Effects of Eccentric Contraction Exercise Using Closed Kinetic Chain on the Muscle Length, Activity and Elasticity of the Hip Flexors

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

CRIS

Registry ID

KCT0011647

Enrollment

Registered

2026-02-25

Start date

2026-03-09

Completion date

Unknown

Last updated

2026-03-02

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

Conditions

None listed

Interventions

Others(Exercise intervention (physical therapy)) : All interventions will be conducted for no more than 15 minutes per session, 3 times a week, for 6 weeks. 1) Stretching Group The subject lies in a

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Adults (male and female) between the ages of 20 and 40 2. Individuals with confirmed shortening of the rectus femoris muscle based on the Modified Thomas Test 3. Individuals who understand the study's purpose and methods and have voluntarily signed the informed consent form 4. Individuals capable of participating regularly in a 3-times-a-week, 6-week intervention program 5. Individuals capable of independent ambulation

Exclusion criteria

Exclusion criteria: 1. Individuals with a history of surgery in the lower back, pelvis, hip, knee, or ankle within the last 6 months 2. Individuals currently experiencing acute pain (VAS 7 or higher) in the lower back or lower extremities 3. Individuals with neurological disorders (e.g., stroke, spinal cord injury, peripheral neuropathy, etc.) 4. Individuals with structural deformities or severe degenerative diseases of the hip, knee, or ankle joints 5. Pregnant women or women who may be pregnant 6. Individuals who have participated in a similar exercise intervention program within the last 3 months 7. Individuals with contraindications for using the measurement equipment (e.g., skin disease or open wounds on the measurement sites) 8. Individuals whose exercise performance is limited due to cardiovascular disease 9. Individuals with cognitive impairment that may affect study participation 10. Individuals judged by the researcher to be unsuitable for the study

Design outcomes

Primary

Measure	Time frame
Muscle length of hip flexors (rectus femoris);Muscle tone of hip flexors (rectus femoris);Muscle activity of hip flexors (rectus femoris)	—

Secondary

Measure	Time frame
Dynamic knee valgus angle during a single-leg squat	—

Countries

Korea, Republic of

Contacts

Public ContactDonghyun Kim

Yeungnam University

isaramjeosaram@gmail.com+82-53-764-7801

Outcome results