Question

bone density can be increased by ______.

multiple choice

walking
eating a high-carbohydrate diet
avoiding too much sun exposure
eating a high-protein diet
eating smaller meals 5 times a day

Explanation:

Analyze the physiological mechanisms of bone density regulation

Using the Mechanical Loading on Bone and Osteogenic Exercises knowledge points

$$ \text{Mechanical Stress} ightarrow \text{Osteoblast Activation} ightarrow \text{Bone Deposition} $$

Weight-bearing physical activities like walking apply mechanical forces to bones, stimulating osteoblasts to lay down new bone tissue and increase mineral density.

Evaluate the dietary and lifestyle options

• Eating a high-carbohydrate diet does not stimulate bone deposition.
• Avoiding sun exposure reduces Vitamin D synthesis, which actually decreases bone density.
• Eating smaller meals 5 times a day has no direct impact on bone mineralization.
• Eating a high-protein diet alone, without mechanical loading, does not significantly increase bone density.

Answer:

• walking (Correct answer)
• eating a high-carbohydrate diet
• avoiding too much sun exposure
• eating a high-protein diet
• eating smaller meals 5 times a day