Taking HDL in stride.Taking HDL (Hardware Description Language) A language used to describe the functions of an electronic circuit for documentation, simulation or logic synthesis (or all three). Although many proprietary HDLs have been developed, Verilog and VHDL are the major standards. in stride A brisk, 45-minute walk "may be sufficient to evoke significant, temporary elevations in serum high-density lipoprotein high-density lipoprotein n. Abbr. HDL A lipoprotein that contains relatively small amounts of cholesterol and triglycerides and is associated with a decreased risk of atherosclerosis and coronary artery disease. [HDL] cholesterol in women," report researchers at Loma Linda University Founded in 1905, Loma Linda University (LLU) is a private, Christian, coeducational, health sciences university located in Southern California 60 miles east of Los Angeles close to San Bernardino and near beaches, mountains, and the desert. in Crestline, Calif. HDL is believed to help remove cholesterol from the bloodstream, where it might otherwise contribute to artery-clogging plaque. Several studies have indicated that exercise -- especially prolonged, intense exercise -- can raise HDL cholesterol HDL cholesterol n. See high-density lipoprotein. HDL Cholesterol About one-third or one-fourth of all cholesterol is high-density lipoprotein cholesterol. in both men and women. However, this is the first indication that moderate walking can achieve similar changes, says study leader Robert D. Lee. His team monitored the effects of exercise on serum lipid serum lipid Any major lipid in the circulation–total cholesterol, HDL, LDL, TGs. See Cholesterol, Triglyceride. levels in 12 healthy women in their mid- to late 30s whose weights averaged about 160 pounds. Exercise sessions began at 7:15 a.m. on each of two successive Sundays. On the first day, half the women exercised on treadmills for 45 minutes at a pace of about 4.6 miles per hour while the others rested quietly. The next week, the two groups switched regimes. The researchers took blood samples five times between 7 a.m. and 1 p.m. o each test day, then again at 7 the next morning. The exercise fostered an apparent 6.2 percent rise in HDL cholesterol, lasting about 90 minutes. Lee says the increase primarily reflects a highly significant 11.6 percent increase in one subfraction known as HDL. |
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