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The Physical Inactivity Epidemic: Are Canadian Children at Risk?

The Physical Inactivity Epidemic: Are Canadian Children at Risk?. Claire LeBlanc MD, FRCP, Dip Sport Med . Physical Inactivity Statistics *. 63% of 5-17 y.o. not active enough for optimal growth Adolescents less active than children 2-12 years old (33% vs 43%)

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The Physical Inactivity Epidemic: Are Canadian Children at Risk?

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  1. The Physical Inactivity Epidemic: Are Canadian Children at Risk? Claire LeBlanc MD, FRCP, Dip Sport Med

  2. Physical Inactivity Statistics * • 63% of 5-17 y.o. not active enough for optimal growth • Adolescents less active than children 2-12 years old (33% vs 43%) • Decline in activity with age and gender (girls at 14-15 yrs vs boys 16-17 yrs) • Girls less active than boys: 30% vs 50% at 5-12 yrs vs 25% vs 40% at 13-17 yrs • Girls - less intense physical activities * Physical Activity Monitor 1999. CFLRI

  3. Health Implications of Physical Inactivity • WHO definition of health: comprehensive state of physical, psychological, and social well being • Childhood obesity • Type 2 diabetes • Hypertension • Osteoporosis • Depression • Smoking/alcohol/drugs • Adolescent pregnancy

  4. High Blood Pressure • ~ 3 million USA youths affected • Associated with obesity • Tracking from adolescence into adulthood established: ~ 50% boys, ~ 40% girls remained HT 8 yrs later * * Anderson and Haraldsdottir J Int Med 1993;234:309-315

  5. Osteoporosis • 1 in 4 women > 50 y with osteoporosis • Annual cost hip fracture treatment $650 million * • Bone accretion in first 20 yrs major factor in final bone mass + bone health later yrs *Wiktorowicz et al. Osteoporos Int 2001;12(4):271-8

  6. Canadian Youth Mental Health - Depression • 113,000 Canadian 12-17 year olds depressed • Suicide 2nd leading cause of injury-related death in adolescence • 35% grade 10 students depressed 1 or more times/week in prior 6 months (1998) * *Trends in Health of Canadian Youth. Health Canada 1999

  7. Canadian Youth Mental Health - Smoking • Average age onset smoking  from 16 to 12 years over past 2 decades* • 1998grade 10 smokers – 28% boys, 34% girls** • Weekly smokers unlikely to quit thus become adult smokers*** *CPS position statement Ped & child health 2001;6(2):89-95 **Trends in Health of Canadian Youth. Health Canada, 1999 ***Kelder et al Am J Public Health 1994;84(7):1121-26

  8. Canadian Youth Mental Health – Drugs * • 1998 grade 10 students > 90% had tried alcohol • 43% grade 10’s “very drunk” > 2 x in 1998 • 1998 grade 10’s: 42% MJ, 13% LSD, 6% cocaine, 9% amphetamines * Trends in Health of Canadian Youth. Health Canada 1999

  9. Canadian Youth Mental Health - Delinquency • ~ 20% School drop out rate in 1991 •  Youth violence 106% vs  45% adults 1986-1991* • 75,000 youths/yr charged with crimes in Canadian courts * Smart et al J Psychoactive Drugs 1997;29(4):369-373

  10. Canadian Youth Pregnancy * • Teen pregnancy dropped between 1975-1987 but has increased since 1990 • 2.7% incidence pregnancy 15-17 y.o. in 1990 • 52% 15-17 year olds continue pregnancy to term * CPS position statement Canadian J Ped 1994;1(2):58-60 reaffirmed Jan 2000

  11. Is Physical Activity the Answer?

  12. P A reduces Hypertension and Osteoporosis • Aerobic exercise reduces systolic and diastolic BP in adolescents with hypertension* • High impact exercises during puberty improves bone mineral content** *Hansen et al. BMJ 1991;303:682-5 **Heinonen et al Osteoporos Int 2000;11:1010-17

  13. Physical Activity Improves Mental Health • Regular PA may increase self esteem • Regular PA may decrease anxiety/depression* • Some evidence shows teen girls have lower rates of sexual activity and pregnancy when  PA** • Some evidenced regular PA associated with  smoking, alcohol and drug abuse *K.J. Calfas, W.C. Taylor. Ped Exerc Sci 1994. 6:406-423 **Sabo et al. J Adolesc Health 1999;25:207-16

  14. Physical Activity Improves School Performance* • Positive associations with PA and academic performance • Some evidence good grades same or better with  regular PA despite reduction in academic class time • Regular PA may improve attitudes, discipline and behavior** *R.J. Shephard. Pediatric Exercise Science 1997. 9:113-126 **Keays and Allison. Can J Public Health 1995;86(1):62-65

  15. Why are Canadian Children Inactive? • TV, computer, Nintendo • Inactive parents • Inadequate access to quality physical education classes • Lack of recreational facilities

  16. The Battle Against Physical Inactivity Is Not a Solo Fight

  17. Recommendations • Parents, children, youth, schools, school boards, recreation leaders, medical and allied health personnel, all levels of government need to work together to promote regular PA • Limit sedentary behaviors (TV, video/computer games) • Parents to lead by example (Family oriented PA) • PA outside of gym class curriculum • School and community co-operative efforts • Policies to ensure safe equipment, facilities and routes to and from school • Policies to mandate daily K-12 quality school phys-ed classes by trained specialists

  18. Recommendations • Promote and help disseminate Canada’s Physical Activity Guide for Healthy Active Living for Children and Youth

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