The 4 Most Common Attributes of a Quality TreadmillWritten by Aaron Co
With all marketing hype consumers are facing today, it’s quite hard to differentiate a quality treadmill from an inferior treadmill. That’s why I researched on what quality treadmills have that inferior treadmills don’t. This article, The 4 Most Common Attributes of a Quality Treadmill, was result of that research. The traits below are vital to a treadmill’s performance and are things that you’ll always find in a quality treadmill. Continuous Horsepower One of most important attributes of a quality treadmill is its horsepower or HP. There are 2 ways to measure HP of a motor, through “peak duty” or “continuous duty”. Treadmills with a continuous duty horsepower mean that motor can maintain a certain horsepower whole workout. Peak duty horsepower means treadmill may be able to reach that horsepower briefly, but won’t be able to sustain it. Most inferior treadmills try to make their machines look better by listing their peak duty rather than their continuous duty horsepower. Quality treadmills have nothing to hide and would always put their continuous duty horsepower upfront for everyone to see. Powerful Motor When I say power, what I really mean is that motor should be able to pump power with ease throughout whole machine. For example, a 2.5HP continuous duty motor in an entry level model is powerful, but same cannot be said if that motor is in a commercial treadmill, since it would be way too weak to make huge commercial unit function.
| | Whey Protein ImportanceWritten by Hamoon Arbabi
Studies on whey demonstrate it's an even better protein supplement than previously thought. Although whey protein's health benefits have only recently been elucidated, use of whey protein for medicinal purposes has been prescribed since time of Hippocrates. In fact, there are two ancient proverbs from Italian city of Florence that say, "If you want to live a healthy and active life, drink whey," and, "If everyone were raised on whey, doctors would be bankrupt." In previous issues, we've chronicled extensive research showing many potential health benefits of whey protein concentrate. The majority of that research was done in 1980s and early 1990s, and was extremely persuasive. Scientists have continued their research on whey proteins with even more impressive results. What follows is some of more current, interesting and useful research on whey proteins. Whey and Cancer Additional studies have been done on animals regarding cancer-causing chemicals to see what effects whey protein concentrate would have on cancer prevention or treatment. Scientists fed rats various proteins and then subjected them to powerful carcinogen dimethylhydrazine. As with previous research, rats fed whey protein concentrate showed fewer tumors and a reduced pooled area of tumors (tumor mass index). The researchers found whey protein offered "considerable protection to host" over that of other proteins, including soy. 1. Even more exciting, in vivo research on cancer and whey showed whey protein concentrate inhibited growth of breast cancer cells at low concentrations (Baruchel S. and Vaiu G., Anti Cancer Research, 1996). Finally, and most importantly, a fairly recent clinical study with cancer patients showed a regression in some patient's tumors when fed whey protein concentrate at 30 grams per day. 2. Whey and Glutathione This new research using whey protein concentrate led researchers to an amazing discovery regarding relationship between cancerous cells, glutathione (GSH) and whey protein concentrate. It was found that whey protein concentrate selectively depletes cancer cells of their glutathione, thus making them more susceptible to cancer treatments such as radiation and chemotherapy. It has been found that cancer cells and normal cells will respond differently to nutrients and drugs that affect glutathione status. What is most interesting to note is fact that concentration of glutathione in tumor cells is higher than that of normal cells that surround it. This difference in glutathione status between normal cells and cancer cells is believed to be an important factor in cancer cells' resistance to chemotherapy. As researchers put it, "Tumor cell GSH concentration may be among determinants of cytotoxicity [poisonous to cells] of many chemotherapeutic agents and of radiation, and an increase in GSH concentration appears to be at least one of mechanisms of acquired drug resistance to chemotherapy." They further state, "It is well-known that rapid GSH synthesis in tumor cells is associated with high rates of cellular proliferation. Depletion of tumor GSH in vivo decreases rate of cellular proliferation and inhibits cancer growth." The problem is, it's difficult to reduce glutathione sufficiently in tumor cells without placing healthy tissue at risk and putting cancer patient in a worse condition. What is needed is a compound that can selectively deplete cancer cells of their glutathione, while increasing, or at least maintaining, levels of glutathione in healthy cells. This is exactly what whey protein appears to do. In this new research it was found that cancer cells subjected to whey proteins were depleted of their glutathione, and their growth was inhibited, while normal cells had an increase in GSH and increased cellular growth. These effects were not seen with other proteins. Not surprisingly, researchers concluded, "Selective depletion of tumor GSH may in fact render cancer cells more vulnerable to action of chemotherapy and eventually protect normal tissue against deleterious effects of chemotherapy." The exact mechanism by which whey protein achieves this is not fully understood, but it appears that it interferes with normal feedback mechanism and regulation of glutathione in cancer cells. It is known that glutathione production is negatively inhibited by its own synthesis. Being that baseline glutathione levels in cancer cells are higher than that of normal cells, it is probably easier to reach level of negative-feedback inhibition in cancer cells' glutathione levels than in normal cells' glutathione levels. Whey and LDL Cholesterol The positive health benefits of whey protein concentrate does not end with its effects on immunity and cancer prevention and treatment. Whey protein concentrate also was found to be a potent inhibitor of oxidized low density lipoprotein cholesterol. Current research suggests that conversion of LDL to oxidized LDL is trigger that leads to atherogenesis... formation of plaque and lesions associated with atherosclerosis.
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