Warming up for weight lifting is crucial to avoid injuries, making gains and performance. I use a two part warmup protocol before every weight lifting session, as should you!!
Part 1: General warmup, the purpose of the general warm-up is to increase body temperature, blood flow and loosen up tight muscles. I include my "lifting warmup flow" to achieve this in all my weight based workouts!
Part 2: Ramping up sets, this is one of the most powerful yet underused techniques to get the most out of every session. Let's use dumbbell bench press as an example, in the program it states 12/10/8/6 reps these will be your "working sets". So this means my first working set will be for 12 reps, second set 10 reps, third set 8 reps and fourth set 8 reps. Let's say I can do 50lbs dumbbells for 12 reps to ramp up I would do the following:
Ramp up sets:
30lbs for 12 reps
40lbs for 12 reps
Working sets:
50lbs for 12 reps
55lbs for 10 reps
60lbs for 8 reps
65lbs for 6 reps