Jakob raises Mark's heart rate

Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.

Jakob decides to use exercise to raise Mark’s heart rate, and leaves to find something heavy for Mark to lift. He soon comes back with a heavy rock, and has Mark do several reps raising it above his head. Jakob manages to raise Mark’s heart rate by 65 beats; he earns second place.

(Written by Jenny R and proofread by Karl Craven)