Sentences with phrase «flexion force»

Knee flexion force production seems to be greater in prone than in supine (Barr & Duncan, 1988; Worrell et al. 1990), while standing may lead to greater force than prone (Kramer et al. 1996).

Beyond that, when you brace, you engage your rectus abdominus, which has a flexion force, again putting your intervertebral discs at risk as patients relying on this muscle can't and don't hold the natural / protective lordotic curve of the lumbar spine.

Not exact matches

If athletes train the core through spinal flexion, extension and rotation they are not efficient at redistributing and redirecting force.

Goose bumps, shivering, extensor movements of the arms, rapid flexion of the elbows, elevation of the arms above the bed, crossing of the hands, reaching of the hands toward the neck, forced exhalation, and thoracic respiratory - like movements... These complex sequential movements are felt to be release phenomena from the spinal cord including the upper cervical cord and do not [emphasis author's] mean that the patient is no longer brain dead.»

Proper head positioning can help you prevent injury and generate more force, but looking at the ceiling during heavy squats squeezes the spinal discs in your neck, hyperextends the neck, forces the hips forward prematurely, increases knee flexion and can easily result with neck pain and injury.

Computer - based estimation of the hip joint reaction force and hip flexion angle in three different sitting configurations.

Since the hips are multidirectional joints that can produce force in three planes of motion, the wide stance squat provides a superior possibility to train the hips in all three planes and develop stable hip joints by producing larger hip extension movements and greater hip flexion than narrow stance squats.

And if performed regularly and correctly, this rowing variation with horizontal band resistance can provide several unique benefits such as teaching you proper hip - hinging mechanics, improving balance, eliminating spinal flexion and forcing your lats to give their 100 % by both protracting and elevating them.

(Callaghan, J.P., and McGill, S.M. (2001) Intervertebral disc herniation: Studies on a porcine model exposed to highly repetitive flexion / extension motion with compressive force.

Marchant, D.C., Greig, M., & Scott, C. (2009) Attentional focusing instructions influence force production and muscular activity during isokinetic elbow flexions.

Therefore, in balance, it appears the calf muscles display their greatest force - producing ability in plantar - flexion.

As the core breaks down, the rest of the body is forced to take up the slack resulting in unwanted rotation, flexion / extension and increased risk of injury.

It is suggested that this works due to the ability of the exercise to increase the peak eccentric force of the hamstrings at shallower angles of knee flexion (the knee is more extended) vs. a leg curl which puts a premium on concentric force when the knee is in full flexion.

If doing twisting postures with a flexed upper spine, the pose involves flexion and therefore is subject to the biomechanical forces of flexion on the spine.

The biceps display their greatest force producing potential at 90 degrees of elbow flexion.

When you practice any trunk - flexing movement such as Malasana, be careful not to overdo it, because forced flexion can injure the disks and other soft tissue that hold your spine together.

In the sagittal plane, the short and long head of the biceps perform elbow flexion and displays its greatest force producing potential with the elbow flexed at 90 degrees.

Further, since the abdominal muscles attach to the pelvis and ribcage, each muscle has a force producing potential in flexion or twisting motions.

Thus, neither the ability of the gluteus maximus nor hamstrings to produce muscular force appears to explain the relationship between the hip extension moment and hip flexion angle.

It's all about the resistance and compression that creates these directional forces that enhance our adductors for flexion and extension [Balance Training].

Traditional (not force vector - specific) alternatives include trap bar deadlift jumps and jump squats, and these may also be necessary for developing the adductor magnus, which has a larger moment arm in greater hip flexion.

Moreover, Jakobsen et al. (2013) reported that during lunges with both free weights and elastic resistance, EMG amplitude of most of the leg muscles is greatest at the point of peak hip and knee flexion, where ground reaction forces are exerted in order to start the lifting phase but that in the elastic resistance condition, there was a trend towards a more even level of EMG amplitude across joint angles.

Anteroposterior exercises involve greater forces closer to full hip extension, while axial exercises tend to produce greater forces in high degrees of hip flexion (Zweifel, 2017).

Ackland et al. (2008) reported that the middle deltoid displayed a similarly large shoulder flexion muscle moment arm of 33.1 mm at 120 degrees, indicating that both the anterior and middle deltoids are capable of producing large forces during shoulder flexion in the scapular plane.

A formal program for a pet's specific issues is ideal and is best based on the pet's individual joint extension / flexion measurements, force plate analysis, muscle circumference measurements, etc..

IF tidal forces are the driver, we'd expect the eruptions to be at the time of maximal flexion, which is the time of the maximal tidal forces.