Teens vs parents: who's fitter, taller, fatter?

A unique study pits the two generations head to head - or gut to gut

They weigh more, are taller but nowhere near as fit as their parents were at 15, according to a unique study that has assessed two generations using the same tests.

Girls are, on average, 8kg heavier and 3mm taller than their mums at the same age, while boys weigh 11kg more than their dads and are 4mm taller.

While the kilos have gone up, aerobic fitness has declined among today's 15-year-olds, researchers at New Zealand’s University of Otago have found.

They compared the weight, height, BMI and fitness of New Zealanders at the age of 15 across two generations using data from the Dunedin Study, and its offspring dataset, the Next Generation Study.  

The Dunedin Study is a longitudinal investigation of nearly 1000 children born in Dunedin in 1972. They have been assessed at regular intervals, including at the age of 15 in 1986.

Researchers compared the 1986 information with data

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