Building Endurance: Aerobic Workouts pdf epub mobi txt 电子书下载 2024

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发表于2024-12-18

Building Endurance: Aerobic Workouts epub 下载 mobi 下载 pdf 下载 txt 电子书下载 2024

Building Endurance: Aerobic Workouts pdf epub mobi txt 电子书下载 2024

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Endurance The basic element offitness: building up the heart and lungs O all the elements of fitnessï¼Œ the most crucial is that of cardiovascular endurance -- the sustained ability of the heart and lungs and blood to take oxygen from the air and deliver it througl}out the body. Every cell in the body requires oxygen to fimction. The stronger the heart and the more elastic the lungsï¼Œ the better the cardiovascular system delivers oxygen. And the better the cardiovascular system worksï¼Œ the livelier we feelï¼Œ the sharper our minds are and the greater the likelihood that we will find ourselves with reserves of energy at the end of the day. How is endurance built? Since there is no way to exercise the heart and lungs and blood vessels directlyï¼Œ you must do an exercise that places a demand on the ;ï¼Œardio- vascular system -- an exercise that summons large quantities of o~ - gen into the system. In essenceï¼Œ any form of exercise that lasts more than 90 seconds

Building Endurance: Aerobic Workouts 下载 mobi epub pdf txt 电子书