Word: loss
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...want to single out iPods. Any personal listening device out there has the potential to be used in a way that will cause hearing loss. We've conducted studies of a few MP3 players and found very similar results across the MP3 manufacturers. Some in-the-ear earphones are capable of providing higher sound levels than some over-the-ear earphones. That said, studies we've done on behavior show that the type of earphones has almost nothing to do with the level at which people set their headphones. It's all dictated by the level of background noise...
...rule of thumb goes, the figures we got in our studies were that people using that standard earbud could listen at about 80% of maximum volume for 90 minutes per day or less without increasing their risk for noise-induced hearing loss. But the louder the volume, the shorter your duration should be. At maximum volume, you should listen for only about 5 minutes...
Obesity experts agree that daily exercise is essential for good health, but whether it can successfully lead to long-term weight loss is a question of much debate. What has become increasingly clear, however, is that the conventionally accepted advice - 30 minutes of moderate-intensity activity most days of the week - is probably insufficient to spur any real change in a person's body weight. A study published July 28 in the Archives of Internal Medicine adds to the burgeoning scientific consensus: when it comes to exercise for weight loss, more is better. It suggests that obese people would have...
...study, led by John Jakicic at the Physical Activity and Weight Management Research Center at the University of Pittsburgh, followed nearly 200 overweight or obese women ages 21 to 45 through a two-year weight-loss program. The women were given free treadmills to use at home, regular group meetings and telephone pep talks to help keep them on track. Participants were also asked to restrict their food intake to between 1,200 and 1,500 calories per day, and were randomized to one of four physical activity intervention groups based on energy expenditure (either 1,000 calories...
Jakicic and his colleagues originally designed their study to measure whether weight loss could really be achieved and maintained through moderate-intensity exercise, akin to "walking when you're late for a meeting," he says, or whether it was preferable to engage in shorter bursts of more vigorous-intensity activity, "like, when you're late for the bus, chasing it down." The problem was that not enough of the women stuck with their assigned exercise categories for the researchers to gather enough meaningful data. Within a few months, most of the participants had resorted to exercising as much as they...