Young athletes who participate in multidirectional sports, instead of specializing in a unidirectional sport such as running, can build stronger bones and reduce the risk for bone injuries as adults, according to a new study.
The researchers examined Division I and II female cross-country runners, who often experience bone stress injuries such as stress fractures.
The study found that athletes who had a history of running and participating in sports that require movement in many directions—such as basketball or soccer—had better bone structure and strength than those who had a history of solely running, swimming, or cycling.
The findings, published in August in the journal Medicine and Science in Sports and Exercise, support recommendations that athletes delay specialization in running and that they instead play multidirectional sports when younger to build a more robust skeleton and potentially prevent bone stress injuries.
“Our data show that playing multidirectional sports when younger versus specializing in one sport, such as running, decreased a person’s bone injury risk by developing a bigger, stronger skeleton,” said study author Stuart Warden, associate dean for research and professor at the Indiana University School of Health and Human Sciences.
“There is a common misperception that kids need to specialize in a single sport to succeed at higher levels. However, recent data indicate that athletes who specialize at a young age are at a greater risk of an overuse injury and are less likely to progress to higher levels of competition.”
Historically, Warden said, researchers have examined the bone’s mass—how much bone a person has—to determine how healthy their skeleton will be throughout life. But in previous studies, Warden and his colleagues found that as a person ages, both mass and size are equally important.
In the current study, the researchers used high-resolution imaging to assess the shin bone near the ankle and bones in the feet where bone stress injuries frequently occur in runners. They found that the athletes who participated in both running and multidirectional sports when younger had a 10 to 20 percent greater bone strength than athletes who solely ran.
“Our research shows that the runners who played multidirectional sports when younger had stronger bones as collegiate athletes, which puts them at less risk for bone stress injuries including stress fractures,” Warden said.
“We want to ensure people have better, stronger bones as they grow, become adolescents, and go through life. Specializing in one sport at too young of an age means they are more likely to get injured and not make it at the collegiate and professional levels.”
Anyone who oversees a junior athlete or team—parents, coaches, or trainers—should think twice about pushing them to specialize in one area too early, Warden said. To allow for proper growth and development to occur, he recommends young athletes not specialize until at least their freshman year of high school.
For athletes who already play multidirectional sports, he said it’s important that they take time off for rest and recovery during the year, which can improve both bone strength and performance.
This article was originally published by Indiana University. Republished via Futurity.org under Creative Commons License 4.0.
