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Related Concept Videos

Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the neck...

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Targeted exercises against hip fragility.

R Nikander1, P Kannus, P Dastidar

  • 1Bone Research Group, UKK Institute for Health Promotion Research, 33501 Tampere, Finland.

Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA
|November 13, 2008
PubMed
Summary
This summary is machine-generated.

Odd-impact exercises, like high-impact ones, thicken the femoral neck cortex, reducing hip fragility risk. These exercises are less demanding, offering a feasible approach to bone training.

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Area of Science:

  • Orthopedics and Sports Medicine
  • Bone Physiology
  • Biomechanics

Background:

  • Regional cortical thinning in the femoral neck is a key indicator of hip fragility.
  • Understanding exercise-induced bone adaptations is crucial for preventing fractures.

Purpose of the Study:

  • To investigate the association between different exercise loading types and femoral neck cortical thickness.
  • To identify exercise modalities that can enhance bone density in vulnerable hip regions.

Main Methods:

  • Three-dimensional magnetic resonance imaging (MRI) was used to scan the proximal femur of 91 female athletes and 20 referents.
  • Cortical thickness was measured at four regions of the femoral neck: inferior, anterior, superior, and posterior.
  • Analysis of Covariance (ANCOVA) was employed to compare between-group differences.

Main Results:

  • High-impact exercise significantly increased inferior cortical thickness by approximately 60% compared to controls.
  • Both high-impact and odd-impact exercises increased anterior cortical thickness by approximately 20%.
  • The posterior cortex was also approximately 20% thicker in both high-impact and odd-impact groups.

Conclusions:

  • Moderate-magnitude impacts from odd-loading directions demonstrate a similar capacity to thicken vulnerable femoral neck cortical regions as high-impact exercises.
  • Odd-impact exercises, being mechanically less demanding, present a practical and effective strategy for targeted bone training to combat hip fragility.
  • This research supports the development of targeted exercise programs for the prevention of hip fractures.