Effect of time-of-day-specific strength training on maximum strength and EMG activity of the leg extensors in men.

Effect of time-of-day-specific strength training on maximum strength and EMG activity of the leg extensors in men. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Effect of time-of-day-specific strength training on maximum strength and EMG activity of the leg extensors in men. Abstract Text:

In this study, we examined the effects of time-of-day-specific strength training on maximum strength and electromyography (EMG) of the knee extensors in men. After a 10-week preparatory training period (training times 17:00-19:00 h), 27 participants were randomized into a morning (07:00-09:00 h, n = 14) and an evening group (17:00-19.00 h, n = 13). Both groups then underwent 10 weeks of time-of-day-specific training. A matched control group (n = 7) completed all testing but did not train. Unilateral isometric knee extension peak torque (MVC) and one-repetition maximum half-squat were assessed before and after the preparatory training and after the time-of-day-specific training at times that were not training-specific (between 09:00 and 16:00 h). During training-specific hours, peak torque and EMG during MVC and submaximum isometric contraction at 40% MVC were assessed before and after the time-of-day-specific training. The main finding was that a significant diurnal difference (P < 0.01) in peak torque between the 07:00 and 17:00 h tests decreased after time-of-day-specific training in the morning group but not in the evening or control groups. However, the extent of this time-of-day-specific adaptation varied between individuals. Electromyography during MVC did not show any time-of-day-specific adaptation, suggesting that peripheral rather than neural adaptations are the main source of temporal specificity in strength training.

Effect of time-of-day-specific strength training on maximum strength and EMG activity of the leg extensors in men. Publishing Authors By Initials

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Effect of time-of-day-specific strength training on maximum strength and EMG activity of the leg extensors in men. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of sports sciences

VOLUME: 26

Page Numbers: 1005-14

Journal Abbreviation:

ISSN: 0264-0414

DAY: 18

MONTH: Aug

YEAR: 2008

Effect of time-of-day-specific strength training on maximum strength and EMG activity of the leg extensors in men. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 8405364

Effect of time-of-day-specific strength training on maximum strength and EMG activity of the leg extensors in men. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Effect of time-of-day-specific strength training on maximum strength and EMG activity of the leg extensors in men. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Effect of time-of-day-specific strength training on maximum strength and EMG activity of the leg extensors in men.

AFFILIATION: Department of Biology of Physical Activity and Neuromuscular Research Centre, University of Jyvaskyla, Jyvaskyla, Finland.

Country: England

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Sports Sci

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Effect of time-of-day-specific strength training on maximum strength and EMG activity of the leg extensors in men Related Publications

• Effect of time-of-day-specific strength training on maximum strength and EMG activity of the leg extensors in men.
• Histamine induced changes in the sulphate metabolism of the duodenum and prepyloric region of the stomach: an experimental study with special reference to ulcer formation.
• Inhibition of cinchophen ulcer in chicks with boiled potassium hydrogen saccharate.
• Surgical repair of subcutaneous rupture of the Achilles tendon.