Jackknife Sit-Up 101 Video Tutorial
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Exercise Synopsis
Target Muscle Group
Abs
Execution
Compound
Force Type
Core
Required Equipment
Bodyweight
Fitness Level
Intermediate
Variations
None
Alternatives
Timer
Hour
Minute
Second
Stopwatch
00:00:00:00
Overview
The jackknife situp is an exercise that targets the abdominal muscles, particularly the rectus abdominis or six-pack muscles. To perform the jackknife situp, lie on your back with your knees bent and your feet flat on the floor. Place your hands behind your head and then slowly sit up, bringing your knees to your chest. Keep your back straight and your abdominal muscles engaged throughout the movement. Slowly lower yourself back down to the starting position and repeat. The jackknife situp is a challenging exercise, but it is an effective way to strengthen your abdominal muscles and improve your overall core strength.
How to Perform
Soon to be added!
★ Bonus: For exercises that involve external weights (such as dumbbells, barbells, or machines), the One Rep Max (1RM) calculator can help you estimate your maximum lifting capacity. Use it to track your strength progress and adjust your training for optimal results.
Tips
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How Not to Perform
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Variations
Variations of fitness exercises refer to different ways of performing a specific exercise or movement to target various muscle groups, intensities, or goals. These variations aim to challenge the body differently, prevent plateaus, and cater to individuals with varying fitness levels.
Alternatives
Alternative exercises in fitness refer to different movements or activities that target similar muscle groups or serve the same training purpose as the primary exercise. These alternative exercises can be used as substitutes when the original exercise is unavailable or challenging to perform due to various reasons such as equipment limitations, injuries, or personal preferences.
