Whether you're training, looking for a good workout or just want to be prepared, knowing how to climb a rope while using as little energy as possible might be good to know. This video demonstrates a few techniques that US armed forces use.
The video, from ITS Tactical, explains the three most common techniques you'll come across. First is the "gym class" technique, which involves you pinching the rope between your feet but isn't ideal because it relies too heavily on your upper body strength. The Next two techniques are variations of the "brake and squat" style, which is faster and much more efficient in terms of energy use. This style has you create a small rope shelf for your weight to rest on and -- instead of pulling yourself up with your arms -- you squat and bring your legs up to you to create the next shelf. It's a great workout for your core and can also be a valuable skill depending on your lifestyle. You can read more about the techniques at the link below.