The purpose of this research was to 1. To know the effect of practicing the nine squares table on physical fitness of students of Rajamangala University of Technology Phra Nakhon 2. To compare the physical fitness of Rajamangala University of Technology Phra Nakhon students before and after the training by using a nine square table. The population used in this research was students studying physical education. individual sports or team sports in the academic year 2019 who were healthy not sick were able to receive physical fitness tests and practice nine squares of 30 people divided into a control group of 10 people an experimental group that used a nine square grid size 60X60 centimeters amounting to 10 The experimental group used nine squares size 90X90 cm 10 people. The duration of the experiment was 8 weeks 3 days a week one hour each time. Physical fitness tests were performed before the experiment at week 4 and week 8 and the results were analyzed by statistical method mean standard deviation one-way analysis of variance. Repeated one-way covariance analysis The results showed that 1. After 8 weeks of experimentation it was found that the nine squares training of the 60x60 cm grid training group and the 90x90 cm grid training group improved the average 3-minute steps up and down than the control group. significantly at the .05 level. 2. The results of the nine grid training of the 60x60 cm grid training group found that after 8 weeks of experimentation the mean stepping up and down of 3 minutes within the 60x60 cm grid training group was better than before and after 4 weeks of the experiment. There was a significant difference at the .05 level. 3. The results of the nine grid training of the 90X90 cm grid training group found that after 8 weeks of experimentation the mean stepping up and down of 3 minutes within the 90X90 cm grid training group was better than before and after 4 weeks of the experiment. There was a significant difference at the .05 level.

: The purpose of this research was to 1) study the profile of physical fitness of the undergraduate students of the Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon. 2) study the factors contributing to physical fitness of the undergraduate students of the Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon. 3) study the guidelines in building physical fitness of the undergraduate students of the Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon. The research focused on the quantitative aspects of sport fitness by using equipment to test physical fitness and the questionnaire to measure the factors contributing to physical fitness and the guideline supporting the physical fitness. The questionnaire approved by the experts was used to collect data from 215 students who had been tested for physical fitness. To answer the research questions the data were statistically analyzed and processed using computer program for frequency percentage mean and standard deviation. The results of the study were as follows: 1) a good level of physical fitness of the undergraduate students was sitting and bending forward. An average level of physical fitness included standing & sitting in 60 seconds per one time long jump and 50 meter run. A low level of physical fitness was a 30-second push-up. 2) the factors contributing to physical fitness of the students included 2.1) interest 2.2) physical readiness 2.3) equipment 2.4) need for exercise and 2.5) sport outfits and 3) the guidelines for supporting physical fitness of the students included 3.1) fast walking 3.2) cycling 3.3) swimming and 3.4) running.