Workout Description
For Time
1,000 meter Burden Run (25 kg sandbag)
100 Push-Ups
100 Sit-Ups
100 Air Squats
100 Double-Unders
100 ft Rope Climbs (accumulate over multiple ascents)
1,000 meter Burden Run (25kg sandbag)
Why This Workout Is Very Hard
This workout combines two 1,000m sandbag runs (25kg) bookending 400 reps of mixed movements plus 100ft of rope climbs. The sandbag carries destroy grip and legs before the rope climbs, which are already a high-skill, high-demand movement. Cumulative fatigue across all elements is severe — multiple limiting factors (grip, lungs, legs, skill) hit simultaneously. Most average athletes will need significant scaling, particularly on rope climbs and the second run.
Benchmark Times for David F
- Elite: <22:00
- Advanced: 24:30-27:30
- Intermediate: 31:00-35:00
- Beginner: >66:00
Training Focus
This workout develops the following fitness attributes:
- Stamina (10/10): Hundreds of reps across push-ups, sit-ups, air squats, double-unders, plus rope climbs and loaded carries demand extraordinary muscular endurance. Upper body, core, and legs are all taxed to near-complete fatigue.
- Endurance (9/10): Two 1,000m weighted runs bookending high-volume calisthenics and rope climbs create sustained cardiovascular demand throughout. The sandbag load elevates heart rate significantly, making this a near-maximal aerobic test.
- Strength (5/10): The 25kg sandbag run adds meaningful load, and rope climbs require significant pulling strength. However, the volume negates maximal strength expression, shifting the demand toward strength-endurance rather than peak force production.
- Speed (4/10): For Time format incentivizes efficient pacing and fast transitions, but the extreme volume and loaded runs demand strategic pacing over sprinting. Cycling speed on double-unders and push-ups matters but is secondary to sustainability.
- Flexibility (3/10): Rope climbs require hip flexion and shoulder mobility; sit-ups demand lumbar and hip flexor range of motion. Overall mobility demands are moderate but not extreme compared to Olympic lifting or gymnastics-heavy workouts.
- Power (3/10): Double-unders require some explosive calf and wrist power, and rope climbs benefit from hip drive. However, the sheer volume and fatigue context eliminate true power expression, favoring grinding endurance instead.
Movements
- Sandbag Run
- Push-Up
- Air Squat
- Sit-Up
- Rope Climb
- Double-Under
Scaling Options
Sandbag weight: reduce to 15 kg for newer athletes or those under 70 kg bodyweight. Push-ups: scale to knee push-ups or elevate hands on a box; reduce to 75 reps if needed. Sit-ups: sub GHD sit-ups (reduce to 50) or AbMat sit-ups as written. Air squats: reduce to 75 reps or add a target box for depth cues. Double-unders: sub 200 single-unders or 50 double-under attempts; reduce to 75 reps if skill is limiting. Rope climbs: sub 5 rope climbs from seated (ground-to-standing pulls), or 15 strict ring rows per climb equivalent; reduce total footage to 60 ft (3-4 climbs) for developing athletes. Burden run: reduce distance to 600-800m per run, or sub a 1,000m row or 800m run without load.
Scaling Explanation
Scale this workout if you cannot complete at least 20 unbroken push-ups, cannot perform a rope climb with a foot lock, or if the Rx sandbag weight exceeds roughly 30-35% of your bodyweight. The goal is to finish in under 55 minutes while keeping movement quality intact — if you're projected to exceed 60-65 minutes, reduce volume or load rather than grinding through poor mechanics, especially on rope climbs where grip failure creates fall risk. Prioritize technique on rope climbs above all else — a controlled, efficient climb beats a fast, sloppy one every time. Newer athletes should treat this as a skills and endurance builder and scale aggressively to maintain consistent movement throughout.
Intended Stimulus
This is a long-duration grind workout targeting the 35-60 minute time domain. Expect a sustained, aerobic engine test with significant muscular endurance demands — think long steady effort with moments of higher intensity on the rope climbs and double-unders. The sandbag runs bookend the workout and serve as both a physical and mental anchor. The primary challenge is mental toughness and pacing discipline across a high-volume, multi-modal chipper. This workout builds resilience, grip endurance, and the ability to keep moving when fatigued.
Coach Insight
The two burden runs are your pacing governors — go out too hot on the first 1,000m and you'll pay dearly through the middle. Carry the sandbag in a bear-hug or over one shoulder and switch sides every 200-250m to manage fatigue. On the gymnastics and bodyweight section, attack the push-ups first while fresh but break them early — sets of 20-15-15-10-10-10-10-10 or similar. Sit-ups and air squats are your 'rest' movements; move steadily without stopping. Double-unders require focus when fatigued — if you're tripping, take a 3-breath reset rather than burning energy on frustration. For rope climbs, 100 feet typically means 5-6 ascents on a standard 15-20ft rope — use a strong foot lock (J-hook or S-wrap) to save your arms, and rest at the bottom between climbs rather than at the top. Save something for the final 1,000m burden run — it will feel brutal but push the pace here. Common mistakes: going too fast on run 1, doing push-ups to failure early, and rushing rope climbs with poor foot technique.
Benchmark Notes
Two 1,000 m burden runs with a 25-kg sandbag around 100 push-ups, 100 sit-ups, 100 air squats, 100 double-unders and 100 feet of rope climbs. L5 (35-40 min) runs each burden leg in about 7 minutes and breaks the push-ups into sets of 10-15. L10 (under 22 min) runs near 4:30 per leg.
Modality Profile
6 movements total: Push-Up (G), Sit-Up (G), Air Squat (G), Double-Under (G), Rope Climb (G) = 5 Gymnastics; Sandbag Run (M) = 1 Monostructural (run is cyclical cardio even with sandbag, though sandbag adds load — treating as M since the primary movement is running). Wait, sandbag run could be W. Classifying Sandbag Run as W (external load carry/run). So: G=5 (Push-Up, Sit-Up, Air Squat, Double-Under, Rope Climb), M=0, W=1 (Sandbag Run). 5/6=83% G, 1/6=17% W, rounded: G:80, M:0, W:20. Adjusting to nearest 10: G:80, M:0, W:20.
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