Article Text

other Versions

PDF
Adolescent exercise associated with long-term superior measures of bone geometry: A cross-sectional DXA and MRI study
  1. Takeru Kato (t-kato{at}suzuka-u.ac.jp)
  1. 1) Department of Clinical Nutrition, Faculty of Health Science, Suzuka University of Medical Science, Japan
    1. Takenori Yamashita (takenori{at}suzuka-u.ac.jp)
    1. 2) Department of Clinical Radiation, Faculty of Health Science, Suzuka University of Medical Science, Japan
      1. Singo Mizutani
      1. 1) Department of Clinical Nutrition, Faculty of Health Science, Suzuka University of Medical Science, Japan
        1. Akiko Honda (honda.akiko{at}jiss.naash.go.jp)
        1. 3) Japan Institute of Sports Sciences, Japan
          1. Minoru Matumoto (m-minoru{at}cnc.chukyo-u.ac.jp)
          1. 4) Laboratory for Exercise Physiology and Biomechanics, Chukyo University, Japan
            1. Yoshihisa Umemura (yumemura{at}sass.chukyo-u.ac.jp)
            1. 4) Laboratory for Exercise Physiology and Biomechanics, Chukyo University, Japan

              Abstract

              Objective: To investigate whether childhood sports participation, particularly weight-bearing sports, has any effect on bone mineral content (BMC), areal bone mineral density (aBMD) and bone geometric characteristics in middle-aged postmenopausal women. Design/setting: In this cross-sectional comparison of two groups, 46 middle-aged women (mean age, 60.2±5.6 years; range, 52-73 years) were grouped according to sport participation during growth: weight-bearing sports, including high-impact weight-bearing activities; and low-impact non-weight-bearing sports or no participation. Main outcome measures: Dual energy X-ray absorptiometry (DXA)-measured BMC, aBMD in the lumbar spine and femur. Magnetic resonance imaging (MRI) determined bone geometric characteristics in the femur, such as femoral mid-diaphyseal cross-sectional area, periosteal and endosteal perimeters and maximum and minimum second moment of area. Results: Postmenopausal middle-aged women with participation in weight-bearing sports during junior high to high school (12-18 years old) displayed significantly greater BMC in both lumbar spine and femoral neck regions, and also significantly greater femoral mid-diaphyseal bone cross-sectional area, periosteal perimeter and maximum and minimum second moment of area than the non-weight-bearing sports group. Conclusions: Adolescent weight-bearing exercise exerts preservational effects on femoral mid-diaphyseal size and shape, while DXA-measured BMC effectively identified the same tendency. Weight-bearing exercise in youth affects bone, and these effects may be preserved as BMC, geometric and structural advantages even after 40 years.

              Statistics from Altmetric.com

              Request permissions

              If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.