Chapter 12. Application of Changing Criterion Design. Limitations of the Study One limitation of the study was gender bias. It was noted in the study that there are more overweight girls than boys, yet the authors included only boys in the study. Therefore, the findings may not be generalizable to the general population.
Anatomy. The buttocks are formed by the masses of the gluteal muscles or glutes (the gluteus maximus muscle and the gluteus medius muscle) superimposed by a layer of fat. The superior aspect of the buttock ends at the iliac crest, and the lower aspect is outlined by the horizontal gluteal crease. The gluteus maximus has two insertion points: 1â3 superior portion of the linea aspera of the femur, and the superior portion of the iliotibial tractus.
SHARE SHARE TWEET EMAIL. The butt consists of three gluteal muscles: the gluteus maximus, gluteus medius and gluteus minimus. The gluteus maximus, atop the gluteus medius, serves as the main buttock muscle and the largest muscle of the body. When you work the butt muscles, this is the main muscle you build for shape.The gluteus medius and minimus muscles help you keep your balance.HARE SHARE TWEET EMAIL. The butt consists of three gluteal muscles: the gluteus maximus, gluteus medius and gluteus minimus. The gluteus maximus, atop the gluteus medius, serves as the main buttock muscle and the largest muscle of the body. When you work the butt muscles, this is the main muscle you build for shape.