High-definition Surface Electromyography Markers for the Diagnosis of Sarcopenia (CHRONOS-SARC)

Assistance Publique - Hôpitaux de Paris

Status

Enrolling

Conditions

Sarcopenia

Treatments

Other: - Quadriceps muscle ultrasound

Other: IPAQ Physical Activity Questionnaire.

Other: HD-sEMG

Study type

Interventional

Funder types

Other

Identifiers

NCT04987814

APHP201339

Details and patient eligibility

About

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.

Full description

The aging of the population is a major public health problem with its multifactorial impact on quality of life and maintenance of autonomy. Unfortunately, one consequence of aging is sarcopenia, which affects the intrinsic and functional properties of muscle. It is a risk factor for loss of autonomy, falls, frailty and is associated with increased mortality.

Sarcopenia is defined as a progressive loss of muscle mass, strength and physical performance. Classically, sarcopenia is assessed by imaging techniques (MRI, DEXA) or bioelectrical impedancemetry for aspects related to the assessment of muscle mass loss. MRI or DEXA are not widely available and/or access is limited.

For functional aspects, grip strength measurements are often used. Currently sarcopenia cannot be diagnosed and evaluated by a single examination, including both the morphological (muscle mass) and functional aspects. Furthermore, several biological markers are associated with muscle mass, strength, and function, but these biomarkers are not specific to skeletal muscle and are weakly associated with clinical goals.

Finally, despite the important interest in assessing the qualitative/functional and quantitative aspect of skeletal muscle in neuromuscular impairment, there is currently no tool that routinely assesses these aspects.

In this context, developing new approaches for non-invasive assessment of sarcopenia, is a major issue. In this pilot project, the investigators aim to develop a medical device derived from high-definition surface electromyography (HD-sEMG) technology, non-invasive and portable, for the diagnosis of sarcopenia.

Enrollment

120 estimated patients

Sex

All

Ages

75+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

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

Exclusion criteria

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