I Tried Jakob Ingebrigsten’s Toughest Training Day

Mark has tackled some wild challenges recently—running a full marathon in crocs, attempting a sub-4-minute mile (downhill), and even training like Alex Yee. But now, he’s pushing himself even further. ????

Mark takes on one of the toughest workouts out there: the legendary double-threshold session (aka "Norwegian Method") used by Olympic champion and world record holder Jakob Ingebrigtsen. This intense training session truly puts Mark to the test—will he conquer it or crumble? ????‍♂️????

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00:00 Taking on Jakob Ingebrigsten's workout
00:29 Who is Jakob Ingebrigsten and what's his training?
01:51 First session - On the treadmill
02:31 Lactate testing is key
03:25 The lactate threshold reps underway
07:14 What is the Norwegian Method?
08:42 The track workout
11:20 First set completed
11:47 Start of the second set
14:00 Conclusion and thoughts of the Norwegian Method
16:10 Using lactate measurements

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Would you ever try a double threshold session? ????

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