(Menstruation releases estrogen, which is vital for calcium absorption.)Įxperts advise both girls and boys to not take on too much mileage too soon, though there isn't a con-sensus on what exactly "too much" is. Amenorrhea is a red flag for all female runners but is especially troubling for teens in the midst of their bone-building years. ![]() ![]() One study determined that 30 to 41 percent of 422 high school- and college-aged female runners had the disorder. Many young female runners who repeatedly miss their periods develop a condition called amenorrhea, says Anne Hoch, D.O., director of the Women's Sports Medicine Program at the Froedtert & the Medical College of Wisconsin. As a result, joints and muscles can be prone to injury. Bones develop faster than their supporting ligaments and tendons. Runners had the highest bone-mineral density and strength of the four groups.Īs fit as you are, your growing body still needs to be handled with care. Blimkie coauthored studies that looked at the bones of female runners, triathletes, cyclists, and swimmers. "Boys develop proportionally more muscles than girls do and get the natural power advantage," says Cameron Blimkie, Ph.D., professor of kinesiology at McMaster University in Ontario.Īs they develop, running-or other weight-bearing exercise-helps make bones as dense as possible. That said, as muscle mass piles on, boys have a distinct upper hand-or, in this case, quad. Japanese researchers found that in a series of sprints, teenage girls lost 10 percent less power than boys their age did. Girls share the same ability to pour on the power-and can sustain it even better than boys. Also, levels of lactate, the by-product that accompanies intense efforts, are naturally lower in teens. The boys sustained their power output better than the men, partly because teens regenerate creatine (a compound that supplies muscles with energy) more quickly than older runners. A British study compared 12 boys and 13 men doing 10 sets of 10-second sprints. Runners in the throes of puberty have superpowers-literally. Acosta ran through it, and when it subsided, he grew into one of his region's top runners. It causes tenderness just below the knee, and resolves itself once development slows. ![]() As a freshman, Acosta suffered from Osgood-Schlatter, a common condition that strikes athletes during growth spurts. "Um, maybe the middle mile of the race?" Yet even a young career can encounter roadblocks. "A weakness?" says Jeremy Acosta, a 17-year-old cross-country star from Palmdale, California, who lists hills and his final kick as his fortes. Your body is catapulting into adulthood, and everything from muscle mass, strength, bone density, and VO2 max (the volume of oxygen your body takes in and processes) are on the rise. Without even trying, you're gaining speed and recovering instantly. Still, he escaped without injuries, and it made the race all the more memorable.Ah, youth. ![]() Perhaps the time could have been a shade faster. “He thought he was a swim team guy today.” “I’ve told Tucker you can’t get there faster diving, just run through and you’ll be fine,” coach Pat Henry said. READ MORE: Premier League beware - Guardiola is building to take Man City to new levels of dominance It really didn’t matter which one of us won first place, we knew if we gave it our all we would be happy with each other.” “The mindset was to score as many points as possible, we wanted to go 1-2-3-4. “Me and my teammates all worked hard for this, and I came out with the win. “Honestly, I’m glad I got the win and competed against the best,” Tucker said, via the school’s site. Whether he was losing his balance or just hoping to make a lasting impression, Tucker leapt from more than a body length away to narrowly edge teammate Robert Grant by less than a tenth of a second. READ MORE: Gossip - Coutinho ‘to replace outgoing Hazard’ at Chelsea and more
0 Comments
Leave a Reply. |