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AS YOU GET OLDER MAKE PHYSICAL ACTIVITY A HABIT
REDUCE THE RISK OF HEART ATTACK WITH EXERCISE There is a beneficial relationship between physical activity, fitness and a low blood lipid profile says the American College of Sports Medicine. The study and also concluded that a steady regimen is necessary. Sudden changes, or starts and stops in an exercise routine won't reduce a high level of fat in the blood.
The team of researchers, led by Tomasz Kostka, Ph.D., and working out of the Centre Hospitalier Lyon-Sud in Lyon, France, analyzed the relationship of cardiorespiratory fitness to lipoprotein (a) and blood lipids in an elderly population. "We knew that physical activity effectively reduces the risk of coronary heart disease," said Kostka. "But the data all came from studies done on young and middle-aged subjects. What we wanted to find out was whether that information translated to the elderly." Coronary heart disease remains a leading cause of death for persons over 65 in Europe and the United States. If physical activity helps prevent the disease, how much exercise, and for how long? Because lipoprotein (a) has been identified as a risk factor when found in high concentrations, and physical activity does affect the overall blood lipid profile in much of the population, the researchers believed they could learn more by conducting similar tests on an older group. |
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Seventy persons aged 65 to 84 were recruited from an independent-living community dwelling in Lyon, France. A group of 52 eligible individuals responded to a questionnaire and were subjected to a skinfold test, treadmill exercise test, and blood lipid analysis. The questionnaire evaluated mean habitual daily energy expenditure, sports activities and the sum of household/gardening/walking activities. The skinfold test measured body composition, while oxygen consumption and blood lipoprotein (a) content were established in the treadmill and blood analysis tests, respectively. Six months later, 38 remaining participants (17 men, 21 women) were assessed with a final evaluation. After assessing the influence of changes in habitual physical activity on blood lipid levels, the researchers concluded that six months of exercise training at 60 percent of maximal heart rate produces no change in the blood lipid profile. They did notice higher lipoprotein (a) levels in female subjects, a condition that had not been observed in younger adults in previous tests. |
To compare, the researchers quoted previous studies that had investigated longer relationships between physical activity and the amount of fat in the blood. Some of those studies suggested that significant changes are obtainable only at a certain level of exercise intensity. Another study revealed that significant increases were shown only after the second year of a home-based exercise program.
"Older folks who are sedentary will benefit from low-intensity exercise training," said Kostka. "But if they are otherwise healthy and have an excess of fat in the blood, more vigorous exercise will be necessary before blood fat is affected."
Kostka also indicated that future studies might pursue the exact exercise intensity and duration where "breakthroughs" into favorable blood lipid profile changes can be expected.
Evidence now shows that your schedule can dictate the timing of your exercise sessions. If lowering triglyceride levels or blood fats is your goal, several short sessions may do the job as well as one long bout.
Head athletic trainer Thomas Probst and assistant athletic trainer Keith Dugger of the Colorado Rockies have been voted Major League Training Staff of the Year by the Professional Baseball Athletic Trainers Society.
Some styles of martial arts may be considered as much of a contact sport as football, for example, the training is very different. Unlike other sports where weightlifting to build muscle mass and strength is very important, success in martial arts is built on strategy, technique, mental discipline, endurance and flexibility.
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A healthy mind in a healthy body by Kaelah Farber. Martial arts and martial sports have made such an important impact on my life. Now those forces within me compel and push me to reach my goals every day.