In base alla mia modestissima esperienza posso dire che questo principio è asslutemente VERO:
from: http://www.mensfitness.com/mens/also...g_league3.html
"Marilyn Pink, Ph.D., P.T., a key member of Jobe's Centinela Medical Center team, implores weightlifters to follow one general rule: Keep the elbows and the press/pull bars in front of your body on all exercises. "Any time you put your body below or in front of your elbows-an unnatural position-you're asking for trouble," she says. This creates excessive leverage on the head of the humerus bone, stretching the connective tissue around the shoulder joint. "
from: http://www.mensfitness.com/mens/also...g_league3.html
"Marilyn Pink, Ph.D., P.T., a key member of Jobe's Centinela Medical Center team, implores weightlifters to follow one general rule: Keep the elbows and the press/pull bars in front of your body on all exercises. "Any time you put your body below or in front of your elbows-an unnatural position-you're asking for trouble," she says. This creates excessive leverage on the head of the humerus bone, stretching the connective tissue around the shoulder joint. "