Ignite Creation Date:
2024-05-06 @ 7:40 PM
Last Modification Date:
2024-10-26 @ 3:11 PM
Study NCT ID:
NCT06099132
Status:
COMPLETED
Last Update Posted:
2023-10-25
First Post:
2023-10-19
Brief Title:
Antagonist Activation Measurement at the Ankle Using High-density and Bipolar Surface EMG in Chronic Hemiparesis
Sponsor:
Henri Mondor University Hospital
Organization:
Henri Mondor University Hospital
Study Overview
Official Title:
Antagonist Activation Measurement at the Ankle Using High-density and Bipolar Surface EMG in Chronic Hemiparesis
Status:
COMPLETED
Status Verified Date:
2023-10
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:
CC2017
Brief Summary:
In chronic hemiparesis abnormal antagonist muscle activation in the paretic lower limb contributes to impair ambulation capacities A biased estimate of antagonist muscle activation when using surface bipolar EMG compared with high-density HD EMG has been previously reported in healthy subjects The present study compares muscles cocontraction at the paretic ankle estimated with a pair of and multi-channel surface EMG
Detailed Description:
In chronic hemiparesis gait velocity deficit is associated with a disturbed voluntary movement caused especially by inappropriate antagonist muscle activation The present study investigates muscles cocontraction at the paretic ankle estimated with a pair of and multi-channel surface EMG HD-EMG in patients after stroke HD-EMGs were collected from gastrocnemius medialis GM tibialis anterior TA and soleus SO during isometric contractions From these EMGs the study asked whether bipolar and HD-EMGs provided comparable estimates of antagonist activation Two active contraction levels submaximal vs maximal and knee positions flexed vs extended were assessed for each muscle Notwithstanding the evidence of localized antagonist activation in the GM muscle of healthy subjects hypothesizing equally localized antagonist activation in the paretic limb may not follow from the current literature In virtue of evidence supporting the enlargement of motor unit territories in paretic and hyperactive muscles it may be that stroke survivors have lost their ability to regionally and appropriately activate their muscle In this case bipolar and HD-EMG would be expected to provide comparable antagonist activation coefficients
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