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63. Raise your leg. kccping the rcst of your body as relaxed as possible. Tense your leg ordy for ten seconds: relax. Rcpeat. using othcr leg.
64. Keeping your body as relaxed as possible, make a fist with one hand and place the othcr hand oyer the fist. Push down with your hand and up with your fist as hard as possible for ten seconds; rclax. Repcat. altcrnating hands.
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