Index to Chiropractic Literature
Index to Chiropractic Literature
My ICL     Sign In
Tuesday, February 18, 2020
Index to Chiropractic LiteratureIndex to Chiropractic LiteratureIndex to Chiropractic Literature
Share:

ICL Home


For best results switch to Advanced Search.
Article Detail
Return to Search Results
ID 25950
  Title Inhibitory effects of prolonged vibratory stimulus on the maximal voluntary contraction force and muscle activity of the triceps brachii: An experimental study
URL https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6656906/?report=classic
Journal J Chiropr Med. 2019 Jun;18(2):97-105
Author(s)
Subject(s)
Peer Review Yes
Publication Type Article
Abstract/Notes

Objective: The purpose of this study was to quantify the effects of prolonged vibratory stimulus on the maximal voluntary contraction (MVC) force and muscle activity of the triceps brachii and to clarify the effective stimulus time.

Methods: Twenty-five healthy volunteers with a mean age of 21.4 years participated. A vibratory stimulus at 86 Hz was applied to the triceps brachii tendon for 5 and 10 minutes. Before and after these stimuli, the elbow extension MVC force was measured using a handheld dynamometer. Muscle activities of the lateral, long, and medial heads of the triceps brachii were also recorded by surface electromyography.

Results: The median MVC force significantly decreased to 82.7% after 5 minutes of vibratory stimulus and to 83.3% after 10 minutes of vibratory stimulus (P < .001). The median percentage of integrated electromyography of the triceps also significantly decreased to 78.2 (lateral head), 83.8 (long head), and 81.5 (medial head) after 5 minutes of vibratory stimulus and to 77.7, 81.4, and 77.2, respectively, after 10 minutes of vibratory stimulus (P < .001). There were no differences in the decrease in the MVC force and median percentage of integrated electromyography between 5 and 10 minutes of vibratory stimulus (P > .05).

Conclusion: Prolonged vibratory stimulus (5 minutes) to the triceps brachii tendon appeared to have an inhibitory effect on MVC force and muscle activity. The present results suggest that prolonged vibratory stimulus could be an effective treatment capable of reducing muscle tonus of the triceps brachii.

Author keywords: Elbow; Electromyography; Muscle Contraction; Muscle Strength Dynamometer; Vibration

Author affiliations:  RS: Department of Occupational Therapy, Faculty of Human Science, Hokkaido Bunkyo University, Eniwa, Japan; HS: Department of Rehabilitation, Hitsujigaoka Hospital, Sapporo, Japan; TS: Department of Rehabilitation, Hakodate Ryohoku Hospital, Hakodate, Japan; MS: Department of Rehabilitation, Sapporo City General Hospital, Sapporo, Japan; RT: Department of Rehabilitation, Ichijodori Hospital, Asahikawa, Japan; TT: Department of Rehabilitation, Anzai Orthopaedic Clinic, Sapporo, Japan

This abstract is reproduced with the permission of the publisher; click on the above link for free full text. PubMed Record


 

   Text (Citation) Tagged (Export) Excel
 
Email To
Subject
 Message
Format
HTML Text     Excel



To use this feature you must register a personal account in My ICL. Registration is free! In My ICL you can save your ICL searches in My Searches, and you can save search results in My Collections. Be sure to use the Held Citations feature to collect citations from an entire search session. Read more search tips.

Sign Into Existing My ICL Account    |    Register A New My ICL Account
Search Tips
  • Enclose phrases in "quotation marks".  Examples: "low back pain", "evidence-based"
  • Retrieve all forms of a word with an asterisk*, also called a wildcard or truncation.  Example: chiropract* retrieves chiropractic, chiropractor, chiropractors
  • Register an account in My ICL to save search histories (My Searches) and collections of records (My Collections)
Advanced Search Tips