Power Endurance
4x4s
32 min
Load score 80

Climb 4 boulders back-to-back with little to no rest between problems, then rest before repeating for multiple sets.
Intent: Develop aerobic power through high-end efforts with limited rest, using varied boulder movement to push sustained output.
Exercises

4x4s
Choose four boulder problems and repeat each four times back-to-back with minimal rest between repetitions. The problems should feel manageable for a single attempt but become near-maximal by the fourth rep. This builds significant pump and power endurance.
Try this workout in the app
Open in the Lattice Training app for guided timers, session logging, and progress tracking — install first, then tap “Open in app”.
Open in app