Sentences with phrase «isokinetic muscle»

Similarly, peak moment ratios between muscle groups can be performed by setting the dynamometer to perform concentric isokinetic muscle actions in both directions, rather than concentric in one direction and eccentric in the other.

Not exact matches

Noe et al. (1992) assessed erector spinae muscle activity during an isokinetic machine deadlift, and found that erector spinae muscle activity peaked at 83 % of lift height, which was after the point where peak force output was produced (67 % of lift).

Testing strength when muscles are changing length (such as during isokinetic dynamometry or during a conventional barbell lift) must necessarily involve a reduction in maximal force - generating capacity as a result of both of these relationships.

In contrast, isokinetic training failed to improve torque at short muscle lengths (35 and 45 degrees), and also failed to increase EMG amplitude at long muscle lengths (85 degrees).

Although both types of external load were variable, the machine knee extension would still have involved a larger contraction at longer muscle lengths than the isokinetic device.

Comparing two different velocities using an isokinetic machine deadlift, Noe et al. (1992) found no differences in erector spinae muscle activity between two different bar speeds (45.7 vs. 30.5 cm / s).

Comparing two different velocities during an isokinetic machine deadlift test, Noe et al. (1992) found no differences in quadriceps muscle activity between the two speeds used (45.7 vs. 30.5 cm / s).

They noted that the peak in gluteus maximus muscle activity during the isokinetic lift occurred at 83 % of lift height, which was after the point at which peak force was produced at 67 % of lift height.

Comparing two different velocities during an isokinetic machine deadlift test, Noe et al. (1992) found no differences in latissimus dorsi muscle activity between the two speeds used (45.7 vs. 30.5 cm / s).

It is not immediately clear what factor is responsible for the differences in the findings between studies, as both isoinertial and isokinetic external loading and both eccentric - only and concentric - only muscle actions have led to significant increases in pennation angle.

Comparing two different velocities during an isokinetic machine deadlift test, Noe et al. (1992) found no differences in gluteus maximus muscle activity between the two speeds used (45.7 vs. 30.5 cm / s).

Comparing Olympic weightlifters and untrained control subjects during an isokinetic machine deadlift test, Noe et al. (1992) found no differences in latissimus dorsi muscle activity between the two groups.