The pH of biceps femoris
muscle was measured in triplicates following the procedure of Bendall (1973) using a portable pH meter (Sentron Argus-X, Roden, Netherland).
The common peroneal nerve (CPN) continues along the medial margin of the biceps femoris
, towards the posterior fibular head.
Abbreviations: BF = biceps femoris
, BWS = body weight support, EMG = electromyography, MG = medial gastrocnemius, RF = rectus femoris, TA = tibialis anterior.
During one drop jump we calculated EMG of vastus lateralis, biceps femoris
, and peak values of hip, knee and ankle angles.
The surface EMG (Noraxon Telemyo 2400T V2, Scottsdale, AZ) was recorded from the rectus femoris, vastus medialis, vastus lateralis, semitendinousus and biceps femoris
muscles of the dominant leg.
The specific purpose was to observe for EMG analysis if the rectus femoris, vastus lateralis and medialis, biceps femoris
, semitendinosus and brachial biceps muscles have different patterns when submitted to weights of 2, 4, 6, and 8 kgs.
The iliotibial band (ITB) is a wide, flat ligament-like structure that runs down the side of the thigh from the side of the iliac crest (hip) to the patella (knee cap), tibia (shin bone) and biceps femoris
tendon (part of the hamstrings).
03) was used to manually outline the quadriceps [rectus femoris (RF), the vasti (vastus lateralis, vastus intermedius, and vastus medialis)], hamstrings (semitendinosis, semimembranosis, biceps femoris
long head and short head) and the adductors (adductors longus, brevis, and magnus).
The short head of biceps femoris
, overlaid and fused with the long head of biceps femoris
, forms the lateral border (Figure 3).
The hamstrings are made up of three muscles: semitendinosus, semimembranosus, and biceps femoris
Computed tomographic scans and magnetic resonance imaging demonstrated a large mass involving the biceps femoris
, medially compressing the femoral vessels (Figure 1).
Electromyography (EMG) electrodes simultaneously analyzed muscle activation of the gluteus maximus (butt), biceps femoris
(rear thigh) and vastus lateralis (front thigh) for 15 seconds at the end of each 5-minute stage.
Differently, during resisting at the leg-press machine, the quadriceps contracts eccentrically, whereas the biceps femoris
contracts mildly concentrically--to allow movement precision.
INJURIES Messi's worst injury: A broken foot which sidelined him for three months (although a torn biceps femoris
forced him to miss the 2006 Champions league final and the opening match of the World Cup).
Needle electromyography (EMG) showed marked denervation potentials and a reduced recruitment pattern especially in the right tibialis anterior, peroneus longus and biceps femoris