1. Introduction
  1.1 Background
  1.2 Significance of the Study
  1.3 Objectives

2. Overview of Osteoporosis
  2.1 Definition and Prevalence
  2.2 Risk Factors
  2.3 Consequences of Osteoporosis

3. Exercise and Bone Health
  3.1 Effects of Exercise on Bone Density
  3.2 Types of Exercise for Osteoporosis Prevention
      3.2.1 Weight-Bearing Exercises
      3.2.2 Resistance Training
      3.2.3 Impact and High-Intensity Exercises
      3.2.4 Flexibility and Balance Exercises
  3.3 Duration and Intensity of Exercise
  3.4 Exercise Guidelines for Osteoporosis Prevention

4. Mechanisms of Exercise on Bone Health
  4.1 Bone Remodeling Process
  4.2 Effects of Exercise on Bone Cells
  4.3 Hormonal and Biochemical Factors
  4.4 Mechanical Loading and Bone Adaptation

5. Clinical Studies on Exercise and Osteoporosis Prevention
  5.1 Randomized Controlled Trials
  5.2 Longitudinal Studies
  5.3 Meta-Analyses and Systematic Reviews