EFFECT OF ECCENTRIC AND CONCENTRIC EXERCISE PROGRAMS For HAMSTRING GRADE INJURIES

NCT07143994 | Completed

• 1 other identifier: hamstring eccentring
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

Hamstring injuries are common and recurrent in both elite and recreational athletes, often leading to prolonged absence from sports. The aim of this study is to compare the effects of eccentric and concentric exercise programs on the recovery of elite athletes diagnosed with grade II hamstring strain. Pain, flexibility, muscle strength, balance, and return-to-sport duration will be evaluated to determine the impact of different exercise modalities. Dynamic balance assessment will also be performed before and after treatment. The two intervention groups will be compared using the Wilcoxon test, with p\<0.01 considered statistically significant. This study is expected to provide evidence on which exercise program is more effective in facilitating return to sport and to contribute to improved rehabilitation strategies in future athletic injuries.

Conditions

Hamstring Injuries

Keywords

grade 2 muscle injury; eccentric exercise; concantric exercise; balance

Outcome Measures

Primary Outcomes (1)

• Time to Return to Sport

  he duration (in days) from the start of the rehabilitation program until the athlete meets all return-to-play criteria, including complete pain relief, sufficient muscle strength, joint mobility, flexibility, running and gait analysis, physical fitness, balance, dynamic functional performance, lumbopelvic motor control, and subjective readiness reported by the athlete.

  From baseline until return to sport, up to 12 weeks

Study Arms (2)

Eccentric Exercise Program

EXPERIMENTAL

Elite athletes with grade II hamstring strain will undergo a structured rehabilitation protocol consisting of eccentric strengthening exercises. The program is designed to improve hamstring flexibility, strength, dynamic balance, and facilitate safe return to sport.

Other: eccentric exercise

Concentric Exercise Intervention

EXPERIMENTAL

Elite athletes with grade II hamstring strain will undergo a structured rehabilitation protocol consisting of concentric strengthening exercises. The program is designed to enhance hamstring flexibility, muscle strength, dynamic balance, and assist in safe return to sport.

Other: concentric exercise

Interventions

eccentric exercise OTHER

This study's interventions are distinguished by the specific application of eccentric and concentric exercise programs tailored for elite athletes with grade II hamstring strains.

Eccentric Exercise Program

concentric exercise OTHER

This study's interventions are distinguished by the specific application of eccentric and concentric exercise programs tailored for elite athletes with grade II hamstring strains.

Concentric Exercise Intervention

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Participants over 18 ,who are elite athlete and contunie currently active sports life,and . Those with MRI findings showing hamstring grade II strain,who does not have any systemic or mental disease volunteerly participated in the study.

You may not qualify if:

• Participants who are having severe visual impairment and perception impairment, who has pain preventing to test,who has neurologic problems ans who has a history of injury for 6 months were excluded.

Sponsors & Collaborators

• Yeditepe University: lead

Study Sites (1)

HANTAL

Istanbul, Kartal, 34755, Turkey (Türkiye)

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Asst.Prof

Study Record Dates

• First Submitted: August 20, 2025
• First Posted: August 27, 2025
• Study Start: February 20, 2018
• Primary Completion: January 1, 2024
• Study Completion: June 17, 2024
• Last Updated: August 27, 2025

Record last verified: 2025-08

Locations

TU (1)