About this trial
Sports that require overhead activities (volleyball, tennis, basketball) include components such as rapid displacement, strength and movement control.Volleyball is also called as an overhead sport in terms of the way it is played. In the realization of these sports; Sub-parameters such as proprioceptive sense, strength, throwing rate, flexibility play a role. During these activities, the shoulder and elbow joints are overloaded. To meet this load, the joint must provide the necessary mobility and stability. Proprioceptive sense in increasing the quality and width of movement as well as providing dynamic joint stability in overhead sports; Increasing the range of motion of the joint, reducing muscle stiffness and thus increasing flexibility are effective in providing mobility. That's why it's important to develop them. Likewise, muscle strength should be increased in order to maintain movement performance and prevent injuries. The use of myofascial release techniques as an exercise method has increased in recent years. Application; The effects on parameters such as strength, performance and flexibility were investigated. Studies have focused more on the lower extremities and acute effects. There is no study on the subject examining proprioceptive sensation in volleyball players in the upper extremity. Therefore, our aim is to examine the chronic effects of the application on shoulder and elbow joint mobility, sensorimotor function and performance.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Being playing volleyball
Training at least two hours a week Being between the ages of 13-40
Full active movement of the shoulder and elbow in all directions
To have at least 3 years of overhead sports activity (volleyball) (Kurt, 2022)
Disqualifiers
Not wanting to participate in the study and not being able to fulfill its requirements
History of upper extremity injury in the last 1 year
Any history of surgery or fracture in the upper extremity
The occurrence of pain during evaluations and applications
Trial design
Parallel
Treatments tested in this trial
Myofascial Release Techniques
Other interventionVolleyball players will perform these practices with a physiotherapist 3 days a week for 8 weeks (24 sessions), and their routine sports training will continue. Participants in the group will be shown how to use rolling materials. The application will be performed as 2 sets in a session using the body weight of the person, as 10 rolls in 1 minute. The application time will be 2 minutes in total for each session. There will be 30 seconds of rest between sets. The participation rate limit for the sessions was determined as 80%. The application rate will be controlled with a metronome. The pressure to be created using body weight will be controlled by a numerical pain scale. The technique will be applied to the biceps brachii, latissimuss dorsi, upper trapezius, pectoralis minor, pectoralis major, and thoracic extensor muscles. During the application, a foam roller and a rolling stick (Thera-Band, Hygienic Corporation, Akron, OH) will be used.
Sham myofascial release technique
Other interventionIt was planned to apply the sham myofascial release technique to the athletes in the control group. In this application; with the help of the palm of the hand, pressure will be applied to the surface of the relevant muscles, first without pressure for 1 minute, then after resting for 30 seconds. The given pressure will be 2 out of 10 (0: No pain/discomfort due to pressure, 10: Unbearable pain/discomfort due to pressure). This group will also be given the right to receive a myofascial relaxation program which the experimental group received, after the study period ended.
Treatment groups
Trial outcomes
Primary outcomes
Proprioception (elbow and shoulder)
Change of biceps brachii and shoulder internal rotation joint position sense (with digital inclinometer in degree) (Target angel:Elbow:45 degree, shoulder:45 degree). The target angles to be tested will be taught by the investigators with eyes open 3 times and eyes closed 3 times. The participant will then be asked to bring it to the target angle with their eyes closed. The deviation value from the target angle will be recorded.
Muscle Strength (elbow and shoulder)
Change of biceps brachii and shoulder internal rotation isometric strength (in kg, with hand held dynamometer).The average of three consecutive repetitions will be recorded.
Mobility (shoulder)
Change of shoulder mobility (shoulder (internal and external rotation) range of motion, Back Scratch test:The distance between the middle fingers will be recorded in cm.). Measurements will be made 3 times, the average of the measured values will be recorded.
Performance (Speed)
Change of shoulder and elbow performance (Dunk speed test with sportive radar). The tests will be conducted by measuring the maximum slam speed using a volleyball. The ball is thrown from a height of 2 to 3 meters by the coach. Participants dunk the ball into the net without touching the net and without occupying the opponent's court. Participants will be asked to practice 3 spikes at their maximum strength. The average of the three values will be taken. (km/h)
Secondary outcomes
Well-Being
Change of participants well-being (Likert type well-being test) (Minimum:7 points, maximum: 35 points). The well-being of the participants will be evaluated with a 7-item questionnaire (fatigue, stress, sleep, muscle pain, enjoyment of training/exercise training, irritability and health). Scoring on a 5-point Likert scale will be required for each item. A total score between 7 and 35 will be calculated.
Performance
Change of shoulder and elbow performance (closed kinetic chain upper extremity stability test). Participants will be in a push-up position, the distance between the two hands will be adjusted to be 90 cm, then the number of repetitions completed within 15 seconds will be recorded by extending one hand towards the other hand. The test will be repeated 3 times and the average will be taken.
Mobility
Change of elbow (flexion-extension) range of motion, upper trapezius muscle length (With the test, muscle length will be recorded as short or normal) and pectoralis minor muscle length (For the pectoralis minor muscle, the length of the muscle, the distance from the junction of the sternum with the fourth rib (caudal edge) to the corocoid process, will be measured with a tape measure when the participant is standing and the upper extremity is in a free position. Three measurements will be made and the average of these measurements will be recorded in cm)
Muscle Strength
Change of triceps brachii and shoulder external rotation isometric strength (in kg, with hand held dynamometer). The average of three consecutive repetitions will be recorded.
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