NCT05795348

Brief Summary

The ForceLoss study aims to develop personalised modeling and simulation procedures to enable the differential diagnosis for the loss of muscle force, namely dynapenia. The primary causes of dynapenia can be identified in a diffuse or selective sarcopenia, a lack of activation (inhibition), or suboptimal motor control. Each of these causes requires different interventions, but a reliable differential diagnosis is currently impossible. While biomedical instruments and tools can provide valuable information, it is often left to the experience of the single clinican to integrate such information into a complete diagnostic picture. An accurate diagnosis for dynapenia is important for a number of pathologies, including neurological diseases, age-related frailty, diabetes, and orthopaedic conditions. The hypothesis is that the use of mechanistic, subject-specific models (digital twins) to simulate a maximal isometric knee extension task, informed by experimental measures may be employed to conduct a robust differential diagnosis for dynapenia. In this study, on patients candidate for knee arthroplasty, the investigators will expand (i) the experimental protocol previously developed and tested on healthy volunteers with a measure of involuntary muscle contraction (superimposed neuromuscular electrical stimulation, SNMES), a hand-grip test, measures of bio-impedance and clinical questionnaires, and (ii) the modeling and simulation framework to include one additional step (to check for muscle inhibition). Medical imaging, electromyography (EMG) and dynamometry data will be collected and combined to inform a digital twin of each participant. Biomechanical computer simulations of a Maximal Voluntary Isometric Contraction (MVIC) task will then be performed. Comparing the models' estimates to in vivo dynamometry measurements and EMG data, the investigators will test one by one the three possible causes of dynapenia, and, through a process of hypothesis falsification will exclude those that do not explain the observed loss of muscle force.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2023

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 21, 2023

Completed
7 days until next milestone

Study Start

First participant enrolled

March 28, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

April 3, 2023

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 27, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 27, 2024

Completed
Last Updated

May 29, 2024

Status Verified

May 1, 2024

Enrollment Period

1.2 years

First QC Date

March 21, 2023

Last Update Submit

May 27, 2024

Conditions

Keywords

DynapeniaOsteoarthritic patientsIn Silico MedicineDigital TwinsMaximal Voluntary Isometric ContractionMusculoskeletal ModelingDynamometryElectromyographySuperimposed Neuromuscular Electrical Stimulation

Outcome Measures

Primary Outcomes (4)

  • Muscle volume

    Full lower limb MRI data will be acquired with subjects in supine position. Individual muscle volumes (in cm3) will be segmented using commercial software and stored in anonymized form.

    at baseline (Day 0)

  • MVIC Torque

    Dynamometry data will be acquired while participants perform a MVIC leg extension test. The maximum torque values (Nm) measured over three repetitions will be recorded. These correspond to the values observed in correspondence of the plateaux of force, developed over a sustained contraction.

    at baseline (Day 0)

  • Muscle Inhibition level

    The difference between the maximal force exerted during the MVIC test (voluntary contraction) and that achieved when the muscles are electrically stimulated (involuntary contraction) will be computed.

    at baseline (Day 0)

  • Co-contraction index (CCI)

    Experimental EMG data will be recorded from the major lower limb muscles involved in the knee extension, while participants perform a maximal voluntary isometric contraction on a dynamometer (i.e., MVIC test to quantify muscle strength). The co-contraction index, defined as the relative activation of agonist and antagonist muscles (for this task: quadriceps and hamstrings) in the act of kicking (MVIC test), will be computed according to Li et al (2020).

    at baseline (Day 0)

Study Arms (1)

Knee Osteoarthritic Patients

OTHER

Patients candidate for knee arthroplasty; Age: 65-80 years; Body Mass Index: 18.5-30 kg/m²; ASA Classification: 1 or 2; Diagnosis of primary osteoarthritis at the knee; Suspect sarcopenia.

Diagnostic Test: Personalised Musculoskeletal Modeling

Interventions

Magnetic resonance images, electromyography and dynamometry data will be used to develop and inform personalised musculoskeletal models

Also known as: Clinical measures (BIA, Hand-grip test), Clinical questionnaires (WOMAC, KSS)
Knee Osteoarthritic Patients

Eligibility Criteria

Age65 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsOlder Adult (65+)

You may qualify if:

  • Diagnosis of Primary Arthrosis at the knee (according to the American College of Rheumatology criteria), subjects elected for tota knee arthroplasty
  • Body Mass Index between 18.5 and 30 kg/m2
  • Health status (according to the American Society of Anesthesiology classification) equal to 1 or 2
  • Suspected systemic sarcopenia due to aging or localized sarcopenia due to disuse

You may not qualify if:

  • Neurological, rheumatic or tumoral diseases
  • Inguinal or abdominal hernia
  • Diabetes
  • Severe Hypertension (Level 3)
  • Severe Cardio-pulmonary insufficiency
  • Diagnosis of Osteonecrosis in the lower limb joints
  • Pathologies or physical conditions incompatible with the use of magnetic resonance imaging and electrostimulation (i.e., active and passive implanted biomedical devices, epilepsy, severe venous insufficiency in the lower limbs)
  • Previous interventions or traumas to the joints of the lower limb

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

IRCCS Istituto Ortopedico Rizzoli

Bologna, 40136, Italy

Location

Related Publications (7)

  • Fernandez J, Zhang J, Heidlauf T, Sartori M, Besier T, Rohrle O, Lloyd D. Multiscale musculoskeletal modelling, data-model fusion and electromyography-informed modelling. Interface Focus. 2016 Apr 6;6(2):20150084. doi: 10.1098/rsfs.2015.0084.

    PMID: 27051510BACKGROUND
  • 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. doi: 10.1016/s1050-6411(00)00027-4.

    PMID: 11018445BACKGROUND
  • Petterson SC, Barrance P, Buchanan T, Binder-Macleod S, Snyder-Mackler L. Mechanisms underlying quadriceps weakness in knee osteoarthritis. Med Sci Sports Exerc. 2008 Mar;40(3):422-7. doi: 10.1249/MSS.0b013e31815ef285.

    PMID: 18379202BACKGROUND
  • Rice DA, McNair PJ. Quadriceps arthrogenic muscle inhibition: neural mechanisms and treatment perspectives. Semin Arthritis Rheum. 2010 Dec;40(3):250-66. doi: 10.1016/j.semarthrit.2009.10.001. Epub 2009 Dec 2.

    PMID: 19954822BACKGROUND
  • Pons C, Borotikar B, Garetier M, Burdin V, Ben Salem D, Lempereur M, Brochard S. Quantifying skeletal muscle volume and shape in humans using MRI: A systematic review of validity and reliability. PLoS One. 2018 Nov 29;13(11):e0207847. doi: 10.1371/journal.pone.0207847. eCollection 2018.

    PMID: 30496308BACKGROUND
  • Manini TM, Clark BC. Dynapenia and aging: an update. J Gerontol A Biol Sci Med Sci. 2012 Jan;67(1):28-40. doi: 10.1093/gerona/glr010. Epub 2011 Mar 28.

    PMID: 21444359BACKGROUND
  • O'Brien TD, Reeves ND, Baltzopoulos V, Jones DA, Maganaris CN. The effects of agonist and antagonist muscle activation on the knee extension moment-angle relationship in adults and children. Eur J Appl Physiol. 2009 Aug;106(6):849-56. doi: 10.1007/s00421-009-1088-4. Epub 2009 May 27.

    PMID: 19471955BACKGROUND

MeSH Terms

Conditions

Osteoarthritis, Knee

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Officials

  • Marco Viceconti, Professor

    IRCCS Istituto Ortopedico Rizzoli

    PRINCIPAL INVESTIGATOR

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

March 21, 2023

First Posted

April 3, 2023

Study Start

March 28, 2023

Primary Completion

May 27, 2024

Study Completion

May 27, 2024

Last Updated

May 29, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will share

We plan to share a database of experimental data representative of a population of patients elected for total knee arthroplasty. The dataset will include torques profiles and EMG data recorded during the MVIC test, the torque profiles recorded while delivering the electrical stimulation, and may include processed Magnetic Resonance Imaging data (segmentations of lower limb bones bones and muscles). All data will be irreversibly anonymized.

Time Frame
The (anonymized) dataset will be made available to the wider biomechanical community upon study completion
Access Criteria
Not yet defined

Locations