Concentric and/or eccentric training-induced alterations in shoulder flexor and extensor strength

The Journal of Orthopaedic and Sports Physical Therapy
I G AmiridisJ Van Hoecke

Abstract

To examine the effect of specific concentric and eccentric training on muscular strength following an initial standardized period of excessive training, shoulder extensors and flexors were tested. The shoulder is a joint particularly susceptible to injury and requires a specific strength training program. For a period of 12 weeks, subjects performed training, including concentric and eccentric actions. Thereafter, they were divided into three groups that performed specific 12-week programs, including either concentric (C-E/C), eccentric (C-E/E), or a combination of both concentric and eccentric exercises (C-E/C-E). Following the initial period of training, significant increases (p < 0.05) in performance were observed for all experimental groups. The C-E/C group showed significant increases (p < 0.05) in performance after 24 weeks of training, especially at high concentric angular velocities. However, the C-E/E group showed significant increases (p < 0.05) only in their eccentric moments. No significant differences were noted for the C-E/C-E group. These findings seem to partly confirm the mode-specificity principle, as only the concentric-specific training program improved concentric and eccentric strength. Moreover, the veloci...Continue Reading

References

Dec 15, 1978·European Journal of Applied Physiology and Occupational Physiology·P V KomiV Vihko
Jan 1, 1991·European Journal of Applied Physiology and Occupational Physiology·S H WestingA Thorstensson
Jan 1, 1991·European Journal of Applied Physiology and Occupational Physiology·N A TaylorS N Stanley
Jan 1, 1989·European Journal of Applied Physiology and Occupational Physiology·V Kovanen, H Suominen
Jan 1, 1986·European Journal of Applied Physiology and Occupational Physiology·K Häkkinen, P V Komi
Nov 1, 1983·The Journal of Physiology·P M RackD K Walters
Nov 1, 1984·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·J D MacDougallJ R Sutton
Jan 1, 1983·European Journal of Applied Physiology and Occupational Physiology·H Kanehisa, M Miyashita
Jan 1, 1984·Cell and Tissue Research·J Fridén
Jan 1, 1994·European Journal of Applied Physiology and Occupational Physiology·H KanehisaT Fukunaga
Jan 1, 1991·The Journal of Orthopaedic and Sports Physical Therapy·J P TomberlinD M Ilstrup
Jan 1, 1991·The Journal of Orthopaedic and Sports Physical Therapy·K N BishopG Merrill
Jan 1, 1991·The Journal of Orthopaedic and Sports Physical Therapy·L M RyanP W Duncan
Jan 1, 1989·The Journal of Orthopaedic and Sports Physical Therapy·P W DuncanA G Buehler

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Citations

Oct 27, 2009·Journal of Strength and Conditioning Research·Justin A Richards, Tom A Dawson
Sep 23, 2009·Journal of Athletic Training·Emmy K L Wong, Gabriel Y F Ng
Sep 2, 2008·The Journal of Orthopaedic and Sports Physical Therapy·Emmy K L Wong, Gabriel Y F Ng
Jun 2, 2007·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·S S KohlesR Vanderby
Feb 6, 2020·Pain Medicine : the Official Journal of the American Academy of Pain Medicine·Alberto Marcos Heredia-RizoPascal Madeleine

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