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Showing posts with label fitness. Show all posts
Showing posts with label fitness. Show all posts

Monday, March 17, 2008

Using Orlistat (Xenical) & Meridia for weight loss

Using Orlistat (Xenical) & Meridia for weight loss

On May 24, 1999, a new diet drug that reduces fat absorption finally won approval from the Federal Drug Administration. It was only the second diet drug (after sibutramine) to receive FDA approval since 1997, when the administration banned the popular fen-phen combination after it was linked to several heart-related deaths. Orlistat, sold under the brand name Xenical, is the first of a new class of drugs called lipase inhibitors. Xenical decreases absorption of dietary fat in the gastrointestinal tract. This would indicate that unlike the stimulants, it would not be an optimal choice for a ketogenic diet.

Xenical targets the absorption of fat in your body rather than suppressing your appetite. It is useful for long term use and has been shown to be effective for 1-2 years. Dietary fats are inhibited from being absorbed and this allows about 30% of the fat eaten in the meal to pass through the gut undigested. This helps you to reduce and maintain your weight, as well as to minimize any weight regain. I personally use Xenical on occasions where I have overindulged and want to minimize the "damage." One good thing about Xenical, is that it can be taken one hour before or up to two hours after a meal and is still effective.

The drug, trade-named Xenical, was tested over seven years on more than 4,000 patients and on average, 57 percent of patients treated with Xenical and 31 percent of placebo-treated patients lost at least 5 percent of their body weight. All patients in the studies received nutritional counseling as well. In January, the results of a two-year study on the effectiveness of Xenical were released in the Journal of the American Medical Association. The study, funded by the drug's manufacturer, found Xenical helped patients lose weight, but only about seven pounds more after two years than the patients who took a dummy pill.

The JAMA study also showed Xenical was associated with a slight reduction in cholesterol, blood pressure and glucose - all beneficial side effects. For those taking the drug, health authorities recommend a nutritionally balanced diet with no more than 30 percent of calories from fat. Xenical reduces absorption of some fat-soluble vitamins such as A, D, E, K and beta-carotene, so users of the drug are advised to take dietary supplements.

Sibutramine hydrochloride monohydrate, brand name Meridia, is an FDA approved oral prescription medication used for the management of obesity and maintenance of weight loss and is known to work best when used in conjunction with a reduced-calorie diet and increased physical activity. Meridia works by affecting natural chemicals in the brain involved in regulating the appetite and allows them to act longer.

The appetite control center in the brain is what is believed to regulate the amount of food eaten through feelings of hunger and fullness. Unlike many other appetite suppressant drugs, Meridia is not a releasing agent. It does not get inside the cells to boost the release of neurotransmitters, such as serotonin. Instead, as an uptake inhibitor, Meridia works outside the cells to stop these neurotransmitters from being reabsorbed and thereby allowing appetite control to last longer.

In clinical trials of 6,000 individuals, Meridia produced clinically and statistically significant weight loss results. Meridia was studied among men and women, ages 18 to 65, and on average, patients achieved 5-10% reduction of baseline weight. If appetite control is necessary while on a ketogenic diet this drug might be a good addition. Most side effects associated with Meridia are mild and temporary.
For much more information on these and many other diet drugs and supplements, please feel free to use the Internet and its many available resources.

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Sunday, March 16, 2008

A Fitness Routine for Six Pak Abs

A Fitness Routine for Six Pak Abs

The goal of six pack abs mainly depends upon losing weight by completing exercises that focus on the muscles in the abdominal area. There are literally dozens of such exercises including many that are meant for other major muscle groups, but that can be modified to include a workout for your abdominal muscles. Here are just a few of the major abdominal emphasis exercises.

CRUNCHES

Crunches are done by lying on the floor either on a mat or not, with your arms crossed in front of your chest. Many people do crunches with the hands behind the head, but this can create lower back problems because of the pull on the head and neck. A slightly different position has the finger tips placed behind the ears, rather than crossed on the chest. It is important not to pull on the neck or on the ears for assistance in rising off the floor. Instead, suck the abdomen back toward the spine and inhale through the nose at the same time. Raise the shoulders toward the knees using only the muscles in the abdomen. The entire back should not be lifted from the floor, as this is likely to create back strain. No additional benefit to the abdomen is gained by raising the entire torso. The key part of the crunch is the initial flexing of the abdominal muscles as the shoulders are lifted off the floor. As the shoulders clear the floor, exhale through your mouth. Complete the exhalation with a gasp to expel the last of the air from the lungs as your shoulders stay clear of the floor. Lower the shoulders back to the point where the shoulder blade touches the ground while inhaling. It is important to maintain the proper breathing control and muscle flexing to get maximum benefit from crunches.

SIT UPS

Once again start in a position on the floor with your feet flat and your knees bent. The fingers should be placed behind the ears, or you can cross your arms on your chest. Slowly raise the entire back off the floor while inhaling deeply and exhale as you reverse the move. This exercise can be made more challenging in several ways. For instance, you can do sit ups from an incline with your head lower than your lower body. You can then add weights on the chest to lift while you are sitting up. Weights can become heavier on an incline bench. The next difficult step can be attained by holding the feet off the ground while doing sit ups or making a bicycle peddling motion while doing sit ups with your legs. These exercises may not be easy, but are very beneficial to the abdominal area.

LEG LIFTS

Leg lifts begin with the legs straight and the hands at your sides while lying on the floor. Lift both legs up at the same time without bending the knees until the legs are at a ninety degree angle or a close as possible. Not everyone is flexible enough to reach the ninety degree angle. Lower the legs as close as possible to the floor without actually touching and repeat several times. Increase the challenge of this exercise by adding weights to the legs while lifting them. Another challenging exercise for improving definition and musculature in the abdomen is to hang from a pull up bar while lifting both legs to a ninety-degree position. As with most other exercises, try to stay conscious of breathing while slowly doing the routines.

JACKKNIFE SIT UPS

This exercise begins by lying flat on the floor with the hands at your sides in order to provide better balance. At the same time you raise your knees, bring your torso up slowly till the face and knees meet. Return slowly to the original position while in full control of the movement. The jackknife name comes from the natural tendency of the legs to bend at the knee with the feet dropping to the hips presenting the shape of a jackknife. The difficulty level of this position can be increased by holding a weight between the feet while performing the sit ups.

V UPS

This exercise begins with you on your back on the floor with the arms extended over your head. Bring both legs and torso up at the same time without bending the knees or the arms. Keep the pace slow and steady and reach for your feet with your extended hands at the top of the arc. If possible, try to touch your feet, but this move can be tricky until your level of flexibility increases. As with other exercises, adding weight between the feet increases the difficulty level.

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About Author:
Megan Hazel is a freelance writer who writes about health and fitness topics, similar to what consumers read in Fitness Magazine