Physical fitness measures among children and adolescents: are they all necessary?
Results from the principal component analysis evidenced that all physical abilities/motor skills, except flexibility, are strongly associated with each other, suggesting that one test can reflect the overall fitness among youth. Although it is unclear from these analyses which test would be the single choice indicator, previous work on the health impact of cardiorespiratory fitness would suggest that.
Maternal adrenal secretion maintains the normal increase in maternal plasma volume and fetal cortisol and indirectly supports fetal arterial oxygen tension, blood pressure, and adrenal secretion.