Dynamic Constant External Resistance (DCER) refers to:

Dynamic Constant External Resistance (DCER) is a term that specifically pertains to resistance training methods where the resistance used for exercises remains constant despite changes in muscle length and movement dynamics during the exercise. This form of training typically involves weights or resistance bands where the load does not change during the execution of the movement.

In the context of resistance training, exercises such as squats with a barbell or bench presses highlight the principle of DCER, as the lifter works against a consistent weight throughout the range of motion, which enhances strength and muscle hypertrophy.

Body weight exercises, plyometric training, and aerobic exercises, while valuable and effective forms of fitness, do not align with the concept of DCER. Body weight exercises can vary significantly in difficulty and load; plyometric training emphasizes explosive movements that do not adhere to constant resistance principles; and aerobic exercise primarily focuses on cardiovascular endurance rather than resistance. Thus, the correct understanding of DCER firmly roots it within the framework of resistance training, illustrating its significance for muscle engagement and strength development.