A Study of Force and Cross‐Sectional Area of Adductor Pollicis Muscle in Female Hip Fracture Patients

OBJECTIVES: To determine the extent of muscle weakness in older female hip fracture patients compared with healthy older and young women; to determine the extent to which this weakness is caused by a decline of the force produced per unit area of muscle rather than by a decline in muscle bulk; and to investigate the mechanism of the decline in force per unit area.

[1]  S. Lord,et al.  Prediction of osteoporotic fractures by postural instability and bone density. , 1993, BMJ.

[2]  A A Vandervoort,et al.  Contractile changes in opposing muscles of the human ankle joint with aging. , 1986, Journal of applied physiology.

[3]  J. Faulkner,et al.  Contractile properties of skeletal muscles from young, adult and aged mice. , 1988, The Journal of physiology.

[4]  P. Merton Voluntary strength and fatigue , 1954, The Journal of physiology.

[5]  O. Rutherford,et al.  The relationship of muscle and bone loss and activity levels with age in women. , 1992, Age and ageing.

[6]  B. Saltin,et al.  Function, morphology and protein expression of ageing skeletal muscle: a cross-sectional study of elderly men with different training backgrounds. , 1990, Acta physiologica Scandinavica.

[7]  R. Woledge,et al.  Muscle weakness in women occurs at an earlier age than in men, but strength is preserved by hormone replacement therapy. , 1993, Clinical science.

[8]  Contractile properties of old rat muscles: effect of increased use. , 1989, Journal of applied physiology.

[9]  Effect of subnutrition on normalized muscle force and relaxation rate in human subjects using voluntary contractions. , 1989, Clinical science.

[10]  D. Wade,et al.  The Barthel ADL Index: a reliability study. , 1988, International disability studies.

[11]  G. Piazzesi,et al.  The contractile response during steady lengthening of stimulated frog muscle fibres. , 1990, The Journal of physiology.

[12]  C. Cooper,et al.  Physical activity, muscle strength, and calcium intake in fracture of the proximal femur in Britain. , 1988, BMJ.

[13]  R. Woledge,et al.  Neither changes in phosphorus metabolite levels nor myosin isoforms can explain the weakness in aged mouse muscle. , 1993, The Journal of physiology.

[14]  R. Woledge,et al.  The weakness of old age is not due to failure of muscle activation. , 1992, Journal of gerontology.

[15]  R. Woledge,et al.  Effect of age on voluntary force and cross-sectional area of human adductor pollicis muscle. , 1989, Quarterly journal of experimental physiology.

[16]  R. Woledge,et al.  Muscle Force Generation and Age: The Role of Sex Hormones , 1993 .

[17]  M Stokes,et al.  The size and strength of the quadriceps muscles of old and young men. , 1985, Clinical physiology.

[18]  R. Woledge,et al.  In mice, the muscle weakness due to age is absent during stretching. , 1991, The Journal of physiology.

[19]  C Zetterberg,et al.  Impaired muscle function with aging. A background factor in the incidence of fractures of the proximal end of the femur. , 1984, Clinical orthopaedics and related research.

[20]  T. Hortobágyi,et al.  The influence of aging on muscle strength and muscle fiber characteristics with special reference to eccentric strength. , 1995, The journals of gerontology. Series A, Biological sciences and medical sciences.

[21]  H. Hodkinson Evaluation of a mental test score for assessment of mental impairment in the elderly. , 1972, Age and ageing.

[22]  A A Vandervoort,et al.  Eccentric knee strength of elderly females. , 1990, Journal of gerontology.

[23]  D. Skelton,et al.  Exercise studies with elderly volunteers. , 1994, Age and ageing.