Tokyo, June 4 -- UMIN Clinical Trials Registry (UMIN-CTR) received information related to the study (UMIN000061785) titled 'The effects of calf raises with different muscle contraction patterns on the morphological characteristics of the Achilles tendon: Examination under low and high load conditions' on June 3.

Study Type: Interventional

Study Design: Basic Design - Cross-over Randomization - Randomized Blinding - Open -but assessor(s) are blinded Control - No treatment

Primary Sponsor: Institute - Prefectural University of Hiroshima

Condition: Condition - Healthy adult Classification by malignancy - Others Genomic information - NO

Objective: Narrative objectives1 - To examine the effects of concentric calf raises and ecsentric calf raises on the morphological characteristics of the Achilles tendon under different loading conditions (self-weight loading and 120% self-weight loading). Basic objectives2 - Efficacy

Intervention: Interventions/Control_1 - eccentric calf raises Interventions/Control_2 - concentric calf raises

Eligibility: Age-lower limit - 18 years-old

Gender - Male and Female Key inclusion criteria - Healthy university student Key exclusion criteria - Achilles tendon pain History of Achilles tendon disorder Systemic disorders affecting collagen metabolism Allergic reaction to echogel Target Size - 18

Recruitment Status: Recruitment status - Open public recruiting Date of protocol fixation - 2026 Year 06 Month 03 Day Date of IRB - 2026 Year 06 Month 01 Day Anticipated trial start date - 2026 Year 06 Month 03 Day Last follow-up date - 2026 Year 12 Month 31 Day

To know more, visit https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000070709

Disclaimer: Curated by HT Syndication.