Creatine is a substance found in muscle cells that helps your muscles produce energy, particularly while lifting heavy weights or exercising intensely. Your body makes creatine from three amino acids (protein building blocks) called L-arginine, glycine, and L-methionine. You also get creatine when you eat animal protein: meat, poultry or seafood.
If you want to become stronger and faster and have greater endurance, you need to exercise so intensely on one day that you damage your muscles and feel sore on the next day and then train at a reduced intensity for as many days as it takes for your muscles to heal and the soreness to lessen. Then you take your next intense workout.
We can now add sarcopenia, loss of strength and muscle size with aging, to the list of medical problems associated with inflammation. Older people who suffer from sarcopenia are far more likely to have high blood levels of the markers of inflammation such as CRP, SED rate and adiponectin.
A new study shows that exposing mice to cold temperatures increases their body’s production of calorie-burning "brown fat" (Molecular Cell, published online Jan. 8, 2015). You have two types of fat in your body: • white fat that your body stores when you eat too much or exercise too little, and • brown fat...
Cycling is a power sport. The stronger you are, the faster you can go on a bike. Power = [force that your feet apply to the pedals] x [cadence, or how fast you spin your pedals]. Cadence is the number of pedal revolutions per minute (RPMs). Fatigue for a bicycle rider comes primarily from how hard you press on the pedals, not how fast you turn them.
To make muscles stronger, you need to exercise intensely enough to damage the muscles. You can tell that you are damaging muscles when you exercise vigorously enough to feel soreness in those muscles eight to 24 hours later, which is called Delayed Onset Muscle Soreness or DOMS.
Studies in the new field of Epigenetics are showing that lifestyle factors can change the way your body responds to your genes. In one of these studies, researchers were delighted to find a set of identical twins with vastly different lifestyles. They found that a lifetime of exercise is likely to give you the body characteristics of a healthy athlete, while an inactive lifestyle can give you body characteristics associated with increased risk for many diseases.
Chronic foot, leg and knee pain during running can be caused by the foot hitting the ground with excessive force and excessive rolling in of the feet after they hit the ground. These problems can often be alleviated just by taking shorter strides to reduce the force of the foot hitting the ground, and putting special inserts called orthotics in your shoes
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.
Two exciting new studies show that older men and women who have cycled for many years do not have the markers of aging found in non-exercising people. Their muscle size and strength, amount of body fat, levels of hormones such as testosterone, and blood cholesterol levels were close to those of much younger people.
When former NBA player Kent Benson arrived at the University of Indiana he could jump only nine inches off the ground. That's an embarrassing jump for a seven-foot All- American. One year later, he was able to jump three times that high because he had a good coach. How high you can jump is determined...
Committed exercisers should try to continue to exercise during this COVID-19 pandemic, but they should realize that both too much exercise and exercising while sick increase risk for medical complications, such as irregular heartbeats, and death
Advertisements on television claim that you can wrap a special belt around your belly, plug it into an electric outlet, turn on the electricity, and then watch your belly muscles contract to give you rock-hard belly muscles. You can bet that the beautiful people who demonstrate the machines on television didn't get their belly muscles...
"Carbohydrate loading" the night before a big race can harm your performance and your health. More than forty years ago, I reported the case of a marathon runner who had a heart attack after carbohydrate loading in the Journal of the American Medical Association.