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.

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. - 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.

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000061785

Enrollment

Registered

2026-06-03

Start date

2026-06-03

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy adult

Interventions

eccentric calf raises concentric calf raises Unintervention or normal calf raises

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Healthy university student

Exclusion criteria

Exclusion criteria: Achilles tendon pain History of Achilles tendon disorder Systemic disorders affecting collagen metabolism Allergic reaction to echogel

Design outcomes

Primary

Measure	Time frame
Morphology of the Achilles tendon	—

Secondary

Measure	Time frame
Ankle joint range of motion Foot morphology	—

Countries

Japan

Contacts

Public ContactKazunori Okamura

Prefectural University of Hiroshima Faculty of Health and Welfare

k-okamura@pu-hiroshima.ac.jp0848601177

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026