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Hot Tub Shopping Tips

A hot tub is a wonderful addition to any home. It is a relaxing escape from the stresses and pressures of modern living, and can provide you with hours of therapeutic soaking. Whether you decide to put yours in indoors or outside, there are a number of things to consider when shopping for a new spa.

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How not to strain for cardio fitness gains

Quantity may beat quality when it comes to exercise and heart health. Adults who engage in mild exercise -- such as walking briskly for 12 miles or exercising moderately for 125-200 minutes over the course of a week -- can improve their aerobic fitness significantly and reduce their risk of cardiovascular disease, according to a study published in Chest. The classic exercise regimen has a component of intensity up to 80 percent of someone's maximum for health benefits, Our study demonstrates that you can exercise at an intensity much less than that and still achieve fitness benefits, he notes. People find exercise 'hard' and few people want to exercise at an intensity higher than they have to. Walking briskly for 12 miles a week per week is realistic and does not require anyone to incorporate a hardcore training regimen.

Increasing your mileage or intensity will give you even greater health benefits, Improved Oxygen Consumption A Duke Medical Center research team examined the effects of different exercise training regimens on 133 patients aged 40 to 65 years. All were sedentary, overweight nonsmokers who had abnormal levels of fat in their blood. The participants were divided into four exercise groups: - high-amount/high-intensity (HAHI), the equivalent of jogging 20 miles per week at 65 to 80 percent peak Vo2 (maximum oxygen consumption); - low-amount/high-intensity (LAHI), the equivalent of jogging/walking up an inclined treadmill approximately 12 miles per week at 65 to 80 percent peak Vo2; - low-amount/moderate intensity (LAMI), the equivalent of walking approximately 12 miles per week at 40 to 55 percent peak Vo2; and - a control group of nonexercising patients. All patients underwent cardiopulmonary exercise testing twice at baseline and after seven to nine months of exercise training. All exercise groups significantly improved their absolute and relative peak oxygen consumption and time to exhaustion (TTE) compared to baselines scores. Increasing Intensity May Help Too Although the HAHI group showed the greatest improvements in peak Vo2 overall, increasing exercise intensity from 40 to 55 percent to 65 to 80 percent (at a controlled amount of 12 miles/week) did not significantly improve peak oxygen consumption.

However, increasing the amount of exercise did produce improvements. An increase in exercise amount also demonstrated a graded increase in TTE between groups, although data were not statistically significant. Although our results did point toward amount being more important, it is very likely fitness levels can be improved by increasing either amount or intensity. This is illustrated by the tiered effect the exercise dose had on fitness improvements across our groups. We believe with more people in the study, increasing intensity would also have been significant, he explains. Losing Weight Not Essential Body mass index (BMI) was reduced in the LAHI and HAHI, groups but remained unchanged in the LAMI group.

All exercise groups lost an average of 2.87 pounds after exercise. Baseline characteristics of age, BMI, weight, peak and relative Vo2, and TTE were not different between the groups. A second very important message is that subjects enjoyed fitness benefits in the absence of weight loss.

Many people exercise with the purpose of losing weight. When they do not lose weight, they do not think the exercise is benefiting them and they stop exercising. The truth is, you can improve your cardiovascular fitness and reduce your risk for heart disease by exercising without losing weight. Even if individuals do not lose weight, it is likely that they will lose body fat and increase lean muscle mass while reducing other risk factors, he points out. 12 Miles a Week Adherence to exercise requires motivation and making exercise a priority, the researchers stress. They advise those who are beginning an exercise regimen to start slowly, choose an enjoyable activity, and make exercise a social activity.

Individuals with medical problems should consult a physician before starting an exercise program. If you distill our results down, the public health message is: You only need to walk briskly for 12 miles per week or for approximately 125 to 200 minutes per week to improve your health. This sheds more light on the question, 'What is the minimum amount of exercise I need to do to get a health benefit?. Regular exercise is an important part of a well-balanced lifestyle.

Physicians and other healthcare providers should encourage their patients to engage in regular exercise in order to obtain pulmonary and cardiovascular benefits.

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