An interesting study showed that after finishing the 26-mile Boston Marathon, runners had changes in the bacteria in their colons that may have helped them to run faster and longer.
I have often recommended that exercisers take a sugared, caffeinated soft drink for a performance boost during prolonged vigorous exercise. I still think this is good advice, but people who are exercising at a casual pace for an extended time may want to restrict their intake of soft drinks
When you contract your skeletal muscles, they squeeze the veins near them to pump extra blood back to your heart. The extra blood flowing back to your heart fills up your heart, which stretches your heart muscle, causing the heart muscle to contract with greater force and pump more blood back your body.
The problem with wearing masks when you exercise outdoors is that they can limit your ability to breathe. This may not be an issue if you are doing casual exercise, but if you are running or cycling vigorously, you will probably find yourself gasping for air.
The most common cause of knee pain in bicycle riders is having the seat set so high that it forces you to fully straighten the knee as the pedal reaches its lowest level. You are never supposed to fully straighten your knee when you do any kind of exercise, particularly cycling or running.
Always try to keep at least a slight bend in your knee when you run or bike. When you run, you are supposed to land on each foot with a partially-bent knee. Otherwise you transmit the shock of your foot hitting the ground directly onto your knees, hips and back. Straightening your knees when you pedal markedly increases risk for knee pain by increasing the force on your joints.
It's normal to sweat more after you finish exercising than you do while you exercise. Your body temperature varies throughout the day, going from around 97 degrees in the early morning to about 99 degrees in the early evening. Exercise raises body temperature considerably.
Have you wondered whether you burn more calories when you run or when you ride a bicycle? Running requires the same amount of energy per mile at any speed, but cycling is slowed so much by wind resistance that the faster you ride, the harder you have to pedal and more energy you use.
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
Sleeping can help to prevent exercise injuries. Healthy U.S. soldiers in training are less likely to suffer exercise-related injuries such as fractures, sprains and muscle strains when they sleep at least eight hours at night.
The American Heart Association has cautioned that, "Exercise, particularly when performed by unfit individuals, can acutely increase the risk of sudden cardiac death and acute myocardial infarction in susceptible people." However, a recent review of 48 research articles found no reduction in lifespan, no matter how much a person exercises
Everyone should try to keep on moving their muscles every day. Sitting around for long periods of time can cause you to become diabetic and increase your risk for a heart attack, and lying in bed for long periods puts you at increased risk for heart failure and premature death
Fifty-two percent of North Americans spend $41 billion a year on over-the-counter food supplements. Athletes and exercisers spend more than 14 percent of the $41 billion, or $5.67 billion, for supplements that are supposed to make them faster or stronger.
The training principles that improve performance in competitive athletes can be used by all exercisers, even those who have never exercised previously, and can help to prevent heart attacks and prolong lives. Exercise helps to prevent heart attacks because exercise makes muscles stronger, including your heart muscle.
Up to 70 percent of North Americans adults will develop diabetes or pre-diabetes, usually from insulin resistance caused by excess fat in the liver and muscles. Exercise helps to empty fat from the liver and muscles, so exercise helps to prevent and treat diabetes.
Scientific American has a fascinating article that explains why you should exercise your brain while you exercise your body. There is evidence that you may be able to make You can make new brain cells as you age by exercising your skeletal muscles and brain at the same time
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 feel discomfort or pain in the skin of your feet while you are exercising, stop exercising immediately and correct the problem. Continuously rubbing your skin can cause very painful blisters that can break and leave you with open painful areas for many weeks.
Mary Cain was unbeatable in high school races. At age 16, she became the youngest athlete ever to represent the U.S at a World Championship track meet, and at age 17, she was the 2014 World Junior Champion in the 3000 meter run.
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.
Researchers reviewed eight studies that used accelerometers to follow 36,383 adults, 40 years of age and older, for six years. They found that exercising regularly, regardless of intensity, was associated with reduced risk for death during the study period, while sitting for more than nine hours a day was associated with increased risk of death.
Research evidence shows that exercise strengthens the heart, prevents and treats heart attacks and strokes, and prolongs lives (Circulation, 2018;137(18):1896-1898). The more frequently people exercise, the less likely they are to die of heart disease (JACC Cardiovasc Imaging, 2017;10:1461-1468), but there is some evidence that a person can increase heart attack risk by exercising...