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A new study indicates that combining aerobics (有氧运动) and weight lifting can help people with Type 2
diabetes (糖尿病) keep their blood sugar levels under control.
Most people probably think of diabetes control in terms of diet or insulin (胰岛素), but Dr. Tim Church
says exercise can play a big role.
"If you look at what diabetes is, it's the failure of the body to manage the blood sugar, and the biggest
consumer of blood sugar in the human body is skeletal (骨骼) muscle," he says." So if you keep skeletal
muscle happy, it's chewing up blood sugar 24 hours a day."
Church says most previous studies looked at the impact on diabetes of one kind of exercise only-typically
aerobic exercise, like walking or bicycling. So he and his colleagues recruited (招募) more than 250 patients
with diabetes and randomly assigned them to an aerobic exercise group, a weightlifting group, a group that did
both kinds of exercise, or a control group that had no organized exercise program.
After nine months, he said, the results were clear.
"And for everything we looked at, but in particu1ar related to hemoglobin (血红蛋白) A1C-that represents
blood sugar control-the group that did both the walking and the resistance training, or weight lifting, did by far
the best."
Church said he expected that the group that did both kinds of exercise would do better, but he was
surprised by how much better they did-not just on controlling blood sugar, but on other relevant measures as
well, like weight. He said different kinds of exercise affect the body differently, especially the big muscles that
are fueled by blood sugar.
"Skeletal muscle is so important for your health, and that's particularly true in individuals with diabetes," he
explained."And aerobic exercise affects skeletal muscle through one set of mechanisms(机制), and the
weight-lifting affects skeletal muscles through a completely different set of mechanisms. So when you
combine aerobic plus the weight-lifting, you're doubling the opportunity for benefit."
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科目: 来源:0108 期末题 题型:完形填空
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As you probably know from the appeals being made for funds to fight cancer and from all the research that is being done 1 this subject- cancer is a great threat to the health and life of mankind. We will only discuss cancer in general 2 , so you can have an idea of what 3 in a body that has cancer. A cancer is a continuous growth in the body which doesn't follow the normal growth 4 . The cells 5 the cancer spread through the body to parts which may be 6 the spot where the cancer begins. 7 it is removed or destroyed the cancer can 8 the death of the person. Cells in the body are growing 9 . As they wear 10 and disappear, their places are 11 by new cells of exactly the same kind. But cancer cells look and act 12 from normal body cells. When these cancer cells divide and increase in 13 , they don't change into the fully grown form and then stop reproducing. 14 they remain young cells and continue to reproduce in number until they are harmful. As the cancer cells grow, they do not 15 in one spot, but separate and move in 16 the normal cells. They may become so 17 that the normal cells in this part of the body cannot continue to work or even remain alive. When the cancer 18 into the blood, it is carried to distant parts of the body. 19 it may grow to form large masses which interfere (干扰) with the activities of the 20 cells. | ||||
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