Universiteit Antwerpen, Department of Rehabilitation Sciences and Physiotherapy, Research group MOVANT
Wilrijk, 2610, Belgium
Location status: Recruiting
Recruiting
NCT Number: NCT07161531
Test-retest Reliability of sEMG to Measure Fatigue in Adolescents
This cross-sectional study aims to determine the test-retest reliability of surface electromyography (sEMG) outcomes in detecting levels of fatigue among healthy adolescents engaged in physical activities. It seeks to evaluate the consistency of sEMG parameters across two test sessions and correlate these measurements with both performance metrics and subjective fatigue assessments.
Participants will perform repetitive squatting until volitional exhaustion while their muscular activity is recorded. They will do so on two different test sessions with an interval of one week in between.
Recruiting
Interested in participating?
Request InfoKey information
Conditions
Age range
13 year–19 year
Sex eligibility
All sexes
Study type
Interventional
Phase
Not applicable
Primary location
Who can participate
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
- engage in regular physical activity, such as sports or dance
Exclusion criteria
- neuromuscular disorders
- conditions that affect muscle function
Treatment and study plan
Surface Electromyography
Diagnostic TestThe primary lower limb muscles to be monitored include the gluteus medius, rectus femoris, vastus lateralis (quadriceps ), biceps femoris (hamstrings), tibialis anterior, and gastrocnemius medialis (calves). This setup fully utilizes a 16-channel sEMG system by monitoring each muscle group bilaterally to capture comprehensive data on muscle activity and fatigue.
Primary outcomes
-
sEMG median power frequency (MPF) - test
Time frame: first test session at day 1
A parameter used to analyze the frequency content of the electrical signals generated by muscle activity. Changes in the MPF can indicate alterations in muscle fiber recruitment and metabolic changes during sustained muscle contractions
-
sEMG median power frequency - retest
Time frame: second test session after 1 week
A parameter used to analyze the frequency content of the electrical signals generated by muscle activity. Changes in the MPF can indicate alterations in muscle fiber recruitment and metabolic changes during sustained muscle contractions
-
sEMG RMS amplitude - test
Time frame: first test session at day 1
A single value that represents the magnitude of the sEMG signal over a specified period of time, higher RMS values indicate greater muscle activation.
-
sEMG RMS amplitude - retest
Time frame: second test session after 1 week
A single value that represents the magnitude of the sEMG signal over a specified period of time, higher RMS values indicate greater muscle activation.
Secondary outcomes
-
VAS score - test
Time frame: first test session at day 1
subjective fatigue score
-
VAS score - retest
Time frame: second session after 1 week
subjective fatigue score
Other outcomes
-
Age
Time frame: first test session at day 1
age in years
-
Gender
Time frame: first session
male/female/other
-
Height
Time frame: first test session at day 1
body height in centimeters
-
Weight
Time frame: first test session at day 1
body weight in kilograms
-
Leg length
Time frame: first test session at day 1
Length measured from trochanter major to the ground in centimeters
-
Physical Activity
Time frame: first test session at day 1
PAQ-A (physical activity questionaire for adolescents): a self-administered, 7-day recall instrument. It was developed to assess general levels of physical activity for high school students in grades 9 to 12 and approximately 14 to 19 years of age.
Study contacts
Contact information is provided by the study sponsor or research team.
Sponsors and collaborators
Lead sponsor
Universiteit Antwerpen
Other
Registry information
Official study title
Evaluating Test-Retest Reliability of Surface Electromyography (sEMG) in Measuring Fatigue in Adolescents Through Prolonged Activity
Important dates
- Study start
- 2025
- Primary completion
- 2025
- Study completion
- 2026
- First posted
- Sep 8, 2025
- Registry last updated
- Sep 8, 2025
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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