Prepare for skiing

If you plan to ski this winter, start getting ready now. The best way to train for skiing is to ski, but snow isn't always available. To prepare for a skiing vacation, you need to strengthen both your heart muscles and your skeletal muscles. You can strengthen your heart for skiing with any exercise that will raise your heart rate for at least 10 minutes, three times a week. However, to prepare your muscles for skiing, you have to use activities that use your upper legs, such as skating or riding a bicycle. The average bicycle rider is far better prepared for skiing than the average runner. Many joggers who can easily run ten miles find that they can't ski very long because their upper leg muscles tire and hurt after just a few minutes of...

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Recurrent sore throats

If you have recurrent throat infections with staph or strep bacteria, check your toothbrush, your nose and your mate. One study showed that beta strep, which causes rheumatic fever, was grown from toothbrushes of 30 percent of children who were infected with that germ. Beta strep can persist in unwashed toothbrushes for 15 days and in washed toothbrushes for 3 days. Another bacteria called staph aureus can persist in the noses of people even after they have taken the appropriate antibiotic. Having staph in your nose also prevents simple cuts from healing.Staph grows so luxuriously in the wet nasal membranes that it is difficult to cure by taking oral antibiotics. You can also be re-infected by a mate who has no symptoms at all. If you suffer...

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Will vinegar help me lose weight?

Vinegar is an excellent preservative and a good household cleaner, but it is not a medicine or a weight-loss drug. Several popular books claim that vinegar prevents cancer and heart disease, lowers high blood pressure and helps you to lose weight, but here is no evidence to support any of these claims. One of the books explains that vinegar helps you to lose weight because oil and vinegar don't mix, so vinegar and your fat won't either. Vinegar is nothing more than a mixture of 95 percent water and around 5 percent acetic acid, made from grapes, apples, rice, potatoes or other fermented plants. It is very low in calories, but the only way vinegar could possibly help you to lose weight is by causing you to eat lots of salads while you cut back...

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Push-Ups: Train to do the most

If you want to be able to do 100 pushups in a row, do not try to do as many pushups as possible every day. You'll probably injure yourself and end up unable to do any pushups at all. Training for competition requires an understanding of the stress-and-recover rule and the interval-sets rule. The best way to improve any athletic skill is to stress your body on one day and then allow enough time for your body to recover before you stress it again. On one day, take a hard workout. On the next morning, your muscles feel sore. Take easy workouts until the soreness disappears and then take a hard workout again.For your hard workouts, you can do far more work by exercising in sets, rather than continuously. If you can do six continuous pushups, you...

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Know when to change sports

If your favorite sport causes chronic pain or an injury that does not heal, you should probably switch to another sport. Two recent studies from the Argentine Tennis Association followed players with knee and shoulder problems (British Journal of Sports Medicine, May 2006). In the first study, men who had anterior cruciate ligament (ACL) tears showed a great drop in their tennis performance. The knee is just two sticks held together by four bands, called ligaments. Two ligaments are located on the outside of the knee and two ligaments cross in the middle of the knee joint. The ACL runs from the bottom of the upper bone of the knee joint forward to the top of the lower bone of the knee joint. It prevents the upper bone of the knee joint from...

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Statins and muscle pain

Some patients with high cholesterol levels are afraid to take statins because off fear of developing side effects such as muscle pain. A study from Scripps Mercy Hospital in San Diego reviews the latest data on side effects of statins (The American Journal of Medicine, May 2006). This review found that statin- induced muscle damage is more common in Asians, people who exercise, have had recent surgery, have kidney, liver or thyroid disease, or have high triglycerides. The incidence of muscle pain and damage from statins is extremely low in non- exercisers, three to ten percent in those who exercise, and very high in competitive athletes. Most athletes refuse to take statin drugs because they train by taking a hard workout that damages their...

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Are any weight loss drugs safe and effective for teenagers?

Researchers from St. Christopher's Hospital for Children in Philadelphia recently reported that metformin, a drug used to treat diabetes, can help obese, non-diabetic teenagers lose weight (Endocrine Society Annual Meeting, June 2006). Many previous studies show that short-term use of metformin can help people lose weight.Metformin prevents the liver from releasing sugar into the bloodstream. When taken before eating, it markedly reduces the rise in blood sugar. A high rise in blood sugar after eating causes the pancreas to release large amounts of insulin which acts on the brain to make you hungry, on the liver to make more fat, and on the fat cells in your belly to fill with fat. This study shows that metformin along with a low-refined-carbohydrate...

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What should I eat after a hard workout?

Eating a protein-rich meal as soon as possible after this hard workout hastens muscle recovery. Intelligently-increased workloads make an athlete stronger, and anything that helps you recover faster allows you to do more work. When you feel the burn during intense exercise, you are damaging your muscle fibers. The pain that you feel 8 to 24 hours after a hard workout is due to muscle damage. It is now fairly well established that your muscles recover faster if you eat protein as soon as possible after a hard workout or competition. You’ll be happy to know that a study from Indiana University in Bloomington shows that chocolate milk helps athletes to recover faster from hard exercise than drinks that replaced only carbohydrates or fluid (International...

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Stand still or keep moving between bursts of hard exercise?

If you compete in sports that require repeated short bursts of very fast running, such as in basketball, soccer, or football, will you recover faster by standing still or by continuing to move at a slower pace? A study from Brooklyn College in New York showed that it doesn’t make any difference (International Journal of Sport Nutrition and Exercise Metabolism, February 2006). Researchers asked fit athletes to perform multiple bouts of exercising to exhaustion. Between the bouts of vigorous exercise, one group spent 12 minutes staying completely still, while the other group continued to exercise at less than 20 percent of their maximum workload. Athletes in both groups showed equal recoveries and performances.However, those who stayed still...

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Is exercise before sleeping harmful?

Many fitness instructors give you bad advice when they tell you not to exercise within three hours of going to sleep. The old argument was that vigorous exercise causes your body to produce large amounts of its own stimulants, adrenalin and noradrenalin, that make your heart beat rapidly, raise body temperature and prevent you from feeling tired. More recent research shows that exercising vigorously before going to bed does not interfere with sleep. We also know that exercise helps to prevent disease, prolong life and make you feel good. So it is better to exercise whenever you can, even if it's just before you go to bed. For help with your exercise program, visit my Fitness and Health Forum and subscribe to my free weekly e-Z...

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If I replace salt after exercise; won't this cause osteoporosis?

Athletes must eat large amounts of foods to take in enough calories to fuel their muscles during exercise. A high salt intake in athletes does not cause osteoporosis because they eat so much food that contains calcium and potassium that the amount of salt they take does not cause blood calcium levels to drop, so calcium does not leach out of bones. As a general rule, taking extra salt causes the body to retain extra fluid, which expands blood volume and increases blood flow to the kidneys to increase loss of calcium in the urine. This lowers blood calcium levels, so calcium has to be taken from bones for replacement. Sodium salt also causes the kidney tubules to lose more calcium. However, potassium blocks the exchange of sodium for calcium...

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Do protein drinks increase speed during competition?

Adding protein to a sports drink does not help athletes cycle faster in a 50-mile time trial, according to a study from McMaster University in Ontario (Medicine and Science in Sports and Exercise, August, 2006). Many studies show that taking in a carbohydrate drink helps improve performances in athletic events lasting more than an hour. Two recent studies showed that adding protein to a carbohydrate drink improves performance even more. However, in these studies, cyclists worked at a fixed rate of effort, rather than using spurts of energy as athletes do in competition.When you compete in an athletic event lasting more than an hour, you need fluids and calories. In events lasting more than three hours, you also need salt. Calories come from...

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Knee cartilage does not grow back

When all the cartilage in your knee is gone, the only effective treatment is to replace the whole knee. Knee replacements are now lasting for twelve to twenty years or more, and most remain pain-free. The ends of bones are soft, so they must be covered with a thick white gristle called cartilage. Once damaged, cartilage can never heal. An affected person spends the rest of his life losing cartilage until the cartilage is completely gone and the knee hurts 24 hours a day. The only effective treatment at that time is to replace the entire knee. However, the artificial knee can become dislodged from the bones and may need to be replaced after several years. The area will be so full of scar tissue that a second surgery is far more difficult than...

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Bleeding gums need attention

One in 10 people suffers from periodontal diseases, characterized by bleeding in the gums when you brush your teeth, loosening of the teeth and damage to the structures that help the teeth stay in place.They are caused most commonly by infections by three Gram-negative bacteria: Porphyromonas gingivalis, Bacteroides forsythus and Actinobacillus actinomycetemcomitans. The body responds to these infections by producing various cytokines (IL-1, IL-6, IL-8, TNF-alpha), inflammatory mediators (PGE2), and matrix metalloproteinases (MMP-2, MMP-3, MMP-8, MMP-9). Viruses, such as cytomegalovirus and Epstein-Barr virus) can also cause periodontitis. Conventional treatments for periodontitis aim to eliminate bacterial plaque by scrubbing, cleaning and...

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Belly fat is worse than hip fat

Storing fat primarily in your belly increases your chances of suffering heart attacks and diabetes.When you take in more calories than your body needs, your liver turns them into fat. Fat cells in your belly are different from those in your hips. The blood that flows from belly fat goes directly to your liver, whereas the blood that flows from your hips goes into your general circulation. The livers of those who store fat in their bellies are blocked from removing insulin by the extra fat and therefore do not remove insulin from the bloodstream as effectively as the livers of those who store fat in their hips and have less fat in their livers.People who store fat primarily in their bellies are called apples, while those who store fat primarily...

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