sport supplements n.
Skip this Video
Loading SlideShow in 5 Seconds..
Sport Supplements PowerPoint Presentation
Download Presentation
Sport Supplements

Sport Supplements

130 Vues Download Presentation
Télécharger la présentation

Sport Supplements

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Sport Supplements

  2. Supplements • "(Supplements) are actually more of a potential problem in our society than steroids,” said C. Roger Rees, a human performance sciences professor at Adelphi University who specializes in social issues and high school sports. "Kids see supplements as safe, and they’re sold over the counter. I’d be concerned about large use if I was a parent.”

  3. What are performance-enhancing drugs and supplements? • Performance-enhancing drugs and supplements are used to boost athletic performance, ward off fatigue and enhance physical appearance. They're also taken to increase muscle mass and strength. But they can cause serious harm.

  4. Anabolic steroids • Anabolic steroids are synthetic versions of testosterone. They build muscle and increase strength, and are particularly popular with bodybuilders and football players. Anabolic steroids can halt bone growth and result in a permanently short stature, so they're particularly dangerous for still-growing adolescents. Steroids can also damage the heart and liver.

  5. Creatine • Creatine is a naturally occurring compound in the body that is also sold as an over-the-counter supplement. It's primarily used to enhance recovery after a workout and increase muscle mass and strength. Creatine is popular with athletes who participate in sports in which short bursts of power are required. Examples include football, gymnastics, hockey and wrestling. Side effects include weight gain, nausea and muscle cramps. High doses of creatine have the potential to harm the kidneys.

  6. Creatine • Creatine, which the American College of Sports Medicine says shouldn’t be used by those younger than 18, has been shown to be ineffective for some people. It can cause stomach upset and muscle cramps and overwork the kidneys.

  7. Steroid precursors • Steroid precursors, such as androstenedione ("andro") and dehydroepiandrosterone (DHEA), are substances that the body converts into anabolic steroids. They are used to increase muscle mass. • The Anabolic Steroid Control Act of 2004 made most steroid precursors illegal without a prescription. DHEA is the only one that is still available in over-the-counter preparations. Side effects of steroid precursors are similar to those for steroids.

  8. Protein Protein, for example, is relatively safe. But some products may contain multiple sources of protein, said personal trainer Erin Palinski, a registered dietitian who specializes in adolescent athletes. In general, athletes need 2 grams of protein per kilogram of body weight. "Teen athletes who get too much can excrete calcium, which could decrease bone mass,” Palinski said. "Since that’s prime time for bone building, it could lead to future problems.”

  9. Why do teens take them? • Teens tend to deny their mortality and take risks that more mature people wouldn't consider. Here are some reasons teen athletes might consider taking performance-enhancing drugs. • Pressure from parents or peers • A desire to gain muscle mass • A desire to be stronger • A negative body image • A tendency to compare their appearance with others', particularly those who use steroids

  10. Resources • • • •