Workout Description
1RM Back squat
Why This Workout Is Medium
A 1RM back squat is a pure strength test with built-in recovery between attempts. The average CrossFitter can successfully find their 1RM in a single session without excessive fatigue accumulation. No metabolic demand, no skill complexity under fatigue, and no movement interference. The limiting factor is pure strength, not conditioning or technique breakdown. Most athletes complete this as prescribed with appropriate warm-up and rest between attempts.
Training Focus
This workout develops the following fitness attributes:
- Strength (10/10): Pure maximal strength expression. Finding a 1RM back squat is the definition of maximum force production against heavy external load.
- Flexibility (6/10): Back squat requires significant ankle, hip, and thoracic spine mobility to achieve proper depth and positioning under heavy load safely.
- Power (2/10): Minimal explosive demand. 1RM attempts are slow, grinding efforts focused on force production rather than speed or rate of force development.
- Endurance (1/10): 1RM back squat involves minimal cardiovascular demand. Full recovery between attempts means aerobic capacity is barely challenged during this strength-focused session.
Scaling Options
Athletes newer to heavy loading should work to a heavy 3-rep max or 5-rep max instead of a true single. If mobility or technique is a limiting factor, reduce depth expectations and work to a challenging but clean range of motion. Box squats to a target height are a great substitute to reinforce positional strength and confidence. Athletes recovering from injury or with limited barbell experience should work at 70-80% of estimated max for 3x3 with perfect mechanics rather than chasing a 1RM number.
Scaling Explanation
Scale to a heavy triple or technique-focused sets if your squat depth is inconsistent, if your lower back rounds significantly under load, if your knees cave on moderate weights, or if you have less than 6 months of consistent barbell squat experience. The goal of a 1RM day is to build strength safely over time — not to hit a number at the cost of injury. Prioritize technique and positional integrity over the load on the bar. A strong, consistent 3RM is more valuable than a shaky, dangerous 1RM. Athletes should also scale back if they are overly fatigued or sore from recent training — max effort days require a recovered body.
Intended Stimulus
Max-strength effort focused on building peak force production and neuromuscular recruitment. This is a true test of absolute lower-body strength — not conditioning. The goal is one perfect, all-out rep at the heaviest load your body can safely handle today. Expect full mental engagement, significant nervous system demand, and a session that rewards patience, precision, and confidence.
Coach Insight
Start your warm-up with bodyweight squats and hip mobility, then build systematically: 40%, 55%, 65%, 75%, 82%, 88%, 93%, 97%, 100%+. Take 3-5 minutes rest between sets once you hit 80% and 5-7 minutes above 90% — the nervous system needs full recovery. Cues to lock in: big air and brace before unracking, proud chest, knees tracking over toes, drive through the whole foot and lead with hips out of the hole. Don't rush the descent — control it to own the position. Have spotters or set the safety bars at hip height. Attempt your true max only after 2-3 successful heavy near-max singles. If your first attempt at a new PR feels ugly, hold there — a grinder is fine, a breakdown is not.
Benchmark Notes
1RM back squat is limited by lower-body strength, positional stability, and neural recruitment. L5 (~255 lb) reflects a solid intermediate CrossFitter who trains consistently but is not a dedicated strength athlete.
Modality Profile
Back Squat is a barbell movement with external load, classified as Weightlifting (W). Single movement = 100% of that modality.
