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Br J Sports Med. 2000 Feb; 34(1): 18–22.
PMCID: PMC1724140

Effects of one year of resistance training on the relation between muscular strength and bone density in elderly women


Objectives—There is a paucity of long term studies on exercise training in elderly women. The purpose of this study was to investigate the effects of one year of progressive resistance exercise (PRE) on dynamic muscular strength and the relations to bone mineral density (BMD) in elderly women.

Methods—Forty four healthy sedentary women (mean age 68.8 years) volunteered for this study and were randomly assigned to either an exercise group or a control group. The exercise group were involved in three one hour sessions a week for 52 weeks of supervised PRE to strengthen the large muscle groups of the body, while the control group were instructed to continue their normal lifestyle. The exercise circuit included three sets of eight repetitions at 75% of one repetition maximum focused on the large muscle groups. BMD was measured by dual energy x ray absoptiometry (Lunar DPX) at the lumbar spine and at three sites in the proximal femur. Other selected parameters of physical fitness were also measured.

Results—Statistical analyses (analysis of covariance) showed significant strength gains (p<0.01) in bilateral bench press (>29%), bilateral leg press (>19%), and unilateral biceps curl (>20%). No significant difference between groups was evident in body weight, grip strength, flexibility, waist to hip ratio, or the sum of eight skinfolds. Significant relations (p<0.05) were recorded between dynamic leg strength and the BMD of the femoral neck, Ward's triangle, and the lumbar spine.

Conclusions—Significant strength changes, after one year of PRE, were evident in elderly women, and the muscle increases may parallel changes in BMD; however, correlation coefficients were moderate.

Key Words: strength training; muscular strength; bone density; elderly

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Selected References

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  • Taunton JE, Rhodes EC, Wolski LA, Donelly M, Warren J, Elliot J, McFarlane L, Leslie J, Mitchell J, Lauridsen B. Effect of land-based and water-based fitness programs on the cardiovascular fitness, strength and flexibility of women aged 65-75 years. Gerontology. 1996;42(4):204–210. [PubMed]
  • Larson EB. Exercise, functional decline and frailty. J Am Geriatr Soc. 1991 Jun;39(6):635–636. [PubMed]
  • Cook PJ, Exton-Smith AN, Brocklehurst JC, Lempert-Barber SM. Fractured femurs, falls and bone disorders. J R Coll Physicians Lond. 1982 Jan;16(1):45–49. [PubMed]
  • Martin AD, Silverthorn KG, Houston CS, Bernhardson S, Wajda A, Roos LL. The incidence of fracture of the proximal femur in two million Canadians from 1972 to 1984. Projections for Canada in the year 2006. Clin Orthop Relat Res. 1991 May;(266):111–118. [PubMed]
  • Rogers MA, Evans WJ. Changes in skeletal muscle with aging: effects of exercise training. Exerc Sport Sci Rev. 1993;21:65–102. [PubMed]
  • Aniansson A, Grimby G, Rundgren A. Isometric and isokinetic quadriceps muscle strength in 70-year-old men and women. Scand J Rehabil Med. 1980;12(4):161–168. [PubMed]
  • Charette SL, McEvoy L, Pyka G, Snow-Harter C, Guido D, Wiswell RA, Marcus R. Muscle hypertrophy response to resistance training in older women. J Appl Physiol (1985) 1991 May;70(5):1912–1916. [PubMed]
  • Cress ME, Thomas DP, Johnson J, Kasch FW, Cassens RG, Smith EL, Agre JC. Effect of training on VO2max, thigh strength, and muscle morphology in septuagenarian women. Med Sci Sports Exerc. 1991 Jun;23(6):752–758. [PubMed]
  • Dalsky GP, Stocke KS, Ehsani AA, Slatopolsky E, Lee WC, Birge SJ., Jr Weight-bearing exercise training and lumbar bone mineral content in postmenopausal women. Ann Intern Med. 1988 Jun;108(6):824–828. [PubMed]
  • Frontera WR, Meredith CN, O'Reilly KP, Knuttgen HG, Evans WJ. Strength conditioning in older men: skeletal muscle hypertrophy and improved function. J Appl Physiol (1985) 1988 Mar;64(3):1038–1044. [PubMed]
  • Häkkinen K, Pakarinen A. Serum hormones and strength development during strength training in middle-aged and elderly males and females. Acta Physiol Scand. 1994 Feb;150(2):211–219. [PubMed]
  • Morganti CM, Nelson ME, Fiatarone MA, Dallal GE, Economos CD, Crawford BM, Evans WJ. Strength improvements with 1 yr of progressive resistance training in older women. Med Sci Sports Exerc. 1995 Jun;27(6):906–912. [PubMed]
  • Nichols JF, Omizo DK, Peterson KK, Nelson KP. Efficacy of heavy-resistance training for active women over sixty: muscular strength, body composition, and program adherence. J Am Geriatr Soc. 1993 Mar;41(3):205–210. [PubMed]
  • Shephard RJ. The scientific basis of exercise prescribing for the very old. J Am Geriatr Soc. 1990 Jan;38(1):62–70. [PubMed]
  • Zhang J, Feldblum PJ, Fortney JA. Moderate physical activity and bone density among perimenopausal women. Am J Public Health. 1992 May;82(5):736–738. [PMC free article] [PubMed]
  • Aniansson A, Rundgren A, Sperling L. Evaluation of functional capacity in activities of daily living in 70-year-old men and women. Scand J Rehabil Med. 1980;12(4):145–154. [PubMed]
  • Hughes VA, Frontera WR, Dallal GE, Lutz KJ, Fisher EC, Evans WJ. Muscle strength and body composition: associations with bone density in older subjects. Med Sci Sports Exerc. 1995 Jul;27(7):967–974. [PubMed]
  • Sievänen H, Oja P, Vuori I. Precision of dual-energy x-ray absorptiometry in determining bone mineral density and content of various skeletal sites. J Nucl Med. 1992 Jun;33(6):1137–1142. [PubMed]
  • Pyka G, Lindenberger E, Charette S, Marcus R. Muscle strength and fiber adaptations to a year-long resistance training program in elderly men and women. J Gerontol. 1994 Jan;49(1):M22–M27. [PubMed]
  • Fiatarone MA, Marks EC, Ryan ND, Meredith CN, Lipsitz LA, Evans WJ. High-intensity strength training in nonagenarians. Effects on skeletal muscle. JAMA. 1990 Jun 13;263(22):3029–3034. [PubMed]
  • Fiatarone MA, O'Neill EF, Ryan ND, Clements KM, Solares GR, Nelson ME, Roberts SB, Kehayias JJ, Lipsitz LA, Evans WJ. Exercise training and nutritional supplementation for physical frailty in very elderly people. N Engl J Med. 1994 Jun 23;330(25):1769–1775. [PubMed]
  • Zimmermann CL, Smidt GL, Brooks JS, Kinsey WJ, Eekhoff TL. Relationship of extremity muscle torque and bone mineral density in postmenopausal women. Phys Ther. 1990 May;70(5):302–309. [PubMed]
  • Bevier WC, Wiswell RA, Pyka G, Kozak KC, Newhall KM, Marcus R. Relationship of body composition, muscle strength, and aerobic capacity to bone mineral density in older men and women. J Bone Miner Res. 1989 Jun;4(3):421–432. [PubMed]
  • Ryan AS, Treuth MS, Hunter GR, Elahi D. Resistive training maintains bone mineral density in postmenopausal women. Calcif Tissue Int. 1998 Apr;62(4):295–299. [PubMed]

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