As long as you follow a weight program that benefits power as opposed to hypertrophy, you have nothing to worry about. Lifting weights is excellent for your muscles, as well as your skeletal system. I would seriously advise against phasing them out. There is no reason one can't lift weights and train in martial arts. If Bruce Lee was an advocate for weight training in conjunction with martial arts... that's good enough for me.
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 Bad Mother Fucker
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