Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT06417970 |
Other study ID # |
Voleybolcu Omuz |
Secondary ID |
|
Status |
Completed |
Phase |
|
First received |
|
Last updated |
|
Start date |
January 2, 2024 |
Est. completion date |
May 24, 2024 |
Study information
Verified date |
May 2024 |
Source |
Suleyman Demirel University |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
Improvement of proprioception in athletes has been found to be effective in preventing fear
of movement. The importance of these parameters has not been sufficiently emphasized in
volleyball players. In addition, the relationship between upper extremity proprioception and
the sense of touch, which is an important component of the somatosensory system, and common
anxiety states in athletes has not been evaluated. Therefore, the aim of our study was to
investigate the relationship between shoulder joint proprioception and psychometric
parameters, kinesiophobia and palmar tactile sensation in volleyball players.
Description:
The study will not include any intervention program. Volleyball players who are volleyball
players in their school team and volleyball players who apply to the Sports Medicine
Polyclinic with a general health examination or lower extremity injury complaint will be
invited to the study. Volleyball players between the ages of 18-30, who meet the inclusion
criteria and consent to participate will be included in the study. At the beginning, the
participants will be informed and if they volunteer, they will sign an informed consent form.
The demographic data of the participants will be filled in on a form prepared by the
researchers.
The parameters to be evaluated during the study are glenohumeral joint proprioception
measurements (internal rotation, external rotation), Athlete Psychological Strain
Questionnaire, Tampa Kinesiophobia Questionnaire and palmar tactile sensation measurement
with Semmes-Weinstein Monofilament.
Glenohumeral joint proprioception measurements: Visual input is eliminated with a blindfold
while the participant is in a seated position with the arm in 90° abduction and elbow in 90°
flexion. The measurement reference angles are 30° and 60°. The upper extremity will be moved
passively from the neutral position in the direction of internal and external rotation up to
the reference angle. It will be held at the reference angle for 10 seconds and then passively
moved back to the neutral position. The speed of the dynamometer will be set to 0.5°/s. The
participant will then be instructed to repeat the position in which the upper limb was
previously placed, taking into account the reference angle. After the learning trial, the
average of the absolute error of the three test trials will be recorded as the position sense
test result.
Athlete Psychological Strain Questionnaire: This questionnaire will be used to measure
sport-specific psychological tension. It consists of 10 items and each item is scored on a
5-point Likert scale (1=never to 5=always) and assesses self-regulation (e.g. "I felt less
motivated"), performance (e.g. "I found training more stressful") and external coping (e.g.
"I took unusual risks off the field"). The minimum score is 10, while the maximum score is
50. Higher scores indicate greater psychological strain.
Tampa kinesiophobia questionnaire: This questionnaire measures fear of movement/reinjury. It
consists of 17 items and the normal score range is between 17 and 68. A lower score indicates
a better condition.
Palmar tactile sensation: Palmar tactile sensation will be measured with the Semmes-Weinstein
Monofilament. The tested hand will be placed on a towel and hidden behind a screen with the
forearm supinated. Monofilaments will be placed in contact with the tip of the thumb (median
nerve), the tip of the little finger (ulnar nerve) and between the index finger and thumb on
the dorsal side of the hand (radial nerve). Patients will be asked to verbally answer "Yes"
when they feel touched by the monofilaments. The monofilament will be applied perpendicular
to the skin until it is slightly bent for 1.5 seconds. The measurement time (approach,
pressure and withdrawal of the monofilament) will not exceed 3 seconds and the test will
start with the thinnest monofilament (lowest pressure) and end when at least 1 positive
response is collected from 3 trials.
The power analysis of the study was performed with the program GPower 3.1.9.7 (Universitaet
Kiel, Germany). In the study, the correlation value between the Y-Balance Test Inferolateral
and Internal Rotation Active Joint Position Sensation measurements calculated in
Mendez-Rebolledo et al. (2022), r=-0.57, was used. Accordingly, test family "Exact" and
analysis type "Correlation: Bivariate normal model" were selected. The explanatory
coefficient R2=0.33 and the alternative hypothesis effect size was calculated as 0.574. The
sample size was determined as n=33 with a two-way table value, 95% power and 5% type-I margin
of error.