UNITS AND DEFINITIONS RELATED TO BIOMECHANICAL AND ELECTROMYOGRAPHICAL MEASUREMENTS - Biomechanics and Motor Control of Human Movement - page 361

APPENDIX B

UNITS AND DEFINITIONS
RELATED TO BIOMECHANICAL
AND ELECTROMYOGRAPHICAL
MEASUREMENTS

All units used are SI (Systeme International d'Unites). The system is based
on seven well-defined base units and two supplementary units. Only one
measurement unit is needed for any physical quantity, whether the quantity
is a base unit or a derived unit (which is the product and/or quotient of two
or more of the base units).

TABLE B.1 Base SI Units

Physical Quantity Symbol Name of SI Unit Symbol of Unit

Length l meter m

Mass m kilogram kg

Time t second s

Electric current I ampere A

Temperature T kelvin K

Amount of substance n mole mol

Luminous intensity I candela cd

Plane angle θ , φ , etc. radian rad

Solid angle steradian sr

TABLE B.2 Derived SI Units

Name of

Physical Quantity Symbol SI Unit Definition

s − 1 Velocity v m · Time rate of change of position.

s − 2

Acceleration a m · Time rate of change of velocity.

(continued)