KIN 100 1st Edition Lecture 25 Pediatric Kinesiology Why should kinesiologists study children Obesity and children more children in each age group are obese now compared to the late 80 s CHD risk factors in children blood lipid profile obesity physical inactivity genetics of children have 3 risk factors Fitness is poor Fitness testing CA only 27 of children meet min standard of physical activity Why has obesity increased input output physical activity sedentary lifestyle using less calories than in the past nutrition problems high calorie snack increase in passive past times TV video games Loss of physical Education save money by cutting PE programs studies are finding that children who have PE everyday perform better academically Decline in After school sports change from agrarian society children no longer have as many physically active chores Physical activity decreases throughout high school 72 9th graders get regular physical activity 55 12 th graders Factors favoring physical activity 1 social friends 2 parents participate 3 part of school curriculum 4 adult role models pro athletes 5 convenient facilities Layout of Adelaide Australia inner city surrounded by lots of green area convenient for physical activity These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute The science of youth fitness laboratory based fitness observational research assess motor behavior playgrounds youth sport programs Pediatric sports medicine environmental physiology issues Thermostasis maintaining body temp more difficult in children children have larger surface area per unit body mass than adults greater heat gain in hot climate less sweating in children poorer acclimatization than adults children are less economical require more energy for same movement oxygen cost is greater for younger children Why children are less economical excessive co contraction use more muscles than needed shorter stride length higher stride frequency lower storage of elastic energy Is weight training safe for children no eccentric contractions loads to high de emphasize competition train all major muscle groups use full range of motion adjusts proper load Sports medicine issues Epiphysis bone growth plate fractures threaten growth Pre competition physical exam to prevent sudden death during exercise may be of limited value identify 1 kidney heart murmurs etc are detectable but not all issues are low risk of sudden death during exercise and its is not identified Load carriage issues use of lateral rods to reduce risk of injury minimize force max load should be 10 15 of body weight heavier objects closer to body
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