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Completed

NCT Number: NCT07138950

Fexibility and Jump Performance

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.

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Key information

Conditions

Hamstring Muscle Tightness Jump Performance Mulligan Mobilization Static Stretching

Age range

18 year–30 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Süleyman Demirel Üniversitesi Sağlık Bilimleri Fakültesi

Isparta, Merkez, 38500, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

Mulligan Bent Leg Raise (BLR) Technique

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

Static Stretching

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

Primary outcomes

  1. vertical jump

    Time frame: through study completion, an average of 5 months

  2. Active Knee Extension Test

    Time frame: through study completion, an average of 5 months

  3. one leg hop test

    Time frame: through study completion, an average of 5 months

Sponsors and collaborators

Lead sponsor

Suleyman Demirel University

Other

Registry information

Official study title

Hamstring Kasına UygulananStatik Germe ve Mulligan Bent Leg Raise Tekniğinin Fleksibilite ve Sıçrama Performansı Üzerine Akut Etkisi

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Aug 24, 2025
Registry last updated
Aug 24, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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