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Relationship between BMI, physical fitness, and motor skills in youth with mild intellectual disabilities

International Journal of Obesity volume 30, pages 861–867 (2006)Cite this article

Abstract

Introduction:

The negative impact of obesity on physical fitness and motor abilities has been documented in youth of various ages; however, this issue has not been explored in youth with mild intellectual disabilities (ID). Youth with ID are considered more overweight, less physically fit, and less motor proficient than peers without ID, so it is important to determine if these variables are associated in this population. The purpose of this study was to examine the relationship between body mass index (BMI), physical fitness, and motor skills in a large sample of youth with mild ID.

Method:

A systematic, stratified sampling method was used to select 444 youth with mild ID, aged 6–18 years, from eight special education schools in Hong Kong. Physical fitness was assessed using items from the national Hong Kong assessment: 6- (ages 6–8 years) or 9- (ages 9–18 years) minute run, sit-up, isometric push-up, sit and reach, and sum of skinfold. Functional motor skills were assessed in 244 youth from the fitness sample using the Test of Gross Motor Development-II. Subjects were categorized into normal or overweight/obese BMI groups based on international cutoff points.

Results:

Approximately 20% of the sample was classified as overweight/obese (average BMI normal=17.47±2.69; overweight/obese=24.78±4.05). ANCOVA controlling for age and gender revealed group differences in the run (P=0.001) and push-ups (P=0.05), but not in the motor or other fitness variables. After controlling for age and gender, BMI was correlated with the run (r=−0.27, P < 0.001) and push ups (r=−0.18, P=0.008). Age and gender were entered as the first block in hierarchical regression and accounted for most of the variance in all dependent variables, except sit and reach. The inclusion of BMI in the second block added to the model for run and push-ups only (ΔR2 run=0.04, push-ups=0.03, P<0.001).

Conclusion:

Overweight/obesity is minimally associated with aerobic fitness and muscular strength in youth with mild ID. BMI did not impact other fitness measures (sit-up, sit and reach) or motor skills in the sample. The undesirable level of overweight/obesity in this sample requires increased attention and immediate intervention.

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References

  1. Hedley AA, Ogden CL, Johnson CL, Carroll MD, Curtin LR, Flegal KM . Prevalence of overweight and obesity among US children, adolescents, and adults, 1999–2002. JAMA 2004; 291: 2847–2850.

    CAS  PubMed  Google Scholar 

  2. Yamaki K . Body weight status among adults with intellectual disability in the community. Ment Retard 2005; 43: 1–10.

    Article  PubMed  Google Scholar 

  3. Hove O . Weight survey on adult persons with mental retardation living in the community. Res Dev Disabil 2004; 25: 9–17.

    Article  PubMed  Google Scholar 

  4. Murphy CM, Allison DB, Babbitt RL, Patterson HL . Adiposity in children: is mental retardation a critical variable? Int J Obes Relat Metab Disord 1992; 16: 633–638.

    CAS  PubMed  Google Scholar 

  5. Takeuchi E . Incidence of obesity among school children with mental retardation in Japan. Am J Ment Retard 1994; 99: 283–288.

    CAS  PubMed  Google Scholar 

  6. Eichstaedt CB, Lavay BW . Physical Activity for Individuals with Mental Retardation: Infancy Through Adulthood. Human Kinetics: Champaign, IL, 1992.

    Google Scholar 

  7. Fernhall B . Physical fitness and exercise training of individuals with mental retardation. Med Sci Sports Exerc 1993; 25: 442–450.

    Article  CAS  PubMed  Google Scholar 

  8. Graf C, Koch B, Kratschmann-Kandel E, Falkowski G, Christ H, Coburger S et al. Correlation between BMI, leisure habits and motor abilities in childhood (CHILT-project). Int J Obes Relat Metab Disord 2004; 28: 22–26.

    Article  CAS  PubMed  Google Scholar 

  9. Okely AD, Booth ML, Chey T . Relationships between body composition and fundamental movement skills among children and adolescents. Res Q Exerc Sport 2004; 75: 238–247.

    Article  PubMed  Google Scholar 

  10. Raudsepp L, Jürimäe T . Relationships of physical activity and somatic characteristics with physical fitness and motor skill in prepubertal girls. Am J Hum Biol 1997; 9: 513–521.

    Article  PubMed  Google Scholar 

  11. Fernhall B, Pitetti KH, Vukovich MD, Stubbs N, Hensen T, Winnick JP et al. Validation of cardiovascular fitness field tests in children with mental retardation. Am J Ment Retard 1998; 102: 602–612.

    Article  CAS  PubMed  Google Scholar 

  12. Pitetti KH, Yarmer DA, Fernhall B . Cardiovascular fitness and body composition of youth with and without mental retardation. Adapt Phys Act Quart 2001; 18: 127–141.

    Google Scholar 

  13. Sutherland G, Couch MA, Iacono T . Health issues for adults with developmental disability. Res Dev Disabil 2002; 23: 422–445.

    Article  PubMed  Google Scholar 

  14. Lan M . The implementation of the target oriented curriculum in special schools for pupils with mental handicap in Hong Kong Paper presented at the International Special Education Congress, Manchester, UK. Retrieved March 1, 2004 from http://www.isec2000org.uk/abstracts/papers_a/au_1.htm. 2000.

  15. Hong Kong Health and Welfare Bureau. Hong Kong rehabilitation programme plan (1998–99 to 2002–03). Towards a new rehabilitation era Retrieved March 1, 2004, from http://www.info.gov.hk/hwb/english/WHATSNEW/RPP/TOC.HTM 1999.

  16. Cole TJ, Bellizzi MC, Flegal KM, Dietz WH . Establishing a standard definition for child overweight and obesity worldwide: international survey. Br Med J 2000; 320: 1240–1261.

    Article  CAS  Google Scholar 

  17. Hong Kong Education and Manpower Bureau. A brief report on the surveys ‘physical fitness status of Hong Kong school pupils’, 1998–2000 Retrieved 2004, from http://cd.ed.gov.hk/peweb/kla.asp.

  18. Johnson BL, Nelson JK . Practical measurements for evaluation in physical education 4th edn. Burgess Publishing Company, Minneapolis, MN, 1986.

    Google Scholar 

  19. Pizarro DC . Reliability of the health related fitness test for mainstreamed educable and trainable mentally handicapped adolescents. Adapt Phys Act Quart 1990; 7: 240–248.

    Google Scholar 

  20. Johnson RE, Lavay B . Fitness testing for children with special needs: an alternative approach. J Phys Ed Rec Dance 1989; 60: 50–53.

    Article  Google Scholar 

  21. Turley KR, Wilmore JH, Simons-Morton B, Williston JM, Epping JR, Dahlstrom G . The reliability and validity of the 9-minute run in third-grade children. Pediatr Exerc Sci 1994; 6: 178–187.

    Article  Google Scholar 

  22. Vodak PA, Wilmore JH . Validity of the 6-min jog-walk and the 600-yard run-walk in estimating endurance capacity in boys, 9–12 years of age. Res Quart Ex Sport 1975; 46: 230–234.

    CAS  Google Scholar 

  23. Heyward VH, Stolarczyk LM . Applied Body Composition Assessment. Human Kinetics: Champaign, IL, 1996.

    Google Scholar 

  24. Ulrich DA . Test of Gross Motor Development Examiner's Manual 2nd edn. Pro-Ed: Austin, TX, 2000.

    Google Scholar 

  25. Okely AD, Booth ML, Patterson JW . Relationship of cardiorespiratory endurance to fundamental movement skill proficiency among adolescents. Pediatr Exerc Sci 2001; 13: 380–391.

    Article  Google Scholar 

  26. Okely AD, Booth ML, Patterson JW . Relationship of physical activity to fundamental movement skills among adolescents. Med Sci Sports Exerc 2001; 33: 1899–1904.

    Article  CAS  PubMed  Google Scholar 

  27. Baumgartner TA . Norm-referenced measurement: reliability. In: Safrit MJ, Wood TM (eds). Measurement Concepts in Physical Education and Exercise Science. Human Kinetics: Champaign, IL, 1989. pp 45–71.

    Google Scholar 

  28. Cohen J . Statistical Power Analysis for the Behavioral Sciences. Lawrence Erlbaum Associations: Hillsdale, NJ, 1988.

    Google Scholar 

  29. Hong Kong Commission on Youth. Youth in Hong Kong: A Statistical Profile 2002 Retrieved 2005, from http://www.info.gov.hk/coy/eng/report/index.htm.

  30. US Department of Health and Human Services. Healthy People 2010: Understanding and Improving Health. US Government Printing Office: Washington, DC, 2000.

  31. Rimmer JH, Braddock D, Fujiura G . Prevalence of obesity in adults with mental retardation: implications for health promotion and disease prevention. Ment Retard 1993; 31: 105–110.

    CAS  PubMed  Google Scholar 

  32. Chatrath R, Shenoy R, Serratto M, Thoele DG . Physical fitness of urban American children. Pediatr Cardiol 2002; 23: 608–612.

    Article  CAS  PubMed  Google Scholar 

  33. Manios Y, Yiannakouris N, Papoutsakis C, Moschonis G, Magkos F, Skenderi K et al. Behavioral and physiological indices related to BMI in a cohort of primary schoolchildren in Greece. Am J Hum Biol 2004; 16: 639–647.

    Article  PubMed  Google Scholar 

  34. Lloyd LK, Bishop PA, Walker JL, Sharp KR, Richardson MT . The influence of body size and composition on the FITNESSGRAM test performance and the adjustment of FITNESSGRAM test scores of skinfold thickness in youth. Meas Phys Ed Exerc Sci 2003; 7: 205–226.

    Article  Google Scholar 

  35. Fernhall B, Pitetti KH, Stubbs N, Stadler L . Validity and reliability of the 1/2 mile run-walk as an indicator of aerobic fitness in children with mental retardation. Pediatr Exerc Sci 1996; 8: 130–142.

    Article  Google Scholar 

  36. Chaiwanichsiri D, Sanguanrungsirikul S, Suwannakul W . Poor physical fitness of adolescents with mental retardation at Rajanukul School, Bangkok. J Med Assoc Thai 2000; 83: 1387–1392.

    CAS  PubMed  Google Scholar 

  37. Gillespie M . Cardiovascular fitness of young Canadian children with and without mental retardation. Ed Train Dev Disabil 2003; 38: 296–301.

    Google Scholar 

  38. MacDonncha C, Watson AWS, McSweeney T, O'Donovan DJ . Reliability of Eurofit physical fitness items for adolescent males with and without mental retardation. Adapt Phys Act Quart 1999; 16: 86–95.

    Google Scholar 

  39. Fernhall B, Pitetti KH . Leg strength is related to endurance run performance in children and adolescents with mental retardation. Pediatr Exerc Sci 2000; 12: 324–333.

    Article  Google Scholar 

  40. Deforche B, Lefevre J, De Bourdeaudhuij I, Hills A, Duquet W, Bouckaert J . Physical fitness and physical activity in obese and nonobese Flemish youth. Obes Res 2003; 11: 434–441.

    Article  PubMed  Google Scholar 

  41. Hong Y, Chan KM, Li JX . Health-related physical fitness of school children in Hong Kong and mainland China. J Comp Phys Ed Sport 1998; 20: 2–10.

    Google Scholar 

  42. Macfarlane DJ . Some disturbing trends in the level of habitual physical activity in Hong Kong primary school children: preliminary findings. Hong Kong J Sports Med Sports Sci 1997; 5: 42–46.

    Google Scholar 

  43. McKenzie TL, Sallis JF, Broyles SL, Zive MM, Nader PR, Berry CC et al. Childhood movement skills: predictors of physical activity in Anglo American and Mexican American adolescents? Res Quart Exerc Sport 2002; 73: 238–244.

    Article  Google Scholar 

  44. Reeves L, Broeder CE, Kennedy-Honeycutt L, East C . Relationship of fitness and gross motor skills for five- to six-yr-old children. Percept Motor Skills 1999; 89: 739–747.

    Article  CAS  PubMed  Google Scholar 

  45. Draheim CC, Williams DP, McCubbin JA . Prevalence of physical inactivity and recommended physical activity in community-based adults with mental retardation. Ment Retard 2002; 40: 436–444.

    Article  PubMed  Google Scholar 

  46. Chow B, Frey GC, Cheung S-Y, Louie L . An examination of health-related physical fitness levels in Hong Kong youth with intellectual disability. J Exerc Sci Fit 2005; 3: 9–16.

    Google Scholar 

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Authors and Affiliations

  1. Department of Kinesiology, Indiana University, Bloomington, IN, USA

    G C Frey

  2. Department of Physical Education, Hong Kong Baptist University, Kowloon Tong, Hong Kong

    B Chow

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Frey, G., Chow, B. Relationship between BMI, physical fitness, and motor skills in youth with mild intellectual disabilities. Int J Obes 30, 861–867 (2006). https://doi.org/10.1038/sj.ijo.0803196

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