well i kind of like her HIIT low impac i just started my first week me n my mom were doing the indulation 90 day one i like the leg one too. Im not really burning a lot of calories though on my heart rate monitor so idk if im doing them right lol...whats your favorite one?
its part of building muscle your arms will go down the same thing happened to my mother she did sts mesocylce and she builded a lot of muscle. Just keep doing it and dont eat crazy that will builk you up and your arms wont go down