Sorry, but that advice by Dr. Oz pretty much contradicts all areas of research into resistance training. A proper diet and a proper strength training program (ie. 4-6,8-10,10-12 reps) of weight to a muscle group with a period of 48-72 hours rest is what free weights are for. Muscles are built outside the gym, not inside. I'm pretty disappointed that Dr. Oz would mislead people into thinking that is what weight training is about.
If you just want to use your arms, do some sort of chore every hour and lift a jug of milk or the vacuum.
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