I do a lot of high intensity interval training with a client 3 days per week. Mostly multi-joint combo moves, but there is a lot of lunging, squating, and tabatas, TRX and spin. Her legs are actually bigger after a month by an inch. Can you suggest another way to get the cardio in besides elipticals, crosstrainers, spin. I have been doing all of this.
I realize this question was asked quite a while ago, but I feel like answering anyway! 🙂 I personally have this issue with my quads….when I do the type of training you are referring to, they get bigger as well and it’s very frustrating. It’s completely genetic. The simple solution, and what works for me: avoid weight use on legs completely and use only body weight for legs (or light ankle weights for floor work). Do lots of repetitions instead. If doing the bike or ellyptical for cardio, aim for speed and use low resistance. Do martial arts type workouts as well.