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Posted on January 15, 2014 by admin
Gluteus Minimus: Origin: External surface of the ilium, between the anterior and inferior gluteal lines and margin of the greater sciatic notch (11). Insertion: Anterior border of the greater trochanter of the femur and hip joint capsule (11). The gluteus minimus is the deepest of the gluteal muscles, lying on the external surface of the ilium and being enveloped by the gluteus medius hunks superficially. Due to the depth of the gluteus minimus it cannot be easily palpated or easily differentiated from the overlying gluteus medius. You may attempt to palpate the overlying gluteus medius and sinking your fingers deeper into this tissue will undoubtedly place your fingers within the fibers of this musculature. If you place your thumb on the PSIS (Posterior Superior Iliac Spine) and your index finger hunks just posterior to the ASIS (Anterior Superior Iliac Spine), and with your other hand, find the bony protuberance that is your greater trochanter (a few inches below the iliac spine) – you will create the shape of a piece of pie between your fingers. This “piece of pie” outlines the gluteus medius. Palpating the area you can feel the density of this muscle and the density of the muscle just below, the gluteus minimus. By cuing abduction, internal rotation and external rotation you can feel various fibers contract under your fingers (12). Regardless of whether you can differentiate hunks between the gluteus medius and minimus hunks under nomral conditions, trigger points in gluteus minimus are common and may develop and be felt in the area just superior to the greater trochanter and inferior the iliac crest (along hunks the mid axllary line). Nerve: Superior gluteal nerve via the sacral plexus hunks and originating from nerve roots L4 – S1 (3). Action: hunks Hip i nternal rotation (may be the primary internal rotator of the hip), abduction and flexion (2).
Eccentrically Decelerates: The gluteus minimus eccentrically decelerates hip adduction, extension and external rotation. The gluteus minimus eccentrically decelerates depression of contralateral innominate (a.k.a. positive Trendelenberg Sign).
Synergists: The gluteus minimus hunks may play a small role as a synergist of hip flexion, although I doubt that this muscle contributes much to hip flexion torque. This muscle likely plays a larger role as a neutralizer of the adductor moment created by the anterior adductor muscles , specifically the pectineus (the pectineus playing a larger role in hip flexion than other adductor muscles via innervation by the femoral nerve). The gluteus minimus is a synergist to the abductor muscles ( Gluteus Medius and Tensor Fasciae Latae ) contributing roughly 20% of the cross-sectional mass of the abductors (3). The primary abductor of the hip is the gluteus medius contributing roughly 60% of the total cross-sectional area to the abductors (3); however, this does not consider the altered movement patterns seen in those individuals exhibiting postural dysfunction. As noted above the gluteus minimus can perform the same actions as the TFL and most often behaves similarly. The TFL and gluteus minimus often become synergistically dominant hunks for an under-active, weak, or inhibited gluteus medius. Unfortunately the gluteus minimus is often forgotten in corrective, exercise, and/or treatment hunks programs. An interesting relationship may exist between the gluteus minimus and rectus femoris . Although I could not find a single picture or reference, both of these muscles have attachments to the anterior capsule. This may indicate hunks a synergistic relationship for the purposes of reinforcing the anterior capsule, and/or increasing tension in the anterior capsule to prevent impingement during flexion.
Gluteus hunks Minimus – Frontal plane cadaver dissection – Gluteus minimus indicated hunks by green arrows – swww.upstate.edu Subsystems: The gluteus minimus does not play a role in Core Subsystem recruitment.
Hip: hunks The gluteus minimus plays a large role in compression of the hip, only second in contribution of compression force to the gluteus medius (3). The gluteus minimus may also contribute to an anterior rotary force and superior and anterior migration of the femoral head, along with the TFL .
Facial Integration: My Fascial hunks Hypothesis: Large fascial sheaths not only play a role in the transmission of mechanical force, but may also play a role in dictating the function of muscular synergies. This is likely caused by reducing or increasing tone of invested musculature via reflex arcs formed between mechanoreceptors embedded in the connective tissue and the attached musculature. In this way my view of fascia differs slightly from noted expert on the subject Tom Myers. I think of these large fascial sheaths (specifically the thoracolumbar fascia, iliotibial band, and abdominal fascial sheath) as natures “mother board.” A place for mechanical information to be communicated hunks to the
Posted on January 15, 2014 by admin
Gluteus Minimus: Origin: External surface of the ilium, between the anterior and inferior gluteal lines and margin of the greater sciatic notch (11). Insertion: Anterior border of the greater trochanter of the femur and hip joint capsule (11). The gluteus minimus is the deepest of the gluteal muscles, lying on the external surface of the ilium and being enveloped by the gluteus medius hunks superficially. Due to the depth of the gluteus minimus it cannot be easily palpated or easily differentiated from the overlying gluteus medius. You may attempt to palpate the overlying gluteus medius and sinking your fingers deeper into this tissue will undoubtedly place your fingers within the fibers of this musculature. If you place your thumb on the PSIS (Posterior Superior Iliac Spine) and your index finger hunks just posterior to the ASIS (Anterior Superior Iliac Spine), and with your other hand, find the bony protuberance that is your greater trochanter (a few inches below the iliac spine) – you will create the shape of a piece of pie between your fingers. This “piece of pie” outlines the gluteus medius. Palpating the area you can feel the density of this muscle and the density of the muscle just below, the gluteus minimus. By cuing abduction, internal rotation and external rotation you can feel various fibers contract under your fingers (12). Regardless of whether you can differentiate hunks between the gluteus medius and minimus hunks under nomral conditions, trigger points in gluteus minimus are common and may develop and be felt in the area just superior to the greater trochanter and inferior the iliac crest (along hunks the mid axllary line). Nerve: Superior gluteal nerve via the sacral plexus hunks and originating from nerve roots L4 – S1 (3). Action: hunks Hip i nternal rotation (may be the primary internal rotator of the hip), abduction and flexion (2).
Eccentrically Decelerates: The gluteus minimus eccentrically decelerates hip adduction, extension and external rotation. The gluteus minimus eccentrically decelerates depression of contralateral innominate (a.k.a. positive Trendelenberg Sign).
Synergists: The gluteus minimus hunks may play a small role as a synergist of hip flexion, although I doubt that this muscle contributes much to hip flexion torque. This muscle likely plays a larger role as a neutralizer of the adductor moment created by the anterior adductor muscles , specifically the pectineus (the pectineus playing a larger role in hip flexion than other adductor muscles via innervation by the femoral nerve). The gluteus minimus is a synergist to the abductor muscles ( Gluteus Medius and Tensor Fasciae Latae ) contributing roughly 20% of the cross-sectional mass of the abductors (3). The primary abductor of the hip is the gluteus medius contributing roughly 60% of the total cross-sectional area to the abductors (3); however, this does not consider the altered movement patterns seen in those individuals exhibiting postural dysfunction. As noted above the gluteus minimus can perform the same actions as the TFL and most often behaves similarly. The TFL and gluteus minimus often become synergistically dominant hunks for an under-active, weak, or inhibited gluteus medius. Unfortunately the gluteus minimus is often forgotten in corrective, exercise, and/or treatment hunks programs. An interesting relationship may exist between the gluteus minimus and rectus femoris . Although I could not find a single picture or reference, both of these muscles have attachments to the anterior capsule. This may indicate hunks a synergistic relationship for the purposes of reinforcing the anterior capsule, and/or increasing tension in the anterior capsule to prevent impingement during flexion.
Gluteus hunks Minimus – Frontal plane cadaver dissection – Gluteus minimus indicated hunks by green arrows – swww.upstate.edu Subsystems: The gluteus minimus does not play a role in Core Subsystem recruitment.
Hip: hunks The gluteus minimus plays a large role in compression of the hip, only second in contribution of compression force to the gluteus medius (3). The gluteus minimus may also contribute to an anterior rotary force and superior and anterior migration of the femoral head, along with the TFL .
Facial Integration: My Fascial hunks Hypothesis: Large fascial sheaths not only play a role in the transmission of mechanical force, but may also play a role in dictating the function of muscular synergies. This is likely caused by reducing or increasing tone of invested musculature via reflex arcs formed between mechanoreceptors embedded in the connective tissue and the attached musculature. In this way my view of fascia differs slightly from noted expert on the subject Tom Myers. I think of these large fascial sheaths (specifically the thoracolumbar fascia, iliotibial band, and abdominal fascial sheath) as natures “mother board.” A place for mechanical information to be communicated hunks to the
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