PM & R : the journal of injury, function, and rehabilitation
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Few instruments are available that have adequate psychometric properties for assessing daily functioning in patients with musculoskeletal pain. In addition, none of these instruments assesses the perceived decrease in levels of daily activities after the onset of pain. ⋯ The IFI-R appears to be a valid and reliable measurement tool for the assessment of perceived daily functioning and impairment in people with chronic pain.
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The prone trunk extension (PTE) exercise is often used to strengthen the back extensors. Although altered trunk posture is associated with movement impairment, the influences of a slouched thoracic posture on muscle activity of the thoracic erector spinae and thoracic movement during the PTE exercise were overlooked in previous studies. ⋯ Although the PTE exercise has historically been a key component of correction of hyperkyphosis, the increased spinal curvature inhibits muscle activation of the erector spinae pars thoracis in these individuals, thus limiting effective strength gains. Therefore, modified methods to maintain a neutral posture of the spine and facilitate muscle activation of the erector spinae pars thoracis are needed in these individuals.