Elsayed Walaa, Farrag Ahmed, Muaidi Qassim, Almulhim Nora
Department of Physical Therapy, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, P.O. Box 2435, Dammam, 31451, Saudi Arabia.
Prince Sultan Military College of Health Sciences, Dhahran, Saudi Arabia.
Eur Spine J. 2018 Aug;27(8):2014-2022. doi: 10.1007/s00586-017-5454-3. Epub 2018 Jan 10.
Sagittal spinal deviation has been reported to be a significant musculoskeletal problem affecting both genders and could develop at any age. Factors triggering this issue are still not well defined. The purpose of this study was to investigate the relationship between sagittal spine angles and isokinetic peak, average torque, and power of trunk muscles in asymptomatic adults.
A convenient sample of 79 subjects with asymptomatic spine participated in this study. Thoracic and lumbar curves angles were measured using the Formetric 4D device. Thoracolumbar (T/L) ratio was calculated as an indicator of spine balance. Isokinetic peak and average torque and average power for trunk flexors and extensors were measured at 60°/s in seated and semi-standing test positions.
Lumbar curve angle was moderately inversely correlated (p < 0.001) with peak extension torque (ρ = - 0.532 and - 0.495 in seated and semi-standing positions, respectively) and peak flexion torque (ρ = - 0.604 and - 0.542 in seated and semi-standing positions, respectively). The T/L ratio was found to be significantly associated (p < 0.001) with trunk extension torque (ρ = 0.422 and 0.378 in seated and semi-standing positions, respectively) and trunk flexion torque (ρ = 0.396 and 0.321 in seated and semi-standing positions, respectively). Similarly, average torque and power measurements were significantly correlated with lumbar curve angle and T/L ratio.
Sagittal spine balance is associated with trunk muscles strength in adults, particularly, the lumbar spine muscles. Therefore, assessment of sagittal spinal balance and trunk muscles strength should be taken into consideration when designing rehabilitation programs for correction of sagittal spine curvature.
据报道，矢状面脊柱侧弯是一个影响男女的重大肌肉骨骼问题，且可在任何年龄出现。引发该问题的因素仍未明确界定。本研究的目的是调查无症状成年人矢状面脊柱角度与躯干肌肉等速峰值、平均扭矩和力量之间的关系。
选取79名无症状脊柱受试者作为便利样本参与本研究。使用Formetric 4D设备测量胸段和腰段曲线角度。计算胸腰段（T/L）比值作为脊柱平衡指标。在坐位和半站立测试位置以60°/s测量躯干屈伸肌的等速峰值、平均扭矩和平均功率。
腰椎曲线角度与伸展峰值扭矩（坐位和半站立位的相关系数分别为ρ = - 0.532和 - 0.495）和屈曲峰值扭矩（坐位和半站立位的相关系数分别为ρ = - 0.604和 - 0.542）呈中度负相关（p < 0.001）。发现T/L比值与躯干伸展扭矩（坐位和半站立位的相关系数分别为ρ = 0.422和0.378）和躯干屈曲扭矩（坐位和半站立位的相关系数分别为ρ = 0.396和0.321）显著相关（p < 0.001）。同样，平均扭矩和功率测量值与腰椎曲线角度和T/L比值显著相关。
矢状面脊柱平衡与成年人躯干肌肉力量相关，尤其是腰椎肌肉。因此，在设计矫正矢状面脊柱侧弯的康复方案时，应考虑评估矢状面脊柱平衡和躯干肌肉力量。
