Physical strength, body composition, and G-test results of air force cadets based on nutrition knowledge differences

• Published in: Scientific reports Vol. 14; no. 1; p. 3083
• Main Authors: Sung, Jun-Young, Lee, Kyu-Lim
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 07.02.2024; Nature Publishing Group; Nature Portfolio
• Subjects: 692/1537; 692/700; Body composition; Exercise; Humanities and Social Sciences; multidisciplinary; Nutrition; Physical activity; Physical training; Regression analysis; Science; Science (multidisciplinary)
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-024-53600-4

The Gravitational Acceleration Test (G-test) is a demanding, and sophisticated high-intensity physical activity, greatly influenced by individual body composition and physical strength. This study analyzed the general nutrition knowledge questionnaire (GNKQ) responses of Air Force cadets to identify the relationship between nutrition knowledge, body composition, physical activity, physical strength, and gravity-induced loss of consciousness. Based on the G-test results, 105 fourth-year Air Force cadets were divided into two groups: GP (G-test pass group) and GF (G-test fail group). The analysis items were GNKQ responses, body composition, and physical strength analysis, based on which independent sample t-tests , and logistic regression analysis were conducted. Physical activity according to the G-test results was statistically higher in the GP compared to the GF (vigorous activity reps/week, p  = 0.017; mins/day, p  = 0.011). The GP Group showed a statistically high GNKQ score compared to the GF Group: Overall ( p  = 0.003), Section 1 ( p  < 0.001), and Section 2 ( p  = 0.002). Based on this study, it can be deduced that analyzing the effect G-test through continuous research over the next years and applying them to physical training will have a greater impact on the cadets’ increased physical strength and their success on the G-test.