Sentences with phrase «hip flexion»

Thus, changes in the internal moment arm lengths of the gluteus maximus and hamstrings do not appear to explain the greater hip extension moment in greater degrees of hip flexion angle.

Although many different biomechanical factors increased with jump training, it was the increase in hip flexion angle (which leads to a longer countermovement phase, a longer duration concentric phase, and more concentric work done) and an increase in hip joint work done that were most important for driving the gains in jump height, at least on a joint level.

They report no gains in hip flexion range of motion from foam rolling the hamstrings for 8 weeks (9), indicating that effects of foam rolling are neither cumulative nor last over longer periods of time.

The gluteus maximus moment arm for hip extension indicates that it is a key hip extensor in the sagittal plane, and decreases with increasing hip flexion angle.

For example, Lunnen et al. (1981) studied a much greater hip flexion angle (135 degrees) than many of the other researchers (e.g. Mohamed et al. 2002; Guex et al. 2012) and it is possible that the large stretch in this position moved the muscle up the passive arm of the length - tension curve, thereby reducing neural drive.

The moment arm length of the gluteus maximus increases as hip flexion reduces from 90 degrees up to full hip extension, being largest in full hip extension (standing upright).

Da Silva et al. (2009a) investigated the effects of pelvic stabilization and degree of hip flexion on hamstring EMG amplitude during horizontal back extensions.

Exercises that train the gluteus maximus with peak contractions in high degrees of hip flexion while the knee is bent (such as squats) are therefore less likely to be as effective as exercises that train the gluteus maximus with peak contractions closer to full hip extension, while the knee is bent (such as glute bridges and hip thrusts).

The greater anterior pelvic tilt and peak hip flexion on the injured side may lead to a greater maximum length of this hamstring muscle during running, which may predispose them to greater risk of recurrent hamstring strain injury.

This study tested muscle activation during maximum voluntary contractions of hip extension, in different hip flexion joint angles while the knee was flexed, and found that gluteus maximus EMG amplitude was reduced by a third when the hip was flexed, compared to when it was fully extended.

becomes even more troublesome is in those sports and activities that require either deep hip flexion (such as squatting) or rotation

Hamstrings activity does not appear to alter markedly with changing hip flexion angle (Worrell et al. 2001; Mohammed et al. 2002; Guex et al. 2012).

«If you don't get a lot of hip flexion during the squat, you won't use your glutes.

Unfortunately, the function of the rectus abdominus (the six - pack area of the abs) is spinal flexion (curling the spine forward) not hip flexion (bending at the waist like this machine forces you to do).

Perks: Builds a strong, toned back and reinforces proper hip flexion.

We can all benefit from stretching out our hip flexors, whether it's to open up tight areas from sitting too much, or to help counterbalance prolonged or strenuous hip flexion from a more active lifestyle.

Also, reaching depth in a narrow stance squat requires tucking the lumbar spine under the torso in order to facilitate hip flexion, which can be bad news because spinal flexion under a load will place undue pressure on certain segments of the spine and contribute to bulging discs and other issues.

Standing hip flexion with a resistance band.

The less hip flexion necessary, the better.

The degree of hip flexion necessary to reach proper depth is very individual, and relies on the flexibility of the entire lower body.

Increasing hip flexion reduces gluteus maximus EMG amplitude when hip extension force is tested isometrically at different joint angles.

In one study exploring the EMG amplitude in the pectineus, Lovell et al. (2012) reported that the supine isometric hip adduction in 90 degrees of hip and knee flexion was the best position, while Giphart et al. (2012) found that the pectineus was activated as a hip flexor during the supine bent - leg hip flexion exercise.

It trains what people need most for back health and minimizes the strong hip flexion contraction which most people aren't going to need.

Bumbo says: «The seat stabilizes the child into slight hip flexion, placing the pelvis in a slight anterior pelvic tilt which facilitates lumbar extension.»

Example strengthening exercises: Standing hip flexion using resistance band.

Example strengthening exercises - Isometric hip flexion.

When located at or below the waist, posterior - chain muscles necessitate hip flexion.

In the position of 90 ° hip flexion plus the addition of external rotation, is also a great stretch for the posterior capsule of the hip.

Substitute standing rapid hip extension (hands on wall, chest up, rapidly extend your right hip back with slight bend in your knee, holding your TA tight so that it is pure hip flexion and no lumbar extension.

First the squat and hinge are invaluable lower body functions however they both involve repeated hip flexion with very little stretching of the hip flexors.

It's explosive hip flexion.

Sit - ups work the abs isometrically (without movement) through hip flexion like this as well.

Do they gain more hip flexion?

Key exercises: horizontally orientated medicine ball throws, horizontally orientated jumps, resisted sprints over short distances, resisted hip flexion, kicking with over and underweight balls

Before writing an article about stretching hip flexors, might I recommend educating yourself on what hip flexion is, and what muscles are responsible for that action?

Hamstring strains are usually caused by a forceful hip flexion while the hamstring is working to slow the extension of the knee as in kicking or running.

Unlike sprinting, this eccentric strength is likely necessary for the hip extensors and knee extensors, as the COD maneuver usually involves combined hip flexion and knee flexion.

Hip flexion problems are very common in runners and those who use their bodies to jump and kick.

Sit ups involve dynamic hip flexion and also either isometric or dynamic trunk flexion, depending on the technique used.

Arnold and Delp (2001) noted that during the typical hip flexion - extension cycle involved in gait, the moment arm of the gracilis in the transverse plane was for external rotation but was still very small at around 1.0 cm.

The negative values all imply that the moment arm length acts to produce hip flexion instead of hip extension.

There are many more step - up variations, such as «strict» straight - leg step - ups for advanced trainees with extremely strong hamstrings, or step - ups with opposite hip flexion.

The gluteus muscle is worked during several core leg exercises that require hip flexion and extension, namely squats, deadlifts, lunges, and leg presses.

The subjects were then asked to maintain the stretch at the hip and were restrained by investigators across the chest to avoid any further hip flexion.