To determine your training load, you must first determine your one rep maximum or 1RM.
Reasons for testing 1RM:
Determine training load.
Identify strength and weaknesses.
Helps keep tracks of your progress.
Beginners - Should start using 50 to 60 percent of their 1RM.
Experienced - Lifters can use 75 yo 85 percent of their 1RM
CONTRACTION - The shortening of a muscle.
EXTENTION - The stretching of a muscle.
Progressive resistance training (PRT) - is a type of exercise where participants exercise their muscles against some type of resistance that is progressively increased as their strength improves.