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Completed

NCT Number: NCT06897826

Effect of Hamstring Stretching on Cervical Flexor Muscle Endurance

The superficial posterior line is one of the eight main fascial lines defined on the body. One of the important muscle groups on this line is the hamstring muscle group. Studies have shown that various stretching methods applied to the hamstring muscle group affect the cervical region both in terms of range of motion and posture. As a result of this study, it was shown that deep neck flexor endurance increased in women who applied the PNF hold-relax method.

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Key information

Conditions

Healthy

Age range

18 year–24 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Bolu Abant Izzet Baysal University

Bolu, Merkez, 14030, Turkey (Türkiye)

About this study

The superficial posterior line is one of the eight main fascial lines defined on the body. One of the important muscle groups on this line is the hamstring muscle group. Studies have shown that various stretching methods applied to the hamstring muscle group affect the cervical region both in terms of range of motion and posture. Our aim in our study is to examine the effect of the proprioceptive neuromuscular stretching (PNF) method applied to the hamstring muscle group on the endura of the deep neck flexors based on these data.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • being female
  • being healthy in musculoskeletal conditions

Exclusion criteria

  • being hypermobile

Treatment and study plan

Proprioceptive Neuromuscular facilitation

Other

The reason for choosing the proprioceptive neuromuscular facilitation technique is that it increases the hip flexion angle more than static stretching. Participants first lay down on the stretcher in a supine position. Then, the participant's lower extremity was lifted straight until the physiotherapist felt resistance. After reaching this position, the participant was asked to try to extend his lower extremity straight with half of his strength. After 10 seconds, the participant was given time to relax and after the participant relaxed, the lower extremity was brought to the new range of motion. This process was applied 3 times.

Primary outcomes

  1. Deep Neck Flexor Before and After

    Time frame: Two times in one day (before intervention, immediately after intervention)

    Deep neck flexor endurance changes before and after PNF hamstring stretch

Sponsors and collaborators

Lead sponsor

Abant Izzet Baysal University

Other

Registry information

Official study title

Acute Effect of Hamstring Stretching Performed With Proprioceptive Neuromuscular Facilitation Technique on the Endurance of Neck Deep Flexor Muscles in Healthy Women

Important dates

Study start
2022
Primary completion
2023
Study completion
2024
First posted
Mar 27, 2025
Registry last updated
Mar 27, 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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