"Bounce at the Bell": A novel program of short bouts of exercise improves proximal femur bone mass in early pubertal children

British Journal of Sports Medicine

Volumn 39, Issue 8, 2005, Pages 521-526

  McKay, H A ^a   MacLean, L ^a   Petit, M ^b   MacKelvie O'Brien, K ^a   Janssen, P ^a   Beck, T ^c   Khan, K M ^a  

^a UNIVERSITY OF BRITISH COLUMBIA   (Canada)

^b UNIVERSITY OF MINNESOTA   (United States)

^c JOHNS HOPKINS UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ANTHROPOMETRY; ARTICLE; BODY HEIGHT; BODY WEIGHT; BONE MASS; BONE MINERAL; CALCIUM INTAKE; CHILD; CONTROLLED STUDY; EXERCISE; FEMALE; FEMUR; FEMUR NECK; HUMAN; JUMPING; LUMBAR SPINE; MAJOR CLINICAL STUDY; MALE; PHYSICAL ACTIVITY; PHYSICAL PERFORMANCE; PUBERTY; WEIGHT BEARING;

ANALYSIS OF VARIANCE; ANTHROPOMETRY; BODY MASS INDEX; BODY WEIGHT; BONE DENSITY; CALCIUM, DIETARY; CHILD; COHORT STUDIES; EXERCISE; FEMALE; FEMUR; GYMNASTICS; HUMANS; MALE; PHYSICAL FITNESS; PROSPECTIVE STUDIES; PUBERTY; WEIGHT-BEARING;

EID: 23144461652     PISSN: 03063674     EISSN: None     Source Type: Journal    
DOI: 10.1136/bjsm.2004.014266     Document Type: Article

References (32)

1. Bailey DA, Faulkner RA, McKay HA. Growth, physical activity, and bone mineral acquisition. In: Holloszy JO, ed. Exercise and sport sciences reviews. Baltimore, MD: Williams & Wilkins, 1996:233-66.
2. Glastre C, Braillon P, David L, et al. Measurement of bone mineral content of the lumbar spine by dual energy x-ray absorptiometry in normal children: correlations with growth parameters. J Clin Endocrinol Metab 1990;70:1330-3.
3. Theintz G, Buchs B, Rizzoli R, et al. Longitudinal monitoring of bone mass accumulation in healthy adolescents: evidence for a marked reduction after 16 years of age at the levels of lumbar spine and femoral neck in female subjects. J Clin Endocrinol Metab 1992;75:1060-5.
4. Bonjour JP, Theintz G, Buchs B, et al. Critical years and stages of puberty for spinal and femoral bone mass accumulation during adolescence. J Clin Endocrinol Metab 1991;73:555-63.
5. Khan KM, McKay HA, Kannus P. Physical activity and bone health. Champaign, IL: Human Kinetics, 2001.
6. MacKelvie KJ, Khan KM, McKay HA. Is there a critical period for bone response to weight-bearing exercise in children and adolescents? A systematic review. Br J Sports Med 2002;36:250-7.
7. Kannus P, Haapasalo H, Sankelo M, et al. Effect of starting age of physical activity on bone mass in the dominant arm of tennis and squash players. Ann Intern Med 1995;123:27-31.
8. Seeman E. An exercise in geometry. J Bone Miner Res 2002;17:373-80.
9. Bass SL. The prepubertal years: a uniquely opportune stage of growth when the skeleton is most responsive to exercise? Sports Med 2000;30:73-8.
10. Jarvinen T, Kannus P, Sievanen H. Have the DXA-based exercise studies seriously underestimated the effects of mechanical loading on bone? J Bone Miner Res 1999;14:1634-5.
11. MacKelvie KJ, McKay HA, Khan KM, et al. A school-based exercise intervention augments bone accrual in early pubertal girls. J Pediatr 2001;139:501-8.
12. MacKelvie KJ, McKay HA, Petit MA, et al. Bone mineral response to a 7-month randomized controlled, school-based jumping intervention in 121 prepubertal boys: associations with ethnicity and body mass index. J Bone Miner Res 2002;17:834-44.
13. Petit MA, McKay HM, MacKelvie KJ, et al. A randomized school-based jumping intervention confers site and maturity specific benefits on bone structural properties in girls: a hip structural analysis (HSA) study. J Bone Miner Res 2002;17:363-72.
14. MacKelvie KJ, Khan KM, Petit MA, et al. A school-based exercise intervention elicits substantial bone health benefits: a 2-year randomized controlled trial in girls. Pediatrics 2003;112:e447.
15. MacKelvie KJ, Petit MA, Khan KM, et al. Bone mass and structure are enhanced following a 2-year randomized controlled trial of exercise in prepubertal boys. Bone 2004;34:755-64.
16. McKay HA, Macdonald H, Reed KE, et al. Exercise interventions for health: time to focus on dimensions, delivery, and dollars. Br J Sports Med 2003;37:98-9.
17. McKay HA, Petit MA, Schutz RW, et al. Augmented trochanteric bone mineral density after modified physical education classes: a randomized school-based exercise intervention study in prepubescent and early pubescent children. J Pediatr 2000;136:156-62.
18. Fuchs RK, Bauer JJ, Snow CM. Jumping improves hip and lumbar spine bone mass in prepubescent children: a randomized controlled trial. J Bone Miner Res 2001;16:148-56.
19. Bradney M, Pearce G, Naughton G, et al. Moderate exercise during growth in prepubertal boys: changes in bone mass, size, volumetric density, and bone strength: a controlled prospective study. J Bone Miner Res 1998;13:1814-21.
20. Morris FL, Naughton GA, Gibbs JL, et al. Prospective 10-month exercise intervention in pre-menarcheal girls: positive effects on bone and lean mass. J Bone Miner Res 1997;12:1453-62.
21. Robling AG, Burr DB, Turner CH. Recovery periods restore mechanosensitivity to dynamically loaded bone. J Exp Biol 2001;204:3389-99.
22. Umemura Y, Ishiko T, Yamauchi T, et al. Five jumps per day increase bone mass and breaking force in rats. J Bone Miner Res 1997;12:1480-5.
23. McKay HA, Tsang GC, Heinonen A, et al. Ground reaction forces associated with an effective elementary school based jumping intervention. Br J Sports Med 2005;39:10-4.
24. Tanner JM. Fetus into man. Cambridge: Harvard Press, 1978.
25. CSEP. Canadian physical activity and fitness lifestyle appraisal manual. Ottawa, Canada: Canadian Society for Exercise Physiology, 1998.
26. Barr SI. Associations of social and demographic variables with calcium intakes of high school students. J Am Diet Assoc 1994;94:260-6, 269.
27. Cracker PRE, Bailey DA, Faulkner RA, et al. Measuring general levels of physical activity: preliminary evidence for the physical activity questionnaire for older children. Med Sci Sports Exerc 1997;29:1344-9.
28. Kowalski KC, Cracker PRE, Faulkner RA. Validation of the physical activity questionnaire for older children. Pediatr Exerc Sci 1997;9:174-86.
29. Bailey DA, McKay HA, Mirwald RL, et al. A six year longitudinal study of the relationship of physical activity to bone mineral accrual in growing children: the University of Saskatchewan bone mineral accrual study. J Bone Miner Res 1999;14:1672-9.
30. Hologic. Model QDR-4500 user's guide. Waltham, MA: Hologic, Inc, 1996.
31. Beck TJ, Ruff CB, Warden KE, et al. Predicting femoral neck strength from bone mineral data: a structural approach. Invest Radiol 1990;25:6-18.
32. Heinonen A, Sievanen H, Kannus P, et al. High-impact exercise and bones of growing girls: a 9-month controlled trial. Osteoporosis Int 2000;11:1010-7.