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Injury Prevention

Form Mistakes That Are Killing Your Gains (And Your Knees)

Bad form isn't just limiting your progress—it's an injury waiting to happen. Film yourself, fix these 9 critical mistakes, and lift safely for decades.

See The Mistakes

The 9 Mistakes That Lead to Injuries

Fix these before they sideline you for months

Reality check: Nothing destroys training momentum faster than 6 months of physical therapy. These mistakes compound over time until something breaks.

1. Squat: Knee Cave

Knees collapsing inward during ascent

Leads to: MCL tears, knee pain

2. Squat: Good Morning

Hips rise first, turning into hip hinge

Leads to: Lower back strain

3. Squat: Butt Wink

Pelvis tucks under at bottom

Leads to: Disc compression, SI joint issues

4. Bench: Flared Elbows

Elbows at 90 degrees from body

Leads to: Shoulder impingement, rotator cuff tears

5. Bench: Flat Back

No arch, shoulders not retracted

Leads to: Shoulder instability

6. Deadlift: Rounded Back

Lumbar or thoracic spine flexion

Leads to: Herniated discs, chronic back pain

7. Deadlift: Hips Too Low

Trying to turn deadlift into squat

Leads to: Inefficient leverages, knee stress

8. Overhead Press: Back Arch

Excessive lumbar extension

Leads to: Lower back compression

9. Pull-ups: Swinging

Using momentum instead of muscles

Leads to: Shoulder injuries, wasted effort

Why Even Experienced Lifters Develop Bad Form

I thought I had perfect squat form for two years. Then I filmed myself and watched in horror as my knees caved like a newborn giraffe. That video changed everything.

Bad form isn't always about ego. Here's what actually causes it:

Fatigue Accumulation

Form deteriorates as you get tired during sets

Mobility Limitations

Can't physically get into proper positions

Previous Injuries

Compensating without realizing it

Progressive Overload Addiction

Weight increases faster than technique improves

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Squat Fixes: Stop Destroying Your Knees

Fix #1: The Knee Cave

What to do:

Pre-activation: 2x15 lateral band walks before squatting

Cue: "Screw your feet into the ground"

Strengthen: Bulgarian split squats with perfect knee tracking

Daily mobility: 90/90 hip stretches

Why it works:

Weak glutes can't control femur rotation. Band walks activate glutes before squatting, external rotation cue engages them during lift.

Fix #2: The Good Morning Squat

What to do:

Tempo squats: 3 seconds down, 2 second pause

Front squats to build upright torso strength

Cue: "Chest up, drive floor away"

Core work: Paused front squats, ab wheel rollouts

Why it works:

Weak quads cause hips to rise first. Tempo work builds quad strength at sticking point. Front squats force upright position.

Fix #3: The Butt Wink

What to do:

Only squat as deep as you can maintain neutral spine

Box squats to learn proper depth

Daily hip mobility: 90/90s, pigeon pose

Strengthen posterior chain: Good mornings, RDLs

Why it works:

Hip mobility limits how deep you can go. Forcing depth causes pelvis to tuck. Box teaches proper depth without compensation.

Bench Press Fixes: Save Your Shoulders

The Flared Elbow Problem

Elbows at 90 degrees creates impingement

Fix: Tuck elbows 45 degrees

Bar touches at nipple line or just below

Cue: "Bend the bar"

The Flat Back Problem

No arch = shoulder instability

Fix: "Shoulder blades back and down"

Create natural arch (fist fits under lower back)

Drive feet into ground

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Deadlift Fixes: Protect Your Back

Critical: A rounded back under load is the fastest way to a herniated disc. No weight is worth compromising spinal position.

Rounded Back Fix

Most dangerous form mistake in lifting

Fix: Reduce weight by 30-40%

Cue: "Chest up, pull slack out of bar"

RDLs to learn hip hinge pattern

Film from side angle every set

Hips Too Low Fix

Deadlift isn't a squat

Fix: Hips higher than knees but lower than shoulders

Shoulders directly over bar

Cue: "Push floor away"

Block pulls if mobility limited

The 8-Week Form Fix Protocol

How to systematically fix your form without losing progress

Week 1-2: Assessment

Film all working sets from multiple angles

Compare with correct form videos

Identify top 3 issues to address

Complete mobility assessments

Week 3-4: Regression

Reduce training weight 20-30%

Implement tempo work on primary lifts

Add specific mobility work daily

Focus on perfect form over load

Week 5-8: Rebuilding

Gradually increase weight back

Film weekly to monitor progress

Add weak point accessory exercises

Continue mobility work

Week 9+: Integration

New patterns should feel natural

Monthly form check videos

Address new issues as they develop

Maintain mobility work

Red Flags: When to Stop Immediately

Stop and Assess

Sharp pain anywhere

Numbness or tingling

Joint pain (not muscle soreness)

Pain increasing during set

Push Through (Carefully)

Muscle burn and fatigue

Fatigue-induced trembling

General exercise discomfort

DOMS from previous sessions

The Long Game

Perfect form is a journey, not a destination. I've been lifting for over a decade and still find things to improve.

Your future self will thank you for every rep you do correctly today.

Scientific References
  1. Hewett TE, Myer GD, Ford KR. Biomechanical measures of neuromuscular control and valgus loading of the knee predict anterior cruciate ligament injury risk in female athletes. Am J Sports Med. 2005;33(4):492-501.
  2. McGill SM. Low back disorders: evidence-based prevention and rehabilitation. 3rd ed. Champaign, IL: Human Kinetics; 2016.
  3. Hales M. Improving the Deadlift: Understanding Biomechanical Constraints and Physiological Adaptations to Resistance Exercise. Strength Cond J. 2010;32(4):44-51.
  4. Schoenfeld BJ, Contreras B, Krieger J, et al. Resistance Training Volume Enhances Muscle Hypertrophy but Not Strength in Trained Men. Med Sci Sports Exerc. 2019;51(1):94-103.
  5. Saeterbakken AH, Fimland MS. Muscle force output and electromyographic activity in squats with various unstable surfaces. J Strength Cond Res. 2013;27(1):130-136.
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