About this trial

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.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

engage in regular physical activity, such as sports or dance

Disqualifiers

neuromuscular disorders

conditions that affect muscle function

Trial design

Design model

Single group

Treatments tested in this trial

Surface Electromyography
Diagnostic test
The 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.

Treatment groups

27 Participants

are divided into 1 treatment group

Group A: FatigueExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

sEMG median power frequency (MPF) - test

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

Time frame

first test session at day 1

2

sEMG median power frequency - retest

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

Time frame

second test session after 1 week

3

sEMG RMS amplitude - test

A single value that represents the magnitude of the sEMG signal over a specified period of time, higher RMS values indicate greater muscle activation.

Time frame

first test session at day 1

4

sEMG RMS amplitude - retest

A single value that represents the magnitude of the sEMG signal over a specified period of time, higher RMS values indicate greater muscle activation.

Time frame

second test session after 1 week

Secondary outcomes

1

VAS score - test

subjective fatigue score

Time frame

first test session at day 1

2

VAS score - retest

subjective fatigue score

Time frame

second session after 1 week

Other outcomes

1

Age

age in years

Time frame

first test session at day 1

2

Gender

male/female/other

Time frame

first session

3

Height

body height in centimeters

Time frame

first test session at day 1

4

Weight

body weight in kilograms

Time frame

first test session at day 1

Test-retest Reliability of sEMG to Measure Fatigue in Adolescents

About this trial

Eligibility criteria

Qualifiers

Disqualifiers

Trial design

Treatments tested in this trial

Treatment groups

Trial outcomes

Primary outcomes

Secondary outcomes

Other outcomes

Sponsors and contacts