aging

Question 1

how does aging impact cardiovascular fitness?

Answer 1

3-6% per decade after 30s
>20% per decade after 70s

decreased density and function of mitochondria
alterations of proteins in ETC
decreased mitochondrial mRNA
decreased capillary density

Question 2

potential mechanisms for alterations in VO2 with age

Answer 2

VO2 peaks around 30
decreased hormonal response, BDNF, satellite cells

Question 3

can cardiovascular fitness be improved at an advanced age?

Answer 3

yes

Question 4

how does age impact muscle mass

Answer 4

decline in muscle mass called sarcopenia

Question 5

given the role of satellite cells in muscle mass, how does it relate to resistance training and aging?

Answer 5

resistance training helps keep satellite cell count up

Question 6

define sarcopenic obesity

Answer 6

a loss of skeletal muscle mass and subsequent gain in fat mass

increased fat tissue specific to abdominal region