Age, physical activity, physical fitness, body composition, and incidence of orthopedic problems

C. A. Macera, Kirby L. Jackson, Gerald W. Hagenmaier, Jennie J. Kronenfeld, Harold W. Kohl, Steven N. Blair

Research output: Contribution to journalArticle

43 Scopus citations

Abstract

The incidence of orthopedic problems was examined in 5 £82 men and women who attended the Cooper Clinic in Dallas, Texas between 1974 and 1982. The effects of age, physical activity, physical fitness, and body mass index (EMI) on the occurrence of these problems were examined using a proportional hazards approach. The expected risk of orthopedic problems per person- year was 0.045for men and 0.046for women. For men, physical fitness, BMI, and physical activity were associated with orthopedic problems, while for women, physical activity was the main predictor. Age was not a factor for either gender. The effect of change in physical fitness, physical activity, and BMI was examined in a subset of 2^25 persons with more than one visit to the clinic. For women, physical activity and a decrease in BMI were associated with orthopedic problems, while for men none of those factors were significant. Again, age was not a factor in either group. The absence of any age effect on the occurrence of problems suggests that with regard to orthopedic problems, moderate amounts of physical activity in generally healthy persons may be recommended without special consideration as to age.

Original languageEnglish (US)
Pages (from-to)225-233
Number of pages9
JournalResearch Quarterly for Exercise and Sport
Volume60
Issue number3
DOIs
StatePublished - Sep 1989

Keywords

  • Age
  • Body composition
  • Incidence of orthopedic problems
  • Physical activity
  • Physical fitness

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Nephrology

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    Macera, C. A., Jackson, K. L., Hagenmaier, G. W., Kronenfeld, J. J., Kohl, H. W., & Blair, S. N. (1989). Age, physical activity, physical fitness, body composition, and incidence of orthopedic problems. Research Quarterly for Exercise and Sport, 60(3), 225-233. https://doi.org/10.1080/02701367.1989.10607444