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ORCID Profile
Orcid icon. 0000-0003-2690-6807

Current Organisations
Norwegian School of Sport Sciences , University of Southern Denmark , Professionshøjskolen Absalon , Syddansk Universitet , University College Absalon , Aalborg Universitet , Aalborg University , Københavns Universitet , National Research Centre for the Working Environment

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Publications

Publication

Changes in H reflex and neuromechanical properties of the trapezius muscle after 5 weeks of eccentric training: a randomized controlled trial

Publisher: American Physiological Society

Date: 15-06-2014

DOI: 10.1152/JAPPLPHYSIOL.00164.2014

Abstract: Trapezius muscle Hoffman (H) reflexes were obtained to investigate the neural adaptations induced by a 5-wk strength training regimen, based solely on eccentric contractions of the shoulder muscles. Twenty-nine healthy subjects were randomized into an eccentric training group ( n = 15) and a reference group ( n = 14). The eccentric training program consisted of nine training sessions of eccentric exercise performed over a 5-wk period. H-reflex recruitment curves, the maximal M wave (M max ), maximal voluntary contraction (MVC) force, rate of force development (RFD), and electromyographic (EMG) voluntary activity were recorded before and after training. H reflexes were recorded from the middle part of the trapezius muscle by electrical stimulation of the C3/4 cervical nerves M max was measured by electrical stimulation of the accessory nerve. Eccentric strength training resulted in significant increases in the maximal trapezius muscle H reflex (H max ) (21.4% [5.5–37.3] P = 0.01), MVC force (26.4% [15.0–37.7] P 0.01), and RFD (24.6% [3.2–46.0] P = 0.025), while no significant changes were observed in the reference group. M max remained unchanged in both groups. A significant positive correlation was found between the change in MVC force and the change in EMG voluntary activity in the training group ( r = 0.57 P = 0.03). These results indicate that the net excitability of the trapezius muscle H-reflex pathway increased after 5 wk of eccentric training. This is the first study to investigate and document changes in the trapezius muscle H reflex following eccentric strength training.

Publication

Efficient human force transmission tailored for the individual cyclist

Publisher: Elsevier BV

Date: 06-2010

Location: Denmark

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Related Funding Activities

No related grants have been discovered for Ernst Albin Hansen.

Ernst Albin Hansen

Researcher

Related Links

Publications

Changes in H reflex and neuromechanical properties of the trapezius muscle after 5 weeks of eccentric training: a randomized controlled trial

Efficient human force transmission tailored for the individual cyclist

Related Organisations

Norwegian School Of Sport Sciences

University Of Southern Denmark

Professionshøjskolen Absalon

Syddansk Universitet

University College Absalon

Aalborg Universitet

Aalborg University

Københavns Universitet

National Research Centre For The Working Environment

Related Funding Activities

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