Please enable JavaScript.
Coggle requires JavaScript to display documents.
Effect of aging on cardiorespiratory function - Monem Jemni - Coggle…
Effect of aging on cardiorespiratory function - Monem Jemni
Cardiovascular function and aging
Aerobic capacity decreases 1% after age 25
with the aerobic training programs can significantly increase VO2max in elderly
HRmax decreases 1 beat per year
Maximum stroke volume decreases w/ aging
Maximum cardiac output decreases w/ aging
Muscle blood flow decreases w/ aging
Respiratory changes with aging
Total lung capacity (TLC) remains
Elasticity in lung tissue and chest walls decreases
Endurance training in middle and older age reduces the loss of elasticity in lungs.
Residiual volume (RV) increases w/ aging
Vital capacity (VC) and forced expiratory volume (FEV) decrease lineary with aging
Effect of exercise on the cardiorespiratory system
Training intensity and volume affect positively the rate of decrease in SV and VO2max btw age 30 and 50.
Normally active men has lower VO2max than highly trained runner men
Aging alone may not decrease VO2max, decrease daily activity levels also affect.
VO2max levels w/ age: high intensity> reduced intensity> stopped training > fitness trained > untrained
Reducing cardiovascular disease through physical activity
Higher intensity exercise reduces the risk of CHD greater.
Endothelial function & vascular inflammation DECREASE
Contractility via LV hypertrophy & diameter and capacity of vessels INCREASE
Exercise reduce blood pressure, LDL, triglyceride and total cholesterol
Better lipid profile
Weight control, diabete mangement and stress reduction
Trainability in older athletes and in the elderly
Swimming performance at age 20 vs 50 for master swimmers : age 50 > age 20
Resistance exercise: increases in muscle strenght and muscle hypertrophy
Endurance exercise: improvement in muscle oxidative enzyme actvities than in younger endurance trained people