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Life on holidays: study protocol for a 3-year longitudinal study tracking changes in children's fitness and fatness during the in-school versus summer holiday period.
BMC Public Health
October 2019
Alliance for Research in Exercise, Nutrition and Activity (ARENA), School of Health Sciences, University of South Australia, Adelaide, Australia.
Background: Emerging evidence suggests that children become fatter and less fit over the summer holidays but get leaner and fitter during the in-school period. This could be due to differences in diet and time use between these distinct periods. Few studies have tracked diet and time use across the summer holidays.
View Article and Find Full Text PDFThe relation of fatness to insulin is independent of fitness in 9- but not 15-yr-olds.
Med Sci Sports Exerc
January 2008
Center for Sport and Health Sciences, Iceland University of Education, Laugarvatn, Iceland.
Article Synopsis
- The study investigates how aerobic fitness, body fatness, and fasting insulin levels interact in healthy children aged 9 and 15.
- Findings show significant correlations between higher fatness and increased fasting insulin levels, with fitness influencing these relationships differently across ages.
- Overall, fatness appears to impact fasting insulin more than fitness, particularly in younger children, while fitter children aren't at a disadvantage in insulin levels regardless of fatness.
Ascent rate, age, maximal oxygen uptake, adiposity, and circulating venous bubbles after diving.
J Appl Physiol (1985)
October 2002
Faculté des Sciences du Sport, Luminy, 13009 Marseille, France.
Decompression sickness in diving is recognized as a multifactorial phenomenon, depending on several factors, such as decompression rate and individual susceptibility. The Doppler ultrasonic detection of circulating venous bubbles after diving is considered a useful index for the safety of decompression because of the relationship between bubbles and decompression sickness risk. The aim of this study was to assess the effects of ascent rate, age, maximal oxygen uptake (VO(2 max)), and percent body fat on the production of bubbles after diving.
View Article and Find Full Text PDFIs fatter fitter? Body storage and reproduction in ten populations of the freshwater amphipod Gammarus minus.
Oecologia
February 2000
Department of Biology, Juniata College, Huntingdon, PA 16652, USA e-mail: Fax: +1-814-6413685, , , , , , US.
Relationships between body storage (estimated as fat content and residuals of body mass regressed against body length) and offspring investment [brood mass, brood size (number of embryos per brood) and embryo mass] were examined within and among populations of the amphipod Gammarus minus in ten cold springs in central Pennsylvania, USA. Two major hypotheses and six corollary hypotheses were tested. Total reproductive investment (brood mass and brood size) was usually strongly positively correlated with maternal body length and body storage both within and among populations.
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