The biceps brachii and triceps brachii are the muscles of your upper arm. The biceps muscle is located on the front of your upper arm and is composed of two heads. The triceps makes up the back of your arm and is made up of three heads.
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Starting a weight loss program, or introducing exercise into your daily routine takes energy and may leave you feeling more tired. Your diet, the amount of water you consume and the amount of sleep you get per day also factor into how energetic or sluggish you feel.
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Exercise causes an increase in cardiac output. This increase in cardiac output is necessitated by the active muscles' need for oxygenated blood, and lots of it. For large amounts of blood to be circulated to the active tissue, an equally large amount of blood must be returned.
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Muscle "toning" is a bit of a misnomer. Muscle tone refers to the state of tension in your muscles that contributes to your ability to maintain proper posture and coordination. Exercises that claim to tone your muscles really aim to increase the definition of your muscles.
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Sauna suits and other similar getups have become popular in recent years. While they tout quick results with minimal effort, weight-loss methods such as these pose serious health risks. Weight loss experienced while wearing a trash bag or sauna suit can be attributed to losses in body water rather than fat.
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Your muscles are made up of two different types of muscle fibers: fast-twitch and slow-twitch. Fast-twitch muscles are associated with activities that require short, powerful bursts of activity. Prolonged endurance type of activities is most closely associated with slow-twitch muscle fibers.
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Stretching requires temporary lengthening of your muscle fibers. It is best to partake in flexibility training after a light warmup; this allows increased blood flow to the muscles which in turn increases mobility.
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Proper breathing during weight lifting is vital, not only for your performance, but also for your health. Breathing ensures that the blood circulating to your working muscles is oxygenated and that waste products are removed.
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