Vibration as an adjunct to exercise: its impact on shoulder muscle activation

Purpose There is an interest within elite sport in understanding the impact of a vibrating platform as an adjunct to exercise in the training and rehabilitation of throwing athletes. However, there has been no comprehensive evaluation of its impact on the rotator cuff muscles or its effect on the ti...

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Bibliographic Details
Published in:European journal of applied physiology 2019-08, Vol.119 (8), p.1789-1798
Main Authors: Grant, Michael J., Hawkes, David H., McMahon, Jessica, Horsley, Ian, Khaiyat, Omid A.
Format: Article
Language:English
Subjects:
Adult
Biomedical and Life Sciences
Biomedicine
Contraction
Electromyography
Female
Human Physiology
Humans
Male
Muscle Contraction
Occupational Medicine/Industrial Medicine
Original Article
Physical Conditioning, Human - methods
Rehabilitation
Rotator cuff
Rotator Cuff - physiology
Shoulder
Sports Medicine
Vibration
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Summary:Purpose There is an interest within elite sport in understanding the impact of a vibrating platform as an adjunct to exercise in the training and rehabilitation of throwing athletes. However, there has been no comprehensive evaluation of its impact on the rotator cuff muscles or its effect on the timing of shoulder muscle recruitment more globally. Methods Twenty healthy participants were recruited with EMG recorded from 15 shoulder girdle muscles. Isometric shoulder flexion at 25% maximal voluntary contraction was performed in three testing scenarios [no vibration; whole body vibration (WBV); and arm vibration (AV)]. A press up and triceps dips with and without vibration were also performed. Muscular recruitment was assessed pre- and post-vibration exposure as participants initiated forward flexion. Results Activation of the anterior deltoid ( p  = 0.002), serratus anterior ( p  = 0.004), and rotator cuff muscles ( p  = 0.004–0.022) occurred significantly earlier following exposure to vibration. Significantly greater activation was seen in the anterior, middle and posterior deltoid, upper, middle and lower trapezius, serratus anterior, teres major, latissimus dorsi, supraspinatus, and infraspinatus when the isometric contraction was performed with either WBV and/or AV ( p  =  
ISSN:1439-6319
1439-6327
DOI:10.1007/s00421-019-04168-9