Cardiovascular Response to Exercise

Question 1

Ker, 2009

Answer 1

Showed that in heart failure the bowditch phenomenon shows little efficacy because their failing hearts are unable to support an increase in inotropy

Question 2

Chen, 2010

Answer 2

Showed that post-exercise hypotension is corrected by baroceptor action which causes a secondary increase in blood pressure

Question 3

Myers, 2002

Answer 3

Heart failure patients show very low CPX test results because their inability to adapt their CV system in response to exercise gives them a very low exercise tolerance

Question 4

Olver, 2016

Answer 4

Trained individuals show much higher lower leg blood flow in comparison to sedents. This is because exercise causes an increase in shear blood flow which causes release of Nitric Oxide and Vascular Endothelial Growth Factor which stimulates capillary growth and branching

Question 5

Maughan, Glesson and Greenhaff, 1997

Answer 5

Showed that during exercise, different muscle groups are recruited. First are the type I aerobic fibres, then the mixed type IIa fibres, then the anaerobic type IIx fibres

Question 6

Wust, 2012

Answer 6

Showed that VO2 max can be increased by increasing muscle mitochondrial volume and capillary:fibre ratio