The framework
The Tension In Making Each Second Count
- 01Time under tension, finally measured.Two lifters do '3×10 at 100 lbs.' One finishes in 90 seconds, one in 220. The integer in your set log can't see the difference. Time under tension can.
- 02Having the Impulse to Measure ThingsTim went 50 lbs; Thomas went 45. Tim popped it; Thomas held it. The bar weight says one of them lifted heavier — the math says the other one trained harder. Impulse is the area under the force–time curve, and it's the unit volume should have been measured in all along.