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Differences in Physical Characteristics of the Lower Extremity and Running Biomechanics Between Different Age Groups

Author

Listed:
  • Jongbin Kim

    (Division of Kinesiology, Silla University, Busan 46958, Korea)

  • Sang-Kyoon Park

    (Motion Innovation Center, Korea National Sport University, Seoul 05541, Korea)

Abstract

(1) Background: The objective of this study was to determine physical and biomechanical changes in age groups upon running. (2) Method: 75 male adults (20–80s) participated in the study. Bone mineral density and lower extremity joint strength were measured according to age-increase targeting. Based on age, correlations among running characteristics, impulse, impact force, maximum vertical ground reaction force, loading rate, lower extremity joint 3D range of motion, joint moment, and power upon running motion were calculated. (3) Result: Older runners tended to show lower bone mineral density, extremity maximum strength, stride time, and stride distance, with smaller RoM and joint power of ankle and knee joints in the sagittal plane, compared with younger subjects. However, there were no significant correlations between age and impact variables (i.e., impulse, impact force, peak GRF, and loading rate) during running. (4) Conclusion: Older runners tend to show weaker physical strength characteristics, such as bone mineral density and muscle strength and lower joint functionality of ankle and knee joints during running, compared with younger runners. Therefore, strengthening the lower extremity muscle and improving dynamic joint function, especially for ankle joints, can be helpful for injury prevention during running.

Suggested Citation

  • Jongbin Kim & Sang-Kyoon Park, 2022. "Differences in Physical Characteristics of the Lower Extremity and Running Biomechanics Between Different Age Groups," IJERPH, MDPI, vol. 19(7), pages 1-12, April.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:7:p:4320-:d:786756
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