Age-related Changes of Shoulder Muscles

Electromyography Clinical Trial

— SEMG  

Official title:

Age-related Changes in Activation Patterns of Shoulder Muscles

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02974452
• Other study ID #: UAlcalaH
• Status: Completed
• Phase: N/A
• First received: November 20, 2016
• Last updated: November 22, 2016
• Start date: January 2014
• Est. completion date: January 2016

Study information

• Verified date: November 2016
• Source: University of Alcala
• Contact: n/a
• Is FDA regulated: No
• Health authority: Spain: Ministerio de Sanidad, Servicios Sociales e Igualdad
• Study type: Observational

Clinical Trial Summary

A cross-sectional descriptive study, in which the surface electromyographic activity of five shoulder muscles was compared in three populations: older adults, middle-aged adults and young adults. The evaluation of the electromyographic data offers a suitable foundation to understand aging process.

This supports that surface electromyography provide information about the aged shoulder muscles. Loss of functionality is suffered by a high percentage of older adults, which greatly limits their physical activity. In this sense, this paper presents findings that might be related with possible therapeutic approaches in subsequent studies.

Description:

The purpose of the present work was to assess neuromotor abnormalities in aging shoulder. Twenty young adults (20-42), 20 middle-aged adults (43-67) and 20older adults (>68) were recruited. A comparative electromyography (EMG) study was performed on the upper and lower trapezius, middle deltoid, infraspinatus and serratus anterior. The EMG measurement (root mean square (RMS)) and onset time of isometric contractions were analyzed. Body mass index and strength were also tested.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 60
• Est. completion date: January 2016
• Est. primary completion date: March 2015
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Both
• Age group: 20 Years to 90 Years

Eligibility

Inclusion Criteria:

• Healthy subjects with no previously manifested symptoms in the shoulder joint and/or the neck during the past year,

Exclusion Criteria:

• moderate or severe cognitive impairment, rheumatologic diseases, massive osteoarthritis, tumors, shoulder joint instability, circulatory disorders (hemophilia clotting problems) and dermatological problems exacerbated by contact with skin

Study Design

Observational Model: Ecologic or Community, Time Perspective: Cross-Sectional

Related Conditions & MeSH terms

• Electromyography

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
University of Alcala

References & Publications (3)

Hermens HJ, Freriks B, Disselhorst-Klug C, Rau G. Development of recommendations for SEMG sensors and sensor placement procedures. J Electromyogr Kinesiol. 2000 Oct;10(5):361-74. — View Citation

Lirio Romero C, Torres Lacomba M, Castilla Montoro Y, Prieto Merino D, Pacheco da Costa S, Velasco Marchante MJ, Bodes Pardo G. Mobilization With Movement for Shoulder Dysfunction in Older Adults: A Pilot Trial. J Chiropr Med. 2015 Dec;14(4):249-58. doi: — View Citation

Phadke V, Camargo P, Ludewig P. Scapular and rotator cuff muscle activity during arm elevation: A review of normal function and alterations with shoulder impingement. Rev Bras Fisioter. 2009 Feb 1;13(1):1-9. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	The mean Root Mean Square (RMS) value	The electromyographic data were captured simultaneously on a PC by using the LabChart® software. Within the time interval from 2 to 4 seconds after contraction initiation a power spectrum analysis was performed together with the determination of RMS values. The mean RMS values were automatically obtained from the software	30 minutes	Yes
Primary	onset latency	Start of contraction on the basis of 15% of RMS	30 minutes	Yes
Secondary	maximal isometric voluntary contraction	Using hand-held dynamometer	5 minutes	Yes
Secondary	body mass index		5 minutes	Yes