Chapter 11: Olympic lifting for performance enhancement Flashcards
Concept of specificity
first put forth by DeLorme in 1945
10 variables when considering the idea of specificity
velocity of movement force of contraction muscle fiber recruitment movement pattern muscle contraction type region of movement metabolism biomechanical adaptation flexibility fatigue
7 independent qualities contribute to an athletes power capacity
max strength high load speed strength low-load speed strength rate of force production reactive strength skill performance power endurance
simulation training
mimicking the specific sport skill that may be resisted lightly with bands, tubes, or weights so as not to interrupt the neurological movement pattern
highest power output of any resistance training exercise
second pull phase of snatch and power snatch
these two alone will increase velocity of movement, high load speed strength, rate of force development while max strength can be enhance by squats, clean deadlifts and snatch deadlifts
max strength
max strength is therefore the greatest amount of force gnereated, typically measure during a 1RM
reactive strength
a ready to response stimulus that would be the necessary strength in response to some sort of stimulus, be it physical, visual, auditory, etc
power endurance
athlete’s ability to sustain high power output for an extended period of time. athletes with exceptional power endurance might be 400-m sprinters, 400m hurdlers, individual medley swimmers, or wrestlers, for example
according to force velocity curve
highest forces are generated at slow contraction velocities. when converted to power, these motions are at lower power output due to the longer duration of time necessary to execute the movement
rate of force development
time from the stimulus to reach the required force
UAP. Universal Athletic Position
most common position in sports. static starting postion in football and baseball
standing one quarter squat with feet flat, weight on the balls of the feet, hips back, knees over the toes, shoulders over the knees and a netural spine
to exhibit explosive power
athelte must avoid movement of the spine, spine must be neutral and stable to generate max power through the hips, knees, and ankles
neural spine
posture in which no exaggeration of any of the normal curvatures of the spine is present
hip hinge
concept of the hip hinge can be described as the spine remaining stiff and neutral while movement ofccurs about the hip joint
max ankle dorsi flexion
20 degrees
max knee flexion
135 degrees
max hip flexion
120 degrees
stability cue important prior to lifting
scapular retraction- enhances global stabilization of the spine and a local stabilization of the gleno humeral joint
3 torso stability cues
pelvic floor, obliques, scapular retraction
perturbation
disturbance in motion that increases the chance of a breakdown in the HMS
hooking
where the index and middle finger squeeze down on the thumb
Snatch-First pull phase
occurs when the knees extend adn the barbell is lifted from the floor to knee height
Snatch-shift or scoop
in this transitional phase the BB is elevated from the knees to ana rea between the mid-thigh and pubic bone, depending upon the relative limb and torso segment lengths
Snatch-top pull
phase begins with a violent extension of the hips, knees, and ankles(hence triple extension) that help drive the bar upward and slightly forward off the upper thigh or pubic area
