The Power Breathe K3 describes itself as ‘the world’s first intelligent digital breathing trainer’. It is designed to increase breathing muscle strength and endurance to improve fitness and reduce breathlessness during high-intensity activity. Basically, it promises to improve your sporting performance by strengthening the muscles you use to suck in the big ones … and all by spending just a few minutes each day breathing into an automated mouthpiece. More
POWERbreathe K3 for Inspiratory Muscle Training
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POWERbreathe K3 for Inspiratory Muscle Training
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POWERbreathe KHP2 First Look: Crazy Breathing Muscles Trainer And Workout Performance Game-Changer?