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  • 1
    Electronic Resource
    Electronic Resource
    Maximal oxygen uptake in Danish adolescents 16–19 years of age (1987)
    Springer
    European journal of applied physiology 56 (1987), S. 74-82 
    Details
    ISSN: 1439-6327
    Keywords: Maximal oxygen uptake ; Adolescent ; Population study
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A random sample of schoolchildren, 119 boys and 153 girls, was tested in the fall of 1983. The data presented here are anthropometric data (height, weight, fat % and vital capacity) and oxygen uptake directly measured on a bicycle ergometer. The mean height and weight for boys were 179.1 cm and 67.7 kg, and those for girls were 168.0 cm and 59.6 kg. The mean fat content was 9.1% for boys and 19.1% for girls, and their mean vital capacities were 4.91 and 3.61 respectively. The boys had a high maximal oxygen uptake (51.7 ml · kg−1 · min−1) showing no reduction over the age span studied. The girls' maximal oxygen uptake was lower (overall mean 40.0 ml · kg−1 · min−1) with a small reduction from 16 to 19 years of age. When comparing maximal oxygen uptake per kg lean body mass in the two sexes, the boys had 18.4% higher values than the girls, indicating that girls of this age have the lower fitness level. The results of maximal aerobic power measurement in the boys compare well with findings from other investigations using direct measurements, indicating that the fitness of teenage boys is kept at a high level. Comparable data from various countries for girls show different pictures, but it appears that in general they have a low fitness level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00696380
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Maximal voluntary isometric strength in Danish adolescents 16–19 years of age (1987)
    Springer
    European journal of applied physiology 56 (1987), S. 83-89 
    Details
    ISSN: 1439-6327
    Keywords: Isometric strength ; Adolescents ; Population study
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The force in maximal voluntary isometric contraction of elbow flexors, knee extensors, trunk flexors, and trunk extensors was measured in a representative sample of Danish school children 16–19 years of age (128 boys and 165 girls). The 16 year old boys were 177.8 cm in height, with a mean increase of 1.4 cm per year up to 19 years, and they weighed 66.0 kg, with a mean increase of 1.8 kg per year up to age 19. The girls were 168.0 cm in height with no increase up to age 19, and their mean weight was 59.6 kg, which increased by 1.8 kg per year up to age 19 (p〉0.05). The strength in the four muscle groups for boys a girls respectively was 281 N and 182 N for elbow flexors, 574 N and 419 N for knee extensors, 601 N and 404 N for trunk flexors and 664 N and 499 N for trunk extensors. An increase in strength in the elbow and trunk flexors and a decrease in strength in the trunk extensors in relation to values obtained in 1956 was seen, and a difference in strength per kg lean body mass between the boys and the girls was also observed. The estimated strength per unit cross-sectional area of muscle was 38 N · cm−2 in both boys and girls.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00696381
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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