Breathing is often the most overlooked and least understood component of weight training. If you’re a competitive lifter, you probably already know that your breathing can either make you or break you come contest time. We’re not suggesting that you’re a competitive or powerlifter, but we also don’t suggest inhaling and exhaling with the gusto of a Lamaze student. Relaxed breathing while exercising is the best technique. Don’t hold your breath either.
Lifting weights temporarily causes your blood pressure to shoot up, which normally isn’t a problem. But when you hold your breath, your blood pressure rises even higher — and then suddenly comes crashing down. Holding your breath creates intra-thoracic pressure — pressure in the chest cavity —that stops the circulation of blood from your muscles, but can increase blood pressure. When you relax, the muscle relaxes, the blood begins to flow again, and your blood pressure drops. This drastic drop may cause you to pass out and drop your weight. And if you have a heart condition, you could be in serious jeopardy.
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