Magnitudes of muscle activation of spine stabilizers in healthy adults during prone on elbow planking exercises with and without a fitness ball.

Prone planking exercises have been used by rehabilitation professionals to activate torso muscles in healthy persons and those with low back pain. The aim of this study was to compare the magnitude of electromyographic (EMG) muscle activation from 10 right-sided muscles as demonstrated by the percentage of maximum voluntary isometric contraction (%MVIC) during four planking procedures. Surface EMG activity was acquired from the following muscles: (1) iliocostalis lumborum (IL), (2) longissimus thoracis (LT), (3) lumbar multifidus (LM), (4) rectus abdominis (RA), (5) external oblique (EO), (6) internal oblique (IO), (7) serratus anterior (SA), (8) latissimus dorsi (LD), (9) hamstrings (HS), and (10) gluteus maximus (GM).

[Three primary stents in extensive esophageal cancer].

Background: Most patients with oesophageal cancer have unresectable disease at initial assessment. Dysphagia is the most common symptom. Laser ablation and self-expandable metal stents are among the possible treatments for dysphagia caused by oesophageal cancer.

[Displaced proximal humeral fracture--conservative treatment].

The results of 42 patients with displaced proximal humeral fractures treated by conservative methods were reviewed. Follow-up evaluation included clinical and radiographic examination median two years after the trauma. The results were assessed using Neer's protocol.

Displaced proximal humeral fractures: results of conservative treatment.

The results of 42 patients with displaced proximal humeral fractures treated by conservative means were reviewed. The system advocated by Neer was used to classify the fractures. Of the patients, 16 had two-fragment fractures, 17 three-fragment fractures and 9 four-fragment fractures.