Chapter. 7 Flashcards
(46 cards)
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
Static isometric
Muscular force exerted no change in length
Dynamic
Change in muscle length
Strength spurt
Men- 1 yr after Max height
Women- during yr of Mac height
Women 62% of men’s strength
.
Muscular endurance
Fxn of age and activity levels
Prepubescent resistance training
Showed gains: 13-30%