Sometimes, youth sports research can be shocking. Not in this case.
A medical study published this month concludes that "physically inactive adolescents have more emotional and behavorial problems than those who are physically active." I see millions of parents nodding in agreement.
Boys who reported less than one hour of moderate to vigorous physical activity a week had more symptoms identified by researchers as anxious/depressed and withdrawn/depressed. Girls had similar issues, and also complained of sleep problems.
This is the opposite end of the spectrum from the concern raised often here - children struggling with overuse injuries - but it is equally troublesome.
The study appears in Medicine & Science in Sports & Exercise, the scientific journal of the American College of Sports Medicine.