ExRx.net > Kinesiology > Articulations > Joint
Bending the joint resulting in a decrease of angle; bringing forearm toward upper arm.
Straightening the joint resulting in an increase of angle; bringing forearm away from upper arm.
Also see Forearm. Mentioned articulations occur during concentric phase of exercise video examples.
Westside Barbell Program
Periodization for Weight Training
Weightlifting Program for Athletes
Calculating Actual Resistance
Toning with Weights
"Russian" Squat Program Generator