Abstract
This study investigates the relationships between the occlusal force and grade level, physical condition, dental condition, motor ability, and intake frequency of different food groups in junior high school boys. Anthropometrics, dental checkups, occlusal force measurements, motor ability measurements, and intake frequency measurements of different food groups were conducted on 150 boys (62%) at a junior high school in Osaka Prefecture. All tests were two-tailed and significance was set at < 0.05. A simple linear regression analysis revealed the association between many of the survey parameters and occlusal force (p < 0.05). A multiple linear regression analysis demonstrated that the grade level, mushroom/seaweed intake frequency, and ball-throwing distance (CFI = 1.000, RMSEA = 0.000, AGFI = 0.973, and GFI = 0.995) or the latent variable “Ability to exert great power in a moment” affected the occlusal force (CFI = 0.977, RMSEA = 0.053, AGFI = 0.915, and GFI = 0.955).