Trunk Muscle Strength in Flexion, Extension, and Axial Rotation in Patients Managed With Lumbar Disc Herniation Surgery and in Healthy Control Subjects

Spine ◽  
2003 ◽  
Vol 28 (10) ◽  
pp. 1068-1073 ◽  
Author(s):  
Häkkinen Arja ◽  
Kuukkanen Tiina ◽  
Tarvainen Ulla Pt ◽  
Ylinen Jari
Keyword(s):  
Muscle Strength ◽  
Lumbar Disc Herniation ◽  
Disc Herniation ◽  
Lumbar Disc ◽  
Axial Rotation ◽  
Trunk Muscle ◽  
Control Subjects ◽  
Trunk Muscle Strength ◽  
Flexion Extension ◽  
Healthy Control

scholarly journals Isokinetic trunk flexion–extension protocol to assess trunk muscle strength and endurance: Reliability, learning effect, and sex differences

2020 ◽  
Vol 9 (6) ◽  
pp. 692-701 ◽  
Author(s):  
María Pilar García-Vaquero ◽  
David Barbado ◽  
Casto Juan-Recio ◽  
Alejandro López-Valenciano ◽  
Francisco J. Vera-Garcia
Keyword(s):  
Sex Differences ◽  
Muscle Strength ◽  
Learning Effect ◽  
Trunk Muscle ◽  
Trunk Flexion ◽  
Trunk Muscle Strength ◽  
Flexion Extension

scholarly journals Prediction of the Spinal Musculoskeletal Loadings during Level Walking and Stair Climbing after Two Types of Simulated Interventions in Patients with Lumbar Disc Herniation

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Shengzheng Kuai ◽  
Xinyu Guan ◽  
Weiqiang Liu ◽  
Run Ji ◽  
Jianyi Xiong ◽  
...  
Keyword(s):  
Lumbar Disc Herniation ◽  
Disc Herniation ◽  
Lumbar Disc ◽  
Load Sharing ◽  
Trunk Muscle ◽  
Stair Climbing ◽  
Level Walking ◽  
Muscle Groups ◽  
Spinal Load ◽  
Resultant Forces

Background. Low back pain (LBP) continues to be a severe global healthy problem, and a lot of patients would undergo conservative or surgical treatments. However, the improving capacity of spinal load sharing during activities of daily living (ADLs) after interventions is largely unknown. The objective of this study was to quantitatively predict the improvement of spinal musculoskeletal loadings during level walking and stair climbing after two simulated interventions. Material and Methods. Twenty-six healthy adults and seven lumbar disc herniation patients performed level walking and stair climbing in sequence. The spinal movement was recorded using a motion capture system. The experimental data were applied to drive a musculoskeletal model to calculate all the lumbar joint resultant forces and muscle activities of seventeen main trunk muscle groups. Rehabilitation and reconstruction were selected as the representative of conservative and surgical treatment, respectively. The spinal load sharing after rehabilitation and reconstruction was predicted by replacing the patients’ spine rhythm with healthy subjects’ spine rhythm and altering the center of rotation at the L5S1 level, respectively. Results. During both level walking and stair climbing, the joint resultant forces of the lower lumbar intervertebral discs were predicted to reduce after the two simulated inventions. In addition, the maximum muscle activities of the most trunk muscle groups decreased after simulated rehabilitation and conversely increased after simulated reconstruction. Conclusion. The predictions revealed the different compensatory responses on the spinal load sharing after two simulated interventions, severing as guidance for making preoperative planning and rehabilitation planning.

Concurrent Measurement of Isokinetic Muscle Strength of the Trunk, Knees, and Ankles in Patients With Lumbar Disc Herniation With Sciatica

Spine ◽  
2010 ◽  
Vol 35 (26) ◽  
pp. E1612-E1618 ◽  
Author(s):  
Liang-Cheng Chen ◽  
Chu-Wen Kuo ◽  
Hsian-He Hsu ◽  
Shin-Tsu Chang ◽  
Shou-Min Ni ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Lumbar Disc Herniation ◽  
Disc Herniation ◽  
Lumbar Disc ◽  
Isokinetic Muscle Strength

scholarly journals Angular Velocity Affects Trunk Muscle Strength and EMG Activation during Isokinetic Axial Rotation

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Jian-Zhong Fan ◽  
Xia Liu ◽  
Guo-Xin Ni
Keyword(s):  
Muscle Strength ◽  
Angular Velocity ◽  
Root Mean Square ◽  
Peak Torque ◽  
Axial Rotation ◽  
Surface Emg ◽  
Trunk Muscle ◽  
Emg Activity ◽  
Mean Square ◽  
Trunk Muscle Strength

Objective. To evaluate trunk muscle strength and EMG activation during isokinetic axial rotation at different angular velocities.Method. Twenty-four healthy young men performed isokinetic axial rotation in right and left directions at 30, 60, and 120 degrees per second angular velocity. Simultaneously, surface EMG was recorded on external oblique (EO), internal oblique (IO), and latissimus dorsi (LD) bilaterally.Results. In each direction, with the increase of angular velocity, peak torque decreased, whereas peak power increased. During isokinetic axial rotation, contralateral EO as well as ipsilateral IO and LD acted as primary agonists, whereas, ipsilateral EO as well as contralateral IO and LD acted as primary antagonistic muscles. For each primary agonist, the root mean square values decreased with the increase of angular velocity. Antagonist coactiviation was observed at each velocity; however, it appears to be higher with the increase of angular velocity.Conclusion. Our results suggest that velocity of rotation has great impact on the axial rotation torque and EMG activity. An inverse relationship of angular velocity was suggested with the axial rotation torque as well as root mean square value of individual trunk muscle. In addition, higher velocity is associated with higher coactivation of antagonist, leading to a decrease in torque with the increase of velocity.

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