Meanwhile, in the other SAR ... Almost half the population of Macau swapped their chairs and sofas for training shoes last week, and took part in International Challenge Day 2008. The annual worldwide event aims to get people physically active by participating in a sport, physical activity or game for 15 continuous minutes. According to figures from the Macau Sports Development Board, 226,759 people, or 42.15 per cent of Macau's 538,000 population, took part on May 28. Fifteen year-old Daisy Chan played basketball with her friends after school and also took part in a running competition. 'I love sport anyway so it was really no big deal from me, but it was good to see some of the kids who don't normally like sport having a go,' Daisy said. 'You were only meant to play for 15 minutes but we kept going for about an hour just to make sure. We also ran at school during the day.' The challenge is organised by the international sport for all movement TAFISA. TAFISA has more than 150 associated organisations in 100 countries. This year's participation rate in Macau was slightly higher than last year, up from 41.5 per cent or 213,072 of 513,427. Oscar Wong took part in the event by playing soccer with his friends. The 14-year-old has played soccer since he was five and said it was the best way to keep fit. 'You have to run all the time to be competitive as a soccer player, so soccer training is enough on its own to keep you fit,' Oscar said. 'I think it's a good idea to get everyone involved in sport because sport makes you feel better about yourself and you have fun too. There were also a lot of older people exercising in the parks which was good.'