Comparing the effect of
shoulder joint angle, Park et al. (2013) explored the difference in latissimus dorsi muscle activity during three angles (60, 90 and 120 degrees) of shoulder elevation in the frontal, sagittal and scapular plane.
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.
Not exact matches
Sensors in each
joint measure the bending
angle or the degree of a twisting motion, and transfer this information to a software that computes how the virtual characters
should move.
Regardless of what feels most comfortable to you, a wide grip will move your elbows out and put your wrists at an
angle which excessively stresses the
joints, as well being too hard on your
shoulders.
This continuous change of
angles and stresses around the
joint will help make your
shoulders more adaptable to strains and forces encountered in all your training and daily activities.
The
angles created at the
shoulder, elbow, and wrist
joints are important to note.
Because your
shoulder muscles and the
joints will be working in their natural
angles since there is no
shoulder joint rotation to hold the loaded bar.
The grip on the bar
should normally be wide enough so that the elbow
joints are at least at right
angles and the forearms in a perpendicular plane.
On the other hand, people who use an internal focus [change their
joint angles disproportionally](https://www.ncbi.nlm.nih.gov/pubmed/19846388)-- some
joints end up moving more than they
should, while others are neglected.
If this is the case, we
should find that the main causes of specificity in strength gains after training with different types of external load are regional hypertrophy and
joint angle - specific changes in neural drive (especially at end range of motion).
Landin & Thompson (2010) investigated the effect of elbow flexion and
shoulder extension
joint angle on the peak moment of the long head of the triceps.
The bench or some kind of box
should be high enough to allow an
angle of 90 degrees at your knee
joint when your foot is on the box.
Therefore, you
should first determine what you want to get out of resistance training program and then select exercises that stress the muscle and
joint angles you want to target.
Since strength is specific, then: strength training of the hamstrings at long muscle lengths, and the quadriceps and gluteus maximus at short muscle lengths,
should lead to superior gains in sprinting performance than strength training at other
joint angles.
The three regions of the latissimus dorsi appear to function similarly as primary
shoulder extensors in the scapular plane (although the superior and inferior fibers seem to have greater peak moment arm lengths than the middle fibers) while displaying peak moment arm lengths at very different
joint angles.
It connects with the legs at the hips and
shoulders and the
angles at which all these
joints fit together is crucial to the dog's health.
Some dogs have an upper arm (humerus) that is not laid back at a good
angle from point of
shoulder to elbow
joint.
The term «angulation» refers mainly to the
angles formed at the hip and
shoulder joints, stifle and hock.
In his book (1944) on canine structure he reported that based on his clinical measurements on more than 1000 dogs, he wasn't able to find dogs with a 45 - degree
angle of the blade or a 90 - degree
angle at the
shoulder joint.
The
shoulders should be very wall laid back, with the
shoulder blades sloping at a 45 - degree
angle forward and downward to the
shoulder joints.
Having nails that are too long causes a dog to change the
angle of its paw and leg as it moves, potentially causing or exacerbating trouble in all the
joints, right up to the
shoulder or hip.