Posts Tagged ‘ fitness ’

Moms: Your Fitness Level Will Impact Your Kids’

Wednesday, July 23rd, 2014

Moms who lead active lifestyles and get regular physical exercise tend to have children who are also physically active, according to a new study conducted by British researchers.  Importantly, the study could not definitively conclude that the correlation only went into the mother-to-child direction–it was also possible that more active kids demanded more physical involvement (also known as baby-chasing) from their mothers.  Because of this possibility, the researchers urged both parents and children to be mindful of their activity levels, and increase them to a healthy level whenever possible.

More from NPR on the study, which was published in the journal Pediatrics:

[Lead author Esther] van Sluijs says just small changes – walking to the park instead of driving or playing a good game of tag instead of a board game – can make a difference.

“Increasing your physical activity just by a little bit already helps, you don’t have to become an athlete.” she says. “If you look at [small increases in activity] over a month or a year, that can actually have quite large benefits.”

Fathers weren’t part of the study, but van Sluijs says that doesn’t mean the call for more exercise should single out mothers.

“We do recommend that interventions are not just targeted at mothers and their children,” she tells Shots. “They’re actually targeted at the family unit because we know that siblings as well play an important role for children’s physical activity.”

Exercise With Baby: Biceps
Exercise With Baby: Biceps
Exercise With Baby: Biceps

Image: Mother and son doing yoga, via Shutterstock

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Vigorous Exercise Program Helps Kids Lose Fat, Improve Heart Strength

Wednesday, April 2nd, 2014

An after-school exercise program has shown promising results in helping children lose weight and improve heart and lung strength.  More from Reuters:

It’s clear that activity is good for kids, lead author Naiman A. Khan told Reuters Health. But he was surprised at just how much of a difference this program made.

“We saw their overall body fat, abdominal fat go down, and in the absence of the program kids actually increased in overall body fat,” said Khan, from the University of Illinois at Urbana-Champaign.

For their study, the researchers randomly divided 220 kids ages eight and nine into two groups. One group participated in the FITKids program, which includes 70 minutes of moderate to vigorous physical activity five times per week for nine months, and the other group did not.

In the exercise group, kids did 20 to 25 minutes of health-related fitness activities plus 50 minutes of organized noncompetitive games meant to keep their hearts beating at 55 to 80 percent of their maximum heart rate.

That’s higher than most previous exercise studies have aimed for, which may be why this study got such good results, according to Dianne Stanton Ward of the University of North Carolina Gillings School of Global Public Health in Chapel Hill.

Ward studies obesity prevention in children. She was not involved in the new research.

Image: Girl exercising, via Shutterstock

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Exercise During Pregnancy May Boost Baby’s Brain

Friday, November 22nd, 2013

Women who get regular physical exercise during pregnancy may be doing their babies a favor by boosting their brain activity as well as their cardiovascular development.  More on a new study by Canadian researchers from The New York Times:

It has long been suspected that a mother-to-be’s activity — or lack of it — affects her unborn offspring, which is not surprising, given how their physiologies intertwine. Past studies have shown, for example, that a baby’s heart rate typically rises in unison with his or her exercising mother’s, as if the child were also working out. As a result, scientists believe, babies born to active mothers tend to have more robust cardiovascular systems from an early age than babies born to mothers who are more sedentary.

Whether gestational exercise similarly shapes an unborn child’s developing brain has been harder to quantify, although recent studies have been suggestive. An experiment presented this month at the Society for Neuroscience’s annual meeting in San Diego, for instance, reported that pregnant rats allowed to run on wheels throughout their pregnancies birthed pups that performed more dexterously in early childhood on a tricky memory test — having to identify unfamiliar objects in a familiar environment — than pups born to sedentary moms. These clever rats retained their cognitive advantage into adulthood (meaning, for rats, weeks later).

But this and similar experiments have involved animals, rather than people. Many of these studies also began comparing the creatures’ cognitive abilities when they were old enough to move about and respond to their world, by which time they potentially might have been shaped as much by their environment as by their time in the womb.

So to minimize these concerns, researchers at the University of Montreal in Canada recently recruited a group of local women who were in their first trimester of pregnancy. At that point, the women were almost identical in terms of lifestyle. All were healthy, young adults. None were athletes. Few had exercised regularly in the past, and none had exercised more than a day or two per week in the past year.

Then the women were randomized either to begin an exercise program, commencing in their second trimester, or to remain sedentary. The women in the exercise group were asked to work out for at least 20 minutes, three times a week, at a moderate intensity, equivalent to about a six or so on a scale of exertion from one to 10. Most of the women walked or jogged.

Every month, for the remainder of each woman’s pregnancy, she would visit the university’s exercise lab, so researchers could monitor her fitness. All of the volunteers, including those in the nonexercise group, also maintained daily activity logs.

After about six months and following the dictates of nature, the women gave birth. All, thankfully, had healthy boys or girls — which the scientists gently requested that the mothers almost immediately bring in for testing.

Within 12 days of birth, in fact, each of the newborns accompanied his or her mother to the lab. There, each baby was fitted with an adorable little cap containing electrodes that monitor electrical activity in the brain, settled in his or her mother’s lap, and soothed to sleep. Researchers then started a sound loop featuring a variety of low, soft sounds that recurred frequently, interspersed occasionally with more jarring, unfamiliar noises, while the baby’s brain activity was recorded.

“We know that baby’s brains respond to these kinds of sounds with a spike” in certain types of brain activity, said Elise Labonte-LeMoyne, a Ph.D. candidate at the University of Montreal, who led the study and also presented her findings at the Society for Neuroscience annual meeting. This spike is most pronounced in immature brains, she continued, and diminishes as a newborn’s brain develops and begins processing information more efficiently. “It usually disappears altogether by the time a baby is 4 months old,” she said,

In this case, the relevant brainwave activity soared in response to the novel sounds among the children born to mothers who had remained sedentary during pregnancy. But it was noticeably blunted in the babies whose mothers had exercised. In essence, “their brains were more mature,” Ms. Labonte-LeMoyne said.

Pregnancy Workouts: Easy Beginner Exercises
Pregnancy Workouts: Easy Beginner Exercises
Pregnancy Workouts: Easy Beginner Exercises

 

Image: Fit pregnant woman, via Shutterstock

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Kids Less Fit Than Their Parents Were, Study Finds

Wednesday, November 20th, 2013

An international analysis of children’s fitness has revealed that today’s kids can’t run as far or as fast as their parents could at their age.  More from The Associated Press:

On average, it takes children 90 seconds longer to run a mile than their counterparts did 30 years ago. Heart-related fitness has declined 5 percent per decade since 1975 for children ages 9 to 17.

The American Heart Association, whose conference featured the research on Tuesday, says it’s the first to show that children’s fitness has declined worldwide over the last three decades.

‘‘It makes sense. We have kids that are less active than before,’’ said Dr. Stephen Daniels, a University of Colorado pediatrician and spokesman for the heart association.

Health experts recommend that children 6 and older get 60 minutes of moderately vigorous activity accumulated over a day. Only one-third of American kids do now.

‘‘Kids aren’t getting enough opportunities to build up that activity over the course of the day,’’ Daniels said. ‘‘Many schools, for economic reasons, don’t have any physical education at all. Some rely on recess’’ to provide exercise.

Sam Kass, a White House chef and head of first lady Michelle Obama’s Let’s Move program, stressed the role of schools in a speech to the conference on Monday.

‘‘We are currently facing the most sedentary generation of children in our history,’’ Kass said.

The new study was led by Grant Tomkinson, an exercise physiologist at the University of South Australia. Researchers analyzed 50 studies on running fitness — a key measure of cardiovascular health and endurance — involving 25 million children ages 9 to 17 in 28 countries from 1964 to 2010.

Image: Running feet, via Shutterstock

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Boy Scout Jamboree Bans Obese Kids and Adults

Monday, July 22nd, 2013

Some 30,000 Boy Scouts and 7,000 leaders gathered July 15 in West Virginia for the annual National Scouts Jamboree, and for the second time in the event’s history, each of them was subject to a body mass index (BMI) cutoff that was designed to prohibit obese or unhealthily overweight people from participating in the event.  The standard, organizers say, is in place to protect the health and safety of participants, as the Jamboree is packed with physical activities ranging from hiking to rock climbing.

“This policy is not meant to keep anyone out at all, and it’s just to make sure that they’re safe,” Boy Scouts of America’s public relations director Deron Smith told CNN. “We offer thousands of summer camp experiences (that) do not have this requirement.”

But Dr. Jennifer Shu, an Atlanta pediatrician, told CNN, “Any organization can make their own rules, but as a pediatrician I feel like we should be promoting physical activity for everybody, be as inclusive as possible, and only exclude from activity if there’s a physical threat to their health,” she said.

Boys whose BMI is slightly lower than 40, but who are still considered obese for their height can be admitted to the Jamboree, but they are subject to additional health scrutiny, including a personal health recommendation from a health care provider.

Image: Scout campsite, via Shutterstock

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