Perfect Machine Leg Extension Technique
The machine leg extension provides isolated quadriceps strengthening with controlled resistance. ChAIron's AI coaching ensures proper machine setup and execution for maximum muscle activation and safety.
Step-by-Step Form Guide
- Machine Setup: Adjust seat so knees align with machine's pivot point
- Position: Sit with back flat against pad, ankles behind lower pad
- Grip: Hold side handles for stability throughout movement
- Extension: Lift weight by straightening legs in smooth, controlled motion
- Peak Contraction: Pause briefly at top with legs fully extended
- Lowering: Return to starting position with controlled resistance
Common Mistakes to Avoid
- Using momentum or swinging legs during movement
- Allowing knees to drift inward during extension
- Lifting too much weight compromising form
- Arching back or sliding forward in seat
- Dropping weight too quickly on the descent
AI Coaching Benefits
ChAIron's computer vision analyzes your machine leg extension in real-time, providing instant feedback on:
- Proper machine setup and body positioning
- Range of motion optimization and control
- Knee alignment and tracking throughout movement
- Tempo and muscle activation patterns
- Safety cues and progression recommendations