The effect of patellar taping on the onset of vastus medialis
obliquus and vastus lateralis muscle activity in persons with patellofemoral pain.
Kinesiotaping was applied to Group 1 with vastus medialis
obliquus facilitation and patellar functional correction (Figure 1).
The confirmed causes of PF instability are: improper position of bone structures of lower extremity (patella alta, trochlear or patellar dysplasia, misalignment of the leg, rotational deformities of femur and tibia), as well as soft tissue disorders (atrophy of vastus medialis
obliquus muscle, medial retinaculum laxity, overtightened lateral retinaculum and MPFL injury) [5, 6, 12, 14].
showed significant difference in muscle activation between sessions at T3 (p = 0.
The electrodes were placed on the long head biceps femoris, vastus lateralis and vastus medialis
following EMG for non-invasive assessment of muscle recommendations (Hermens, 2000).
Rehabilitation protocols aim to promote the balance between the portions of the quadriceps muscle, by selective strengthening of the Vastus Medialis
Oblique (VMO), however, there is no consensus in the literature regarding the best way to recruit the VMO.
The medial parapatellar approach lacks an internervous plane but utilizes an intermuscular plane between the vastus medialis
obliquus (VMO) and rectus femoris (Table 1).
The vastus lateralis (VL) and vastus medialis
(VM) are among the most commonly studied muscles in kinesiology.
19] Potential contributing factors that have been studied are vastus medialis
oblique insufficiency, decreased quadriceps, hamstrings, and ilitibial band flexibility, femoral anteversion, increased quadriceps angle, and patellar hypermobility.
McBride, Cormie, and Deane (8) reported greater EMG activity in the vastus lateralis and the vastus medialis
during the isometric free squat on two balance disks with similar muscle activation for the biceps femoris and medial head of the gastrocnemius.
9-10) Abnormal vastus medialis
oblique/vastus lateralis reflex timing has also been considered; however this is proving to be less significant than first theorized according to recent systematic reviews.
Soft tissue abnormalities, such as generalized ligamentous laxity, torn medial patellofemoral ligament, or a weakened vastus medialis
obliquus, may cause or result in instability.