Biomechanics of Human Movement
Balance, Follow Through, Leverage (levers)
Torque, and Weight Transfer
Balance
Definition:
• Ability to stay in a point of nothingness with no outward tension
Examples:
• Defensive stance
• Medicine ball push ups.
Pictures of Balance
• Erectors, quads, and abs are used
for balance
Follow Through
Definition:
• The completion of a form of movement that results in relaxation
Examples:
• Golf club ends up over the shoulder
• Tennis racquet ends up past the body
Images of Follow Through
• Muscles used (in golf) include quadriceps,
hamstrings, abductors, adductors, obliques,
gluteus maximus, latissimus dorsi, trapezius,
pectorals, deltoids, triceps and biceps. That’s
a LOT of muscles!
Leverage (Levers)
Definitions:
• The exertion of force by means of a lever
• A device you apply force to
Example:
• Bicep curl
Pictures of Leverage
• In torque, muscles act as
effort forces to move loads.
Torque
Definition:
• A twisting force that often causes rotation
Example:
• Twisting Oblique Crunch
Pictures of Torque
• Trapezius, deltoids, abdominals,
pectorals, and Latissimus Dorsi
are used in torque.
Weight Transfer
Definition:
• Stepping power
• The ability to shift weight from one point to another.
Example:
• Throwing
Pictures of Weight Transfer
• Weight transfer works with
the quadriceps, latissimus
dorsi, and trapezius.
Bibliography
• http://www.brucebucks.com/wp-content/uploads/2011/06/balance.jpg
• http://www.dietpsyche.com/wpcontent/uploads/2010/01/balance_yoga.jpg
• http://2.bp.blogspot.com/_yf1uL7B9y5o/Rx3zopDkvRI/AAAAAAAA
BDA/wUqOnr6ksxs/s400/barehands.jpg
• http://www.podiatry.com/images/eZines/FootChain/14/img2.jpg
• http://1.bp.blogspot.com/-alvBhhj8Q8/TauG1jb7bGI/AAAAAAAAAFE/8JW7RH3yaVc/s1600/Torq
ueSystem-FullFront.png
• http://www.sportsclipart.com/sports_clipart/young_man_throwing_a_f
ootball_probably_a_quarterback_0515-0911-0223-2250_SMU.jpg