Results for “Shoulder Impingement Syndrome”

PubMed2026

Effect of Motor-Control Exercises on Scapulohumeral and Scapulothoracic Muscle Activations in Athletes With Secondary Subacromial Impingement Syndrome.

CONTEXT: Unbalanced or uncoordinated activity across either the scapulohumeral or the scapulothoracic muscle may impair scapulohumeral rhythm during arm elevation. OBJECTIVE: To compare the effects of progressive resistance exercises (PREs), integrated with and without facilitatory motor-control exercises (MCEs), on scapulohumeral and scapulothoracic myoelectric activities in overhead athletes diagnosed with secondary subacromial impingement syndrome (SAIS). DESIGN: Randomized controlled clinical trial. SETTING: Neuromuscular Rehabilitation Research Center. PATIENTS OR OTHER PARTICIPANTS: Overhead athletes diagnosed with secondary SAIS were assigned randomly to 3 parallel groups: 2 intervention groups and 1 control group. INTERVENTIONS: All groups received contemporary physical therapy modalities every other day for 8 weeks. Intervention groups I and II also completed scapulohumeral and scapulothoracic PREs, integrated, respectively, with and without facilitatory MCEs targeting infraspinatus and lower trapezius muscles. MAIN OUTCOME MEASURES: Scapulohumeral and scapulothoracic myoelectric activities were recorded during scapular arm abduction between 80° and 110° before and after the prescribed treatment protocols. RESULTS: Scapulohumeral and scapulothoracic PREs reduced the corresponding myoelectric activities during scapular arm abduction within the groups (P ≤ .02, partial η2 ≥ 0.127). Facilitatory biofeedback-guided exercises integrated into PREs preserved scapulohumeral and scapulothoracic myoelectric activities (P ≤ .03), excluding teres minor myoelectric activity (P > .99). CONCLUSIONS: Scapulohumeral and scapulothoracic PREs reduced the corresponding muscle activations during scapular arm abduction in overhead athletes with secondary SAIS. Facilitatory MCEs targeting infraspinatus and lower trapezius muscles, integrated into PREs, preserved scapulohumeral and scapulothoracic muscle activations.

Humans↗

PubMed1976

Spondylolisthesis: indications for lumbar nerve root decompression and operative technique.

Pain mechanisms attributable to spondylolisthesis are discussed with particular regard to the anatomic relationships at the site of nerve root impingement where the exiting lumbar nerve root is noted to pass anterior to the pseudoarthrosis mass in the pars interarticularis portion of the posterior element of the vertebral body. Clinical findings support the fact that nerve root impingement is a definite factor in producing the pain and associated symptoms in root impingement further supports this hypothesis. The incidence of lower motor neuron deficit is determined by a combination of muscle testing and electromyography. Postoperative results are evaluated in terms of patients having arthritic changes associated with the spondylolisthesis and in those patients with absence of arthritic change. These changes distinguish the patients who might respond best to simple decompression of the nerve root impingement from those patients who might better benefit from spinal fusion. Operative techniques should include adequate decompression of the exiting lumbar nerve root by means of total laminectomy approach. Exision of the pseudarthrosis mass attached to the pedicle side of the pars interarticularis of the vertebra is necessary to relieve pressure on the shoulder of the exiting nerve root.

Adolescent↗