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
Box Squat, Barbell
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Box Squat, Dumbbell
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Bulgarian Split Squat, Dumbbell
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Calf Press on Seated Leg Press, Leverage Machine
Type: Lower, Legs
Target: Calves, Quadriceps
Synergist: Glutes, Hamstrings
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 High Pull, Barbell
Type: Upper, Lower, Pull
Target: Shoulders, Glutes, Quadriceps
Synergist: Hamstrings, Biceps, Forearms, Calves, Back
Front Squat, Barbell
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Front Squat, Cable
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Front Squat, Dumbbell
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Front Squat, Smith Machine
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Front Squat, Kettlebell
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Goblet Squat, Dumbbell
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Goblet Squat, Kettlebell
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Hack Squat, Barbell
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Hack Squat, Smith Machine
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Jump Squat, Barbell
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Jump Squat, Bodyweight
Type: Lower, Legs
Target: Glutes, Quadriceps
Synergist: Hamstrings, Calves
Leg Extension, Band
Type: Lower, Legs
Target: Quadriceps
Synergist: Glutes
Leg Extension, Leverage Machine
Type: Lower, Legs
Target: Quadriceps
Synergist: Glutes