Testing Guidance
Review the guidance below to understand the purpose of MVC testing for EMG normalisation and the key factors that influence how tests are performed and standardised.
Then use the tool below to explore MVC tests by muscle, movement or body region.
Why use an MVC?
MVC tests provide a reference contraction that can be used to normalise EMG amplitude. They control for differences in anatomy and sensor positioning, enabling meaningful comparisons between muscles, sessions, and people.
Joint angle specificity
Each of the included MVC tests is a recommended starting point for isolating the relevant muscle and maximising its activation. Where appropriate, consider adapting the test joint angle to better reflect the joint positions of the task being assessed.
Resistance method
The instruction for each test is for resistance to be provided manually by the practitioner, as this is the most practical and accessible approach. However, where equipment is available, some tests can be better standardised by fixing the resistance using, for example, straps, bands, weightlifting equipment, force frames, or isokinetic dynamometry.
Test execution
Complete MVC testing at the start of the assessment, following appropriate warm-up contractions. Ask the patient/client to contract “as hard as possible” for 3 to 5 seconds, providing strong verbal encouragement throughout. Perform three MVC attempts, with least 30 seconds of rest between each. Use the highest peak EMG amplitude from the three attempts as your reference for normalisation.
Keep it consistent
Clearly define and document your protocol. Joint positions, resistance method, cueing and rest periods should be kept consistent. This will ensure reliable MVCs which enable meaningful comparisons of your normalised data.
Explore MVC Tests
Search by muscle, test or movement, or select a body region to browse. This guide provides evidence-based guidance for commonly tested muscles and is not an exhaustive list of every muscle or MVC testing method.
Find an MVC test
Try: upper trap, shoulder flexion, heel raise, jaw clench, hamstrings, wrist extension.
Showing all MVC tests
Filter: All regions
No MVC tests found
Try a different muscle name, movement, body region or common term.
How this guide fits into your MyoLearn toolbox
MVC testing is only one part of building a reliable EMG assessment. Use the MVC Protocol Guide alongside MyoLearn’s other tools to support anatomy, sensor placement, evidence review and study design.
