Walking is healthy – and can also reduce the risk of cancer, as a current study shows. A protective effect can be determined on the basis of approximately 7000 steps.
This is the result of an American study with around 85,000 British test subjects of 63. Alainina Shreves of the National US Cancer Institute (NCI/Bethesda in the US state of Maryland) and his co-authors from Great Britain and Portugal have analyzed the data of the British Biobank.
Focus on movement in daily life
It was evaluated after the physical activity in the context of daily life, not for sporting activities. The test subjects were 85,394 people aged about 63. They had all worn a gear meter for measuring their physical activities for a week while entering the study. The observation period for cancer occurring was 5.8 years. Until the evaluation, a malicious disease was diagnosed in 2633 people.
Effect of 7000 steps that can be detected
In the context of the analysis it was clearly dependent on the frequency of diseases based on physical activities in daily life. It was about “normal” activities such as shopping, activity in the household, etc. “An effect was detectable from around 7,000 steps. These people were eleven percent less frequent (comment; comment) than with a daily step of 5000. With an increase of 7,000 to 9,000 steps a day, the risk again dropped by 16 percent,” the German medical magazine wrote again.
Plateau effect from 9000 steps
Another important result, according to the scientists in the British Journal of Sports Medicine: “The number of steps back showed a reverse correlation with cancer every day. This dose dependence started to reach a plateau from around 9,000 steps a day.” More movement in daily life after this degree no longer showed an extra preventive effect.
How this works is not yet clear. For example, a reduction of estrogen and growth fact donors in the blood is suspected. Physical activity also lowers insulin levels. This metabolic hormone is also associated with cancer. Less body weight in turn dampens subliminal inflammatory reactions that are suspected of promoting many diseases in the long term, such as cardiovascular disorders due to atherosclerosis.
Source: Krone
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