Obese adolescents with low physical fitness have a greater risk of having an early retirement due to a disabling illness, according to an international study led by the University of Granada (UGR) and the Karolinska Institute in Sweden.
The researchers, who have published their findings in the scientific journal 'Annals of Internal Medicine', made a follow up to more than one million adolescents males from Sweden during a mean period of 30 years, also analyzing the "combined effect between a low aerobic capacity and a high body mass index". The results have shown that both are risk factors for early retirement due to a "chronic or severe disease", such as psychiatric, cardiovascular, musculoskeletal or nervous system. On the other side of the scale, adolescents with less risk of having an early retirement for these reasons were those in good physical shape and with "normo-peso".
The professor of the Department of Physical Education and Sports in the Faculty of Sports of the UGR and co-author of the work Francisco Bartolomé Ortega said that "these findings have important implications for public health, since they show that maintaining a good physical condition, especially aerobic capacity, not only has a great impact on health, but also has a social and economic impact. " "This is especially relevant in Spain, one of the countries with the highest life expectancy in the world and, therefore, one of the countries facing and facing the difficult challenge of an aging population," said Ortega.
Of all the diseases that led to the granting of an early retirement, psychiatric diseases were the most frequent. Thus, "one of the most novel and striking findings of this study is that the risk of a person with a very low aerobic capacity of having a pension due to psychiatric illness is greater than that of a woman with morbid obesity type III", has indicated Pontus Henriksson, first author of this work.
Another important finding has been that those people who had obesity, but maintained a moderate or high level of aerobic capacity (the so-called "fat but fit" paradox), "had a lower risk of having a psychiatric illness leading to an early retirement than those people who had a normal weight (body mass index between 18.5 and 24.9 kg / m2), but had a low aerobic capacity ".
One of the main limitations of the study is that it was performed only in men, so it is not known if the conclusions of the study are directly extrapolated to women, although there are other studies that have observed that the predictive value of aerobic capacity in the future disease it is consistent in both sexes.