When he hefts a corpse, we watch the lifter rather than the load.
If there is a tie, it goes to the lifter who weighs less.
Expansion or contraction of the valve linkage is compensated by oil seepage from the lifter to correct for expansion of parts and oil flow into the chamber if clearance tends to be produced between the pushrod and the lifter.
For the snatch, the lifter squats and stands explosively, accelerating the bar overhead, then drops back down into a squat.
And the high concentration of muscle mass puts stress on the body, as if the lifter were obese.
Many automakers have abandoned once-common bucket-type valve lifters, an arrangement where the lifter is pressed directly by the cam lobe rather than a rocker arm.
By comparison, the lifter is a somewhat awkward thing to use, which is often the case when you replace a human with a machine.
In both lifts, the lifter must complete the lift with feet in line, body erect, arms and legs extended, and the barbell in control overhead.
The guy who demonstrated the lifter for me didn't use it until I asked him to show me how it worked.
For the clean-and-jerk, the lifter squats, lifts the bar to the clavicle, then jumps into a lunge while thrusting the bar up.
The two-handed dead lift, in which the lifter raises the weight from the floor to hip level in one movement, displays overall back and gripping power.
