Sports « Weekly Gravy

A new study is sure to strike a chord with anyone who plays in a high school or college marching band. The researchers report that long, afternoon practices and playing on artificial turf put marching musicians at high risk of heat stroke. “People usually think of football players when they think of students struggling with heat issues, but high school and college marching bands also often practice in the heat of August and early September, and play on the same surfaces while wearing uniforms and carrying heavy equipment,” said study author Dawn Emerson. She is an assistant professor of health, sport and exercise sciences at the University of Kansas in Lawrence. For the study, Emerson’s team measured the core body temperatures of musicians in two unidentified college marching bands during rehearsals and football games over one season. Participants swallowed a capsule with sensors to get the measurements. A core body temperature of more than 104 degrees Fahrenheit signifies heat stroke — the most severe form of exertional heat illness (EHI). It’s a leading cause of death among U.S. high school athletes. Average overall core temperature was significantly higher in one group: 101.1 degrees before activity for Band 2 versus 99.7 degrees for Band 1; and 101.8 degrees after activity for Band 2 versus 100.2 for Band 1. Maximum core temperature was 102.7 degrees in Band… read on >

Cautions about TV viewing are as old as television itself, but how bad is it really? A number of studies cite health risks due to the link between a sedentary lifestyle and the number of hours spent watching the tube. Young adults who watch three or more hours of TV a day and get little exercise have a greater chance of cognitive issues in midlife, according to a 25-year study published in JAMA Psychiatry. The same amount of TV time could also double the risk of early death compared to watching an hour or less each day, according to research published in the Journal of the American Heart Association. People who watch TV for five or more hours a day have more than double the risk of dying from a blood clot in the lungs compared to those who watch 2-1/2 hours a day, according to a study in the journal Circulation. Again, this is likely due to all the sitting involved. What’s the answer? It’s a two-pronged approach. Cut back to one to two hours of TV and increase the amount of moderate-intensity exercise you do to between 60 and 75 minutes every day. According to research published in The Lancet, this won’t completely eliminate the increased risks associated with TV time, but it can certainly lessen them. It also helps to find more… read on >

Next time you’re ready to hit the sofa for an evening of TV, think twice — it just might kill you. Though too much sitting has long been linked to health risks, a new study suggests all sitting isn’t the same — and sitting in front of the TV after dinner for long hours at a stretch is especially unhealthy. In fact, those who did just that increased their risk for heart attack, stroke and early death by 50% compared to those who didn’t, researchers report. “It’s the combination of dinner and sitting on the couch watching TV for hours afterward that we think can be very toxic,” said lead researcher Keith Diaz, an assistant professor of behavioral medicine at Columbia University Vagelos College of Physicians and Surgeons in New York City. Sitting in front of the TV is different from sitting at work, he said. “At work, we get up and move often — we go to a coworker’s desk, we go to the bathroom, to the copy machine, etcetera,” Diaz said. “But when we sit and watch TV, we tend not to move for hours at a time. That type of sitting is the most hazardous type of sitting.” Hours spent in front of the TV after dinner increase blood sugar and cholesterol. And because muscles are inactive, they don’t help clear away… read on >

The biceps, the very visible muscles in the front of the upper arms, are a target in every comprehensive strength-training regimen, but what exercise is the most effective? To answer that question, the American Council on Exercise asked scientists from the University of Wisconsin-La Crosse to evaluate eight popular biceps exercises. Popular Biceps Strength-Training Exercises Barbell curl Cable curl Chin-up Concentration curl EZ curl with wide grip EZ curl with narrow grip Incline curl Preacher curl At the very top of the list for effectiveness is the concentration curl, because it best isolates the biceps. Most of the other popular exercises also target other muscles, such as those in the shoulder called deltoids. But because the upper arm is pressed against the leg in concentration curls, the biceps is engaged the most. To do this curl, sit on a flat bench with a dumbbell in front of you. Legs are apart, knees bent and feet flat on the floor. For the starting position, hold the weight in your right arm, arm extended toward the floor, palm up. Press the back of the upper arm against the top of your inner right thigh. Now, with control, use only your forearm to curl the weight toward your biceps as you contract that muscle. Bring the weight up to shoulder level, leading with the outside of your hand… read on >

(HealthDay News) — Stress fractures are overuse injuries and usually occur in the lower leg. Typically, they are triggered by increasing the amount or intensity of an activity too quickly, says the American Academy of Orthopedic Surgeons. To prevent stress fractures, the AAOS suggests: Set incremental goals for sports and activities. Cross-train, rather than repeat the same exercise daily. Maintain a healthy diet, including vitamin D and calcium. Stop and rest if pain or swelling occurs.

Research points to a very long list of benefits from exercise, from improving your overall health to easing stress and enhancing mental well-being. But a landmark study in the journal Circulation highlights a negative, yet specific, concern. While health factors like obesity and diabetes are known heart attack triggers, data from 12,500 people in 52 countries pointed to two other risk factors to be aware of: exercising at a very high level of physical exertion; and anger or emotional distress. Either can double the risk of a heart attack. And when combined, they’re even more dangerous, tripling the risk. So, while you might take a walk around the block to cool off when you’re angry, it’s not the time to bench press 300 pounds at the gym. Does this mean you should never challenge yourself with strenuous workouts? Not necessarily. For an external trigger such as exercise to bring on a heart attack, there probably needs to be an existing problem, like cholesterol build-up in your arteries, researchers explained. Regular activity is associated with heart benefits, according to the American College of Cardiology. The person who faces a risk from exercise is more likely to be someone out-of-shape who jumps into vigorous exertion suddenly. That’s a reminder that the best approach is to start slow, and increase duration and intensity at a slow yet steady… read on >

Everyone experiences anxious moments now and then. But for those with Generalized Anxiety Disorder (GAD), the worry is frequent and overwhelming, often interfering with everyday activities. Now, a small study suggests that these burdensome feelings can be quelled with a little heart-pumping activity. The study found that just a half hour of vigorous exercise might do the trick. For the study, 35 young adults with suspected but undiagnosed GAD (subclinical GAD) ran on a treadmill for 30 minutes at high intensity, then spent 30 minutes sitting. They completed questionnaires on their feelings of worry, anxiety, energy and fatigue before and after each session. Both men and women emerged less anxious and worried and more energetic after the workout. For women, the improvements were even stronger. Nearly 7 million adults in the United States have GAD, with women more likely to be affected. But only about 40% get treatment for it, and research has focused on alternative therapies. Researchers said their study is the first to show positive effects for young men with subclinical GAD. The findings support previous research about the benefits of exercise for women with GAD. “Several plausible mechanisms have been suggested” to explain the anxiety-easing benefits of exercise, said study lead author Matthew Herring, a lecturer in sport, exercise and performance psychology at the University of Limerick in Ireland. These reasons include… read on >

Getting your upper arms in shape is a worthy ambition in any season, and the triceps are the muscles to target for a sleek look. Toning them can be a challenge, but the “triceps extension” and variations of this key strength training move make up the core of an effective training routine. For the basic triceps extension, lie flat on a mat with knees bent and hip-width apart or on a weight bench with feet flat on the floor in front of you. Hold the ends of a dumbbell or the handles of a weighted ball with both hands. Lift arms straight up to the ceiling. From this position, and without moving the upper arms, bend elbows to bring the weight toward your forehead until arms make a 90-degree angle. With control, straighten arms. Repeat. For the first variation, from the same starting position, hold a dumbbell in each hand. Raise arms straight up to the ceiling, with palms facing away from you. Again, moving only your forearms, bend elbows until upper arms and forearms make a 90-degree angle. With control, straighten arms, but before you lower them again, rotate your wrists so that palms are facing you as you lower your forearms. Straighten arms and continue to reverse the position of your wrists with each rep. For the second variation, from the same starting… read on >

High-intensity interval training (HIIT) is an exercise technique done by alternating short bursts of all-out effort in an aerobic activity with periods done at a very slow pace. HIIT has many benefits, not the least of which is being able to get the results of a regular 30-minute workout with less heavy exertion and making exercise more enjoyable. Mayo Clinic researchers found an even greater plus. There’s nothing like HIIT to stave off the aging process, thanks to changes it creates at the cell level, effects that can’t be achieved with any kind of medicine. What’s more, as positive as the changes were for younger people studied, they were even greater among people over 65. Gauging the level of intensity needed for the HIIT intervals isn’t difficult. A person’s maximum aerobic activity (220 minus your age) can be rated on a scale of 0 to 10. High-intensity intervals are done at an exertion level of 7 or higher, around 80% to 95% of your maximum. (As a comparison, moderate activity is 60% to 70%, and vigorous activity is 70% to 80%.) You can decide on the length of the segments. But, in general, according to the American Council on Exercise (ACE), the high-intensity intervals should last between 30 seconds and 3 minutes. The low-intensity intervals can be anywhere from two to four times as long.… read on >

When you think of effective cardio exercise, the activities most likely to come to mind are aerobics classes, running, swimming and cycling. But racquet sports like tennis may hold even greater benefits, according to research published in the British Journal of Sports Medicine. And, as a bonus, they could also be more fun, making it easier to meet your fitness goals. After reviewing data from 80,000 people, researchers found that participants in racquet sports reduced their risk of early death by 47%. Racquet sports beat out swimming and aerobics, the second and third most-protective exercises, by double digits. Cycling came in fourth. The numbers were even higher for reducing the risk of death from heart disease or stroke, though swimming and aerobics were still beneficial because they work the upper and lower body, which helps train the heart. Also, whatever activity the study participants chose, the more often they exercised, the more their risk of early death dropped. Exercise and Risk of Early Death 47% lower risk of early death with racquet sports 28% lower with swimming 27% lower with aerobics 15% lower with cycling Never picked up a racquet? The U.S. Tennis Association has information to help you get started, including where to find programs in your area. Besides being a great exercise, tennis helps with balance, strength and flexibility, all essential for lifelong… read on >