Sentences with phrase «by joint angle»

Muscle forces and internal moment arm lengths can both be altered by joint angle; muscle forces are also altered by contraction velocity.

Not exact matches

In van de Panne's model, for example, once the path of the swinging foot is specified by the controller, the angles between various joints in the leg and hip are automatically calculated.

For example, the robotic arm on the International Space Station is operated by controlling the angles of its joints.

Bring your arms straight up as you rise into a squat with your right leg bent at a 90 ° angle for Warrior I. Stack the joints by bringing the knee directly above the ankle.

This was associated with the more acute peak trunk angles displayed by the inexperienced lifters, which was taken to imply a greater moment arm length at the hip joint.

Comparing the effect of shoulder joint angle, Pizzari et al. (2014) measured muscle activity in all three regions of the trapezius muscle while performing a standard dumbbell shrug with the arms by the sides or abducted 30 degrees.

Joint angle - specific strength gains at shorter muscle lengths tend to be caused by changes in neural drive (Noorkõiv et al. 2014).

Joint angle - specific strength gains at longer muscle lengths tend to be caused by regional hypertrophy.

And this explains why the patterns of joint angle - specific strength gains differ between isometric training with either long or short muscle lengths: they are caused by different adaptations.

It can be simply measured using dynamometry by taking multiple measurements in the same dynamometer of the same joint angle movement, at different angular velocities.

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.

So if different joint angles are strengthened to a greater extent by common vertical (axial) exercises and by common horizontal (anteroposterior exercises), then this could lead to force - vector specificity.

McGuigan and Wilson (1996) found that peak hip joint angle was more acute in the conventional deadlift style, by around 10 degrees.

by Walter Chaw There is a moment in Robert Altman's beautifully metered The Company where we're introduced to a cook played by James Franco through a low angle shot hovering over the green, smoke - haloed expanse of a gin - joint pool table.

The long - travel Multimatic DSSV shocks are tuned for high - speed use on the racecourse, and are complimented by plunging half - shafts, high - angle upper ball joints, stiffer tie rods, and an anti-wrap link in the rear.

Efforts to minimize torque steer were achieved by the half shafts and the angles of the joints at the ends of those shafts being equalized, helping the Legend to accelerate in a straight line.

With regard to joint disorders affected by neutering, one study documents a 3-fold increase in excessive tibial plateau angle — a known risk factor for development of CCL — in large dogs [14].

The superior fit is further assured by a clever ball - joint hinge that makes it easy to perfectly angle the speakers to suit your face shape.