INVESTIGATION ON THE CROSS-TRANSFER EFFECTS OF UNILATERAL STRENGTH TRAINING ON NEUROMUSCULAR ADAPTATION OF FOREARM FLEXORS

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MOHEBI HAMID; HOSSEINI SEYED ALI; AFSHARNEZHAD T.

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Journal: RESEARCH ON SPORT SCIENCE Year:2006 | Volume:- | Issue:12 Page(s): 51-70

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Title

INVESTIGATION ON THE CROSS-TRANSFER EFFECTS OF UNILATERAL STRENGTH TRAINING ON NEUROMUSCULAR ADAPTATION OF FOREARM FLEXORS

Author(s)

MOHEBI HAMID | HOSSEINI SEYED ALI | AFSHARNEZHAD T. | Issue Writer Certificate

Keywords

CROSS-TRANSFER EFFECTSQ3

MVCQ3

UNILATERAL TRAININGQ3

EMGQ2

Abstract

The purpose of the present study was to examine the cross-transfer effects of unilateral strength training on neuromuscular adaptation of forearm flexors. Twenty four healthy males (age: 20.63±1.81 years. height: 173.88±4.05cm. weight: 72.04±7.64 kg) without the history of injuries on elbow and shoulder joints and muscles were elected, and assigned to a control (CTL; n= 12) and training (TRN: n= 12) groups. The TRN group performed strength training on non-dominant elbow flexors 3 times per week for 10 weeks. Integrated electromyography (IEMG) data from agonist (biceps brachi) and antagonist (triceps brachi) muscles, arm circumference and maximal voluntary contraction (MVC) of elbow flexors of both dominant (DOM) and non-dominant (NONDOM) arms were measured in pre-test and post-test.The result indicated a significant increase (p£50.05) in biceps brachi muscle IEMG, elbow flexor MVC and a significant decrease in antagonist (triceps brachi) muscle IEMG over 10 weeks in both the trained and untrained limbs for the TRN group, but no significant change in these factors in either limbs of the CTL group. Also the results indicate significant increase (P£50.05) in NONDOM arm circumference for the TRN group, but no significant change in DOM limb for the TRNor CTL group. It can be concluded that unilateral strength training increases isometric strength of elbow flexors and improves neural adaptations not only in the trained limb but also in cotralateral untrained limb. The contra lateral strength gains do not result from changes in muscle morphology. Consequently the mechanism underlying cross education of muscular strength may be explained by central neural factors during training.

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APA: Copy

MOHEBI, HAMID, HOSSEINI, SEYED ALI, & AFSHARNEZHAD, T.. (2006). INVESTIGATION ON THE CROSS-TRANSFER EFFECTS OF UNILATERAL STRENGTH TRAINING ON NEUROMUSCULAR ADAPTATION OF FOREARM FLEXORS. RESEARCH ON SPORT SCIENCE, -(12), 51-70. SID. https://sid.ir/paper/68136/en

Vancouver: Copy

MOHEBI HAMID, HOSSEINI SEYED ALI, AFSHARNEZHAD T.. INVESTIGATION ON THE CROSS-TRANSFER EFFECTS OF UNILATERAL STRENGTH TRAINING ON NEUROMUSCULAR ADAPTATION OF FOREARM FLEXORS. RESEARCH ON SPORT SCIENCE[Internet]. 2006;-(12):51-70. Available from: https://sid.ir/paper/68136/en

IEEE: Copy

HAMID MOHEBI, SEYED ALI HOSSEINI, and T. AFSHARNEZHAD, “INVESTIGATION ON THE CROSS-TRANSFER EFFECTS OF UNILATERAL STRENGTH TRAINING ON NEUROMUSCULAR ADAPTATION OF FOREARM FLEXORS,” RESEARCH ON SPORT SCIENCE, vol. -, no. 12, pp. 51–70, 2006, [Online]. Available: https://sid.ir/paper/68136/en

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