14] Edema and fatty infiltration scores were calculated in the gluteus maximus and thigh muscles (vastus intermedius, vastus medialis, vastus lateralis
, rectus femoris, biceps femoris, semitendinosus, semimembranosus, adductor magnus, sartorius, long adductor, and gracilis).
2,3] As a consequence, contrary to common belief, [4,5] the force exerted by an almost equally atrophied vastus lateralis
may successfully counteract the lower force exerted on the patella by an atrophied vastus medialis.
1,3,4] Musculus vastus medialis obliquus (VMO) and vastus lateralis
are the most important dynamic forces having an effect on patella at the last 30 degrees of the knee extension.
Bipartite patella with an accessory ossification center at the superolateral pole, the insertion site of the vastus lateralis
, is a rare congenital anomaly.
Triode electrodes placed on vastus lateralis
(VL), gastrocnemius (GN), and gluteus maximus(GM) recorded muscle activity during squats.
The study revealed that polyphenol supplementation reduced interleukin-8 (IL-8) protein content in vastus lateralis
muscle tissue after damaging exercise, compared to placebo.
Proximal realignment includes release of tight lateral patellar retinaculum and vastus lateralis
completely and plication of medial capsule and patellar retinaculum to strengthen the lax medial structures.
A detailed description about the same EMG measurement protocol as in this study, including skin preparation, electrode placement over the muscles of the vastus lateralis
, rectus femoris, BF, and ST, signal amplification, storage in the microcomputer, and sampling of the analog EMG signal was published previously by Sekir 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.
With the patient in the left lateral recumbency, the femur was approached through the craniolateral portal with an incision in the fascia lata and caudal retraction of the biceps femoris muscle as well as cranial retraction of the vastus lateralis
There were significant increases in T2 signal intensity post-intervention for the gluteus maximus and throughout the muscle portion (proximal, medial, and distal) of the vastus lateralis
and rectus femoris.
Results: Isometric maximal peak torque of extension and root mean squared (RMS) of vastus lateralis
and medial hamstring in the healthy control was significantly higher than both patient groups.