The experiment Sports scientist Peter Krustrup and his colleagues from the University of Copenhagen, the Copenhagen University Hospital and Bispebjerg Hospital have followed a soccer team consisting of 14 untrained men aged 20 to 40 years.
For a period of 3 months, the players have been subjected to a number of tests such as fitness ratings, total mass of muscles, percentage of fat, blood pressure, insulin sensitivity and balance.
Surprising results - 2-3 weekly rounds of soccer practise, of the duration of app. 1 hour, released massive health and training benefits. Their percentage of fat went down, the total mass of muscle went up, their blood pressure fell and their fitness ratings improved significantly. Everything we tested improved, says Peter Krustrup.
In parallel with the soccer-experiment, the research group did the same tests on a group of joggers as well as on a passive control group. The joggers also trained 2-3 times a week, but their efforts showed smaller effect than that of the soccer players.
- It is healthy to run long distances in a moderate speed, but the results show that soccer practise is better in a number of ways. The improvement in fitness rating and the increase in total muscle mass were greater in the soccer players, and during the last 8 weeks of the experiment, only the soccer-players showed any improvement, Peter Krustrup says.
After 12 weeks, the soccer players had lost 3.5 kilos of fat and gained more than 2 kilos of extra muscle mass, whereas the joggers had lost 2 kilos of fat and showed no change in total muscle mass. Both groups showed significant improvements in blood pressure, insulin sensitivity and balance.
The sports scientist believes that it is the shifts between walking, running and sprinting that causes the soccer players to experience better health improvements.
- I think that is part of the secret. Soccer is an all-round form of p
|Contact: Peter Krustruo|
University of Copenhagen