l Pitching Motion A Biomechanical Analysis By Cole Stuerke amp Tucker Epp OBJECTIVE The objective of pitching is to throw the ball within a virtual zone called the strike zone and to prevent the batter from hitting the ball into the field of play and getting on base ID: 241326
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Slide1
Baseball Pitching Motion
A Biomechanical Analysis
By: Cole Stuerke & Tucker
EppSlide2
OBJECTIVEThe objective of pitching is to throw the ball within a virtual zone called the strike zone, and to prevent the batter from hitting the ball into the field of play and getting on base. Slide3
the 4 phases of pitchingWind-up Early & Late Cocking (Stride) Acceleration
Deceleration (Follow Through)Slide4
wind-up
Pitch selection and location are determined
Relatively low muscle activity
Frontal & Sagittal Planes
Common Errors:
Poor balance
Premature forward movement
Posterior COGSlide5
early & late cocking (stride)Initiated at maximum lead knee heightCOG lowered and a
ccelerated toward home plate
Muscles used: gluteus maximus, hamstrings, quadriceps, deltoid
Frontal & Transverse Planes
Common Errors:
Stride direction
Stride lengthSlide6
Early & Late cocking cont’dSlide7
VideoSlide8
acceleration
Initiated at maximum external rotation (MER)
Transverse
& Sagittal Planes
Muscles:
latissimus
dorsi
,
pectoralis
major
Elbow extension, shoulder internal rotation, wrist flexion & pronation, knee extension
Ends
at ball
releaseSlide9
deceleration (follow through)
Sagittal and Transverse Planes
Back
foot off ground
Pitcher
assumes fielding position
Bicep
reaches peak eccentric muscular activity
Ends with maximal dominant shoulder internal rotationSlide10
Considerations Competition LevelProfessional vs. Amateur
Types of Pitches
Pitch velocity & movement
Slider, fastball, curveball, etc.Slide11
SummaryComplex interaction of body segment movementsIncludes many muscle groupsHigh injury risk due to repetitive nature
Four Phases:
Wind-up
Early & Late Cocking
Acceleration
Deceleration Slide12
referencesCalabrese, G. J. (2013). Pitching mechanics, revisited. International Journal of Sports Physical Therapy, 8
(5), 652-660. Retrieved from
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3811736
/
Seroyer
, S. T.,
Nho
, S. J., & Romeo, A. A. (2010). The kinetic chain in overhand pitching.
Sports Health
,
2
(2), 135-146. Retrieved from
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3445080
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Whiteley
, R. (2007). Baseball throwing mechanics as they relate to pathology and performance - a review.
Journal of Sports Science & Medicine
,
6
(1), 1-20. Retrieved from
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3778685
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Fortenbaugh
, D.,
Fleisig
, G. S., & Andrews, J. R. (2009). Baseball pitching biomechanics in relation to injury risk and performance.
Sports Health
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1
(4), 314-320. Retrieved from
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3445126
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