Ickihun - I have posted about this a lot in the past, but when I heard the researcher speak, then had a conversation with his later, I was very struck by the findings of a relatively recent study (2015, but ongoing) at Leicester by Dr Joe Henson
https://www2.le.ac.uk/offices/press...ber/standing-up-helps-prevent-type-2-diabetes
More details here:
http://bmjopen.bmj.com/content/bmjopen/7/1/e014267.full.pdf
In the briefest terms, his team found that standing for 5 minutes ever hour significantly reduced blood sugars and improved insulin levels in overweight/obese patients; particularly women. Whilst he wholeheartedly embraces the 30 minutes, 5 days a week tenet, he feels that the 5 minute standing can be a linchpin, with anything else on top being a bonus, particularly for those whose mobility is reduced/impaired. The big impact is gained by utilising the large muscle groups required to actually stand up.
Exercise doesn't have to be complicated or horribly exerting to be effective.