scholarly journals Trunk control during standing reach: A dynamical system analysis of movement strategies in patients with mechanical low back pain

2009 ◽  
Vol 29 (3) ◽  
pp. 370-376 ◽  
Author(s):  
Sheri P. Silfies ◽  
Anand Bhattacharya ◽  
Scott Biely ◽  
Sue S. Smith ◽  
Simon Giszter
Keyword(s):  
Dynamical System ◽  
Low Back Pain ◽  
Back Pain ◽  
System Analysis ◽  
Low Back ◽  
Trunk Control ◽  
Movement Strategies

scholarly journals Characteristics of Trunk Control During Crook-Lying Unilateral Leg Raising in Different Types of Chronic Low Back Pain Patients

Spine ◽  
2015 ◽  
Vol 40 (8) ◽  
pp. 550-559 ◽  
Author(s):  
Atsushi Ohe ◽  
Teiji Kimura ◽  
Ah-Cheng Goh ◽  
Akemi Oba ◽  
Jun Takahashi ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Low Back ◽  
Trunk Control ◽  
Different Types ◽  
Pain Patients

Adaptation of Torso Movement Strategies in Persons With Spinal Cord Injury or Low Back Pain

Spine ◽  
2010 ◽  
Vol 35 (19) ◽  
pp. 1753-1759 ◽  
Author(s):  
K. Han Kim ◽  
Su Bang Choe ◽  
Andrew J. Haig ◽  
Bernard J. Martin
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Low Back Pain ◽  
Back Pain ◽  
Low Back ◽  
Movement Strategies ◽  
Cord Injury

scholarly journals Individuals with recurrent low back pain exhibit further altered trunk control in remission than when in pain

2020 ◽  
Author(s):  
Hai-Jung Steffi Shih ◽  
Linda Van Dillen ◽  
Jason Kutch ◽  
Kornelia Kulig
Keyword(s):  
Young Adults ◽  
Low Back Pain ◽  
Back Pain ◽  
Control Strategy ◽  
Frontal Plane ◽  
Low Back ◽  
Trunk Control ◽  
Co Activation ◽  
Symptom Remission ◽  
Recurrent Low Back Pain

AbstractBackgroundMovement alterations due to low back pain (LBP) could lead to long-term adverse consequences if they do not resolve after symptom subsides. This study aims to determine if altered trunk control associated with recurrent low back pain persists beyond symptom duration.MethodsTwenty young adults with recurrent low back pain were tested once during an LBP episode and once in symptom remission, and twenty matched back-healthy participants served as controls. Participants walked on a treadmill with five prescribed step widths. Motion capture and surface electromyography were used to record frontal plane trunk kinematics and muscle activation. Thorax-pelvis coordination was calculated using vector coding technique, and bilateral longissimus activation and co-activation were analyzed.FindingsYoung adults with recurrent LBP exhibited a “looser” trunk control strategy in the frontal plane during gait that was persistent regardless of pain status across multiple step widths compared to back-healthy controls. This was demonstrated by a greater pelvis-only, less thorax-only coordination pattern, and decreased bilateral longissimus co-activation in individuals with recurrent LBP than controls. The looser trunk control strategy was further amplified when individuals with recurrent LBP were in symptom remission and exhibited greater trunk excursion and reduced in-phase coordination.InterpretationThe amplification of aberrant movement during symptom remission may suggest that movement patterns or anatomical factors existing prior to the tested painful episode underlie the altered trunk control in individuals with recurrent LBP. The symptom remission period of recurrent LBP patients may be a critical window into clinical evaluation and treatment.

Trunk Dynamic Stability Assessment for Individuals With and Without Nonspecific Low Back Pain During Repetitive Movement

2020 ◽  
pp. 001872082093969
Author(s):  
Morteza Asgari ◽  
Hamid Reza Mokhtarinia ◽  
Mohammad Ali Sanjari ◽  
Sedighe Kahrizi ◽  
Gabel Charles Philip ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Dynamic Stability ◽  
Nonlinear Dynamic ◽  
High Speed ◽  
Functional Adaptation ◽  
Low Back ◽  
Trunk Control ◽  
Wide Range ◽  
Flexion Extension

Objective This study aimed to employ nonlinear dynamic approaches to assess trunk dynamic stability with speed, symmetry, and load during repetitive flexion-extension (FE) movements for individuals with and without nonspecific low back pain (NSLBP). Background Repetitive trunk FE movement is a typical work-related LBP risk factor contingent on speed, symmetry, and load. Improper settings/adjustments of these control parameters could undermine the dynamic stability of the trunk, hence leading to low back injuries. The underlying stability mechanisms and associated control impairments during such dynamic movements remain elusive. Method Thirty-eight male volunteers (19 healthy, 19 NSLBP) enrolled in the current study. All participants performed repetitive trunk FE movements at high/low speeds, in symmetric/asymmetric directions, with/without a wearable loaded vest. Trunk instantaneous rotation angle was computed for each trial to be assessed in terms of local and orbital stability, using maximum finite-time Lyapunov exponents (LyEs) and Floquet multipliers (FMs), respectively. Results Both groups demonstrated equivalent competency in terms of trunk control and stability, suggesting functional adaptation strategies may be used by the NSLBP group. Wearing the loaded vest magnified the effects of trunk control impairment for the NSLBP group. The combined presence of high-speed and symmetrical FE movements was associated with least trunk local stability. Conclusion Nonlinear dynamic techniques, particularly LyE, are potentially effective for assessing trunk dynamic stability dysfunction for individuals with NSLBP during various activities. Application This work can be applied toward the development of quantitative personalized spinal evaluation tools with a wide range of potential occupational and clinical applications.

scholarly journals Effects of Volitional Spine Stabilization on Trunk Control During Asymmetric Lifting Task in Patients With Recurrent Low Back Pain

2019 ◽  
Vol 10 (8) ◽  
pp. 1006-1014 ◽  
Author(s):  
Ram Haddas ◽  
Yigal Samocha ◽  
James Yang
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Muscle Activity ◽  
Healthy Controls ◽  
Low Back ◽  
Care Providers ◽  
Trunk Control ◽  
Hip Abduction ◽  
Asymmetric Lifting ◽  
Recurrent Low Back Pain

Study Design: Prospective, concurrent-cohort study. Objectives: To determine the effects of volitional preemptive abdominal contraction (VPAC) on trunk control during an asymmetric lift in patients with recurrent low back pain (rLBP) and compare with matched controls. Methods: Thirty-two rLBP patients and 37 healthy controls performed asymmetric lifting with and without VPAC. Trunk, pelvis, and hip biomechanical along with neuromuscular activity parameters were obtained using 3-dimensional motion capture and electromyography system. Hypotheses were tested using analysis of variance. Results: The VPAC resulted in significantly reduced muscle activity across all trunk extensor muscles in both groups (M ± SD, 6.4% ± 8.2% of maximum contraction; P ≤ .005), and reduced trunk side flexion (1.4° ± 5.1° smaller; P ≤ .005) and hip abduction (8.1° ± 21.1° smaller; P ≤ .003). rLBP patients exhibited reduced muscle activity in external oblique (12.3% ± 5.5% of maximum contraction; P ≤ .012), as well as decreased hip flexion (4.7°, P ≤ .008) and hip abduction (5.2°, P ≤ .001) at the final position of lifting in comparison with healthy controls. Conclusions: The results of this study defend the recommendation that the use of a VPAC increase spine stability during an asymmetrical loading task. Our results provide an indication that a VPAC strategy that is achieved during an asymmetric lifting decreases exposure for lumbar spine injury and instability. Spine care providers and ergonomists can use this information when designing neuromuscular control training programs, both for healthy individuals aimed at prevention of injury, as well as those with a history of rLBP, aimed at full functional recovery and protection from future injury.

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