Key takeaways
- Farmer carries use two kettlebells (bilateral, symmetrical load); suitcase carries use one kettlebell (unilateral, asymmetrical load).
- Farmer carries allow heavier absolute load and build grip endurance and work capacity; suitcase carries demand more core stability and anti-rotation strength.
- Load placement changes spinal demand: farmer carries keep load balanced; suitcase carries force your core to resist lateral tilt.
- Both are valuable. Choose based on your training goal: farmer for raw strength and volume, suitcase for core resilience and unilateral stability.
- Suitcase carries are harder per unit of load; start lighter and progress slower than farmer carries.
The core difference: bilateral vs. unilateral load
A farmer carry holds one kettlebell in each hand, load symmetrically distributed on both sides of your body. A suitcase carry holds one kettlebell in one hand, creating an asymmetrical load that your core must stabilize against.
This single structural difference ripples through biomechanics, muscle recruitment, and training effect.
Farmer carries are simpler to learn and tolerate heavier absolute load because both sides work together. Suitcase carries demand more from your stabilizer muscles—obliques, quadratus lumborum, transverse abdominis, and spinal erectors—because they must resist the rotational and lateral forces created by one-sided load.
Neither is “better.” They train different qualities and suit different programming windows.
Load placement and spinal demand
Farmer Carry Load Path
Both kettlebells hang at your sides, creating a vertical load vector straight down through your center of mass. Your spine experiences compressive load (weight pressing down) but minimal shear or rotational stress. This is why farmer carries feel stable and allow heavier loads.
Your posture is straightforward: shoulders level, chest upright, spine neutral, both arms hanging naturally. The load is easy to balance because it’s symmetrical.
Suitcase Carry Load Path
One kettlebell creates an off-center load vector. If you carry a kettlebell in your right hand, the load pulls your right shoulder down and your torso toward the right. Your core must brace hard to resist this tilt and keep your spine neutral.
Your posture must actively resist: shoulders stay level (not tilted toward the load), ribcage stays stacked over your pelvis (no lateral lean), and spine stays neutral. This active bracing is the training stimulus.
Spinal Stress Comparison
| Factor | Farmer Carry | Suitcase Carry |
|---|---|---|
| Load distribution | Bilateral, symmetrical | Unilateral, asymmetrical |
| Primary spinal stress | Compression | Compression + anti-rotation |
| Stabilizer demand | Moderate | High |
| Absolute load tolerance | Higher | Lower (50–70% of farmer load) |
| Grip demand | High (two hands) | Moderate (one hand) |
| Core activation | Baseline | Elevated |
Core activation and anti-rotation work
Suitcase carries are a loaded anti-rotation drill. Your obliques and deep core muscles work continuously to prevent your torso from rotating or tilting toward the loaded side.
This is not a small effect. Research and practical observation show that suitcase carries activate the obliques and transverse abdominis more intensely than farmer carries at equivalent relative loads. If your goal is core resilience, anti-rotation strength, or unilateral stability, suitcase carries deliver more training stimulus per rep.
Farmer carries, by contrast, build core endurance and work capacity through volume and duration. Because you can carry heavier loads, you accumulate more total load-distance (e.g., 100 lb × 100 meters = 10,000 lb-meters), which builds grip strength and metabolic conditioning.
Programming implication: Use suitcase carries when you want to target core stability; use farmer carries when you want to build volume and grip endurance.
Programming: when to use each carry
Farmer Carries
Best for:
– Building grip strength and endurance
– Accumulating high total load-distance
– Warm-up or finisher (low technical demand)
– Metabolic conditioning
– Beginners (easier to learn and balance)
Typical prescription:
– 2–4 sets of 40–100 meters per set
– 2–3 times per week
– Rest 60–90 seconds between sets
– Load: kettlebell weight you can hold for 60+ seconds without grip failure
Example: 3 sets × 60 meters with 35 lb kettlebells in each hand, 90 seconds rest.
Suitcase Carries
Best for:
– Anti-rotation core training
– Unilateral stability and resilience
– Offset load work (preparing for real-world asymmetrical demands)
– Intermediate to advanced trainees
– Sessions where core stability is a priority
Typical prescription:
– 3–5 sets of 20–50 meters per side per set
– 2–3 times per week
– Rest 60–90 seconds between sets (or 30 seconds between sides, then 90 seconds before the next full set)
– Load: 50–70% of your farmer carry weight per hand
Example: 4 sets × 30 meters right, 30 meters left, with 20 lb kettlebell, 90 seconds rest between full sets.
Combining Both in One Session
If you have time and energy:
- Warm-up: 2 sets × 40 meters farmer carry (light load, focus on posture).
- Main work: 4 sets × 30 meters suitcase carry per side (heavier load, full focus).
- Finisher: 2 sets × 60 meters farmer carry (moderate load, high volume).
Total session time: 15–20 minutes. Total carry volume: roughly 400–500 meters. This balances core work (suitcase) with volume and grip endurance (farmer).
Common mistakes and progressions
Mistake 1: Using the same load for both carries
Suitcase carries are harder per unit of load because they demand anti-rotation bracing. If you use the same kettlebell weight for both, suitcase carries will feel much heavier and you’ll fatigue faster. Fix: Start suitcase carries at 50–60% of your farmer carry weight and progress from there.
Mistake 2: Leaning or tilting during suitcase carries
If your torso tilts toward the loaded side, you’ve lost the anti-rotation stimulus and increased spinal stress. Your core isn’t strong enough yet, or the load is too heavy. Fix: Reduce load, shorten distance, and cue yourself to “keep shoulders level” and “stack ribs over hips.”
Mistake 3: Alternating sides every few steps
This makes it hard to track work per side and can introduce compensation patterns. Fix: Do one full set per side (e.g., 30 meters right, rest, 30 meters left), then move to the next set.
Mistake 4: Ignoring grip fatigue in farmer carries
Farmer carries demand sustained grip. If your grip fails before your core or legs, you stop early and miss volume. Fix: Use lifting straps if grip is the limiting factor, or rotate farmer carries with other movements to spread grip demand across the session.
Progression Path
- Weeks 1–2: Farmer carries only, 40 meters × 3 sets, light load (focus on posture).
- Weeks 3–4: Farmer carries 60 meters × 3 sets, add suitcase carries 20 meters × 2 sets per side (very light load).
- Weeks 5–8: Farmer carries 60–80 meters × 3 sets, suitcase carries 30 meters × 3–4 sets per side (moderate load).
- Weeks 9+: Farmer carries 80–100 meters × 2–3 sets, suitcase carries 40–50 meters × 4–5 sets per side (heavier load).
Increase load by 5–10 lb per side every 2–3 weeks if posture and breathing stay solid.
Load selection and session design
How to Pick Starting Load
Farmer carries: Start with a kettlebell weight you can hold comfortably for 60 seconds without grip fatigue or postural breakdown. If you’re unsure, use a weight that feels “easy” for the first 20 meters; by 60 meters, it should feel moderately challenging but not crushing.
Suitcase carries: Use 50–70% of your farmer carry weight per hand. If you farmer carry 35 lb kettlebells, start suitcase carries with 18–24 lb per hand. This accounts for the increased core demand.
Volume and Frequency
Total carry volume per week should fit within your overall kettlebell training budget. A rough guideline:
- Beginner (new to carries): 200–300 meters of total carry per week (farmer + suitcase combined).
- Intermediate: 400–600 meters per week.
- Advanced: 600–1000+ meters per week.
Do not add carries on top of heavy strength work (e.g., heavy swings or snatches) in the same session unless you have extra recovery capacity. Carries are work, and they accumulate fatigue.
Session Order
- Warm-up (5–10 min): light movement, mobility, breathing.
- Main strength work (if any): heavy swings, Turkish get-ups, presses (10–15 min).
- Carries (5–10 min): farmer first (if doing both), then suitcase. Or suitcase only if that’s your focus.
- Finisher (optional): light farmer carries or other conditioning (5 min).
If carries are your main work for the day, do them after a brief warm-up when you’re fresh.
Who this is for
Farmer Carries
- Beginners: Easy to learn, forgiving of postural imperfection, builds confidence and grip strength.
- Strength athletes: High load tolerance supports heavy absolute load and work capacity.
- Conditioning-focused trainees: High volume and metabolic demand.
- Anyone with limited time: Efficient, simple, low technical demand.
Suitcase Carries
- Intermediate to advanced trainees: Demands postural control and core awareness.
- Core stability seekers: Anti-rotation work is the primary stimulus.
- Athletes preparing for asymmetrical demands: Mimics real-world off-center load (carrying a child, a suitcase, a heavy bag on one side).
- People with lower back concerns: Lighter load and anti-rotation focus can build resilience (with proper progression and medical clearance).
Who Should Avoid or Modify
- Acute lower back pain: Consult a healthcare provider. Light suitcase carries with strict posture control may help; heavy carries may aggravate. Education only, not medical advice.
- Shoulder instability or injury: Farmer carries with heavy load may stress the shoulder joint. Start light and monitor; consider single-arm carries (suitcase) as an alternative.
- Severe grip weakness: Farmer carries will be limited by grip. Use straps or reduce load; suitcase carries may be easier because only one hand is loaded.
FAQ
Q: Can I do farmer carries and suitcase carries in the same session?
Yes. Farmer carries (bilateral) work well as a warm-up or finisher; suitcase carries (unilateral) demand more core stability and are better placed mid-session when you’re fresh. A typical order: farmer carries for 2–3 sets of 40–60 meters, then suitcase carries for 3–4 sets of 20–30 meters per side. Total carry volume per week should stay within your overall kettlebell load budget.
Q: Which carry burns more calories or builds more grip strength?
Farmer carries allow heavier absolute load (two kettlebells) and thus higher total volume, which favors grip endurance and metabolic demand. Suitcase carries demand more core and stabilizer muscle recruitment per side, so they build anti-rotation strength and unilateral stability faster. For pure grip, farmer carries win; for core resilience, suitcase carries win.
Q: What load should I start with for each?
Farmer carries: begin with a kettlebell weight you can hold comfortably for 60 seconds without grip fatigue. Suitcase carries: use 50–70% of your farmer carry weight per hand, since one-sided load demands more core bracing. If unsure, start light and add 5–10 lb per side per week as technique and posture improve.
Q: Do I need to do both, or can I pick one?
You can pick one and progress well. Farmer carries alone build strength and work capacity; suitcase carries alone build anti-rotation resilience and unilateral stability. If you have limited time, suitcase carries offer more bang for your buck because they demand more stabilizer activation. If you want balanced development, rotate or combine both.
Q: How long should I carry for distance or time?
Farmer carries: 40–100 meters per set, 2–4 sets, 2–3 times per week. Suitcase carries: 20–50 meters per side per set, 3–5 sets, 2–3 times per week. Rest 60–90 seconds between sets. Adjust distance and load so you can maintain neutral spine and upright posture throughout; if you lean or fatigue, stop and rest.
Q: Can I do suitcase carries if I have lower back pain?
Education only, not medical advice. Suitcase carries can aggravate lower back pain if load is too heavy or posture breaks down. Start very light (8–12 lb per hand) and focus on keeping your ribcage stacked over your pelvis—no leaning. If pain persists, consult a healthcare provider. Farmer carries may feel safer because bilateral load is more symmetrical, but load must still be managed.
Q: Should I alternate sides during a suitcase carry set, or do one side at a time?
Do one side at a time (e.g., 30 meters right, rest 30 seconds, 30 meters left). This ensures equal work per side and prevents compensation. Alternating every few steps is harder to track and can introduce imbalance. Once you’re strong, you can do longer unbroken sets per side (50–100 meters) before switching.
Q: What’s the difference in posture between farmer and suitcase carries?
Farmer carries: shoulders level, spine neutral, chest upright, both arms at your sides. Suitcase carries: same spine and chest position, but one arm carries load while the other hangs empty. Your obliques and anti-rotation muscles must work hard to keep your torso from tilting toward the loaded side. This asymmetry is the training effect.