Healthy young individuals
Conditions
Interventions
Participants will perform an arm curl training program twice weekly for 12 weeks. One arm will be trained under one shoulder joint angle condition, whereas the contralateral arm will be trained under
Sponsors
Ritsumeikan University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Healthy young adults
Exclusion criteria
Exclusion criteria: 1. Individuals who have performed elbow flexion training at least twice per week for 12 weeks or more within the past year, or who are currently engaged in such training. 2. Individuals with conditions that may interfere with study participation, including hepatic, renal, or cardiovascular diseases; respiratory disorders; endocrine or metabolic disorders; neurological disorders; disturbances of consciousness; vestibular dysfunction; sleep disorders; cardiovascular and circulatory diseases; diabetes mellitus (as defined by the criteria of the Japan Diabetes Society); or other conditions such as peripheral vascular reflex disorders, acute inflammation, skin diseases, or malignant tumors. 3. Individuals who have reported minor injuries within the past 4 weeks or severe musculoskeletal injuries within the past 6 months. 4. Individuals who are unable or unwilling to provide informed consent. 5. Individuals presenting with severe physical or mental conditions at the time of participation. 6. Individuals with a history of claustrophobia or panic disorder. 7. Individuals who are unable to remain at rest. 8. Individuals who are pregnant. 9. Individuals with a history of epileptic seizures. 10. Individuals with implanted medical devices such as cardiac pacemakers, defibrillators, or artificial heart valves. 11. Individuals with metal in their body (e.g., dental orthodontic bridges, crowns depending on material, clips, etc.). 12. Individuals with tattoos (as tattoo ink may react to magnetic fields). 13. Individuals with shoulder joint instability, including those previously diagnosed with shoulder instability or those experiencing pain, discomfort, or a sensation of looseness or dislocation in the shoulder. 14. Individuals who receive a deduction in the Japanese Orthopaedic Association (JOA) Shoulder Instability Score, excluding the radiographic assessment component.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Muscle volume | — |
Countries
Japan
Contacts
Public ContactSumiaki Maeo
Ritsumeikan University Faculty of Sport and Health Science
Outcome results
None listed