When Lowering a Box from an Overhead Position, the Shoulder

question 1

Multiple Choice

When lowering a box from an overhead position, the shoulder flexors contract __________ and the elbow extensors contract _____________.

• A) concentrically; concentrically
• B) concentrically; eccentrically
• C) eccentrically; concentrically
• D) eccentrically; eccentrically

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Definitions:

Pyrans

A class of heterocyclic organic compounds characterized by a six-membered ring containing one oxygen atom and five carbon atoms.

Dimethyl Ether

A colorless gas used as a propellant, refrigerant, and solvent, composed of two methyl groups bonded to an oxygen atom.

3-Ethylfuran

A heterocyclic organic compound with the formula C6H8O, featuring a furan ring with an ethyl substituent.

4,4-Dimethylpyran

A six-membered oxygen-containing heterocycle with two methyl groups attached to the fourth carbon.