Fexibility and Jump Performance

NCT ID: NCT07138950

Last Updated: 2025-08-24

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 42 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-01-01
• Study Completion Date: 2025-05-05

Brief Summary

This study was conducted to compare the effects of the static and Mulligan bent leg raise (BLR) techniques applied to address hamstring tightness on jumping performance. Participants with hamstring tightness participated in the study and were randomized into two groups. Group 1 (Classic Stretching Group) underwent a 30-second hamstring stretching protocol consisting of 5 repetitions. Participants in Group 2 underwent the BLR technique. Participants' active knee extension, vertical jump, and single-leg horizontal jump were measured before and after the study.

Conditions

Hamstring Muscle Tightness; Static Stretching; Mulligan Mobilization; Jump Performance

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: OTHER
• Blinding Strategy: DOUBLE

Study Groups

BLR

Group Type: OTHER

Mulligan Bent Leg Raise (BLR) Technique

Intervention Type: OTHER

The Mulligan bent leg raise technique involves isometric contraction followed by stretches applied to the hamstring muscle in specific directions. The aim is to increase hamstring flexibility and active knee extension range of motion. The participant lay supine on an elevated bed, while the physiotherapist sat lateral to the leg to be stretched, placing the popliteal fossa of the participant's knee on their shoulder. The hip and knee of the leg to be stretched were flexed to 90°. Distraction was applied to the lower end of the femur, and the participant was asked to push the physiotherapist's shoulder with their leg and then relax. At this point of relaxation, the physiotherapist pushed the flexed knee as far forward as possible in the direction of hip flexion within a painless range. This position was held for 5 seconds at the end of the movement. Then, the neutral position was returned, and the procedure was repeated three times

SS

Group Type: ACTIVE_COMPARATOR

Static Stretching

Intervention Type: OTHER

Participants lay supine on a stretcher with their backs straight. With the knee fully extended, the physical therapist placed the participant's leg on their shoulder and supported the ankle

Interventions

Mulligan Bent Leg Raise (BLR) Technique

The Mulligan bent leg raise technique involves isometric contraction followed by stretches applied to the hamstring muscle in specific directions. The aim is to increase hamstring flexibility and active knee extension range of motion. The participant lay supine on an elevated bed, while the physiotherapist sat lateral to the leg to be stretched, placing the popliteal fossa of the participant's knee on their shoulder. The hip and knee of the leg to be stretched were flexed to 90°. Distraction was applied to the lower end of the femur, and the participant was asked to push the physiotherapist's shoulder with their leg and then relax. At this point of relaxation, the physiotherapist pushed the flexed knee as far forward as possible in the direction of hip flexion within a painless range. This position was held for 5 seconds at the end of the movement. Then, the neutral position was returned, and the procedure was repeated three times

Intervention Type: OTHER

Static Stretching

Participants lay supine on a stretcher with their backs straight. With the knee fully extended, the physical therapist placed the participant's leg on their shoulder and supported the ankle

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Diagnosis of hamstring muscle tightness.

Exclusion Criteria

• Having any functional limitations that could affect test performance.
• Having any medical conditions that could affect the tests.
• Having more than 25° of limitation in the active knee extension test.
• Any lower extremity injury history within 2 years.
• Any neurological problem.
• Corticosteroid use.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 30 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Suleyman Demirel University

OTHER

Sponsor Role: lead

Responsible Party

Tahir Keskin , Pt, PhD

Assistant Professor Tahir KESKİN

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Süleyman Demirel Üniversitesi Sağlık Bilimleri Fakültesi

Isparta, Merkez, Turkey (Türkiye)

Countries

Turkey (Türkiye)

Other Identifiers

mulligan and jump performance

Identifier Type: -

Identifier Source: org_study_id