P90X Ab Ripper or T25 AB Intervals?
Everyone, I've been doing T25 for 2 weeks now but noticed when I did the AB Intervals I did get a good workout but I wasn't NEARLY as sore as when I did the Ab Ripper with P90X...anyone substitute these out? Most of the Alpha phase has AB Intervals with another workout (like P90X did) but I wanted to get other opinions.…