Isometric back strength in different age groups

Normative data on isometric back strength (IBS) are presented. The IBS of both sexes increased with chronological age, peaked at the third decade of life, and gradually declined thereafter. Males were significantly (p less than 0.001) stronger than females in all age groups, the difference ranging b...

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Bibliographic Details
Published inInternational disability studies Vol. 13; no. 3; p. 87
Main Authors Balogun, J A, Olawoye, A G, Oladipo, V A
Format Journal Article
LanguageEnglish
Published Switzerland 1991
Subjects
Adolescent
Adult
Age Factors
Aged
Back - physiology
Body Mass Index
Child
Female
Humans
Isometric Contraction
Male
Middle Aged
Nigeria
Reference Values
Sex Factors
Nigeria
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Summary:Normative data on isometric back strength (IBS) are presented. The IBS of both sexes increased with chronological age, peaked at the third decade of life, and gradually declined thereafter. Males were significantly (p less than 0.001) stronger than females in all age groups, the difference ranging between 16 and 56%. A multiple regression equation was derived to predict IBS, as follows: Male IBS (kgf) = -77.71 - 0.91 age (yrs) + 0.67 height (cm) + 1.50 weight (kg) + 0.24 Quetelet index (R2 = 0.78; SE +/- 16.67 kgf) Female IBS (kgf) = -72.42 - 0.39 age (yrs) + 10.65 height (cm) + 0.08 weight (kg) + 1.04 Quetelet index (R2 = 0.62; SE +/- 10.75 kgf).
ISSN:0259-9147
DOI:10.3109/03790799109166690