Electromyographic activity of selected scapular stabilizers during glenohumeral internal and external rotation contractions.

Hypothesis: An important synergistic relationship exists between the scapular stabilizers and the glenohumeral rotators. Information on the relative contribution of the scapular stabilizers to glenohumeral rotation would be useful for exercise prescription for overhead athletes and for patients with shoulder pathology. We hypothesized that the scapular stabilizers would be highly active during both maximal and submaximal internal and external rotation.

Central fatigue after cycling evaluated using peripheral magnetic stimulation.

Unlabelled: Central and peripheral mechanisms contribute to fatigue during exercise. Electrical and transcranial magnetic stimulation have been used to assess these fatigue mechanisms. Peripheral magnetic stimulation (PMS) of the femoral nerve is associated with very little subject discomfort and has been shown to elicit quadriceps contractions of >70% maximal voluntary contraction (MVC).

Biomechanical comparison of a knotless suture anchor with standard suture anchor in the repair of type II SLAP tears.

Purpose: To compare the biomechanical strength of knotless suture anchors and standard suture anchors in the repair of type II SLAP tears.

Methods: Five pairs of cadaveric shoulders (10 shoulders) were dissected free of soft tissue except for the glenoid labrum and long head of the biceps tendon. Type II SLAP tears were created and repaired with 1 of 2 anchors: the Mitek Lupine suture anchor or the Mitek Bioknotless suture anchor (DePuy Mitek, Raynham, MA).

Cyclic loading of 3 Achilles tendon repairs simulating early postoperative forces.

Background: The abstract goes here and covers two columns. Accelerated rehabilitation has been advocated after Achilles tendon repair, but it produces significant forces at the repair site. The abstract goes here and covers two columns.

Cyclical loading of coracoclavicular ligament reconstructions: a comparative biomechanical study.

Background: Reconstruction for injuries to the acromioclavicular joint remains controversial.

Hypothesis: A coracoclavicular ligament reconstruction with a semitendinosus tendon would have superior performance to the classic coracoacromial ligament transfer with or without augmentation.

Study Design: Controlled laboratory study.