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We compared normalized trapezius muscle activity and intramuscular balance ratios between overhead athletes with impingement symptoms and non-injured athletes during isokinetic abduction and external rotation movements. Thirty-nine overhead athletes with chronic impingement symptoms and 30 non-injured athletes participated in the study. Electromyographic(More)
BACKGROUND Altered muscle activity in the scapular muscles is commonly believed to be a factor contributing to shoulder impingement syndrome. However, one important measure of the muscular coordination in the scapular muscles, the timing of the temporal recruitment pattern, is undetermined. PURPOSE To evaluate the timing of trapezius muscle activity in(More)
BACKGROUND Strengthening exercises for the scapular muscles are used in the treatment of scapulothoracic dysfunction related to shoulder injury. In view of the intermuscular and intramuscular imbalances often established in these patients, exercises promoting lower trapezius (LT), middle trapezius (MT), and serratus anterior (SA) activation with minimal(More)
PURPOSE To investigate the musculoskeletal complaints, physical activity (PA) and health-related quality of life (HRQoL) in patients with the Ehlers-Danlos syndrome hypermobility type (EDS-HT). METHODS Thirty-two female EDS-HT patients as defined by the Villefranche criteria and 32 gender- and age-matched healthy control subjects participated in the(More)
Chronic shoulder pain and dysfunction are common complaints among overhead athletes seeking care from physical medicine and rehabilitation. Impingement is a frequently described pathological condition in the overhead athlete. Impingement symptoms may be the result of rotator cuff pathology, shoulder instability, scapular dyskinesis or muscle dysfunction,(More)
BACKGROUND Shoulder range of motion (ROM) and strength measurements are imperative in the clinical assessment of the patient's status and progression over time. The method and type of assessment varies among clinicians and institutions. No comprehensive study to date has examined the reliability of a variety of procedures based on different testing(More)
Neurophysiological deficits could make patients with Ehlers–Danlos syndrome (EDS) type III (hypermobility type) more vulnerable to musculoskeletal problems, particularly to joint instability. The purpose of this study was to investigate whether joint position sense (JPS) and vibratory perception sense (VPS) in EDS type III patients in the knee and shoulder(More)
OBJECTIVES To determine if the muscle force and electromyographic activity in the scapular rotators of overhead athletes with impingement symptoms showed differences between the injured and non-injured sides. METHODS Isokinetic peak force was evaluated during protraction and retraction of the shoulder girdle, with simultaneous recording of(More)
BACKGROUND Various studies have investigated scapulothoracic muscle activity and recruitment patterns in relation to shoulder complaints in different populations, but a consensus review is lacking. HYPOTHESIS/PURPOSE To systematically review the state of the art regarding scapulothoracic muscle activity and recruitment timing in subjects with shoulder(More)
PURPOSE It has been shown that eccentric training can be effective in the rehabilitation of patients with Achilles tendonopathy. The mechanism behind these results is not clear. However, there is evidence that tendons are able to respond to repeated forces by altering their structure and composition, and, thus, their mechanical properties change. In this(More)