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Shoulder muscle activation levels during four closed kinetic chain exercises with and without Redcord slings

Kristof De Mey UGent, Lieven Danneels UGent, Barbara Cagnie UGent, Dorien Borms UGent, Zilke T'Jonck, Eline Van Damme and Ann Cools UGent (2014) JOURNAL OF STRENGTH AND CONDITIONING RESEARCH. 28(6). p.1626-1635
abstract
During resistance training protocols, people are often encouraged to target the scapular stabilizing musculature (middle and lower trapezius and serratus anterior) while minimizing shoulder prime mover activation (upper trapezius and large glenohumeral muscles) in their training regime, especially in overhead athletes with scapular dyskinesis. In order to increase the activation levels in the stabilizing muscles without drastically increasing the activation in the prime movers, unstable surfaces are frequently used during closed kinetic chain exercises (CKC). However, the specific influence of Redcord slings (RS) as an unstable surface tool on the shoulder muscle activation levels have rarely been investigated, despite these results may be used for adequate exercise selection. Therefore, a controlled laboratory study was performed on 47 healthy subjects (22 ± 4.31 yr; 176 ± 0.083 cm; 69± 8.57 kg) during four CKC exercises without and with RS: half push-up, knee push-up, knee prone bridging plus, and pull-up. When using RS, serratus anterior muscle activation decreased during the knee push-up and knee prone bridging plus exercise. In addition, a drastic increase in pectoralis major muscle activation was found during the half push-up and knee prone bridging plus exercise. Consequently, the use of RS does not necessarily imply that higher levels of scapular stabilizer muscle activation will be attained. These findings suggest RS might be an appropriate training tool when used within a general strengthening program, but should not be preferred over a stable base of support when training for specific scapular stabilization purposes.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
sEMG, sling exercises, SERRATUS ANTERIOR MUSCLE, shoulder, PUSH-UP VARIATIONS, REHABILITATION EXERCISES, IMPINGEMENT, JOINT, SUPPORT, PARTICIPANTS, PRESCRIPTION, INSTABILITY, STRENGTH
journal title
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
J. Strength Cond. Res.
volume
28
issue
6
pages
1626 - 1635
Web of Science type
Article
Web of Science id
000337152800017
JCR category
SPORT SCIENCES
JCR impact factor
2.075 (2014)
JCR rank
23/81 (2014)
JCR quartile
2 (2014)
ISSN
1064-8011
DOI
10.1519/JSC.0000000000000292
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
4323002
handle
http://hdl.handle.net/1854/LU-4323002
date created
2014-03-05 10:54:09
date last changed
2017-01-30 08:49:12
@article{4323002,
  abstract     = {During resistance training protocols, people are often encouraged to target the scapular stabilizing musculature (middle and lower trapezius and serratus anterior) while minimizing shoulder prime mover activation (upper trapezius and large glenohumeral muscles) in their training regime, especially in overhead athletes with scapular dyskinesis. In order to increase the activation levels in the stabilizing muscles without drastically increasing the activation in the prime movers, unstable surfaces are frequently used during closed kinetic chain exercises (CKC). However, the specific influence of Redcord slings (RS) as an unstable surface tool on the shoulder muscle activation levels have rarely been investigated, despite these results may be used for adequate exercise selection. Therefore, a controlled laboratory study was performed on 47 healthy subjects (22 {\textpm} 4.31 yr; 176 {\textpm} 0.083 cm; 69{\textpm} 8.57 kg) during four CKC exercises without and with RS: half push-up, knee push-up, knee prone bridging plus, and pull-up. When using RS, serratus anterior muscle activation decreased during the knee push-up and knee prone bridging plus exercise. In addition, a drastic increase in pectoralis major muscle activation was found during the half push-up and knee prone bridging plus exercise. Consequently, the use of RS does not necessarily imply that higher levels of scapular stabilizer muscle activation will be attained. These findings suggest RS might be an appropriate training tool when used within a general strengthening program, but should not be preferred over a stable base of support when training for specific scapular stabilization purposes.},
  author       = {De Mey, Kristof and Danneels, Lieven and Cagnie, Barbara and Borms, Dorien and T'Jonck, Zilke and Van Damme, Eline and Cools, Ann},
  issn         = {1064-8011},
  journal      = {JOURNAL OF STRENGTH AND CONDITIONING RESEARCH},
  keyword      = {sEMG,sling exercises,SERRATUS ANTERIOR MUSCLE,shoulder,PUSH-UP VARIATIONS,REHABILITATION EXERCISES,IMPINGEMENT,JOINT,SUPPORT,PARTICIPANTS,PRESCRIPTION,INSTABILITY,STRENGTH},
  language     = {eng},
  number       = {6},
  pages        = {1626--1635},
  title        = {Shoulder muscle activation levels during four closed kinetic chain exercises with and without Redcord slings},
  url          = {http://dx.doi.org/10.1519/JSC.0000000000000292},
  volume       = {28},
  year         = {2014},
}

Chicago
De Mey, Kristof, Lieven Danneels, Barbara Cagnie, Dorien Borms, Zilke T’Jonck, Eline Van Damme, and Ann Cools. 2014. “Shoulder Muscle Activation Levels During Four Closed Kinetic Chain Exercises with and Without Redcord Slings.” Journal of Strength and Conditioning Research 28 (6): 1626–1635.
APA
De Mey, Kristof, Danneels, L., Cagnie, B., Borms, D., T’Jonck, Z., Van Damme, E., & Cools, A. (2014). Shoulder muscle activation levels during four closed kinetic chain exercises with and without Redcord slings. JOURNAL OF STRENGTH AND CONDITIONING RESEARCH, 28(6), 1626–1635.
Vancouver
1.
De Mey K, Danneels L, Cagnie B, Borms D, T’Jonck Z, Van Damme E, et al. Shoulder muscle activation levels during four closed kinetic chain exercises with and without Redcord slings. JOURNAL OF STRENGTH AND CONDITIONING RESEARCH. 2014;28(6):1626–35.
MLA
De Mey, Kristof, Lieven Danneels, Barbara Cagnie, et al. “Shoulder Muscle Activation Levels During Four Closed Kinetic Chain Exercises with and Without Redcord Slings.” JOURNAL OF STRENGTH AND CONDITIONING RESEARCH 28.6 (2014): 1626–1635. Print.