How to perform Bodyweight Jackknife Sit Up with proper form
Starting Position
- Lie Down: Start by lying flat on your back on a mat or comfortable surface.
- Body Alignment: Extend your arms straight above your head and legs straight on the floor, keeping your body in a straight line.
Movement
- Engage Core: Tighten your abdominal muscles.
- Lift: Simultaneously raise your legs and upper body off the ground, bringing your arms towards your legs. Think of forming a 'V' shape with your body.
- Reach: Aim to touch your toes or get as close as possible while keeping your legs straight.
Return
- Lower Body: Slowly lower your upper body and legs back to the starting position in a controlled manner.
- Maintain Control: Avoid letting your back arch excessively and keep the movement smooth.
Key Points
- Breathing: Exhale as you lift your body and inhale as you return to the starting position.
- Keep Control: Focus on maintaining stability throughout the movement.
- Avoid Strain: Do not pull on your neck; use your core muscles for movement.
Common Mistakes
- Lifting your head and neck too aggressively.
- Arching the back instead of engaging the core.
- Rushing through the exercise instead of performing it slowly and with control.
By following these instructions, you can effectively perform the Bodyweight Jackknife Sit Up with proper form.
Exercises
Clean, Barbell
Type: Upper, Lower, Push
Target: Glutes, Hamstrings, Quadriceps, Back, Shoulders
Synergist: Calves, Biceps, Chest, Forearms
Clean and Jerk, Barbell
Type: Upper, Lower, Push
Target: Glutes, Hamstrings, Quadriceps, Back, Shoulders
Synergist: Calves, Biceps, Chest, Forearms
Deadlift, Barbell
Type: Lower, Pull
Target: Glutes, Back, Hamstrings
Synergist: Quadriceps, Calves, Abs, Forearms
Deadlift, Cable
Type: Lower, Pull
Target: Glutes, Back, Hamstrings
Synergist: Quadriceps, Calves, Abs, Forearms
Deadlift, Dumbbell
Type: Lower, Pull
Target: Glutes, Back, Hamstrings
Synergist: Quadriceps, Calves, Abs, Forearms
Deadlift, Smith Machine
Type: Lower, Pull
Target: Glutes, Back, Hamstrings
Synergist: Quadriceps, Calves, Abs, Forearms
Deadlift, Band
Type: Lower, Pull
Target: Glutes, Back, Hamstrings
Synergist: Quadriceps, Calves, Abs, Forearms
Deadlift, Kettlebell
Type: Lower, Pull
Target: Glutes, Back, Hamstrings
Synergist: Quadriceps, Calves, Abs, Forearms
Deadlift, Leverage Machine
Type: Lower, Pull
Target: Glutes, Back, Hamstrings
Synergist: Quadriceps, Calves, Abs, Forearms
Good Morning, Barbell
Type: Lower, Legs
Target: Hamstrings
Synergist: Glutes
Good Morning, Smith Machine
Type: Lower, Legs
Target: Hamstrings
Synergist: Glutes
Good Morning, Leverage Machine
Type: Lower, Legs
Target: Hamstrings
Synergist: Glutes
Hip Adductor, Leverage Machine
Type: Lower, Legs
Target: Hamstrings, Glutes
Synergist: Quadriceps
Lying Leg Curl, Band
Type: Lower, Legs
Target: Hamstrings
Synergist: Calves
Lying Leg Curl, Leverage Machine
Type: Lower, Legs
Target: Hamstrings
Synergist: Calves
Reverse Lunge, Barbell
Type: Lower, Legs
Target: Glutes, Hamstrings
Synergist: Calves
Reverse Lunge, Dumbbell
Type: Lower, Legs
Target: Glutes, Hamstrings
Synergist: Calves
Reverse Lunge, Kettlebell
Type: Lower, Legs
Target: Glutes, Hamstrings
Synergist: Calves
Reverse Lunge, Bodyweight
Type: Lower, Legs
Target: Glutes, Hamstrings
Synergist: Calves
Romanian Deadlift, Barbell
Type: Lower, Legs
Target: Back, Glutes, Hamstrings
Synergist: Abs, Calves