I live in an extremely polluted city in China and therefore need to exercise indoors. Int he past I've always trained as a distance runner, but running outdoors here is just not that wise due to pollution and traffic concerns, so I would like to develop a fitness routine I can do indoors when I can't make it to the gym. I would ideally like to combine strength training and cardio and use no or minimal equipment. Also since I'm not running much anymore I'd prefer to build some bulk rather than stay lean like I usually am. Tall order I know but any routine suggestions would be greatly appreciated! Cheers