Record actual time under tension for isometric holds on Garmin
Programming a 45-second hold does not mean you completed 45 seconds. Record when form breaks, then compare the work you actually performed across sessions and sides.
Target time and actual TUT are different numbers
A generic timer reaches zero whether you maintain position or stop early. For dead hangs, planks, wall sits and grip holds, the honest training record is the duration completed with the intended form.
Isometric Hold Lab starts with a target but lets you end the hold manually when form breaks. The session summary uses that actual duration instead of awarding the planned time.
What a structured hold session needs
- A preparation countdown so the timer does not start before you are in position.
- Work, side-switch and round-rest phases that stay distinct.
- Manual early finish for accurate TUT.
- Total, left and right TUT plus adherence and best hold.
The app provides dead hang, plank, wall sit, side plank and grip presets plus a configurable custom protocol. Bilateral sessions keep left and right work separate and show the resulting asymmetry.
How to use asymmetry without overreading it
A one-session difference can come from order, grip, fatigue or a mistaken tap. Treat the left/right comparison as a repeatable observation, not a diagnosis. Keep the protocol and starting side consistent, watch the trend over several sessions, and ask a qualified professional about pain or persistent large differences.
Isometric Hold Lab
Free actual-TUT timer with six protocols, early finish, bilateral totals, adherence and local history.
Every protocol stays free
No subscription and no paid metrics. Optional support funds maintenance and new-device checks.