Clinical Trial Details
— Status: Completed
Administrative data
| NCT number |
NCT05559216 |
| Other study ID # |
1185180 |
| Secondary ID |
|
| Status |
Completed |
| Phase |
N/A
|
| First received |
|
| Last updated |
|
| Start date |
August 31, 2022 |
| Est. completion date |
September 1, 2023 |
Study information
| Verified date |
March 2024 |
| Source |
Istanbul University |
| Contact |
n/a |
| Is FDA regulated |
No |
| Health authority |
|
| Study type |
Interventional
|
Clinical Trial Summary
Plyometric exercises are used in many sports branches to increase sportive performance and
neuromuscular coordination. It is known that side values such as the time to reach peak
torque next to muscle strength, which is one of the evaluations of sportive performance, are
also important. Our aim with this study is; To evaluate the effects of plyometric exercises
on proprioception, time to peak torque and performance in young female basketball players by
training the dominant and non-dominant upper extremity on these parameters.
Description:
Basketball is one of the most popular indoor games in the world, played in almost every
region without exception. It includes skillful movement that includes shooting, defense and
dribbling. Compared to other team sports, the main differences demanded by basketball players
during training and matches are faster and shorter accelerations and decelerations, explosive
deflections, jumps, and various potentially traumatic contacts between players. a basketball
shot; consists of preparation, raising the ball, stability, release and follow-up. During
overhead sports, the shoulder must accept the high joint loads produced by the lower
extremity and trunk and efficiently transfer this energy to the upper extremity along the
kinetic chain. The articulations of the shoulder complex provide a range of motion for the
shoulder joint and allow complex movements such as throwing. This mobility depends on the
controlled and synchronized movement of the shoulder joints. Shoulder flexion prior to ball
release has been reported to be an important factor for increasing ball release height.
Plyometric exercises are drills or exercises that aim to combine shear strength with
explosive reactive movement type. Plyometric exercises involve rapid stretching (i.e.
lengthening) of a muscle just before a rapid concentric contraction. This combined action is
commonly referred to as the stretch-shorten cycle (SSC). Pre-stretching is the most important
stage of plyometric activity, because it increases the excitability of neurological
receptors, which increases the reactivity of the neuromuscular system. Swanik et al.
suggested that plyometric activities may facilitate neural adaptations that increase
proprioception, kinesthesia, and muscle performance characteristics. The ability to rapidly
generate torque is an important skill in most athletic studies, and it has been suggested
that assessment of muscle recruitment patterns in athletes (such as time to peak torque)
provides better indicators of functional performance than assessment of peak torque alone.
Sudden movements in the joints require a rapid muscle contraction capacity to stabilize it.
Parameters such as acceleration time and time to peak torque have been established in the
literature as muscle recruitment variables that provide valuable information regarding
neuromuscular readiness to produce maximal contractions. The time to peak torque (in
milliseconds), reflecting muscle coordination, is defined as the time from initial
contraction to peak torque during muscle contraction. Therefore, TPT data can be used
synonymously with contraction time. In a previous study using upper extremity plyometric
exercises, an 8-week training consisting of 3 days a week warm-up and cool-down periods was
deemed appropriate. Considering the above information, our aim with this study is; To
evaluate the effects of plyometric exercises on proprioception, time to peak torque and
performance in young female basketball players by training the dominant or non-dominant upper
extremity on these parameters.
Evaluations of our thesis work will be carried out in the Laboratories of Istanbul Medical
Faculty, Department of Sports Medicine. The research will be carried out only in the
Laboratories of the Istanbul Faculty of Medicine, Department of Sports Medicine and no other
Center will be used. The number of research centers is 1. Although it is planned to start the
research on 01.09.2022 in the event that an Ethics Committee is taken, it is planned to be
completed by 09.01.2023.
Working method ; Young female basketball players will be divided into 2 equal groups as
dominant arm exercise group and non-dominant arm exercise group after the tests done in the
clinic. Then they will do the given exercises as instructed. The same evaluations will be
repeated when they come back to the clinic at the end of 8 weeks.
Evaluations to be applied in the study:
- Obtaining demographic information: Age, height, weight, dominant leg, previous injuries,
how long he has been involved in this sport,
- Pre- and post-exercise proprioception and strength measurements using Cybex Humac NORM
- For functional performance evaluation; Closed Kinetic Chain Upper Extremity Stability
Test (CKCUEST) and Upper Quarter Y Balance Test (UQYBT) are planned to be applied in a
laboratory environment.
- Note the time to reach peak torque during the force test for later comparison
The work plan:
It is planned to start our thesis study in March after the approval of the ethics committee.
It is planned that the evaluations will be completed within 2 weeks, the exercise training to
be applied will last for 6 weeks, then the same evaluations will be made and the same will
continue for 2 weeks. It is foreseen that the first evaluation dates will be between
09.01.2022-01.06.2023, exercise training will be between 09.01.2022-11.01.2022, and the
second evaluation date will be between 11.01.2022-12.01.2023. Our study is planned to last
for 6 months.
Experimental stages: For exercise training to individuals; -Seven plyometric upper extremity
exercises (2 sets, 15 repetitions) will be planned for the athletes 3 times a week for 8
weeks.
Exercises :
- Arm swings (fexion, extension and across the body)
- D1 D2 pnf patterns (with elastic band)
- Punching (with 1kg dumbbells)
- IR and ER with elastic band
- Overhead throws
- Reverse catches
- Push-up (knees on the ground) Shoulder stretches will be performed for warm-up and
cool-down periods before and after the exercise program.
Proprioception measurement with Cybex Isokinetic Dynanometer will be done for the evaluation
of the athlete before and after the exercise program.
-UQYBT and CKCUEST tests will be used for evaluation before and after the program.
