A beginner strength exercise done using just your bodyweight that mainly works the abdominals. Start light, keep two clean reps in reserve, and add weight only when every rep looks the same. Rest 60 to 90 seconds between sets, and stop if you feel pain rather than effort.
Updated
Primary
Abdominals
Equipment
Bodyweight
Level
beginner
Side Jackknife demonstration
Side Jackknife, starting positionSide Jackknife, finishing position
How to Perform
Perform this exercise with controlled movements, focusing on proper form. Start with lighter weight to master the technique before progressing.
Video Tutorial
Tips & Common Mistakes
•Focus on controlled movements rather than speed or momentum
•Maintain proper breathing - exhale during the exertion phase
•Start with lighter weight to master the form before progressing
•This is a great exercise for beginners - focus on form over reps
•As a compound movement, this exercise works multiple muscle groups efficiently
