Ignite Creation Date:
2024-05-06 @ 3:38 PM
Last Modification Date:
2024-10-26 @ 1:53 PM
Study NCT ID:
NCT04706169
Status:
COMPLETED
Last Update Posted:
2021-08-11
First Post:
2021-01-09
Brief Title:
Age-related Differences in Shoulder Dynamic and Isometric Contractions
Sponsor:
University of Castilla-La Mancha
Organization:
University of Castilla-La Mancha
Study Overview
Official Title:
Age-related Differences in Motor Recruitment Patterns of the Shoulder in Dynamic and Isometric Contractions A Cross-sectional Study
Status:
COMPLETED
Status Verified Date:
2021-08
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
A cross-sectional descriptive study in which the surface electromyographic activity of five shoulder muscles was compared in two populations older adults and 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
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
Detailed Description:
Aging processes in the musculoskeletal system lead to functional impairments that restrict participation Purpose To assess differences in force and motor recruitment patterns of shoulder muscles between age groups to understand functional disorders A cross-sectional study comparing thirty adults 20-64 and 30 older adults 65 Surface-electromyography sEMG of the middle deltoid upper and lower trapezius infraspinatus and serratus anterior muscles was recorded Maximum isometric voluntary contraction MIVC was determined at 45 glenohumeral abduction For the sEMG signal registration concentric and excentric contraction with and without 1 kg and isometric contraction were requested Participants abducted the arm from 0 up to an abduction angle of 135 for concentric and excentric contraction and from 0º to 45º and remained there at 80 of the MIVC level while isometrically pushing against a handheld dynamometer Differences in sEMG amplitudes root mean square RMS of all contractions but also onset latencies during concentric contraction of each muscle between age groups were analyzed Statistical differences in strength AdultsOlder adults005 existed between groups No significant differences in RMS values of dynamic contractions were detected except for serratus anterior but there were for isometric contraction of all muscles analyzed AdultsOlder adults005 The recruitment order varied between age groups showing a general tendency towards delayed onset times in Older Adults except for the upper trapezius muscle Age differences in muscle recruitment patterns were found which underscores the importance of developing musculoskeletal data to prevent and guide geriatric shoulder pathologies
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None