In a clinical trial, the group of participants that is not given the experimental intervention being studied. The control arm can receive an intervention that is considered effective (the standard), a placebo, or no intervention. Outcomes in the control arm are compared with those in the experimental arm to determine any differences, for example, i [..]

A suspension element that has one joint at one end and two joints at the other end, typically the chassis side. Also known as a wishbone or an A-arm.

One of the main components of the front suspension, the control arm connects the front wheel to the vehicle's chassis. In many cars, a ball joint is built into the control arm as one piece. In th [..]

The primary function of a control arm is to provide the connection point between the body of the vehicle and wheel. This allows the wheel to move up and down while the body frame and passengers stay s [..]

A hinged suspension link between the chassis and strut or wheel hub. A Double A-Arm suspension has upper and lower control arms. A control arm may also attach to a spring, damper, anti-roll bar and pu [..]

In automotive suspension, a control arm, also known as an A-arm, is a hinged suspension link between the chassis and the suspension upright or hub that carries the wheel. The inboard (chassis) end of [..]