1. Foreword

   • Louis V. Avioli

   EditorialNotes Pages: S1 - S1

2. Prevention of Osteoporosis: Proceedings of the 7th Medical Symposium of the Yrjö Jahnsson Foundation

   • Timo Sahi
   • Esko M. Alhava
   • Reijo Tilvis

   Preface Pages: S3 - S3

3. Significance of osteoporosis: A growing international health care problem

   • Louis V. Avioli

   Introductory Lectures Pages: S5 - S7

4. Incidence of femoral neck fractures: Senile osteoporosis in Finland in the years 1970–1985

   • Olli Simonen

   Introductory Lectures Pages: S8 - S10

5. Pathogenesis of osteoporosis

   • H. Kalervo Väänänen

   Introductory Lectures Pages: S11 - S14

6. Epidemiologic studies of osteoporotic fractures: Methodologic issues

   • Steven R. Cummings

   Methodological Aspects Pages: S15 - S20

7. Bone density measurements

   • Esko M. Alhava

   Methodological Aspects Pages: S21 - S23

8. Use of a marker of collagen formation in osteoporosis studies

   • Juha Risteli
   • Jukka Melkko
   • Leila Risteli

   Methodological Aspects Pages: S24 - S25

9. Use of non-collagen markers in osteoporosis studies

   • Markku T. Parviainen
   • Asta Pirskanen
   • Pekka H. Mäenpää

   Methodological Aspects Pages: S26 - S30

10. Use of histological methods in studies of osteoporosis

    • Ilkka Arnala

    Methodological Aspects Pages: S31 - S32

11. Calcium requirements for optimal skeletal health in women

    • John A. Kanis

    Factors Affecting Bone Metabolism and Osteoporosis Pages: S33 - S41

12. Lifelong calcium intake and prevention of bone fragility in the aged

    • Robert P. Heaney

    Factors Affecting Bone Metabolism and Osteoporosis Pages: S42 - S45

13. Is there a role for vitamin D in osteoporosis?

    • Christel Lamberg-Allardt

    Factors Affecting Bone Metabolism and Osteoporosis Pages: S46 - S49

14. Physical activity effects on bone metabolism

    • Everett L. Smith
    • Catherine Gilligan

    Factors Affecting Bone Metabolism and Osteoporosis Pages: S50 - S54

15. Role of oestrogen in the development of osteoporosis

    • Timothy C. Hillard
    • John C. Stevenson

    Factors Affecting Bone Metabolism and Osteoporosis Pages: S55 - S59

16. Long-term treatment of established osteoporosis with intranasal calcitonin

    • Kirsten Overgaard
    • Claus Christiansen

    Factors Affecting Bone Metabolism and Osteoporosis Pages: S60 - S63

17. Fluoride therapy for osteoporosis: A review of dose response, duration of treatment, and skeletal sites of action

    • B. A. Dure-Smith
    • M. E. Kraenzlin
    • D. J. Baylink

    Factors Affecting Bone Metabolism and Osteoporosis Pages: S64 - S67

18. Is fluoride treatment justified today?

    • Jukka A. Inkovaara

    Factors Affecting Bone Metabolism and Osteoporosis Pages: S68 - S69

19. Alcohol and bone

    • Kalevi Laitinen
    • Matti Välimäki

    Factors Affecting Bone Metabolism and Osteoporosis Pages: S70 - S73

20. Osteoporosis risk factors in perimenopausal women

    • R. Honkanen
    • E. M. Alhava
    • M. Tuppurainen

    Short Communications Pages: S74 - S75

21. Factors related to risk of osteoporosis in 50-year-old women

    • A. Leino
    • O. Impivaara
    • H. Helenius

    Short Communications Pages: S76 - S77

22. Senile osteoporosis and femoral neck fractures in long-stay institutions

    • Olli Simonen
    • Taru Mikkola

    Short Communications Pages: S78 - S79

23. Effect of exercise on osteoporosis induced by ovariectomy in rats

    • J. Tuukkanen
    • Z. Peng
    • H. K. Väänänen

    Short Communications Pages: S80 - S80

24. Effects of Long-term running on spinal mineral content in dogs

    • K. Puustjärvi
    • P. Karjalainen
    • J. Arokoski

    Short Communications Pages: S81 - S82

25. Moderate exercise does not enhance the positive effect of estrogen on bone mineral density in postmenopausal women

    • J. Heikkinen
    • E. Kurttila-Matero
    • H. K. Väänänen

    Short Communications Pages: S83 - S84

26. Hormonal regulation of vitamin D receptor levels and osteocalcin synthesis in human osteosarcoma cells

    • P. Mäenpää
    • A. Mahonen
    • A. Pirskanen

    Short Communications Pages: S85 - S86

27. Serum vitamin D level after an annual intramuscular injection of ergocalciferol

    • R. J. Heikinheimo
    • M. V. Haavisto
    • S. A. Rajala

    Short Communications Pages: S87 - S87

28. Effects of vitamin D and calcium on markers of bone metabolism in geriatric patients with low serum 25-hydroxyvitamin D levels

    • A. Sorva
    • J. Risteli
    • R. Tilvis

    Short Communications Pages: S88 - S89

29. Bone remodeling in osteoporosis associated with rheumatoid arthritis

    • Heikki Kröger
    • Ilkka Arnala
    • Esko M. Alhava

    Short Communications Pages: S90 - S90