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OpenTrials
Completed

NCT Number: NCT03893994

Effect Of Stretching Programme On Shoulder Performance In Volleyball Players With Posterior Shoulder Tightness

When the dominant arm is compared with the non-dominant arm in overhead athletes there is a serious internal rotation limitation in the dominant arm. Due to overhead activity, adaptive changes in shoulder joint mobility and flexibility are indicated. Internal rotation limitation is often associated with increased external rotation. One of the reason of this adaptive change is posterior shoulder tightness which is common in overhead athletes as well as in volleyball players. The aim of this study is to determine the effect of stretching program on the range of motion, flexibility of posterior shoulder muscles and functional performance.

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Key information

Conditions

Posterior Shoulder Tightness

Age range

18 year–30 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Turkish Volleyball Federation

Ankara, 06512, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Posterior shoulder tightness ( 15 degree internal rotation limitation compared with non dominant side)
  • Being a professional volleyball player ( at least 3 years experience in the professional league)
  • At least having 4 training days in a week
  • negative impingement tests ( Hawkins, Neer or Jobe)
  • No shoulder pain

Exclusion criteria

  • Having any shoulder surgery
  • Having a shoulder injury in last 6 months
  • Having any neck problem or neck pain
  • Having a systemic illness
  • Sublocated shoulder

Treatment and study plan

Stretching exercises

Other

Stretching exercises will be applied 6 days a week, 30sec / 5 reps

Primary outcomes

  1. Mean change from baseline in shoulder internal ROM measurement with digital inclometery at 6 weeks

    Time frame: 6 weeks

    Passive shoulder internal rotation gain which is measured with digital inclometery

Secondary outcomes

  1. Mean change from baseline in muscle hardness (kPA) with elastography at 6 weeks

    Time frame: 6 weeks

    Elastrography will be used to measure muscle hardness (kPA)

  2. Mean change from baseline in distance scores on single arm shot put test at 6 weeks

    Time frame: 6 weeks

    Single arm shot put test will be used to assess arm power. Distance will be measured in cm.

  3. Mean change from baseline in velocity (km/h) of spike with radar at 6 weeks

    Time frame: 6 weeks

    Spike velocity will be measured with radar (km/h)

  4. Mean change from baseline in strength ( Nm/kg) of shoulder internal rotation and external rotation at 6 weeks

    Time frame: 6 weeks

    Isokinetic measurements of internal and external shoulder rotation (Nm/kg) at 60 degree/ Sec and 180 degree/ Sec speed will be done.

Sponsors and collaborators

Lead sponsor

Hacettepe University

Other

Registry information

Important dates

Study start
2019
Primary completion
2020
Study completion
2020
First posted
Mar 28, 2019
Registry last updated
Apr 21, 2020

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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