Chapter 6 and 7 Flashcards
Obesity is BMI of
30 - 40
Severe obesity BMI
40 +
Adolescent awkwardness is
period during growth spurt when height is increasing at its maximum rate
What does adolescent awkwardness distrupt
balance
Flexibility
What does no increase at the same rate as muscular strength
Body weight
What are the 3 important measurements for proportional growth
Head circumference
Sitting height
Biacromial
When do Boys have shorter legs than girls
Childhood
A lack in balance causes what to decrease
Childs motor performance
Isaac said that center of gravity ….
Hinders children in biking etc and coming to a complete stop
Who came up with the different morphs
Sheldon
Who came up with somatotyping
Heath and Carter
How do we measure skeletal density
Dual energy X ray absorptiometry
What is Oesteoblastic
2 months in utero
BONE BUILDING
What is Oesteoclastic
Reabsorbing old bone
What is Endochondral bone formation
Bones lengthen at cartilage or second centers
What is Appositional bone formation
Allows long bones to increase in diameter
What is bone remodelling
Oesteoblastic + oesteoclastic
What is a rapid change in body size due to
Adolecsent awkwardness
Childs have high center of gravity in their
Top half
Physical activity does no affect….
BONE LENGTH
Physical activity affects
Bone density
Bone width
What is a better indicator of maturity than chronological age
Developmental age
What is the fetal heart rate like
Rapid
Frequent
Submaximal heart rate declines with
Age
Maximal heart rate does not decline until…
After maturity
What are the two ways of increasing muscular strength
Hypertrophy
Neural adaptations
Children have low levels of….
Androgens (sex hormones)
BMI =
Weight / height (2)
Overweight is a BMI of
25-30
Static force is
no change in length of muscle
Dynamic force is
muscle changes length
