Sarcopenia studies measure muscle strength, mass and physical performance repeatedly, in older participants, often with exercise or nutrition interventions. Capture holds the timed tests, DXA results, questionnaires, falls and adverse events in one audited study, built free in the sandbox with no CRO set-up.
Free sandbox · No credit card · 21 CFR Part 11 aligned
Strength
Grip strength, dominant hand, trial 1
GRIP1Grip strength, dominant hand, trial 2
GRIP2Grip strength, dominant hand, trial 3
GRIP3Performance
Five chair stands, time
CHAIR5Gait speed, 4 m
GAIT4Best grip value
GRIPMAXCalculated, read-only
25.0 kg CalculatedSarcopenia trial data in brief
The indication
Sarcopenia is the age-related loss of muscle strength, mass and function. Guidance such as the EWGSOP2 consensus describes a stepped approach: screening with a questionnaire such as SARC-F, assessing muscle strength with grip strength or a chair stand test, confirming low muscle quantity or quality with imaging such as DXA, and grading severity by physical performance measures such as gait speed or the short physical performance battery. Trials typically borrow these measures as endpoints. Your protocol defines which thresholds and definitions apply; this page does not set clinical cut-offs and does not assess any treatment.
In data terms, that produces a study with a small number of repeated, standardised physical tests, one or two imaging results per participant, a handful of questionnaires and, depending on the intervention, a log of sessions or intake. The measurements must be comparable across visits and across sites, so the form has to record how the test was done, not only the number. Our EDC for longevity clinical trials page covers the wider healthy-ageing field, and the 6-minute walk test template shows how a timed performance test appears on an eCRF form.
Data model
| Data group | What is recorded | How it fits in Capture |
|---|---|---|
| Screening | Symptom questionnaire, eligibility, comorbidities, medications | Eligibility form, screening wizard and ePRO; consent before any procedure |
| Grip strength | Hand tested, dynamometer model, each trial value, best value | Site form with repeated trials as fields or table rows; calculated best or mean value |
| Chair stand and gait speed | Time for five rises, walking distance, time, aids used | Timed fields with ranges; edit checks for implausible values; calculated speed in m/s |
| Physical performance battery | Balance, gait and chair-stand components and a total score | Site form with component fields and a calculated total |
| Body composition | Appendicular lean mass, fat mass, scanner and software version | Imaging result form; scanner model recorded so results are comparable |
| Intervention log | Exercise sessions attended, intensity, protein or supplement intake | Session table at the site or a participant diary on the phone |
| Patient-reported outcomes | Function, quality of life, fatigue, activity | ePRO questionnaires, with licence details recorded where terms apply |
| Safety | Falls, fractures, injuries and other adverse events | Adverse event form, AESI and SAE workflow with audit trail |
Measurement quality
A grip strength reading depends on posture, handle setting and the number of trials. A gait speed depends on distance, start and whether a walking aid is used. If two sites differ on any of that, the pooled analysis carries noise that no statistician can fully remove later. Put the method on the form: record the instrument, the hand, each trial and any deviation. A dropdown with a coded list of deviations (aid used, pain limited effort, test not attempted for safety) is better than a free-text note, because you can count them.
Capture helps in three ways. Edit checks with a range and a priority raise an auto-query when a value is implausible, such as a gait speed that is physically impossible, so a transcription error is corrected within days rather than at database lock. Calculated fields derive the best of three trials or a speed from distance and time and show the result read-only during entry, so everyone uses the same arithmetic. And a site coordinator portal with by-site filtering and a separate rater role keeps multi-site data organised. For multi-site set-up, see the platform overview for site roles, and the schedule of assessments builder to plan which tests sit at which visit.
Many protocols require evidence that raters were trained on the test method. Keep the training log in your study documents and use the delegation log template to record who may perform which assessment.
Use the free sandbox with every feature. No credit card, no time limit, and you pay only when the study goes live.
Interventions
Sarcopenia trials often test resistance exercise, protein or amino acid supplementation, vitamin D or a drug candidate, alone or in combination. The data requirements change with the intervention. An exercise study needs a session log with attendance, intensity and progression, and a way to record sessions missed and why. A nutrition study needs an intake record and product traceability. A drug study needs dosing, supply accountability, randomisation and safety labs. Capture handles all of these within the same study, because they are forms, diaries and kit records, not separate systems.
For nutrition and supplement designs, see clinical trial software for nutrition research and EDC for supplement clinical trials. For placebo-controlled or sham-exercise arms, randomisation software covers allocation and blinded roles, which never receive treatment-arm values. For investigational products, IMP inventory and drug accountability describes kit dispensing and returns.
Setup
Let the AI study builder draft the visit schedule and forms from the PDF or DOCX. You review everything before it is saved.
Create grip, chair stand, gait and battery forms with typed fields, units and ranges. Add calculated fields for best value and speed.
Record the scanner, software version and the lean mass values the imaging unit returns.
Questionnaires open on the participant's phone from a link or QR code. Use eConsent with email OTP and countersignature.
Session or intake log, plus the adverse event form and falls items.
Enter sample data in the sandbox, then approve the forms. Approved forms are locked for live use.
Participants
Participants in these studies are often older, and a good design recognises that. Keep questionnaires short, avoid dense matrices on a phone screen, and use clear completion windows with a reminder ladder that sends a limited number of reminders and respects quiet hours. Offer a site-completed paper-equivalent route for anyone who cannot use a phone, entering the answers on the participant's behalf under the protocol's rules. Consent matters especially: allow time, offer a printed copy, and where the protocol allows, a Legally Authorized Representative signature. The ePRO page describes the questionnaire experience.
Falls deserve their own small form even when they are not formally adverse events. A monthly question about falls, injuries and fear of falling, plus an event form for any fall that needs care, gives you data that matter for the analysis and for safety review. Capture records every change with timestamp, user, old value, new value and reason, so a corrected falls date is visible, not silent.
Before you start
The consensus definition or protocol thresholds used for eligibility and endpoints, written down.
Instrument, posture, trial count, distance and aids defined and mirrored on every form.
Scanner, software version and the data file returned to the study.
Sessions, intake or dosing recorded in a form that fits the intervention.
Falls items, adverse event form and SAE workflow exercised in the sandbox.
Questionnaire licences recorded on participant forms; clinician-form licences kept with study documents.
CSV or Excel with data dictionary opens in your analysis software.
Responsibilities
Capture offers 21 CFR Part 11-aligned controls, a field-level audit trail, role-based access and EU (Frankfurt) or US (N. Virginia) hosting, and the sponsor remains responsible for validated use and for the protocol, ethics approval and regulatory submissions. This page is not medical, legal or regulatory advice and makes no efficacy claim about any intervention. For a first study, how to run a pilot study is a practical companion, and EDC for investigator-initiated trials covers the academic set-up.
Yes. Build site forms with typed fields, units and ranges for each trial, with calculated fields for best value or speed and edit checks that raise a query on implausible values.
No. Capture does not supply licensed instruments or verify licences. You build the forms from your protocol, and for participant questionnaires you can record licence details on the questionnaire.
Yes. Questionnaires open in the phone browser from a secure link or QR code, with no app and no password, plus reminders and completion windows.
Yes, as typed fields on an imaging result form, with the scanner and software version recorded. Capture stores the results; it does not analyse images.
Yes. Record sessions and intake on site forms or phone diaries, and use kit accountability and randomisation for supplements or investigational products.
The sandbox is free with every feature, no credit card and no time limit. You pay only when the study goes live with real participants.
Keep exploring
EDC for longevity clinical trials
Healthy-ageing designs.
6-minute walk test template
A timed performance form.
EDC for supplement clinical trials
Nutrition and supplement arms.
Clinical trial randomization software
Placebo and sham allocation.
ePRO software for clinical trials
Questionnaires on a phone.
Schedule of assessments builder
Plan tests by visit.
Free sandbox with every feature. No credit card, and you pay only when you go live.