Byrdband Stretching Strap combining isotonic, isometric, and prolong stretching for any level of flexibility. Multiple-position hand and foot grips allow for deep, gradual stretching of major muscle groups.
Exhale on the contraction (the muscle engaging part of the exercise) phase of the repetition. Then inhale on the release phase. Rhythmic and regular breathing will help you achieve the results you are after. Most importantly, do not hold your breath.