Ep.69 - Tonal vs. Isokinetic: Why We Refuse to Use Digital Weights

The FastFit® Podcast

Jul 17 2026 | 00:26:50

00:00 / 00:26:50

Show Notes

Part two with Jim Keen is all about the “digital weights” machines like Tonal that are everywhere right now. Jim explains why companies spend millions mimicking a barbell on a screen—and why that whole approach is fundamentally limited. The big takeaway: anytime you can select the resistance, it can’t match your real strength. It’s the clearest case yet for why we’re all in on isokinetics.

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