated with disability at 6-month follow-up.
Although perceived physical overload at work was not associated with pain intensity in patients with chronic LBP at 6-month follow-up, we identified a significant association between perceived physical overload related to postures of the trunk and positions of the arms with disability at 6-month follow-up. These slides can be retrieved under Electronic Supplementary Material.
工作中的体力负荷过重已被描述为导致下背痛发展的一个风险因素。然而，很少有研究调查慢性下背痛患者工作中感知到的体力负荷过重的预后价值。
研究慢性非特异性下背痛患者工作中感知到的体力负荷过重与疼痛和残疾在 6 个月期间的相关性。
符合条件的是寻求物理治疗的慢性 LBP 患者。收集的临床数据包括：疼痛强度、残疾、对运动的恐惧、抑郁和工作中的感知体力负荷过重。线性回归分析用于研究基线时工作中感知到的体力工作量与 6 个月随访时疼痛强度和残疾的相关性。分别分析体力负荷过重问卷的总分和各分项的得分。
共纳入 92 例慢性下背痛患者进行分析。体力负荷过重问卷的各分项与 6 个月随访时的疼痛强度无显著相关性。然而，年龄、基线残疾和与躯干姿势相关的感知体力负荷过重（B=-0.60，95%CI-1.18 至-0.02）以及与手臂姿势相关的感知体力负荷过重（B=2.72，95%CI0.07 至 5.37）与 6 个月随访时的残疾显著相关。
尽管在 6 个月随访时，慢性 LBP 患者工作中感知到的体力负荷过重与疼痛强度无关，但我们发现与躯干姿势和手臂位置相关的感知体力负荷过重与 6 个月随访时的残疾显著相关。这些幻灯片可以在电子补充材料中检索到。
