20 minute AMRAP
The Long Slog
Steady engine · Aerobic Matrix · intensity 2 of 5
The workout
As many rounds as possible in 20 minutes of:
- 10 Hand-Release Push-ups
- 20 Walking Lunges
- 15 Butterfly Sit-ups
- 30 Mountain Climbers
Overview
The Long Slog is 10 hand-release push-ups, 20 walking lunges, 15 butterfly sit-ups, and 30 mountain climbers. The walking lunges and the hand-release push-ups trade the quads and the chest. 30 mountain climbers is the long piece, and it keeps the legs in the work, so the quads do not get a rest before the next round.
Muscles worked
Chest
Full body
Glutes
Walking Lunges
Midline
Quads
Walking Lunges
Energy systems
These are overlapping contributions. This workout is not assigned to one energy system.
- Glycolytic: Low
- Oxidative: High
- Neuromuscular: Low
Training effect
Immediate demand
20 minutes, intensity 2 of 5. Today the limiter is the mountain climbers.
Intended stimulus
The style is built so four movements keep you moving for the full clock. On this workout that is 10 hand-release push-ups, 20 walking lunges, 15 butterfly sit-ups, and 30 mountain climbers.
Repeated practice
Repeat the same workout and compare the score. What can change over weeks is how long that pace lasts. One time through does not produce that change.
Body-composition context
Body weight changes with the rest of how you eat and train. This workout is one piece of work on one day.
Expected feel
30 mountain climbers is where the round gets hard. The other movements still have to be finished after it.
Pacing
Constant forward-and-back motion. Pace the hand-release push-ups from round one.
Keep the later rounds moving at the same size as the early ones. Do not drop the mountain climbers to keep the other sets moving.
The movements
Hand-Release Push-ups
This enforces a dead-stop and prevents cheating the depth. Use this variation to humble users who claim they can do 50 push-ups unbroken.
What not to do. Resting the whole body on the floor instead of releasing and pressing straight away.
Walking Lunges
Keep your torso vertical. If you lean forward over your front knee as you walk, you are putting massive shear force on the patella.
What not to do. Pausing to gather balance between steps, which breaks the forward rhythm.
Butterfly Sit-ups
The butterfly leg position mechanically disables the hip flexors, forcing pure abdominal contraction. Do not use your arms to swing forward.
What not to do. Letting the knees rise off the floor to help the torso up.
Mountain Climbers
Keep your shoulders stacked directly over your wrists. If you drift backward, you lose leverage and the movement slows down completely.
What not to do. Landing the driving foot short, so the knee never gets near the chest.
Why these movements
The walking lunges and the hand-release push-ups trade the quads and the chest. 30 mountain climbers is the long piece, and it keeps the legs in the work, so the quads do not get a rest before the next round.
Scaling
Keep all four movements in the round. Drop reps so the round stays continuous.
Hand-Release Push-ups
- Hands elevated. Hands on a bench, chair or step. The higher the surface, the easier the rep.
- From the knees. Knees down, hips in line with the shoulders — do not let the hips pike up.
- Partial range. Lower as far as you can control and press back. Depth grows as you do.
Walking Lunges
- Hold a support. One hand on a wall or chair for balance. The legs still do the work.
- Shorter range. Drop only as far as you can stand back up from without pushing off your hands.
Butterfly Sit-ups
- Knees bent. Bend the knees to shorten the lever. The shorter it is, the lighter it is.
- Partial range. Move only through the range where you can keep the lower back on the floor.
Mountain Climbers
- Low impact. Keep one foot down throughout — march the pattern instead of running it.
- Slower cadence. Same movement, fewer beats per minute. Cadence is the dial, not the shape.
Mistakes and who it is for
- Opening the hand-release push-ups at a sprint makes the mountain climbers the piece that falls apart.
- Resting until you feel fresh between movements removes the point of keeping them in one round.
- Spending the first minutes hard leaves the later rounds as a different, slower workout.
Suited to someone who wants 20 minutes through Hand-Release Push-ups, Walking Lunges, Butterfly Sit-ups, Mountain Climbers.
Scoring and progression
Work through the movements in the order listed, then start the next round. Your score is the number of complete rounds plus any reps of the round you were partway through when the clock hit zero — written as rounds plus reps, so seven full rounds and twelve reps is7+12.
Progression is repeating this workout and comparing that score. The page does not promise a change from one time through.
Related workouts
- The Endurance Engine
Same chest and quads, same clock
- The Four Horsemen
Same chest and quads, same clock
- The Horizon
Same chest and quads, same clock
Run it with friends
The Long Slog runs on a shared countdown: share a rally link, everyone gets the same 20-minute clock, and the leaderboard updates as people log rounds.