Time Under Tension

The ISO-MR protocol achieved longer median total squat hold time than the ISO-SR protocol. Time under tension was recorded to verify intervention dose fidelity and separation between exercise groups. A hold of a five-count is given as an example duration for the pause at the top of each row. Participants reached volitional fatigue well before the intended 3-minute wall squat ceiling. Adding a pause at the top of each row increases time under tension, making the exercise harder. Greater achieved TUT was associated with larger hypoalgesic responses, especially in ISO-MR. The article suggests longer TUT may be required for global hypoalgesic effects.