Effects of Unilateral, Bilateral and Combined Resistance Training on the Speed and Accuracy of the Serve in Youth Tennis Players

NCT06419452 | Enrolling By Invitation

• 1 other identifier: MXudong
• Study Type: interventional
• Target: 56
• Locations: 1 country
• Sites: 1

Brief Summary

This study is to explore the effects of unilateral, bilateral and combined resistance training on the serve speed and accuracy of amateur youth tennis players in China. The subjects were young male tennis players aged 16-20 years from four universities in Gansu Province. The experiment was divided into control group (CG), experiment group 1 (EG1-unilateral group), experiment group 2 (EG2-bilateral group) and experiment group 3 (EG3-combined group). Used to compare the effects of different forms of resistance training on serve speed and accuracy. Previous studies have shown that unilateral and bilateral resistance training can effectively improve strength, power, and speed in athletes (Speirs, et al., 2016; Davo, Jimenez, \& Solana,. , 2018), there is still controversy when comparing the advantages and disadvantages of two forms of resistance training (Ramirez-Campillo et al., 2015; Donab and Wall. The results of this study will be expected to be updated in 2022. Unilateral resistance training, bilateral resistance training, and combined unilateral and bilateral resistance training were used as intervention models in this study. Based on the literature review, the training frequency of this experiment was arranged as 2 times/week, and the total training time was 6 weeks, with a fixed duration of each training session. Each training session lasted a maximum of 60 minutes. In this experiment, the interval between the two weekly training sessions was at least 24 h to prevent subjects from being in a fatigued state in the relevant muscle groups of the body and affecting the experimental level.

Conditions

Exercise Training

Keywords

Resistance training

Outcome Measures

Primary Outcomes (6)

• Strength

  Muscle strength is the force produced by a muscle or muscle fibre against resistance

  6 weeks

• Power

  Power is the capacity to produce maximum force in a brief time frame

  6 weeks

• Flexibility

  Flexibility refers to muscle flexibility and joint mobility, such as the ability of a joint or muscle to move within an unrestricted, non-painful range of motion and to contract

  6 weeks

• Coordination

  Coordination is the ability of the body to control muscle groups at the right time, in the right direction and at the right speed, and to mobilise muscles effectively to achieve precise movements

  6 weeks

• Serve speed

  Speed is a form of physical quality, which refers to the ability of the human body to move under the specified conditions

  6 weeks

• Serve accuracy

  The degree of agreement between the test result and the accepted reference value, understood in the context of tennis as the amount of times the ball moves into the effective target range

  6 weeks

Study Arms (3)

Unilateral resistance training

OTHER

Unilateral resistance training uses ipsilateral limb restricted contractions, in which each limb works independently, moving or opposing a given loading task

Other: Unilateral resistance training programme

Bilateral resistance training

OTHER

Bilateral resistance training is the contraction of the same muscle in both limbs, that is, both limbs work together in a coordinated manner to cope with a given loading task

Other: Bilateral resistance training programme

combined resistance training

OTHER

Combined unilateral and bilateral forms of resistance training

Other: Combined（UL+BL） resistance training programme

Interventions

Unilateral resistance training programme OTHER

A method of training that increases muscle strength and endurance by using external resistance to a unilateral limb or movement.

Unilateral resistance training

Bilateral resistance training programme OTHER

A training method that increases muscle strength and endurance by using external resistance on both limbs or movements,

Bilateral resistance training

Combined（UL+BL） resistance training programme OTHER

A method of training that uses limbs or movements to increase muscle strength and endurance by external resistance using unilateral and bilateral combined forms,

combined resistance training

Eligibility Criteria

• Age: 16 Years - 20 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Between 16 and 20 years of age.
• National second-level athletes or above, or have participated in provincial or municipal competitions, or students majoring in tennis.
• At least 2 years of tennis training experience.

You may not qualify if:

• Have performed systematic resistance training within the past three months.
• Medical problems that may affect the study results, including athletes with recent history of surgery or injury.
• Athletes at high risk for sports injuries.

Sponsors & Collaborators

• Universiti Putra Malaysia: lead

Study Sites (1)

Northwest Normal University

Lanzhou, Gansu, 730301, China

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: May 9, 2024
• First Posted: May 17, 2024
• Study Start: May 10, 2024
• Primary Completion: June 30, 2024
• Study Completion: December 30, 2024
• Last Updated: December 4, 2024

Record last verified: 2024-12

Locations

CN (1)