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Journal of Endocrinological Investigation

, Volume 25, Issue 5, pp 431–435 | Cite as

The impact of gender, body dimension and body composition on hand-grip strength in healthy children

  • A. SartorioEmail author
  • C. L. Lafortuna
  • S. Pogliaghi
  • L. Trecate
Original Article

Abstract

Maximum hand-grip (HG) strength, body composition and main anthropometric variables were evaluated in 278 children with normal weight and growth, aged 5–15 yr divided into 3 age groups: group 1, age±SD: 7.6±0.9 yr 7.6 ±0.9 SD (Tanner stage 1); group 2, age: 10.8±0.7 yr (Tanner stage: 2-3); group 3, age: 13.2±0.9 yr (Tanner stage: 4-5). Weight, height, body surface area (BSA), BMI, percent body fat (BF) and fat free mass (FFM) increased progressively and significantly from the younger to the older age group. A significant difference between genders was detected only for BF and FFM, females having a higher fat mass and a lower FFM compared to males. Most children were right-handed (91%). In either genders, a curvilinear relation was detected between HG strength and age, with best fit for the dominant (d) hand given by the equations: dHG=5.891 *100.051 age, r2=0.986, p<0.001 in males and dHG=6.163 *100.045 age, r2=0.973, p<0.001 in females. The increase in HG strength after 11 yr appears to be steeper in males as compared with that found in females. In both d and non-dominant (nd) hand, a significant difference in HG strength was detected between males and females, the average difference being about 10% at all ages. For both genders, nd hand was significantly weaker than d hand in the older age groups (2 and 3), but not in the younger group 1. Age and gender-dependent differences in HG strength (but not differences between d and nd hand) disappear if HG strength is normalized for FFM. Thus, in general, dHG strength normalized for FFM resulted on average to be 0.67±0.11 kg/kg. A multiple linear regression analysis indicated that HG was positively correlated with BMI, BSA, stature, stature2 and FFM (p<0.001 for all correlations) without differences between genders, while a negative correlation was found between HG strength and %BF. The most significant correlation was found between HG strength and FFM, without any significant difference between genders, so that the overall equation describing the line for the d hand was: dHG strength= 2.32+0.63 FFM, r2=0.72, p<0.001. In conclusion, the present study indicates that the age-dependent increase of HG strength as well as the be-tween-gender differences are strongly related to changes of FFM values occurring during childhood. Moreover, the study provides a standard normative value of maximal HG strength for the healthy children population in Northern Italy.

Key-words

Body composition children fat free mass hand-grip 

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References

  1. 1.
    Newman D.G., Pearn J., Barnes A., Young C.M., Kehoe M., Newman J. Norms for hand grip strength. Arch. Dis. Child. 1984, 59: 453–459.PubMedCentralPubMedCrossRefGoogle Scholar
  2. 2.
    Desrosiers J., Bravo G., Hebert R., Dutil E. Normative data for grip strength of elderly men and women. Am. J. Occup. Ther. 1995, 49: 637–644.PubMedCrossRefGoogle Scholar
  3. 3.
    Wessel J.A., Nelson R.C. Relationship between grip strength and achievement in physical education among college women. Res. Q. 1961, 32: 244–248.Google Scholar
  4. 4.
    Tinkle W.F., Montove H.J. Relationship between grip strength and achievement in physical education among college men. Res. Q. 1961, 32: 238–243.Google Scholar
  5. 5.
    Heyward V., McCleary L. Analysis of the static strength and relative endurance of women athletes. Res. Q. 1975, 48: 703–710.Google Scholar
  6. 6.
    Robertson A., Deitz J. A description of grip strength in preschool children. Am. J. Occup. Ther. 1988, 42: 647–652.PubMedCrossRefGoogle Scholar
  7. 7.
    Mathiowetz V., Wiemer D.M., Federman S.M. Grip and pinch strength: norms for 6-to 19-years-olds. Am. J. Occup. Ther. 1986, 40: 705–711.PubMedCrossRefGoogle Scholar
  8. 8.
    Link L., Lukens S., Bush M.A. Spherical grip strength in children 3 to 6 years of age. Am. J. Occup. Ther. 1995, 49: 318–326.PubMedGoogle Scholar
  9. 9.
    Bell N.A., McClure P.D., Hill R.J., Davies P.S.W. Assessment of foot-to-foot bioelectrical impedance analysis for the prediction of total body water. Eur. J. Clin. Nutr. 1998, 52: 856–859.PubMedGoogle Scholar
  10. 10.
    Mathiowetz V., Weber K., Volland G., Kashman N. Reliability and validity of grip and pinch strength evaluation. J. Hand Surg. 1984, 9: 222–226.Google Scholar
  11. 11.
    Zar J.H. Biostatistical analysis, ed. 2. Prentice-Hall, Eagle-wood Cliffs, 1984, pp. 292–305.Google Scholar
  12. 12.
    Bell R.D., Mac Dougall J.D., Billeter R., Howald H. Muscle fibre types and morphometric analysis of skeletal muscle in six-year-old children. Med. Sci. Sports Exerc. 1980, 12: 28–31.PubMedGoogle Scholar
  13. 13.
    Gariod L., Binzoni T., Ferretti G., Le Bas J.F., Reutenauer H., Cerretelli P. Standardisation of 31 phosphorus-nuclear magnetic resonance spectroscopy determination of high energy phosphates in humans. Eur. J. Appl. Physiol. 1994, 68: 107–110.Google Scholar
  14. 14.
    Ramsey J.A., Blimkie C.J.R., Smith K., Garner S., Mac Dougall J.D., Sale D.G. Strength training effects in pre-pubescent boys. Med. Sci. Sports Exerc. 1990, 22: 605–614.Google Scholar
  15. 15.
    Kanehisa H., Ikegawa S., Tsunoda N., Fukunaga T. Strength and cross-sectional areas of reciprocal muscle groups in the upper arm and thigh during adolescence. Int. J. Sports Med. 1995, 16: 54–60.PubMedGoogle Scholar
  16. 16.
    Bona G., Petri A., Rapa A., Conti A., Sartorio A. on behalf of the Italian Multicentre Study Group for “Urinary growth hormone”. The impact of gender, puberty and body mass on reference values for urinary growth hormone (GH) excretion in normally growing non-obese and obese children. Clin. Endocrinol. (Oxf.) 1999, 50: 775–781.Google Scholar

Copyright information

© Italian Society of Endocrinology (SIE) 2002

Authors and Affiliations

  • A. Sartorio
    • 1
    • 2
    Email author
  • C. L. Lafortuna
    • 3
  • S. Pogliaghi
    • 3
  • L. Trecate
    • 1
  1. 1.Laboratorio Sperimentale di Ricerche Endocrinologiche (LSRE)Istituto Auxologico Italiano, IRCCSMilanoItaly
  2. 2.Division of Metabolic Diseases IIIIstituto Auxologico Italiano, IRCCSPiancavallo (VB)Italy
  3. 3.Institute of Bioimaging and Molecular PhysiologyCNRMilanItaly

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