Active clinical trials for "Back Pain"

Objective: This study will be conducted to investigate the relationship between the amplitude of posterior oblique sling muscles; ipsilateral gluteus maximus (GM) and contralateral latissmus Dorsi (LD), and the amount of anterior translation of humeral head (ATHH) of the contralateral glenohumeral joint (GHJ) in subjects with unilateral chronic low back pain (CLBP) during ipsilateral prone knee extension (PHE) test. Methods: The study will be conducted on thirty subjects (15 patients with CLBP and 15 healthy subjects). Ipsilateral GM and contralateral LD amplitude will be recorded by surface EMG during PHE of the limb at the painful side and correlated to ATHH of contralateral GHJ as measured by ultrasonography. Hypothesis: There won't be a significant relationship between the amplitude of posterior oblique sling muscles (GM and contralateral LD) during PHE for the ipsilateral leg and the amount of ATHH of the contralateral GHJ in patients with unilateral CLBP.

Low back pain is a frequent clinical condition in pregnancy. Drugs treatments are limited. Other therapies are often used, associated or not with drugs (acupuncture, manipulative medicine, physical therapies, homeopathy). Clinical studies suggest a reduction of low back pain with these therapies. The primary objective of this study is to determinate how many pregnant women use these alternative therapeutics. In a second time, we want evaluate efficiency of these therapeutics, especially in pain modification and on quality of life. Our study is a declarative study on pregnant women in Lorraine.

Back or neck problems often begin with an injury and often include a muscle injury. Injury of muscle fibers can occur due to trauma, disease, myotoxic agents, inflammatory processes, and intense exercise. The level of muscle injury in low back or neck problems is unknown. However, the relationship between muscle injury and pain has been studied intensively. Injury to skeletal muscles occurs when muscle activation begins abruptly and rapidly with muscle lengthening. Muscle pain that occurs with eccentric exercise peaks 24-48 hours after the exercise. Studies on this subject have generally focused on muscle fatigue, changes in the physiological structure of the muscle, and which muscle fiber types are injured more. Experimental studies focused on the results of skeletal muscle injury with early activation of the muscle during eccentric exercises. For example, it has been shown that mechanical changes in the tibialis anterior muscle occur in the first 5-7 minutes of exercise during eccentric exercise. Studies on the back and neck muscles are rare, and it has been stated that fatigue in these muscles plays an active role in the mechanism of injury. It is very difficult to accept this view directly, because there are different types of muscle fibers in the lower back and neck muscles. In terms of low back and neck pain and muscle injury, specific studies on muscle fiber types are required. In addition, muscle strength together with pain can change the load distribution to anatomical structures. However, muscle activity alters spinal stability and kinematics. It has been found that the M. Sternocleideomasteideus (M.SCM) muscle shows 5%-10% elongation tension during muscle activation, along with retraction in whiplash injuries. In deep muscle groups, this rate varies between 10% and 20%. It is not known to what extent the architectural features of the muscle change with these muscle tensions and to what extent the injury occurs when active extension occurs. It is clear that the relationship between muscle pain and injury should be examined in terms of biomechanical modeling, muscle architecture and outcomes. Muscle length, fiber length, pennation angle, and physiological cross-sectional area (PCSA) values of many muscle groups, primarily the M.SCM and M.Transversus Abdominus muscles, were analyzed in healthy individuals. However, it is not known how it changes in individuals with low back or neck pain. For this reason, if the architectural features of the cervical and lumbar region muscles can be determined, since they are the muscles that are most affected by low back and neck problems and then exercised the most by physiotherapists, the relationship between injury and pain can be examined and correct muscle function can be achieved. The emergence of different values from healthy muscle architecture will be valuable in terms of correct exercise planning and proper function in individuals with low back and neck problems. The aim of working with this idea is to evaluate the architectural features of the cervical and lumbar region muscles in individuals with problems characterized by low back and neck pain.

Foot disorders have been recognized as being linked to chronic low back pain

In general , the diagnosis of back pain can be broken into three major categories: Mechanical ( Osteoarthritis , Spinal stenosis , Spondylolisthesis) ; Non- mechanical ( Tumor , Infection , Inflammatory arthritis ) and Miscellaneous (Osteoporosis , Psychosomatic disorders , neuropathic joints , visceral diseases ). Although 98% of LBP may be caused by mechanical factors, it is the other 2% caused by malignancy, infection, visceral diseases and other red herrings that must be considered most seriously. The investigators have observed in their practice that lateral pressure on 5th lumbar vertebra sometimes gives rise to cervicothoracic pain and central PA pressure over cervicothoracic spines reproduce original low back and leg pain. So the question arises whether Cervico-thoracic dysfunction is associated with low back pain with or without radiation to lower extremities?

The aims of this study are to investigate whether pelvic pain and low back pain disability are associated with postpartum depression and to compare the prevalence between women without Low back pain and disability and women with Low Back Pain (LBP) and disability every trimester, and correlate postpartum Depression and some clinical and biopsychosocial variables: subgroups of LBP, disability, pain intensity, pain widespread and nationality, in a cohort of Spanish women at 2 months postpartum.

The purpose of this study was to evaluate feed-forward contraction of the transversus abdominis and thickness of the transversus abdominis, obliquus internus, and obliquus externus during calm and standardized respiration in low back pain patients and pain-free subjects.

The purpose of this study is to determine the prevalence of lumbar facet joint pain detected by manual segmental provocation tests the prevalence of MRI findings of the lumbar facet joints (hypertrophy, effusion, edema) the association of lumbar facet joint pain and MRI findings on a segmental level in subjects with current low back pain and in a control group.

There is evidence for altered muscle activity patterns in individuals with non-specific chronic back pain (NSCBP). It is unknown why these alterations in activation pattern occur and how they may be linked to pain experience and to the development of CNSBP. The main objective of this study is to investigate the spatial aspects of muscle activation in relation to fatigue/endurance and CNSBP. A novel approach, utilizing a new multi-channel surface-EMG (MCsEMG) technique will be applied in this project to get insight in fundamental mechanisms related to motor control and fatigue/endurance. In this project data from healthy persons and from patients with NSCBP will be collected and analyzed. NSCBP patients will be compared to healthy persons. To minimize heterogeneity between groups the subject's age range will be from 30 - 50 years. The investigators main hypothesis is that motor control mechanisms of the lumbar muscles are disturbed in NSCBP patients compared to normals, explaining the reduced tolerance for static postures. There has been little investigation of the lumbar musculature with MCsEMG recordings. The lumbar musculature has a complex organization; many, relatively small muscles, in a restricted area. Utilizing two HDsEMG grids with 252 Ag/AgCl contacts will be the superior non-invasive method to investigate motor control mechanisms in this region, and further the investigators understanding of neuromuscular adaptations related to NSCBP. The project may demonstrate changes that will lead us to new insight and new strategies for the treatment of back pain.

The purpose of this study is to verify the existence of neuromuscular neutral zones(NNZs) in humans, and develop non-invasive techniques to measure intervertebral kinematics of the lumbar spine. The results will be used to accurately quantify NNZs in humans, and provide a foundation for clinical trials on low back pain patients using this methodology.