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growth is what kind of restraint
organismic
growth refers to a change in
size/number
growth factors can indicate
normal/abnormal development
4 factors influencing growth
genetics, secular changes, SES, nutrition
definition of developmental motor sequence
series of changes in motor skills from least to most advanced
Determining the "correct" order of a developmental sequence is based on
an analysis of levels of mechanical efficiency
why are we obese?
portion size and inactivity
physical activity
Bodily movement that is produced by the contraction of skeletal muscle and that substantially increases energy expenditure
moderate physical activity
Activities that use large muscle groups and are at least equivalent to brisk walking.
ex of moderate physical activity exercises
¬walking, swimming, cycling, dancing, gardening and yard work, and various domestic and occupational activities.
vigorous physical activity
¬Rhythmic, repetitive physical activities that use large muscle groups at 70 percent or more of maximum heart rate for age.
Physical activity guidelines
¬Children/adolescents should be active 60+ min/day ¬1+ hour of MVPA ¬VPA at least 3 days/week ¬Strength (muscle & bone) 3 days/week
vigorous physical activity examples
–Active games: running & chasing, tag –Rope jumping –Martial arts –Running –Sports like soccer, field hockey, basketball, swimming –Cross country skiing
ex of muscle strengthening exercises
–Games like tug of war –Rope or tree climbing –Swinging on playground equipment
ex bone strengthening exercises
–Games like hopscotch –Hopping, skipping, jumping –Running –Sports like gymnastics, basketball, volleyball, tennis
4 components of physical fitness
–CV endurance –Muscular strength/endurance –Flexibility –Body composition
Mechanisms of increased strength
–Neural recruitment –Muscle hypertrophy
motor development
age related changes in motor behavior and the processes underlying those changes
2 primary categories that drive development
inherited differences and environment
motor learning
relatively permanent changes in behavior resulting from practice
development results from
interaction of biological self with environment
learning focuses on
only environmental factors
3 types of constraints
organismic, environment, task

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