Wolverhampton Intellectual Repository and E-Theses >
Research Institutes >
Research Institute in Healthcare Science >
Sport, Exercise and Health Research Group >
Hormonal factors in the development of differences in strength between boys and girls during adolescence: a longitudinal study.
this identifier to cite or link
to this item:
|Title: ||Hormonal factors in the development of differences in strength between boys and girls during adolescence: a longitudinal study.|
|Citation: ||Annals of Human Biology, 26(1): 49-62|
|Publisher: ||Taylor & Francis for the Society for the Study of Human Biology|
|Journal: ||Annals of Human Biology|
|Issue Date: ||1999 |
|PubMed ID: ||9974083|
|Additional Links: ||http://www.ingentaconnect.com/content/apl/tahb/1999/00000026/00000001/art00005|
|Abstract: ||The development of elbow flexor (biceps) and knee extensor (quadriceps) strength has been followed in a mixed longitudinal study of 50 boys and 50 girls from the age of 8 to 17 years. Sex differences in strength emerged at the time of peak height velocity and were especially marked for the biceps. Data for individual children were aligned to the time of peak height velocity and associations between strength, height, weight and circulating testosterone were investigated using multi-level modelling. The results show that, for girls, quadriceps strength is proportional to height and weight while for boys there is an additional factor which can be fully attributed to increasing levels of testosterone. Testosterone is important in explaining differences in biceps strength between the sexes but an additional factor is also required. It is suggested that, in addition to a direct effect on muscle, testosterone could have a second indirect action on biceps strength by promoting growth in length of the humerus as part of the general development of the male upper limb girdle.|
|Keywords: ||Muscle Strength|
Insulin-Like Growth Factor I
|Appears in Collections: ||Sport, Exercise and Health Research Group|
Learning and Teaching in Sport, Exercise and Performance
|Files in This Item:|
There are no files associated with this item.
|Related articles on PubMed|
Relationships between finger-length ratios, ghrelin, leptin, IGF axis, and sex steroids in young male and female swimmers.
Jürimäe T, Voracek M, Jürimäe J, Lätt E, Haljaste K, Saar M, Purge P
|See all 80 articles|
All Items in WIRE are protected by copyright, with all rights reserved, unless otherwise indicated.