Tracking Changes of Chinese Pre-Service Teachers’ Aerobic Fitness, Body Mass Index, and Grade Point Average Over 4-years of College
Abstract
:1. Introduction
2. Materials and Methods
2.1. Research Design and Measures
2.2. Participants
2.3. Data Analyses
3. Results
3.1. Relationships of AF, BMI, and GPA in Four Years
3.2. Changes of AF, BMI, and GPA in Four Years
3.3. GPA, AF, and BMI Trajectories
3.4. GPA, AF, and BMI by Gender and Major
3.4.1. GPA, AF, and BMI by Gender
3.4.2. GPA, AF, and BMI by Major
3.5. Effect Sizes
4. Discussion
4.1. Changes of AF, BMI, and GPA in Four Years of College
4.2. Changes of AF, BMI, and GPA by Gender and Major
4.3. Limitations
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Variables | Freshmen | Sophomore | Junior | Senior | |
---|---|---|---|---|---|
GPA | Female | 81.23 (3.63) | 82.81 (4.11) | 85.58 (4.18) | 86.80 (4.57) |
M (SD) | Male | 79.28 (4.66) | 80.12 (5.27) | 83.12 (4.75) | 85.83 (4.77) |
Social science major | 81.29 (3.63) | 82.76 (4.13) | 85.63 (4.14) | 85.86 (4.25) | |
Natural science major | 80.39 (4.25) | 81.67 (4.85) | 84.36 (4.64) | 87.97 (4.92) | |
Total | 80.96 (3.89) | 82.36 (4.44) | 85.17 (4.37) | 86.63 (4.62) | |
AF (VO2max) | Female | 2499.83 (417.06) | 2471.91 (540.06) | 2474.58 (531.92) | 2341.24 (412.86) |
M (SD) | Male | 3551.57 (664.56) | 3531.66 (660.99) | 3548.39 (635.21) | 3328.81 (538.92) |
Social science major | 2647.50 (587.88) | 2640.01 (656.79) | 2656.99 (647.15) | 2479.11 (555.64) | |
Natural science major | 2722.94 (644.04) | 2722.94 (644.04) | 2647.60 (735.06) | 2552.10 (593.75) | |
Total | 2675.12 (609.97) | 2648.53 (686.82) | 2653.55 (680.49) | 2505.84 (570.83) | |
% (N) | Fail | 13.3 (263) | 18.8 (373) | 21.9 (433) | 25.2 (499) |
Pass | 74.4 (1473) | 67.5 (1337) | 65.6 (1298) | 70.7 (1400) | |
Outstanding | 12.3 (244) | 13.6 (270) | 12.6 (249) | 4.1 (81) | |
BMI | Female | 21.94 (2.69) | 21.16 (2.57) | 20.83 (2.55) | 19.94 (2.67) |
M (SD) | Male | 21.81 (2.69) | 21.13 (2.52) | 21.12 (2.58) | 20.93 (2.89) |
Social science major | 21.74 (2.71) | 21.01 (2.57) | 20.77 (2.54) | 20.13 (2.69) | |
Natural science major | 22.22 (2.63) | 21.40 (2.52) | 21.07 (2.57) | 20.05 (2.80) | |
Total | 21.92 (2.69) | 21.15 (2.56) | 20.88 (2.55) | 20.10 (2.73) | |
% (N) | Underweight | 7.3 (144) | 13.7 (271) | 16.8 (333) | 27.7 (549) |
Acceptable | 61.7 (1222) | 64.1 (1269) | 63.3 (1253) | 58.0 (1149) | |
Overweight | 31 (614) | 22.2 (440) | 19.9 (394) | 14.2 (282) |
Variables | Model 1 | Model 2 | Model 3 |
---|---|---|---|
GPA | Body Mass Index (BMI) | Aerobic Fitness | |
year | 1.982 * | −0.573 ** | −50.284 ** |
(standard error) | (0.0379) | (0.0253) | (4.369788) |
Constant | 80.96 ** | 22.44 ** | 2746.47 ** |
(standard error) | (0.0947) | (0.0633) | (10.9245) |
Observations | 7920 | 7920 | 7920 |
Individual fixed effect | yes | yes | yes |
Dependent Variable | Model 4 | Model 5 | Model 6 |
---|---|---|---|
GPA | GPA | GPA | |
All students | Female | Male | |
year | 2.548 *** | 2.424 *** | 2.799 *** |
(standard error) | (0.0927) | (0.106) | (0.203) |
major | 2.130 *** | 1.880 *** | 2.865 *** |
(standard error) | (0.303) | (0.327) | (0.782) |
male | −2.030 *** | ||
(standard error) | (0.290) | ||
overweight & obese | −0.437 | −0.762 ** | 1.211 |
(standard error) | (0.320) | (0.338) | (0.817) |
1. aerobic fitness (entire sample) | reference group | reference group | reference group |
2. aerobic fitness (fail) | −0.00608 | −0.319 | 0.481 |
(standard error) | (0.312) | (0.341) | (0.736) |
3. aerobic fitness (Pass) | 0.677 | 0.386 | 0.160 |
(standard error) | (0.523) | (0.560) | (1.164) |
4. aerobic fitness (Outstanding) | −2.349 *** | −2.764 *** | 2.237 |
(standard error) | (0.754) | (0.747) | (3.907) |
1. aerobic fitness (entire) * year | reference group | reference group | reference group |
2. aerobic fitness (fail) * year | −0.0650 | 0.0345 | −0.191 |
(standard error) | (0.0913) | (0.103) | (0.212) |
3. aerobic fitness (pass) * year | −0.194 | −0.0594 | -0.472 |
(standard error) | (0.163) | (0.177) | (0.436) |
4. aerobic fitness (outstanding) * year | 0.790 *** | 0.914 *** | |
(standard error) | (0.260) | (0.258) | |
overweight & obese * year | 0.221 ** | 0.297 *** | −0.143 |
(standard error) | (0.104) | (0.114) | (0.253) |
1. aerobic fitness * male | reference group | ||
2. aerobic fitness * male | 0.0190 | ||
(standard error) | (0.279) | ||
3. aerobic fitness * male | −1.163 ** | ||
(standard error) | (0.486) | ||
4. aerobic fitness * male | 0.335 | ||
(standard error) | (3.474) | ||
overweight & obese * male | 0.214 | ||
(standard error) | (0.380) | ||
1. aerobic fitness * major | reference group | reference group | reference group |
2. aerobic fitness * major | 0.187 | 0.236 | 0.180 |
(standard error) | (0.228) | (0.250) | (0.567) |
3. aerobic fitness * major | 0.135 | 0.0347 | 0.633 |
(standard error) | (0.407) | (0.447) | (1.005) |
4. aerobic fitness * major | 1.113 ** | 1.214 ** | 0 |
(standard error) | (0.567) | (0.560) | (.) |
overweight & obese * major | 0.102 | 0.324 | −0.901 |
(standard error) | (0.288) | (0.307) | (0.778) |
major * year | −0.864 *** | -0.876 *** | −0.703 *** |
(standard error) | (0.0690) | (0.0749) | (0.179) |
Constant | 77.77 *** | 78.28 *** | 74.39 *** |
(standard error) | (0.322) | (0.352) | (0.742) |
Random-effects Parameters | |||
var (year) | 0.229 *** | 0.254 *** | 0.0871 * |
(standard error) | (0.0190) | (0.0199) | (0.0554) |
var (constant) | 7.376 *** | 6.536 *** | 11.22 *** |
(standard error) | (0.186) | (0.188) | (0.606) |
var (Residual) | 9.211 *** | 8.699 *** | 11.69 *** |
(standard error) | (0.0925) | (0.0956) | (0.288) |
Observation | 7920 | 6600 | 1320 |
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Keating, X.D.; Shangguan, R.; Xiao, K.; Gao, X.; Sheehan, C.; Wang, L.; Colburn, J.; Fan, Y.; Wu, F. Tracking Changes of Chinese Pre-Service Teachers’ Aerobic Fitness, Body Mass Index, and Grade Point Average Over 4-years of College. Int. J. Environ. Res. Public Health 2019, 16, 966. https://doi.org/10.3390/ijerph16060966
Keating XD, Shangguan R, Xiao K, Gao X, Sheehan C, Wang L, Colburn J, Fan Y, Wu F. Tracking Changes of Chinese Pre-Service Teachers’ Aerobic Fitness, Body Mass Index, and Grade Point Average Over 4-years of College. International Journal of Environmental Research and Public Health. 2019; 16(6):966. https://doi.org/10.3390/ijerph16060966
Chicago/Turabian StyleKeating, Xiaofen D., Rulan Shangguan, Kunpeng Xiao, Xue Gao, Connor Sheehan, Liang Wang, Jeff Colburn, Yao Fan, and Fei Wu. 2019. "Tracking Changes of Chinese Pre-Service Teachers’ Aerobic Fitness, Body Mass Index, and Grade Point Average Over 4-years of College" International Journal of Environmental Research and Public Health 16, no. 6: 966. https://doi.org/10.3390/ijerph16060966