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A study found that endurance exercises, such as running, swimming, cross-country skiing and cycling, would help you age better than resistance exercise, which involves bodybuilding with weights.
Heart Journal, examined the effects of three types of exercises – endurance training, high intensity interval training and resistance training – on the pbadage of cells in the age of the human body.
Researchers at the University of Leipzig in Germany have discovered that endurance intensity training slows or even reverses cellular aging, but not resistance training.
Our DNA is organized into chromosomes in all the cells of our body. At the end of each chromosome is a repetitive sequence of DNA, called telomere, that caps the chromosome and protects its ends from deterioration.
As we get older, telomeres get shorter, which is an important molecular mechanism for cellular aging. eventually leads to cell death when telomeres are no longer able to protect chromosomal DNA
The process of telomere shortening is regulated by several proteins. Among them is the telomerase enzyme, capable of counteracting the process of shortening and even prolonging the length of the telomeres.
Researchers led by Professor Ulrich Laufs of the University of Leipzig recruited 266 young, healthy but previously inactive volunteers, and randomly distributed them in six months of training. endurance, interval training of high intensity, resistance training, or to an unchanged lifestyle.
Randomized participants in all three types of exercise completed three 45-minute sessions per week, or 124 in total.
The researchers badyzed telomere length and telomerase activity in white blood cells in the blood taken from volunteers at the beginning of the study and two to seven days after the last session of the study. 39, exercise, six months later.
"In volunteers who have undergone endurance training and high intensity, increased telomerase activity and telomere length, both of which are important for cellular aging, the ability to regeneration and therefore, healthy aging It is interesting to note that resistance training does not exert these effects, "said Laufs.
Telomerase activity doubled and telomere length was significantly increased in endurance and high intensity training groups compared with resistance and control groups. 19659002] The study identifies a mechanism that allows endurance training – but not resistance training – to improve healthy aging.
"It may be useful to design future studies on this important topic using telomere length as an indicator of" biological age "in the country's future intervention studies," said Laufs.
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