Showing posts with label Men's Health. Show all posts
Showing posts with label Men's Health. Show all posts

Sunday, 29 March 2015

Fitness Differences Between the Sexes

 Dorene Internicola



When it comes to fitness, experts say men generally want to be bulkier and women want to be trimmer and everyone wants to do what they are good at.
That’s why as more women tackle brawny boot camps and men seek flexible peace on the yoga mat, crossing traditional gender lines, intelligently, can be a good idea.
“Women want to lose body fat, men want hypertrophy (bulk),” said Geralyn Coopersmith, national director of the Equinox Fitness Training Institute.
There are also hormonal, structural and body composition differences between the sexes, said Coopersmith, who trains the personal trainers for the chain’s fitness centers.
“So if they’re both training for a marathon they’ll train in very similar ways but we’ll look out for different things.”
Women’s wider hips leave them more prone to knee injuries, while men, pound for pound, will always have more lean body tissue.
“Technically the man is more fit in that regard,” she said.
It’s harder for women to tackle extreme workouts, such as Crossfit or P90X, Coopersmith said, but they can do it.
“They’re not going to beat the men but will probably get pretty good at it and get very fit,” she said, adding that too many young, healthy women don’t challenge themselves enough.

Gender Fitness Differences — Spotting the Trends

Dr. Michele Olson, an exercise physiologist with the American College of Sports Medicine said while everyone needs aerobic, strength and flexibility, the activities needed to achieve it can be very different, depending gender and age.
“In the early years women need to focus on bones and men on aerobics,” said Olson, a professor at the Auburn University Montgomery Human Performance Lab, in Alabama.
She added that research shows it’s important for younger women to take on activities with sufficient impact, such as jogging, jumping rope or step aerobics, at least 20 minutes twice a week, to develop good bone density.
“Bone density can fail women in their 40’s,” said Olson, “while men tend to have robust bones until very late in life.”
She added that heart health is especially important for men, who are plagued with heart disease at a younger age. They need to focus on the correct exercises for the heart, including low-impact cardio exercises like bicycling or swimming.
Women at any age should lift weights, she said, adding interval-style training is more efficient in burning the mid-belly fat women tend to store after menopause.
“It doesn’t have to be a boot camp. You can do it on a treadmill by adjusting speed or incline at one-minute intervals,” she explained.
As men age, their lack of flexibility catches up with them, but estrogen has made the tendons of women more elastic.
“Women and men both play to their strengths,” she said. “Even as children, athletes naturally select what they feel they’re good at.”
Connecticut-based fitness instructor Ellen Barrett believes the genders require different fitness formulas.
Even a simple bicep curl might not work for a woman, whose range of motion is generally greater, said Barrett.
Super-intense, military-style workouts and long-distance running are among the activities Barrett feels are made for men, while Pilates and yoga are so much more woman-friendly.
Barrett said when she attends a yoga class with her husband “it’s like a tale of two cities.”
“I feel like I’ve had a massage,” she explained. “My husband has to recover.”

Tuesday, 8 July 2014

How to Combat Computer Eye Strain

  • Dr. Michael Greger
What happens to our eyesight when we sit in front of a computer all day?

How to Combat Computer Eye StrainAs researchers from the SUNY College of Optometry note, the rise in computer screens “has led to an increase in ocular and visual problems, including eye discomfort, blurring of distant objects, eye strain, and asthenopia (visual fatigue).” This has caused so-called “nearwork-induced transient myopia.” That’s when after staring at a computer screen for a while we look out the window and things start out all blurry. Our vision becomes blurred because our poor little ciliary muscles pulling at our lens are locked in this constant state of contraction to keep that near focus. Over time, this may have long-term adverse consequences.

How to Combat Computer Eye Strain

Experts in the field recommend taking 4-12 minute breaks staring out the window every hour.

We can also aid our vision with our diet. A double-blind placebo-controlled crossover study, for example, found a significant improvement in refractive values and eyestrain symptoms when subjects ate black currants compared to a placebo.

However, what passes for currants in the U.S. are usually champagne grape raisins, not actual black currants, which were banned in the U.S. a century ago at the behest of the lumber industry. The lumber industry feared that they might spread a plant disease that affects white pine (which we hardly even harvest any more). Black currants are, however, currently making a comeback (and the ban has been lifted in some states), though any anthocyanin-rich berry might have similar benefits (such as bilberries, blueberries, cranberries, black raspberries and red raspberries).

Foods vs. Supplements

Why bother with whole bilberries or black currants when we could just take powder capsules? Because, as we’ve seen over and over again, when we test supplements, we’re lucky if they actually contain what is listed on the label. Furthermore, even for products containing bilberries, one study found that labeling was often uninformative, misleading, or both, something or which the herbal supplement market is infamous. The largest study to date found that it appears most herbal supplement labels lie.

A Brief History of Bilberries

Bilberries gained notoriety during World War II when it was said that pilots in the British Royal Air Force “were eating bilberry jam to improve their night vision.” It turns out this may have been a story concocted to fool the Germans. The real reason the Brits were able to suddenly target Nazi bombers in the middle of the night before the bombers even made it to the English channel was likely not because of bilberries, but because of a top secret new invention the British needed to keep quiet: radar.

For best results when it comes to computer eye strain, stick to whole berries with blue and red pigments, and don’t forget to give your eyes a break each hour.

For other videos on protecting our vision, check out Greens vs. Glaucoma, where I listed the best foods to help prevent glaucoma; in Dietary Prevention of Age-Related Macular Degeneration I did the same for age-related macular degeneration. I’ve also addressed the Dietary Treatment of Glaucoma.