'Get ready for the perfect prenatal arm workout that targets each muscle in your arm along with targeting that dreaded back fat!' 

Tags: fitness , cardio , home workout , muscle , hiit , crossfit , strength training , arm workout , toned arms , dumbbells , prenatal workout , pregnancy workout , weightlifting , pregnancy , prenatal

SEE ALSO: royal marine , dumbbell workout , pregnancy week by week , gains , ji , sin , royal marines commando , TV , Bench , Aerobics