Customised Mouthguards on Baseball and Softball Performance

This study recruited 45 baseball and softball players, including 30 fielders and 15 pitchers. Using a randomized crossover experimental design, the study was divided into randomised divided into customised mouthguards trial (MG) and control trial (CON) without temporal positioning. After the participants wore the mouthguard, they performed the vertical jump and grip strength tests sequentially. At the end of the test, depending on the pitcher or fielder, a baseball pitching ability test or a hitting ability test was conducted using a radar baseball tracking system. It is expected to analyze the vertical jump height, grip strength, pitchers' straight and changeup ball speeds, rotation speeds, degree of displacement, on-base and off-base locations. Hitting ability was expected to be documented with respect to initial velocity, elevation, and consistency of elevation.

Inclusion criteria

• has won the top 8 national level baseball of softball championships in the last three years.
• no cardiovascular and joint diseases.
• aged 20 or above who are adults
• continuing to train professionally more than 5 days a week for the past year

Exclusion criteria

• have not won the top 8 national baseball or softball championships in the past three years.
• have a cardiovascular or joint disease, or any injuries that may be impaired by exercise.
• participants who are underage or not in regular baseball or softball training
• have injury to the temporomandibular joint.