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The POWERbreathe® K-Series uses electronic variable threshold resistance training to provide a tapered load that will match the contraction curve of
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POWERbreatheUK - Respiratory Muscle Training on X: POWERbreathe K3 is a hand held, electronic #inspiratorymuscletraining device that offers you an advanced level of #breathingtraining, without any software to deal with. 🔗 #IMT #