Bone-Strengthening Physical Activity Declines Most Among Least Fit Youth

The following is excerpted from an online article posted by MedicalXpress.

For the first time, a Finnish study conducted at the University of Jyväskylä has investigated changes in the amount of exercise that strengthens the bones in adolescence. The study proved that bone-strengthening physical activity levels decrease during adolescence. The decline is steepest among the least fit youth. Physical activity during childhood and adolescence is essential for developing and maintaining strong and healthy bones.

The study examined changes in bone-strengthening physical activity over a three-year period among youth who were aged 11 years at the start of the study. Although bone-strengthening physical activity levels decreased among all youth, they remained higher among those who were physically fit. The rate of decline was also faster among the least fit youth.

Prepubescence and the onset of puberty are especially favorable times to promote bone health through physical activity. Bone-strengthening activities include sufficiently intense impact and other high-force loading, such as jumping, hopping, and changes of direction. Many racquet sports, bat-and-ball games, and artistic gymnastics are good examples of bone-strengthening activities.

“Most of the bone mass is accumulated during childhood and adolescence. Low bone mass increases the risk of osteoporosis later in life,” says Dr. Eero Haapala from the Faculty of Sport and Health Sciences at the University of Jyväskylä.

The research was published in the Journal of Medicine and Science in Sport.

Source: MedicalXpress

Help us reach the next generation of families

Back to Top

[reposted by] Jim Liebelt

Jim is Senior Writer, Editor and Researcher for HomeWord. Jim has 40 years of experience as a youth and family ministry specialist, having served over the years as a pastor, author, consultant, mentor, trainer, college instructor, and speaker. Jim’s HomeWord culture blog also appears on and Jim and his wife Jenny live in Quincy, MA.

  • About HomeWord

    HomeWord helps families succeed by creating Biblical resources that build strong marriages, confident parents, empowered kids and healthy leaders. Founded by Jim Burns, HomeWord seeks to advance the work of God in the world by educating, equipping, and encouraging parents and churches. Learn More »

  • Support Our Mission

    HomeWord is non-profit, donor supported ministry. If you would like to partner with HomeWord in our effort to help more parents and families you can make a donation. Your investment will allow us to expand this ministry by offering more resources to families and churches in need.

  • Contact Information

    • HomeWord
      PO Box 1600
      San Juan Capistrano, CA

    • Send us an email

    • 800-397-9725
      (M-F: 8:30am-5pm PST)