A research study was conducted to examine the impact of eating a high protein breakfast on adolescents' performance during a physical education physical fitness test. Half of the subjects received a high protein breakfast and half were given a low protein breakfast. All of the adolescents, both male and female, were given a fitness test with high scores representing better performance. Test scores are recorded below.
|Group||High Protein||Low Protein|
|Protein Level x |
There appears to be significant main effects for both protein level (F=8.89 (1,16), p<.01) and gender (F=20.00 (1,16), p<.01). There was not a significant interaction effect (F=2.22 (1,16), not significant).
Based on this data, it appears that a high protein diet results in a better fitness test score. Additionally, young men seem to have a significantly higher fitness test score than women.