bazinga skrev:Hold nakken neutral.
Udfør squat lidt langsommere, for meget bounce i bunden, som øger belastningen på dine knæ.
ikke helt enig.
Rippetoe
"We have already introduced the concept of the "bounce" out of the bottom. Since it is accomplished with the hips, and with the part of the brain that's thinking about the hips, this seems like a fine time to discuss it. Once again, the bounce DOES NOT INVOLVE THE KNEE. It happens when the hamstrings reach the limit of their normal range of motion due to the slight forward motion of the knee and pronounced backward motion of the hips. Remember: the pelvis is locked in position with the torso by the lower back muscles, the hamstrings attach to the ischial tuberosity at the bottom of the pelvis, and the pelvis tilits forward with the torso as squat depth increases, thus stretching out the hamstring. The bounce out of the bottom of the squat is essentially a correct use of the stretch reflex inherent in any dynamic muscle contraction. It is safe, it is correct, and it is necessary if heavy weights are to be lifted. The only way it can hurt the knees is if the hamstrings are relaxed at the bottom, which would result in the knees traveling forward. If the hips are shoved back at the bottom, the hamstrings will tighten, the knee will be protected, and power out of the bottom is increased."
Synes bounce ud af bunden er helt fint hvis man kan holde ryggen. Det kan trådstarter dog ikke.