8.4: Bone Health
- Page ID
- 292839
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)Bones provide support, otherwise our bodies would be like a sack of organs and tissue – without bones, we would collapse! The ribcage protects the heart and lungs, the pelvis protects the reproductive organs. Bones provide the attachment points for muscles to allow for movement. Many bones contain specialized tissue called red bone marrow, which is responsible for red blood production. Red Blood Cells transport oxygen to tissues throughout the body. Because bones are made of minerals (calcium and phosphorus), when dietary intake is deficient, bones can be broken down by the body to supply minerals to the body for continued life.
Bones throughout your life will change shape and size to better serve their function. This means that they are forming and breaking down throughout your life. Ossification is the process of bone formation (Breeland et al., 2023). Ossification is good. During childhood and adolescence new bones are formed at a much faster rate than they are broken down. Ossification begins to outpace bone breakdown until peak bone mass is reached, and for females that is at age 18, and for males, age 20. Bones will continue to harden and increase in density through your 20s, and ossification slows down and completely stops by age 30. Therefore, building bone health early in life is really important and calcium absorption is crucial to this process. Think of bone health as a retirement plan, so that after age 30 you have a high peak bone mass to sustain strong bones for the rest of your life. Bones serve five functions:
- Support
- Protection
- Movement
- Blood Cell Production
- Mineral Storage
Bone ossification, also called osteogenesis, is the process of bone formation.
“Osteoporosis causes bones to become weak and brittle... Bone is living tissue that is constantly being broken down and replaced. Osteoporosis occurs when the creation of new bone doesn't keep up with the loss of old bone. Osteoporosis affects men and women of all races. But white and Asian women, especially older women who are past menopause, are at highest risk. Medicines, healthy diet and weight-bearing exercise can help prevent bone loss or strengthen already weak bones” (Mayo Clinic, 2024).
Reports indicate that consumption of beverages that contain caffeine has been associated with reduced bone mass resulting in increased risk of fracture. The negative effect of caffeine is related to calcium absorption. This risk could be fully offset by as little as 1-2 tablespoons of milk per day, eating cottage cheese, yogurt, or other calcium rich foods such as broccoli. Vitamin D is also important to maintain strong bones. Exercise that combines strength training exercises with weight-bearing and balance exercises can also slow bone loss.
(https://www.myupchar.com/en (1 October 2019). Depiction of an Osteoporosis patient.png. https://commons.wikimedia.org/wiki/File:Depiction_of_an_Osteoporosis_patient.png)