The correct order is Pes Planus (feet), Genu Varum (legs), Hollow Back (lower back), and Kyphosis (upper back).
Pes Planus, commonly known as flat feet, refers to the condition where the arches of the feet are lowered or absent, resulting in the entire sole of the foot touching the ground.
Genu Varum, also called bowlegs, is a condition where the legs curve outward at the knees, causing the feet to be wide apart when standing.
Hollow Back (also known as hyperlordosis) refers to an excessive inward curvature of the lower back, leading to a protruding abdomen and a pronounced curve in the spine.
Finally, Kyphosis is an exaggerated forward rounding of the upper back, often referred to as a "hunchback," causing a rounded, hunched appearance in the thoracic region of the spine.