Tokyo, April 18 -- UMIN Clinical Trials Registry (UMIN-CTR) received information related to the study (UMIN000061302) titled 'Effects of arm curl training performed at different muscle lengths on elbow flexor muscle hypertrophy' on April 18.

Study Type: Interventional

Study Design: Basic Design - Parallel Randomization - Randomized Blinding - Open -but assessor(s) are blinded Control - Active

Primary Sponsor: Institute - Ritsumeikan University

Condition: Condition - Healthy young individuals Classification by malignancy - Others Genomic information - NO

Objective: Narrative objectives1 - This study aims to examine the effects of arm curl training performed at different muscle lengths on elbow flexor muscle hypertrophy. Basic objectives2 - Efficacy

Intervention: Interventions/Control_1 - 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 a different shoulder joint angle condition. Each training session will be performed with a prescribed number of repetitions and sets for each arm. Interventions/Control_2 - 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 a different shoulder joint angle condition. Each training session will be performed with a prescribed number of repetitions and sets for each arm.

Eligibility: Age-lower limit - 18 years-old = Gender - Male and Female Key inclusion criteria - Healthy young adults Key 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. Target Size - 20

Recruitment Status: Recruitment status - Suspended Date of protocol fixation - 2025 Year 06 Month 06 Day Date of IRB - 2025 Year 10 Month 14 Day Anticipated trial start date - 2025 Year 10 Month 20 Day Last follow-up date - 2027 Year 03 Month 31 Day

To know more, visit https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000070143

Disclaimer: Curated by HT Syndication.