oblique and vastus lateralis activity during a double-leg semisquat with or without hip adduction in patients with patellofemoral pain syndrome.
(2018) maximus Activity EMG of the rectus femoris (RF), vastus medialis
(VM), vastus lateralis Not (VL), gluteus cia et al.
INT: intact rats; [SCI.sub.1m]: rats 1 month after spinal cord transection; [SCI.sub.4m]: rats 4 months after spinal cord transection; [SCI.sub.TR]: rats 4 months after spinal cord transection with a graft; TA: tibialis anterior muscle; GM: gastrocnemius muscle; ECM: extensor caudae medialis
Proprioceptive acuity predicts muscle co-contraction of the tibialis anterior and gastrocnemius medialis
in older adults' dynamic postural control.
An MRI scan of the right thigh, however, revealed extensive periosteal and bone marrow edema, multilocular small periosteal-based fluid-collections throughout the femoral shaft, and extensive edematous changes in the soft tissues of the thigh, predominantly in the vastus medialis
and biceps femoris muscles (Figure 1).
After shaving and cleaning the skin of the patient with cotton and 70% alcohol, 1 cm disc shaped bipolar surface electrodes (Ag AgCl-1 surface with foam and solid gel) connected to the preamps in center-to-center interelectrode distance of 2 cm (Malek et al., 2006; Espindula et al., 2012) were placed on the following left lower limb muscles: Gluteus Medius, Tensor Fasciae Latae, Rectus Femoris, Vastus medialis
, Vastus lateralis, Biceps Femoris, Tibialis Anterior and Gastrocnemius (Lateral Subdivision), and the reference electrode was placed on the left lateral malleolus.
The BioVision 8 channel sEMG device with sampling frequency of 1000 Hz was used to record the activities of seven leg muscles: tibialis anterior, gastrocnemius, soleus, vastus medialis
, rectus femoris, gluteus maximus, and biceps femoris.
Hip abductors Gluteus medius Gluteus minimus Tensor fascia latae Hip adductors Adductor brevis Adductor longus Adductor magnus Gracilis Hip flexors Ileopsoas Rectus femoris Sartorius Hip extensors Bicep femoris long head Gluteus maximus Semimembranosus Semitendinosus Knee extensors Rectus femoris Vastus Intermedius Vastus lateralis Vastus medialis
Knee flexors Biceps femoris long head Biceps femoris short head Semimembranosus Semitendinosus TABLE 3: Moment arm range (minimum-maximum) across a physiological range of motion for each of the studied muscle bundles in the model and corresponding published values.
Zielinski considers these symptoms of a psychopathia medialis
, which covers up the complexity of every media-historical situation and event.
Muscle recruitment pattern for vastus medialis
oblique muscle: a systematic review
Repeat as above, with the addition of turning your foot and knee outwards slightly to engage the vastus medialis
(part of the quadricep muscle of the thigh).
 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.