My question is, all these 30 day challenges have a certain number of exercises you have to do, but none specify if these can be broken up into different sets or have to be done all together. I'm more than happy to split the sit ups into two or three sets, but I want to make sure it doesn't end up being ineffective.
Has anyone done these challenges and knows which way I should do it in order to be the most effective? Any input would help.
Thanks in advance

