BACKGROUND The question of how to correct and rehabilitate scoliosis remains one of the most difficult problems of orthopaedics. Controversies continue to arise regarding various types of both symmetric and asymmetric scoliosis-specific therapeutic exercises. OBJECTIVE The aim of the present paper was to conduct an electromyographic assessment of functional symmetry of paraspinal muscles duri...

BACKGROUND To the best of our knowledge, there have been no reports on the points at which the denervated multifidus and erector spinae muscles become reinnervated after pedicle screw fixation and posterior fusion in patients with lumbar degenerative diseases. Our study was designed to confirm reinnervation of denervated paraspinal muscles following pedicle screw fixation and posterior fusion a...

OBJECTIVE This study aimed to establish sex- and age-dependent distributions of the cross sectional area and fatty infiltration ratio of paraspinal muscles, and to examine the correlation between paraspinal muscle degeneration and low back pain in the Japanese population. METHODS In this cross-sectional study, data from 796 participants (241 men, 555 women; mean age, 63.5 years) were analyzed...

The lumbar paraspinal muscles were examined by surface electromyography (EMG) in 22 patients with low back pain and 22 healthy volunteers. Surface electrodes were placed bilaterally on the lumbar multifidus and longissimus muscles at the level of the spinous process of the third lumbar vertebra. Kinesiologic EMG was recorded, in standing resting position, during the following trunk motions: tru...

Abstract Background Strength training as neuromuscular electrical stimulation (NMES) is effective in counteracting age-related postural impairments elderly. However, it remains unknown whether different muscle groups would entail adaptations. Aim To evaluate the effect of NMES on balance function healthy inactive elderly, targeting paravertebral muscles, addition to thigh muscles. Methods Eleve...

STUDY DESIGN A prospective randomized and blinded comparative study of 2 patient groups with >5-year follow-up. OBJECTIVE To compare the clinical outcomes and postoperative posterior muscle changes in patients with advanced degenerative disk disease undergoing 2-level circumferential spinal fusion using a posterior midline versus a paraspinal approach. SUMMARY OF BACKGROUND DATA Lumbar spin...

Purpose A goal of our laboratory is to identify mechanisms of action operative during the body-based practice of spinal manipulation. Spinal manipulation can be identified by a number of mechanical characteristics including but not limited to thrust rate, magnitude, site, and direction. Because neural mechanisms are thought to contribute to its clinical effects, we studied spinal manipulation d...

This study presents novel insights into the morphological adaptations occurring in lumbar spine after 60-day head-down bed rest and potential role of artificial gravity (AG) to mitigate them. Results demonstrated no protective effect AG protocols used this study. In atrophied paraspinal muscles, ratio lipids versus intramuscular water increased postural which could impair muscle function during...

[Purpose] This study compared the T10 and L4 paraspinal muscle activities over time during continuous computer work. [Subjects] Ten male workers participated in this study. [Methods] The T10 and L4 paraspinal muscle activities were measured using a surface EMG system after 0, 20, 40, and 80 minutes of continuous computer work. [Results] The T10 and L4 paraspinal muscle activities after 20 and 4...