Power napping for an hour can help you to learn, remember and interpret more efficiently. When I was in high school, I found that I could study best immediately after awakening from at least a 45-minute nap. Only then could I read, study and memorize efficiently.
When you get a side stitch, stop running and press your hand deep into your liver to raise it up toward your diaphragm. At the same time, purse your lips tightly and blow out. Pushing the liver up stops stretching the ligaments. Breathing against pursed lips retards fully emptying your lungs and doesn't let your diaphragm rise too high.
You don't need special sports drinks or power bars. Even the most elite athletes can get the nutrients they need from ordinary foods, water and salt. Healthy and fit people usually don't need to drink or eat when they exercise at a casual pace for less than two hours.
An important article in the May 19, 2017 New York Times discusses the latest accusations that some of America's top athletes are using supplements, both legal and illegal, in the hope that they will improve athletic performance. I will present a brief review of some of the supplements that the accused U.S. athletes are taking and comment on their effectiveness or worthlessness, side effects and potential dangers to their health.
Don't believe that you can gain the benefits of exercise without exercising. Many products are promoted to give people bigger muscles and make them better athletes, as well as to help them lose weight and prevent diabetes and heart attacks. They are sold to unsuspecting consumers without needing prescriptions. These products are not approved by the Food and Drug Administration and are likely to be ineffective or even harmful.
A study of elite race walkers shows that a low-carbohydrate, high-fat diet will slow their race times and training. Your muscles burn primarily fat and carbohydrates for energy. You have enough fat stored in your body to exercise for many days. However, you can store only 1600-2000 calories worth of sugar (carbohydrate) in your muscles and liver, and will start to run out of your meager supply of sugar after 70 minutes of intense exercise.
What you eat before and during a major competition can affect your performance enough to give you an edge over your peers. The days of "carbohydrate loading" are gone, but now athletes are being lured to try the LCHF fad -- a low-carbohydrate, high-fat diet.
In a review of 37 studies of men and women over 60, researchers found that a proper exercise program enlarged and strengthened the muscles in 93 percent of the participants (Osteoporosis International, March 1, 2017).
You can improve athletic performance at any age with proper training, even if you are over 100 years old. Traditional feeling among scientists is that aging is progressive and inevitable, and that your genetic programming causes you to age no matter what you do. This paper shows that physical training can reverse established markers of aging.
There is no data anywhere to show that mild dehydration affects health or athletic performance. Fit humans can tolerate significant fluid loss before their performance suffers, and most cases of muscle cramps are not caused by dehydration or salt loss.
On January 4, 2017, 105-year-old Robert Marchand rode his bicycle 14.01 miles to set the world record for his age for the one-hour ride. He rode 92 laps at the Velodrome National near Paris and as he completed his ride, the fans gave him a standing ovation, chanting "Robert, Robert" while dozens of TV crews and cameramen captured the moment.
A researcher posing as a 15-year-old football player called 244 health food stores across the United States and asked if they would sell him protein supplements to give him larger muscles. More than two-thirds of sales attendants at the health food stores recommended that he buy the protein supplement, creatine.
If you don't exercise regularly and vigorously, expect to lose a significant amount of muscle strength as you age, and expect that loss of strength to reduce the quality of your life. A 15-year follow-up study showed that older people who lift weights at least twice a week had a 46 percent lower death...
Countless studies have shown that exercise helps to prevent heart attacks, but some researchers have found scarring in heart muscle and increased plaques in the heart arteries of men who have run many marathons and triathlons, resulting in news headlines warning of "too much exercise."
A new study suggests that it is the level of fitness, not time spent sitting, that predicts susceptibility to disease and longevity (Mayo Clinic Proceedings, published online October 18, 2016). Heart-lung fitness is the ability of the heart and lungs to provide oxygenated blood to contracting muscles for prolonged periods.
A study from New Zealand shows that walking 10 minutes after meals lowers high blood sugar by more than 22 percent in diabetics, which is more effective than 30 minutes of exercise done once a day. This agrees with other studies that show that exercising after meals helps to treat and prevent diabetes.
Most bicycle shops are now selling motor-driven bicycles, which can be an ideal solution for a person who is out of shape or just not strong enough to ride a regular bike. Motor-driven stationary bicycles make it possible for just about anyone to gain the benefits of an exercise program, even those with severe disabilities.
When Michael Phelps won a gold medal in the 4 x 100 meter freestyle relay at the Rio Olympics, he was covered with red circles on his back and shoulders from cupping. Many of the U.S. swimmers and gymnasts at the Olympics are using cupping, along with massage, saunas, ice baths and compression garments, to help them recover faster after a race or a hard training session.
Taking drugs that can harm you gives athletes a major unfair advantage over other athletes who do not take drugs. Many athletes at the highest level of sports are taking drugs that can harm them and this practice is extremely unlikely to diminish in the future.
1. People need to learn a correct range of motion for each exercise that is within their capability and practice that with lighter resistance. 2. There is not a lot of convincing data on repetition duration, but what there is including work we have done here, suggests for each exercise taking about three seconds for the concentric part of the rep, and three seconds for the eccentric part.
A study from the University of Copenhagen shows that wearing an immobilizing knee brace for just two weeks caused men in their 20s to lose 22 to 34 percent of their leg muscle strength, while men in their 60s lost 20 to 26 percent.
If you want to make a muscle stronger, you have to exercise it intensely enough to damage the muscle fibers and when they heal, they will be stronger than they were. You can tell you are causing muscle damage because of the burning you will feel during exercise and the soreness in that muscle you feel four to eight hours later.
A new study from France shows that night-time fasting after intense workouts on alternate days helps athletes exercise longer and faster. The test group ate a low-carbohydrate dinner after their intense afternoon workout and then fasted for 13 hours before their morning recovery workout, then ate larger amounts of carbohydrates after their recovery workouts. The control group ate their meals as they wished, with no fasting requirement.
Ever since we got our first tandem trike and installed the electric motor, we have been looking for someone who would build us a custom trike. Three months ago we met the makers of Ti-Trikes at a bike show and were impressed with their all-titanium single trikes. They had never built a tandem trike but agreed to do one for us, incorporating their many design innovations as well as our specifications. They brought us our new tandem trike two weeks ago, and we are delighted.
The majority of cold weather deaths are from its effects on the heart and lungs to cause heart attacks or pneumonia. The major causes of sudden death in cold weather are elevated blood pressure and increased clotting. High blood pressure damages arteries to cause heart attacks and strokes. If you have blood vessel disease, heart disease or lung disease, try to stay out of the cold.