ONE SIDE AT A TIME.
Lunge challenge: up to 160 lunges.
Sixty, one hundred or one hundred and sixty lunges, alternating legs, as many sets as you need. Balance, patience and burning quads.

THE CHALLENGE
Lunges or split squats, alternating legs. Split them into as many sets as you need.
- LEVEL 160 lunges (30 per leg).
- LEVEL 2100 lunges (50 per leg).
- LEVEL 3160 lunges (80 per leg).
WHY IT'S HARD
Unilateral control makes the workload substantive without a speed contest.
DO IT RIGHT
Controlled form on every rep. Rest as needed between sets. Stop for pain, dizziness or illness; an unfinished day is fine. Scale the movement, never the honesty.
HOW IT WORKS ON HARD.
Everyone gets the same challenge on the same day. Say I'M IN, take as long as it takes, then say I DID IT on your word. Your friends see you show up.
ON THE RECORD
IT COMES BACK. NOBODY KNOWS WHEN.