Chapter. 7 Flashcards
Maximal SV achieved
During submaximal work (40-60% of aerobic power)
Health related fitness
Body comp, cardio, flexibility, muscular strength and endurance
HR
Fetal- high inconsistent Brith- decreases and have bradycardia 1 yr- 40 bpm Y men 57-60 Y women- 62-63 My avg- 75-79 60+ decreases
Younger children high hr to compensate for smaller stroke volume
.
Maximal does not decline after maturity
Submaximal declines with age
Maximal hr=220-age
Adult populations
Stroke volume
Ejected from heart , pumped each beat
Cardiac output
Amy of blood pumped in 1 min
Children <adults
At rest, co is 5 liters/min
To gain maximal cardiac output
Physical condition an age
CO declines
1 percent after year 25
VO2 max- max o2 consumption
Measure of physical working capacity , largest amt of o2 human can consume at tissue level
Declines in women ages 12-13 of VO2 max
Increase in body fat, lower blood hemoglobin, less muscle development
Decline of vo2 past 25 yrs
1 percent yearly
60-90 % of Max
3-5 times weekly
1 % decline in vo2 max yearly
Trained/untrained
Muscular strength
Contraction of skeletal muscles creates movement
Earthbound
No strength to launch body from supporting surfaces