My first attempt at this challenge I did 9 sets in 2 minutes... I was surprised how hard it was - by set 4 my thighs were burning - by set 7 my calves were hurting too.....
Im going to try and repeat this challenge a few times throughout the day - see if I can improve on it.
As I lost weight 4 times, due to my experience, the first 10 kilos should not be accompagnied by sport - otherwise you burn calories and you need to get them back. They say as well that if your BMI is less than 25 then sport could be an option, 'cause we are talking about several kilos loss, but for bigger thing we should be careful. After 10 kilo training should be done gradually - to start from "gym" till more calory-burning sport.
Before I started my training after 10 kilos loss - when you really feel you are lighter and for ex. push-ups are easier. But - all people are different.
Sorry - I need 3 more kilos to lose before I could join you!
I dont consider a 2 minute challenge as being sport....but thats okay - we all have to do what we think is right for us.
Hope you are having a good day :) x