THE PHYSICAL INACTIVITY EPIDEMIC: JUST THE FACTS Inactivity, Obesity, and Diabetes

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THE PHYSICAL INACTIVITY EPIDEMICJUST THE
FACTSInactivity, Obesity, and Diabetes

• Dr. Mark Tremblay, Ph.D., FACSM
• College of Kinesiology,
• University of Saskatchewan

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Recent Research

• 2/3 of Canadian children are not sufficiently
  active for optimal growth and development (CFLRI,
  1998)
• Canadian children are becoming progressively
  fatter, weaker, and less flexible (CFLRI, 1998)
• average Canadian child is sedentary for 3-5
  hrs/day in front of TV alone (CMAJ, 1998)
• in the past 15 years, the prevalence of obesity
  has tripled in Canadian children aged 7-13
  (Tremblay and Willms, 2000)

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Trends in the Health of Canadian Youth. Ottawa
Ministry of Public Works and Government Services.
Health Canada, 2000.

• Proportion of students in grades 6, 8, and 10 who
  exercise gt1x/wk outside of school is declining
  (1990-1998)
• Proportion of students in grades 6, 8, and 10 who
  watch TV gt4 hrs/day is increasing
• Proportion of students in grades 6, 8, and 10 who
  play video games gt4 hrs/wk is increasing (mostly
  males)
• Time spent playing video games by Canadian
  children among highest in the world (HBSC)

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obesity is an unintentional consequence of
societal progressit results from a mismatch
between our physiology and environment
Dr. James Hill, ACSM 2000
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LOTS OF NUMBERS
METHOD Prevalence 1996 Change 1981-1996 Percent Increase
Percentile Girls Boys 14.6 16.6 9.6 11.6 192 232
Cole et al. 2000 Girls Boys 8.9 10.2 7.2 8.2 424 510
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PROVINCIAL VARIATION IN BMI
BMI UNITS
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NIDDM

• Secular increases in prevalence of NIDDM in
  adolescents (Pinhas-Hamiel et al. J. Pediatrics,
  1996 Scott et al. Pediatrics, 1997)

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Diabetes and Gestational Diabetes Trends Among
Adults in the U.S., BRFSS 1990
Source Mokdad et al., Diabetes Care
2000231278-83
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Diabetes and Gestational Diabetes Trends Among
Adults in the U.S., BRFSS 1991-92
Source Mokdad et al., Diabetes Care
2000231278-83
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Diabetes and Gestational Diabetes Trends Among
Adults in the U.S., BRFSS 1993-94
Source Mokdad et al., Diabetes Care
2000231278-83
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Diabetes and Gestational Diabetes Trends Among
Adults in the U.S., BRFSS 1995
Source Mokdad et al., Diabetes Care
2000231278-83
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Diabetes and Gestational Diabetes Trends Among
Adults in the U.S., BRFSS 1997-98
Source Mokdad et al., Diabetes Care
2000231278-83
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Diabetes and Gestational Diabetes Trends Among
Adults in the U.S., BRFSS 1999
Source Mokdad et al., Diabetes Care 2001242
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NIDDM

• Second generation consequences offspring of
  parents with NIDDM show multiple abnormalities in
  glucose homeostasis early in life as well as high
  risk measures of body fatness

Srinivasan et al. Metabolism 47998-1004, 1998.
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At our student-parent advisory committee last
night, despite the money that we raise for one,
we can no longer have a phys ed specialist,
because other schools cant afford one as well.
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What ever happened to pick-up games and parents
playing baseball with their kids?
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Does anyone have any power to change this?