How does creatine support performance in circuit or interval training?

Short rest. High output. Repeat—creatine helps keep power on tap when the pace doesn’t let up.

Will creatine help with circuit training endurance or just strength?
Does creatine work for interval running, rowing, cycling, or mixed-modality workouts?
Do I need to take creatine right before my workout for it to work?
How long does it take to notice creatine in circuit or HIIT sessions?
Can creatine make me feel heavy during HIIT?
Is creatine only for advanced athletes?
What’s the simplest way to add creatine to a circuit or interval routine?