High-definition Surface Electromyography Markers for the Diagnosis of Sarcopenia
CHRONOS-SARC
HD-sEMG Markers of Sarcopenia
1 other identifier
interventional
175
1 country
6
Brief Summary
Sarcopenia is a progressive and generalised skeletal muscle disorder involving the accelerated loss of muscle mass and function that is associated with increased adverse outcomes including falls, functional decline, frailty, and mortality. In this pilot project, the investigators want to explore the potential of the high-definition surface electromyography technology (HD-sEMG) for the diagnosis of sarcopenia. This is a monocentric, descriptive, cross-sectional, parallel group study to develop a new diagnostic method. It is planned to include 50 people aged 75 years and over hospitalized in the acute geriatric ward and suspected of sarcopenia (Score ≥4 on the SARC-F screening questionnaire). The inclusion duration will be 36 months and adding a 1-month patient follow-up as part of routine care, the total study duration will be 37 months. Patients will have their body composition (muscle mass, fat mass, and bone mass) using dual X-ray absorptiometry (DEXA). Muscular strength will be assessed by handgrip strength. Physical performance will be assessed. Additional data will be collected from their medical records.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started May 2022
Longer than P75 for not_applicable
6 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 29, 2021
CompletedFirst Posted
Study publicly available on registry
August 3, 2021
CompletedStudy Start
First participant enrolled
May 18, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 18, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 18, 2026
May 23, 2025
May 1, 2025
4.5 years
April 29, 2021
May 22, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Electromyographic signals of the rectus femoris collected by the HD-sEMG technique
These signals will be confronted by the diagnosis of sarcopenia defined by the joint presence of the 2 clinical criteria of the European Working Group on Sarcopenia in Older People 2 (EWGSOP2).
day1-day7
Secondary Outcomes (7)
Number of participants with falls. Definition of " fallers " : at least 1 fall in the last 12 months
day1- day7
Skeletal muscle mass index (SMMI in kg/m2, skeletal muscle mass/height2) collected by DEXA
day1-day7
Grip strength by dynamometer (kg)
day1-day7
SPPB score (SHORT PHYSICAL PERFORMANCE BATTERY score)
day1-day7
HD-sEMG muscle data, measured during lower limb quadriceps extension by High Definition Surface Electromyography HD-sEMG
1 month post inclusion
- +2 more secondary outcomes
Study Arms (1)
Elderly patients suspected of sarcopenia
EXPERIMENTALInterventions
high definition surface electromyography, allowing the recording of muscle activation signals sensitive to the intensity of the contraction and indirectly to the muscle strength as well as to the muscular fatigability, but also capable of measuring the modifications of the recruitment modalities of the motor units. This recording will be made on the rectus femoris during knee extension, either in the lying position or during chair lifts, depending on the patient's functional state.
Muscle Ultrasound with Philips Lumify Wireless Handheld Ultrasound for Android - Model - L12-4 linear probe, allowing performance at the patient's bed.
physical activity assessment questionnaire/adapted version for seniors
Eligibility Criteria
You may qualify if:
- Patient aged 75 years and over
- Score ≥4 on the SARC-F screening questionnaire
- Enrolled in a social security plan (no AME)
- Informed and consenting patient
You may not qualify if:
- BMI ≥30 kg/m2
- Untreated/unbalanced endocrinological pathology
- Myopathy
- Inflammatory or autoimmune pathology
- Severe psychiatric pathology or severe cognitive disorders that do not allow the performance of examinations
- Patients who are dependent for all acts of daily life
- Patients with a very short life expectancy
- Recent fracture or trauma of the lower limbs preventing dynamic measurement of HD-sEMG recording
- Bilateral hip prosthesis
- Skin problem that may interfere with the recording of surface EMG activity
- Patient under guardianship / curatorship
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (6)
Service de gériatrie aigue polyvalente (GAP)
Ivry-sur-Seine, 94205, France
Service de soins de suite et de réadaptation Gériatrique 1
Ivry-sur-Seine, 94205, France
Service de soins de suite et de réadaptation gériatrique 2
Ivry-sur-Seine, 94205, France
Unité d'Explorations fonctionnelles du sujet âgé, Hôpital Charles Foix
Ivry-sur-Seine, 94205, France
Service de soins de suite et de réadaptation -Plaies et cicatrisation
Paris, 75012, France
Service de soins de suite et de réadaptation Gériatrique Hôpital Rothschild
Paris, 75012, France
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Kiyoka KINUGAWA, MD PhD
Assistance Publique - Hôpitaux de Paris
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 29, 2021
First Posted
August 3, 2021
Study Start
May 18, 2022
Primary Completion (Estimated)
November 18, 2026
Study Completion (Estimated)
December 18, 2026
Last Updated
May 23, 2025
Record last verified: 2025-05
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF
- Time Frame
- Beginning 3 months and ending 3 years following article publication. Requests out of these time frame can also be submitted to the sponsor
- Access Criteria
- Researchers who provide a methodologically sound proposal
Data are available upon reasonable request The procedures carried out with the French data privacy authority (CNIL, Commission nationale de l'informatique et des libertés) do not provide for the transmission of the database, nor do the information and consent documents signed by the patients. Consultation by the editorial board or interested researchers of individual participant data that underlie the results reported in the article after deidentification may nevertheless be considered, subject to prior determination of the terms and conditions of such consultation and in respect for compliance with the applicable regulations.