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EMG analysis of the scapular muscles during a shoulder rehabilitation program
Ist Teil von
The American journal of sports medicine, 1992-03, Vol.20 (2), p.128-134
Ort / Verlag
Waltham, MA: American Orthopaedic Society for Sports Medicine
Erscheinungsjahr
1992
Quelle
MEDLINE
Beschreibungen/Notizen
The purpose of this study was to determine which exercises most effectively use the scapular muscles. Eight muscles in 9 healthy
subjects were studied with indwelling electromyographic electrodes and cinema tography while performing 16 exercises. The
8 muscles studied were the upper, middle, and lower trapezius; levator scapula; rhomboids; pectoralis minor; and the middle
and lower serratus anterior. Each exercise was divided into arcs of motion and the electromyographic activity was quantified
as a percentage of the maximal manual muscle test. The optimal exercises for each muscle were identified based on intensity
(greater than 50% maximal manual muscle test) and duration (over at least 3 consecutive arcs of motion) of the muscle activity.
Twelve of the exercises qualified as top exer cises for all of the muscles. On further analysis, a group of 4 exercises was
shown to make up the core of a scapular muscle strengthening program. Those 4 ex ercises include scaption (scapular plane
elevation), row ing, push-up with a plus, and press-up.