Motion and EMG Analysis of the Forehand Topspin, Forehand Stroke, and Forehand Attack in Elite Table Tennis Players

National Yang Ming Chiao Tung University40 enrolled

Overview

This research will analyze and compare the muscle activation levels, muscle recruitment timing, trunk kinematics, and shoulder joint kinematics between the four forehand strokes and between elite table tennis players with and without shoulder injuries, providing insights for daily training and rehabilitation programs to reduce the occurrence of sports injuries.

The study participants will be elite table tennis players aged between 13 and 40. Participants must have competed in the Chinese Taipei Table Tennis Ranking Tournament or the National Table Tennis Championships within the past three years and have at least four years of table tennis experience, and train for more than 10 hours per week. The study involves four types of forehand strokes: forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Elite Table Tennis Players

Interventions

motion capture system, surface electromyographyDEVICE

forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack

Eligibility

Sex: ALLMin age: 13 YearsMax age: 40 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * The ages range from 13 to 40 years old * Competed in the Chinese Taipei Table Tennis Ranking Tournament or the National Table Tennis Championships within the past three years * At least four years of table tennis experience, and train for more than 10 hours per week Exclusion Criteria: * History of upper limb surgery or fracture * History of shoulder dislocation * History of spine injury in the last year * Systemic autoimmune disease or cancer * Pregnancy * Any neurological complications

Locations (1)

National Yang Ming Chiao Tung University

Taipei, Taiwan, Taiwan

RECRUITING

Outcomes

Primary Outcomes

Trunk muscles activation during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack

The root mean square of electromyography (EMG) data of bilateral erector spinae and bilateral abdominal external oblique will be normalized by the maximum voluntary contraction amplitude (percentage of maximal voluntary contraction, %)