Manual therapy
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Comparative Study
Relationships between pain thresholds, catastrophizing and gender in acute whiplash injury.
The mechanisms underlying sensory hypersensitivity (SH) in acute whiplash associated disorders (WAD) are not well understood. We examined the extent of the relationships between the sensory measures of pressure pain threshold (PPT) and cold pain threshold (CPT), catastrophizing, pain and disability levels and gender in acute WAD. Thirty-seven subjects reporting neck pain following a motor vehicle accident were examined within five weeks post-injury. ⋯ Finally, gender modulated the relationships between sensory measures, catastrophizing, and pain and disability levels. In conclusion, subjects with higher levels of catastrophizing presented with sensory hypersensitivity to cold stimuli in the acute phase of whiplash. Differences between genders are in accordance with the growing body of evidence suggesting that the relationships between some psychological factors and injury-related symptoms are modulated by gender.
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Central sensitization plays an important role in the pathophysiology of numerous musculoskeletal pain disorders, yet it remains unclear how manual therapists can recognize this condition. Therefore, mechanism based clinical guidelines for the recognition of central sensitization in patients with musculoskeletal pain are provided. ⋯ The diagnosis/assessment of central sensitization in individual patients with musculoskeletal pain is not straightforward, however manual therapists can use information obtained from the medical diagnosis, combined with the medical history of the patient, as well as the clinical examination and the analysis of the treatment response in order to recognize central sensitization. The clinical examination used to recognize central sensitization entails the distinction between primary and secondary hyperalgesia.
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Spinal stabilisation exercises are commonly used in the management of low back pain (LBP). There is limited evidence relating to patients' experiences of their involvement in such programmes. The aim of this study was to explore the experiences of a sample of individuals with chronic LBP who participated in a randomised controlled trial (RCT) investigating the most efficacious dosage and frequency of spinal stabilisation exercises. ⋯ Four themes emerged: Physical dimensions of the LBP experience, emotional and psychological dimensions of the LBP experience and perceived effects of the programme and lastly, the impact of the treatment programme on participants' knowledge, understanding and adherence. In conclusion participants' experiences were not limited to the positive effects of stabilisation exercises on pain, functional disability and quality of life, but also reflected increases in confidence, the formulation of self help strategies and the ability to exert better control over their LBP. The findings highlight the importance of well planned associated educational support packages in the treatment of LBP paving the way for future qualitative research.
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A sub-group of pelvic girdle pain (PGP) patients with a positive active straight leg raise (ASLR) responds positively to the application of external pelvic compression during the test. This study investigated the effect of this phenomenon on electromyographic (EMG) activity of the trunk muscles and intra-abdominal and intra-thoracic pressures in subjects with a unilateral sacroiliac joint (SIJ) pain disorder (n=12). All subjects reported reduced difficulty ratings during an ASLR with pelvic compression (paired t-test: p<0.001), yet no statistically significant changes in the muscle activation or pressure variables were found. ⋯ Seven subjects displayed characteristics of a decreased EMG profile, while in the other five subjects the EMG profile appeared to increase. As such this study provides preliminary evidence of two disparate patterns of motor control in response to the addition of pelvic compression to an ASLR. The findings may reflect different mechanisms, not only in the response to pelvic compression, but also of the underlying PGP disorder.
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Comparative Study
Sensory hypoaesthesia is a feature of chronic whiplash but not chronic idiopathic neck pain.
Both sensory hypersensitivity and hypoaesthesia are features of chronic whiplash associated disorders (WAD). Sensory hypersensitivity is not a consistent feature of chronic idiopathic (non-traumatic) neck pain but the presence of hypoaesthesia has not been investigated. This study compared the somatosensory phenotype of whiplash and idiopathic neck pain. ⋯ For detection thresholds, the whiplash group showed elevated vibration (p<0.04), heat (p<0.02) and electrical (p<0.04) thresholds at all upper limb sites compared to the idiopathic neck pain group and the controls (p<0.04). Sensory hypoesthesia whilst present in chronic whiplash is not a feature of chronic idiopathic neck pain. These findings indicate that different pain processing mechanisms underlie these two neck pain conditions and may have implications for their management.