France orders 10 metres between joggers, cyclists

France's sports ministry said Thursday that joggers and cyclists will have to stay at least 10 metres (33 feet) from one another once stay-at-home orders are lifted on May 11.

The measures are designed to prevent a surge of new coronavirus cases.

Running has become a popular way to get a break from the nationwide lockdown in place since mid-March, since short exercise jaunts close to home are among the handful of accepted reasons for being outside.

But officials have been alarmed by scenes of hundreds of runners crowding sunny sidewalks and promenades in recent weeks, leading Paris authorities to even ban day-time running.

French guidelines urge people to maintain at least one metre of social distancing in public, but a preliminary study that went viral early in April suggested this is not enough for runners or cyclists.

The study suggested that air currents generated by fast-moving bodies could spread virus particles projected by infected athletes much further than a person standing still.

The results have not been published in a peer-reviewed journal.

Nevertheless, the sports ministry said it wanted "a minimum distance of 10 metres between two people who are cycling or jogging."

It did not clarify how the measure would be enforced in Paris and other crowded cities, where runners often pass each other closely on sidewalks and footpaths.

For yoga, tennis and other activities, the ministry advised making sure that each participant had four square metres (43 square feet) of personal space.

In any case, no more than 10 people will be allowed to gather for any group activity, and changing rooms will remain off-limits.

Team sports such as football will also remain prohibited, it said.

The ministry reiterated that no professional sports matches will be held before August, even in empty stadiums, and France's football and rugby leagues declared their seasons on Thursday.

The new rules came as France this week unveiled 20 million euros ($21.8 million) in aid to encourage the use of bicycles post-lockdown, which could reduce crowding on public transport and also avoid a surge in car use by people afraid of contagion.

The funds will include a 50-euro subsidy for tune-ups of the estimated 30 million used bikes around the country, the environmental ministry said late Wednesday.

Agence France-Presse

Increasing women’s testosterone level boosts running capacity, new study finds

In the first study of its kind, a new European research has found that higher testosterone levels in females have a significant effect on a woman’s ability to run for longer.

Carried out at Karolinska University Hospital and Swedish School of Sports and Health Sciences, Stockholm, Sweden, the new study looked at 48 physically active and healthy 18- to 35-year-old women and randomly split them into two groups.

One group applied 10 milligrams of testosterone cream to the outer thigh each day for 10 weeks, while the other 10 milligrams of an inactive (placebo) substance.

The women’s hormone levels and body composition—percentage of body fat and lean muscle mass—were measured at the beginning and end of the 10 weeks.

To test how the testosterone cream affects aerobic performance, the researchers measured how long the women could run on a treadmill before reaching the point of exhaustion, and to test the effect on anaerobic performance, which requires short bursts of energy, the women were asked to complete exercises such as squat jumps and standing vertical jumps.

The findings, published in the British Journal of Sports Medicine, showed that the women who used the testosterone cream experienced a rise in their levels of the hormone, with average circulating levels of testosterone increasing from 0.9 nanomoles/liter of blood to 4.3 nanomoles/l among these women.


Perhaps unsurprisingly, the women who took the inactive cream experienced no increase in testosterone levels.

The women who applied the testosterone cream also experienced a significant boost to their capacity to run for longer, with the team finding that running time to exhaustion increased significantly by 21.17 seconds (8.5%) in this group, compared with the women who took the inactive substance.

The testosterone group also experienced increases in muscle mass and leanness, though their body weight did not change.

However, there were no significant changes on any of the anaerobic performance measures, or any significant changes in weight.

It is already known that testosterone levels can impact sports performance. The researchers note that male athletes have, in general, an advantage of 10-15% in comparison with female athletes, which is most likely due to men having, on average, more than 15 times higher circulating testosterone than women.


There has been much discussion recently about whether women with levels of testosterone high enough to fall into the male range, as a result of rare inborn conditions, should be allowed to compete against women with normal levels of the hormone, although evidence is limited on the effect of testosterone on female performance.

However, the International Association of Athletics Federations has said that female athletes with high levels of the hormone must lower their testosterone levels to below 5 nanomoles/liter of blood to be eligible to compete at international level in middle distance races (400 meters to 1 mile), which has been widely criticized and legally challenged.

“Our results are therefore of great importance for the ongoing discussion of whether it is fair to allow athletes with naturally high testosterone to compete in the female category without reducing their hormonal concentration to the female range,” conclude the researchers. IB /ra

source: technology.inquirer.net