At the end of the swing phase, the hamstring muscle
undergoes an eccentric contraction and absorbs energy from the swing limb before foot contact [21,22].
In turn, this Ia interneuron synapses with motor neurons of the opposing hamstring muscle
Firstly, the increased stiffness at high and at low speed perturbations was associated with increased EMG activity of the hamstring muscle
It's the same situation as with the hamstring muscle
. Do not allow the participants to hyperextend the knee, but make sure they extend it to a straight position.
Tables 3 and 4 represent the mean values for the normalized EMG amplitudes in the three groups during concentric and eccentric test modes at both velocities (60 and 240[degrees]/sec) for the hamstring muscle
(BF and ST) following antagonist quadriceps stretching intervention and for the quadriceps muscle (rectus femoris and vastus lateralis) following antagonist hamstring stretching intervention, respectively.
Outcomes were assessed before and after the interventions in both groups by comparing the Visual Analog Scale (VAS) score for pain, straight leg raise ROM test for hamstring muscle
flexibility, and isometric strength test for hamstring muscle
* Effect of dynamic stretching (DS) on hamstring muscle
flexibility was examined.
The long head is a part of the hamstring muscle
, one of the strongest muscles in the body used in running and kicking a ball.
Then, we collected the data basically in the following two steps: 1) indirect measurements of hamstring muscle
length (HML) and 2) isokinetic measurements for knee extensors.
Based on the above data, there is significant difference between the values of modified Thomas test which is done during pre- and post-test shows there is increase in length of iliopsoas muscle, after the intervention of CRAC, also there is significant difference between the values of Sit and Reach test which is done pre and post-test shows there is increased length of hamstring muscle
. The combined effect of the above two mechanisms has reduced the intensity of pain, in low back region, that has been reflected in the significant value exists between pre- and post-test values of VAS.
The second mechanism of injury occurs when the hamstring muscle
is stretched beyond its available range of motion or load tolerance.
In the prone position, an important contracture of the hamstring muscle
group was observed when compared to the contralateral side (Figure 2).