http://www.cnr.it/ontology/cnr/individuo/prodotto/ID10039
The impact of gender, body dimension and body composition on hand-grip strength in healthy children (Articolo in rivista)
- Type
- Label
- The impact of gender, body dimension and body composition on hand-grip strength in healthy children (Articolo in rivista) (literal)
- Anno
- 2002-01-01T00:00:00+01:00 (literal)
- Alternative label
Sartorio A., Lafortuna C.L., Pogliaghi S., Trecate L. (2002)
The impact of gender, body dimension and body composition on hand-grip strength in healthy children
in Journal of endocrinological investigation (Testo stamp.)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Sartorio A., Lafortuna C.L., Pogliaghi S., Trecate L. (literal)
- Pagina inizio
- Pagina fine
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- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Titolo
- The impact of gender, body dimension and body composition on hand-grip strength in healthy children (literal)
- Abstract
- Maximum handgrip (HG) strength, body composition and main
anthropometric variables were evaluated in 278 children with
normal weight and growth, aged 5-15 yr divided into three age
groups: group 1, age 7.6 yr ± 0.9 SD, (Tanner stage 1); group 2,
age 10.8 ± 0.7, Tanner stage: 2-3; group 3, age 13.2 ± 0.9, Tanner
stage: 4-5). Weight, height, body surface area (BSA), BMI, %
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 *10 0.051 age, r2 = 0.986,
p<0.001 in males and dHG = 6.163 *10 0.045 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 what 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 normalised for FFM. Thus, in general, dHG strength normalised for
FFM resulting 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 between 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.
(literal)
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