| Resistance exercise training enhances sympathetic nerve activity during fatigue-inducing isometric handgrip trials. | |
| | |
MedLine Citation:
|
PMID: 18941773 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Muscle sympathetic nerve activity (MSNA) was investigated 1 week before (pre-training), 1 week after, and 4-6 weeks after strength training using fatigue-inducing handgrip exercises and post-exercise forearm occlusion. Eighteen volunteers underwent forearm training, which consisted of 30 maximal effort, 10-s-duration static handgrips, 4 days per week for 4 weeks. A second group of 18 volunteers served as a control. MSNA was recorded from the tibial nerve by microneurography. Maximal handgrip force increased at 1 week post-training. The MSNA response during fatigued handgrip also increased at 1 week post-training, as compared to pre-training (52.6 +/- 5.8 vs. 40.6 +/- 4.4 bursts min(-1) (mean +/- SEM), respectively). However, at 4 weeks post-training, MSNA activity returned to the pre-training level (44.0 +/- 5.2 bursts min(-1); p < 0.0001 by ANOVA), while the control group showed no changes throughout this period. The MSNA response during post-exercise forearm occlusion was constant throughout the experiment in both groups. Our results indicate that an increased MSNA response after strength training is likely to be the result of central neural factors rather than the muscle metaboreflex. |
| | |
Authors:
|
Mitsuru Saito; Satoshi Iwase; Tesshin Hachiya |
Related Documents
:
|
22318253 - Effects of respiratory-muscle exercise on spinal curvature. 20397093 - Comparing exercise prescribed with exercise completed: effects of gender and mode of ex... 10394833 - Overviews of respiratory rehabilitation in chronic obstructive pulmonary disease. |
Publication Detail:
|
Type: Journal Article Date: 2008-10-22 |
Journal Detail:
|
Title: European journal of applied physiology Volume: 105 ISSN: 1439-6327 ISO Abbreviation: Eur. J. Appl. Physiol. Publication Date: 2009 Jan |
Date Detail:
|
Created Date: 2009-01-09 Completed Date: 2009-03-19 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 100954790 Medline TA: Eur J Appl Physiol Country: Germany |
Other Details:
|
Languages: eng Pagination: 225-34 Citation Subset: IM |
Affiliation:
|
Applied Physiology Laboratory, Toyota Technological Institute, 2-12 Hisakata Tmpaku-ku, Nagoya 468-8511, Japan. msaito@toyota-ti.ac.jp |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adaptation, Biological
/
physiology* Blood Pressure / physiology Exercise Test Exercise Tolerance Hand Strength / physiology* Heart Rate / physiology Humans Ischemia / metabolism Isometric Contraction / physiology Muscle Fatigue / physiology* Muscle Fibers, Skeletal / physiology Oxygen Consumption / physiology Physical Fitness / physiology Resistance Training* Sympathetic Nervous System / physiology* Tibial Nerve / physiology Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Arsenic levels in ground water and cancer incidence in Idaho: an ecologic study.
Next Document: Implications of different classes of sensorimotor disturbance for cerebellar-based motor learning mo...