About this trial
Considering that therabant (elastic band) training combined with blood flow restriction exercises can be an effective training program for achieving muscle hypertrophy in practical applications, the aim of this study was to examine the effect of elastic band exercises integrated with blood flow restriction applied to the upper extremities on grip strength, upper extremity muscle strength, and selected performance parameters in elite tennis players. Tennis is a sport that requires high levels of upper extremity strength, grip strength, coordination, speed, and agility. Therefore, improving performance and ensuring safe strength gains for athletes is important. In recent years, blood flow restriction has attracted attention because it provides muscle strength and hypertrophy gains similar to high-intensity resistance exercises, even with low loads. Elastic band exercises are widely used because they are economical, portable, and applicable to different age groups. This prospective randomized controlled trial will include 30 elite tennis players aged 13-18 who have been licensed to play tennis at Antalya Tennis Specialization and Sports Club for at least 3 months and regularly attend training sessions. Participants will be randomly assigned to study and control groups. The study group will perform upper extremity exercises with elastic bands twice a week for 8 weeks under occlusion, using 7 cm wide pneumatic cuffs applied to the proximal arm at 30% of arterial occlusion pressure. The control group will perform the same elastic band exercises twice a week for 8 weeks without occlusion. Grip strength, upper extremity muscle strength, speed, agility, and sport-specific performance parameters will be evaluated before and after the intervention. The aim of the study is to determine whether elastic band exercises supported by blood flow restriction contribute to strength and performance development in tennis players. This research is expected to provide a scientific contribution to the planning of upper extremity strength training in tennis players and the use of blood flow restriction methods in the field of athletic performance. The findings are expected to contribute to scientific and clinical applications in the fields of sports physiotherapy, performance enhancement, and athlete rehabilitation.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
None
Disqualifiers
None
Trial design
Parallel
Treatments tested in this trial
Blood flow restricts exercise
Other interventionArterial blood flow pressure will be determined using a pulse oximeter, and exercise will be performed at 30% pressure. Arterial Occlusion Pressure Determination: Limb occlusion pressure will be determined using a pulse oximeter to identify the minimum pressure at which the brachial artery pulse is occluded. Arterial Occlusion Pressure Determination will be determined using the pulse oximeter method. Cuff pressure will be gradually increased, and pulse, SpO₂, and waveform will be monitored on the pulse oximeter. The pressure at which the pulse and waveform completely disappear will be considered the pressure at which arterial flow is interrupted and will be recorded as Arterial Occlusion Pressure Determination. Pressure for Applying Blood Flow Restrictive Exercises: Pressure will be applied at 30% of the determined Arterial Occlusion Pressure for the upper extremity. Occlusion cuffs will be inflated during each exercise and deflated immediately after the set to allow reperfusion.
Elastic band exercises without occlusion
Other interventionElastic band exercises (day one: Biceps Curls, External Rotation, Resistance Band Row, Pronation - Supination, Lateral Shoulder Stretch, Lawn Mower Row; day two: Push Ups, Internal Rotation, Lat Pull Down, Side Lateral Raises, Triceps Overhead Extensions, Band High Pull) twice a week for 8 weeks without occlusion.
Treatment groups
Trial outcomes
Primary outcomes
Change of Grip Strength
A Jamar (NY 10533) brand dynamometer, a hydraulic measuring instrument, will be used to measure grip strength. Athletes will be asked to firmly grasp and release the dynamometer once while seated with their arm in adduction, elbow at 90° flexion, forearm in mid-rotation, and hand in a neutral position. Measurements will be repeated three times for each extremity separately (5 seconds contraction, 30 seconds rest), and the average of these three values will be recorded in kilograms.
Change of Upper Extremity Muscle Strength
A Bench Press 1RM test will be administered to evaluate the maximal upper extremity strength of participants. Before the test, participants will be informed about the exercise technique and will perform appropriate warm-up. Participants will lie supine on the bench, with their feet fixed on the ground, and will grip the bar slightly wider than shoulder width. After lowering the bar to chest level in a controlled manner, they will be asked to push it back up for one repetition. The highest weight the participant can lift with correct technique will be recorded in kilograms as the 1RM value. Sufficient rest time will be given between trials, and an observer/assistant researcher will be present during the test for safety purposes.
Change of Upper Body Strength
The 30-second arm curl test will be used to assess upper extremity muscle strength. Participants will use a 3 kg dumbbell during the test. Participants will be instructed to sit in a straight-backed chair with their feet flat on the floor. The weight will be placed in the dominant hand with a neutral wrist position and an extended elbow. After a brief demonstration and practice, the participant will perform as many arm curls as possible within 30 seconds. The total number of completed movements will be considered for analysis.
Change of The International Tennis Number
The International Tennis Number-ITN Test will be used to determine the participants' skill levels. The ITN Field Assessment is a tennis skill assessment method developed by the International Tennis Federation.
Secondary outcomes
Height in Meters
The height of all subjects in meters (m) will be noted before the exercise program.
Weight in Kilograms
The weight of all subjects in kilograms (kg) will be noted before the exercise program.
Body Mass Index (BMI) in kg/m^2
Body Mass Index (BMI) will be calculated with the formula weight (kg)/height (m)\^2.
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