Sentences with phrase «produce knee and hip»

EOS, a company based in Germany, prints metal items to produce knee and hip replacements.

Not exact matches

Since you have to extend your knees and hips in order to stand up from the bottom of a squat, your quads, glutes, hams and adductors magni have to contract hard enough to produce the required knee and hip extension torque.

This means that the hip extensor and knee extensor muscles are producing force when they are at more moderate (and not short) muscle lengths.

This suggests that the ability of the hip flexors and extensors to produce force, and the ability of the knee extensors and flexors to absorb it, during the swing phase is the key to faster running.

One study by Lovell et al. (2012) reported that the supine isometric hip adduction in 45 degrees of hip and knee flexion was the best position for producing maximal activity in the gracilis.

They noted that squat jumps produced greater hip extension moment than back squats with a moderate load (272 vs. 149Nm) and that the ratio between hip extension moments in these two exercises was smaller than the ratio between knee extension moments (1.8 vs. 2.3 times).

One study by Lovell et al. (2012) explored a number of common rehabilitation tests for the adductors and found that the supine isometric hip adduction in 0 or 45 degrees of hip and knee flexion were the best positions for producing maximal EMG amplitude in the adductor magnus.

Furthermore, strong glutes will shift movement patterns to absorb and produce more force at the hips and less at the knee joint.

Therefore, athletes sprint faster by producing more force (concentrically) by the hip extensors (gluteus maximus, adductor magnus, and hamstrings) and hip flexors, and then absorbing it (eccentrically) by the knee flexors (hamstrings) and extensors (quadriceps).

It is expected that performing deadlifts with the same absolute load would produce greatest EMG amplitude in the gluteus maximus when deadlifts are pulled from the lower starting points because external hip extension moment arm lengths and hip extension moments are greatest at lift - off in comparison with knee - passing and lock - out (Escamilla et al. 2000; Escamilla et al. 2002).

So exercises that involve less knee extension (hip thrusts, deadlifts, pull throughs and back extensions) will tend to produce much greater hip muscle activation than those that involve more knee extension (squats, lunges, and leg presses), although there are other factors involved of course!