925

wensonfuUID：2318700

925
It's been a fun baseball season, but the storm club of steroids has hung over the game for years now, especially tarnished Barry Bonds' xxx on the old time home run record. Tufts University physicist Roger Tobin is a big baseball fan and recently did a calculation to evaluate just how much impact steroids could actually have on power hitting. When he crunched the numbers, he found the following: steroids might bring about 10% increase in muscle mass that xxx muscle could help batter swing 5% faster and xxx bat speed could cause the ball to jump xxx the bat 4% faster. Doesn't sound like much. However, if you view at 4% in the initial velocity model distribution of trajectory of bat and baseballs, you can increase homers by a xxx 50%. Tobin's research will appear in the American Journal of Physics. He notes that weight lifting in small xxx of ballparks also play a role in pumping up the numbers of home runs. But the power searches of 1990 go inside with steroids more than the other factors.