Improvement of Motor Tasks: Effects of Verbal Encouragement and Music
- Conditions
- Healthy
- Interventions
- Other: Isometric Task
- Registration Number
- NCT06408155
- Lead Sponsor
- Universita degli Studi di Genova
- Brief Summary
This study employed a randomized crossover design to assess the impacts of three different experimental conditions-standard environment, music, and verbal encouragement-on performance in an isometric endurance task, with comparisons made between untrained and trained individuals. Interventions were spaced seven days apart. Measurements included muscle activity and fatigue, assessed via surface electromyography, and the duration of the task.
The isometric endurance task required participants to maintain a 90° elbow flexion while holding a dumbbell in a supine grip, weighted to 80% of their one-repetition maximum, on the dominant side. During the task, participants were to keep their back and head against a vertical wall, stand with feet shoulder-width apart, and firmly on the ground. The dumbbell was held with the dominant arm, and the other arm was kept neutral by the side. It was crucial to avoid any rocking or movements that would ease maintaining the position. The test began when the bar was handed to the participant in the correct stance and concluded once the arm's angle deviated by more than five degrees from the start.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 30
- Good general health,
- No medical conditions that could interfere with their ability to perform the test safely and effectively.
- To be considered exercised, participants had to have performed 150 minutes per week of vigorous intensity aerobic physical activity, in addition to muscle strengthening activities, for at least two days per week. Those who did not meet this standard were considered untrained.
- History of surgery on the arm, shoulder or adjacent areas that could limit the ability to perform the test.
- Use of medication that affects muscle function or pain perception
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Arm && Interventions
Group Intervention Description Task with verbal encouragement Isometric Task Endurance isometric exercise performed with verbal encouragement Task 2 without motivational feedback Isometric Task Task without motivational feedback Task 1 without motivational feedback Isometric Task Task without motivational feedback Task with music Isometric Task Endurance isometric exercise performed with music
- Primary Outcome Measures
Name Time Method Neuromuscular excitation of Biceps Brachii Through task completion, an average of sixty seconds Amplitude of electromyography value (Root Mean Square in microvolt) measured for Biceps Brachii muscle
Duration of the task Through task completion, an average of sixty seconds task duration expressed in seconds
Neuromuscular fatigue of Biceps Brachii Through task completion, an average of sixty seconds Time-course evolution of the Median Frequency of the Power Density Spectrum (MF Hz) of the electromyography signal measured for biceps brachii muscle
Neuromuscular fatigue of Brachioradialis Through task completion, an average of sixty seconds Time-course evolution of the Median Frequency of the Power Density Spectrum (MF Hz) of the electromyography signal measured for Brachioradialis muscle
Neuromuscular excitation of Brachioradialis Through task completion, an average of sixty seconds Amplitude of electromyography value (Root Mean Square in microvolt) measured for Brachioradialis muscle
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Università degli Studi di Genova
🇮🇹Genova, Italy