TUT

Definition

Time Under Tension—how long your muscles actually work. Slow and controlled beats bouncing weight like you're at a rave.

Example Usage

I'm aiming for 40-60 seconds of TUT per set for hypertrophy.

Origin

Exercise science measurement, popularized in resistance training research

Fun Fact

3-4 seconds per rep (eccentric-concentric) for 10-12 reps hits the hypertrophy sweet spot

Source: Exercise Physiology research

Related Terms

Beginner

warmup sets

The lighter exercises before the real workout that gym bros skip and then wonder why they're injured. They're basically your body's polite request to not immediately destroy your muscles.

⚽ Sports / Fitness

Advanced

blood lactate

A metabolite produced during high-intensity exercise when your body can't supply oxygen fast enough for purely aerobic metabolism. Despite being blamed for muscle burn, it's actually more like a witness at the crime scene than the criminal.

⚽ Sports / Fitness

Beginner

form check

The act of recording your exercise technique for critical analysis, or posting it online where internet strangers will gleefully enumerate your biomechanical sins with varying degrees of accuracy.

⚽ Sports / Fitness

Intermediate

CrossFit

A fitness program that combines weightlifting, cardio, and the uncontrollable urge to tell everyone you do CrossFit. The first rule of CrossFit is that you always talk about CrossFit. The second rule is also that you always talk about CrossFit.

⚽ Sports / Fitness

Intermediate

peri-workout nutrition

The strategic timing of nutrients around your training session, encompassing pre-, intra-, and post-workout eating. It's the art of treating your body like a race car that needs precisely timed fuel stops, except you're probably just jogging.

⚽ Sports / Fitness

Intermediate

stim-free

Pre-workout supplements without stimulants like caffeine, for people who want focus without the jitters, heart palpitations, or 3 AM wakefulness. Decaf for gym rats.

⚽ Sports / Fitness

Translate This Term

See “TUT” in Corporate Speak, Gen-Z Slang, Pirate Speak, and more.

Try the Translator

Share This Term

Post on X Share on Facebook Share on LinkedIn

Discover a Term

Advanced

transfer pricing

The prices charged between subsidiaries of the same multinational corporation for goods or services, theoretically based...