In the absence of disease aging results in structural changes to the heart that lowers the threshold for all the following conditions except?

Somatopause is associated with changes in which hormone? 

All the following affect the endocrine system along with aging except?

Which of the following hormones or precursors increase in men during the aging process?

Estrogen activates pathways that phosphorylate the myosin regulatory light chain effectively moving the myosin head closer to the actin molecule. This is one of the mechanisms that cause women to lose strength when they go through menopause. 

Which of the following is a contractile protein?

Human aging is a condition satisfying which of the following principles?

Exercise training decreases the thickness of the intima wall of the vessel in other words physically active older individuals have thinner vessel walls.

All of the following increase at maximal exercise with aerobic training in young and old individuals except?

Stimulating a muscle fiber to contract before the force generated from a previous stimulation has returned to baseline will result in a greater increase of muscle force.  The term to describe this is called?