Biomechanics of Training and Testing by Jean-Benoit Morin & Pierre Samozino

Author:Jean-Benoit Morin & Pierre Samozino
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

(7.9)

(7.10)

(7.11)

where a a and a f are the position of the center of mass of the arm and the forearm relatively to the proximal joint, respectively. a a and a f were estimated from Winter’s table (Winter 2009).

Then, Z G is expressed as:

(7.12)

where m a and m f are the arm and forearm masses, respectively, determined from the Winter’s anthropometric tables (Winter 2009). Z G is twice derivated to calculate the acceleration of the combined center of mass acceleration .

Force calculations. The force F M produced at the shoulder during the bench press is then determined from the mechanical model (Fig. 7.7b) and expressed as:

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