Your child loves video games. Doesn’t like to play outside. Craves fast food. And he or she is looking a little chubby. Should you worry?
About 17 percent of American children and adolescents are obese, according to the Pediatric Endocrine Society, said Dr. Karin VanBaak, an assistant professor for the Department of Family Medicine, Division of Sports Medicine at the University of Colorado School of Medicine. She spends most of her time as a family physician at UCHealth Family Medicine Clinic – Boulder. She also teaches family medicine residents at A.F. Williams Family Medicine – Stapleton. And she serves as a team physician for CU Boulder Athletics.
VanBaak is particularly interested in the overlap between primary care and sports medicine, including mental health, preventive care, lifestyle management of chronic illnesses and the management of medical problems in athletes.
One issue that interests her in the overlap between primary care and physical activity is pediatric obesity.
Who makes a diagnosis of pediatric obesity?
The formal diagnosis of obesity in children can be made by their physician based on a child’s weight and other growth measurements, she said.
The condition should be taken seriously, she added.
But won’t most kids “grow out of it?”
“Some kids’ weight will normalize as they grow, but I think that just focusing on the weight or BMI number is a mistake,’ she said. “I think it’s our job as physicians to identify how a kid got into this situation in the first place. The habits that lead to pediatric obesity are harmful in the short and long term, increasing the lifelong risk or medical problems.”
Obesity at a young age can increase the child’s risk “of just about anything you can think of,” she said. “We tend to focus on the risks of early high blood pressure, diabetes and heart disease. But obesity in kids also increases their risk of mental health problems, musculoskeletal pain and injury” and it also can contribute to social and academic difficulties, she added.
There can be many and varied causes.
“Genetics definitely plays a role,” VanBaak said. But the whole picture is a combination of genetic predisposition, biologic factors and lifestyle.
“I do think that it’s important to focus on preventable causes,” she said. “Diet is important, and we will often ask families about how many sugar-containing beverages children are consuming. Lack of physical activity is another major risk factor, and the risk factor of too much screen time is related to physical activity.”
Is the solution a change in diet?
The treatment is not simple, she said.
“It takes a multifaceted approach and commitment by the child, parents and sometimes others, including teachers,” VanBaak said.
“We have strong evidence that the best treatment is family-centered and focuses on lifestyle modifications,” including diet and increased physical activity.
“We might also suggest behavioral strategies to help address any family or personal stressors that may lead to or result from obesity.”
Ultimately, though, the best treatment is prevention, she added. And prevention pretty much follows the same path as treatment.
“It’s much easier to prevent obesity than to reverse obesity,” she said.
“There is also some evidence that children with disordered sleep patterns are more likely to be obese and that addressing sleep patterns can help with obesity treatment. We also know that breast-feeding infants rather than formula feeding infants seems to help decrease the risk of obesity later in life,” she said.
How much exercise is needed?
A good diet is important, but so is exercise, she said.
“Let’s move! Movement is so important for kids. It has many, many health benefits, and just one of these is that it can help kids maintain a normal weight or return to a normal weight.”
Current recommendations say that kids should get at least 20 minutes of vigorous physical activity five days a week, and ideally kids will get at least 60 minutes of vigorous physical activity five days a week.
“Exercise is essential,” she said, “not just for treating obesity or helping kids maintain a normal weight, but for lifelong overall health.
“I really like the Let’s Move initiative started by our former First Lady, Michelle Obama. One thing that I really like about this initiative is the focus on ‘movement’ and ‘play’ instead of ‘exercise.’ I worry sometimes that ‘exercise’ can turn into a chore for kids. Instead, it’s important for us to help our kids and families find a variety of ways to be active that they enjoy. I don’t think that exercise should mean spending time on a treadmill watching TV. We find even wider benefits from getting kids outside, spending time with family, moving, and playing at the same time.”
She added that she “can’t stress enough” the importance of family involvement in treatment.
Can medications help?
“If you ask Dr. Google, you will find a wide range of medications that promise to help with weight loss. Some of these are options for adults, but we only use medication in children in rare cases, and we always try lifestyle changes first. The same goes for bariatric surgery and kids. We always prefer to focus on the underlying cause. As family doctors, we think that it is never too early to develop lifelong healthy habits.”
At what age should a parent become concerned that their child is overweight?
“There is no simple answer to this question,” she said. “And the question illustrates the importance of having your child well known by their family doctor or pediatrician so the doctor and parents can follow their weight closely over time.
“Our guidelines give physicians different ways to measure obesity in kids over and under 2 years of age. That being said, we prefer to make the diagnosis based on weight trends over time, and not just a single measurement.”
Why is obesity in teens hard to treat?
Obesity can be especially difficult to treat in teenagers, for several reasons.
“Adolescence is a stressful time with a wide variety of stresses that are unavoidable, including changes in social stresses, changes in academic expectations, time pressure, increased incidence of mental health issues, and others,” she said.
“Because of this, it can be a more complicated issue to untangle than obesity in younger children. The second issue is that by time someone is a teenager, they have had a long time to build ingrained habits and it can be more difficult to break out of those habits.”
VanBaak is particularly concerned about the current addiction to electronic devices.
“As time goes on, family doctors and pediatricians are continuing to realize that time in front of electronic screens has an important role to play in the development of pediatric obesity. This can be tied into movement, but also has separate effects on mental health and learning.
“It’s really important to try and follow the guidelines that we have that recommend limiting non-academic screen time to 1-2 hours per day.”
In other words, parents need to pay attention to their child’s weight and overall well-being, working with their pediatrician or family physician to make sure they grow up healthy.
The following resources may be helpful for parents: