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Chapter 18 Growth, Development, and Exercise in Children and Adolescents Key Concepts acute musculoskeletal injuries adolescence body building childhood chronic musculoskeletal injuries development epiphyseal growth plate growth infancy making weight maturation mean power

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chapter 18

Chapter 18

Growth, Development, and Exercise in Children and Adolescents

slide3
acute musculoskeletal injuries

adolescence

body building

childhood

chronic musculoskeletal injuries

development

epiphyseal growth plate

growth

infancy

  • making weight
  • maturation
  • mean power
  • peak height velocity
  • peak power
  • peak weight velocity
  • puberty
  • Tanner scale
  • weight lifting
  • weight training
why is it important to be able to recognize the onset of puberty
Why is it important to be able to recognize the onset of puberty?

Normal growth patterns and responses to

exercise training are substantially different in

children than in adolescents

how do you use height and body weight data to identify the adolescent growth spurt
How do you use height and body weight data to identify the adolescent growth spurt?
  • Examine the yearly change in height or body weight as a function of age
  • Dramatic increases in height and body weight coincide with the onset of puberty
  • Increases change from around 5 cm per year to 10 cm per year for height and 3 kg per year to 10 kg per year for weight
slide7
According to Bouchard and Malina, what effect does exercise have on normal growth and development patterns of children?

None. It does not appear to either accelerate or

decelerate growth and maturation.

what effect does exercise have on body composition in children and adolescents
What effect does exercise have on body composition in children and adolescents?

Results in lower levels of percent body fat and

fat weight and produces more fat-free weight

slide9
Describe the normal developmental patterns of absolute VO2max during childhood and adolescence for males and females.
  • Males:
    • childhood:
    • adolescence:
  • Females:
    • childhood:
    • adolescence:

increase throughout

continue to increase

increase throughout

level off at about age 14

what accounts for the increase of vo 2 max during childhood
What accounts for the increase of VO2max during childhood?

It is a function of growth in the lungs,

circulatory system, and musculature.

why is making weight a bad idea for adolescent athletes
Why is making weight a bad idea for adolescent athletes?

Attempts to make weight often involve drastic

changes in caloric intake and water metabolism,

which can cause changes in kidney and

cardiovascular function.

what are some hazards associated with long distance running for children
What are some hazards associated with long-distance running for children?
  • Heel cord injuries
  • Epiphyseal growth plate injuries
  • Chronic joint trauma
  • Thermal intolerance
  • Psychological problems from unrealistic goals
what are the metabolic adaptations associated with anaerobic training in children and adolescents
What are the metabolic adaptations associated with anaerobic training in children and adolescents?
  • Increased:
    • phosphofructokinase
    • myosin ATPase
    • creatine phosphokinase
    • myokinase
    • stores and rate of utilization of ATP, CP, and glycogen
what factors should you consider when planning an anaerobic training program for children
What factors should you consider when planning an anaerobic training program for children?
  • Training program should closely mimic the intended sporting activity with respect to the mode of exercise as well as the metabolic demands.
  • Training protocol should include repetitions that tax the appropriate anaerobic system, whether phosphagens or gylcolysis.
what are some benefits associated with strength training for prepubescent children
What are some benefits associated with strength training for prepubescent children?
  • Improved flexibility
  • Favorable changes in blood lipid profiles
  • Enhanced bone and connective tissue development
  • Favorable changes in body composition
  • Reduced musculoskeletal injuries during sports participation
  • Improved motor skills
  • Increased muscular endurance
  • Positive psychological effects
slide16
What are the likely explanations for strength increases in response to resistance training in prepubescent children?
  • Primarily neural adaptations
  • Possibly hypertrophy
what are some hazards associated with strength training for children and adolescents
What are some hazards associated with strength training for children and adolescents?
  • Acute musculoskeletal injuries such as ruptured disks and damage to the epiphyseal growth plate
  • Chronic musculoskeletal injuries such as stress fractures and strains
slide18
Summarize the American Academy of Pediatrics’ recommendations for resistance training for children and adolescents.
  • The program should be conducted by well-trained adults who are qualified to plan programs appropriate to the age of the participant.
  • Weight lifting, power lifting, body building, and the use of maximal amounts of weight in strength training should be avoided until the participant has reached Tanner Stage 5 maturity.
slide20
Physical Fitness and Activity in Schools

www.aap.org/policy/re9907.html

American Academy of Pediatrics

www.aap.org

ACSM Current Comment—Preseason Conditioning for Young Athletes

www.acsm.org/pdf/Preseas.pdf

Strength Training for Children

www.protraineronline.com/past/jun1_01/children.cfm