I'm interested in
Visual demonstration of the Crunch (Straight Leg Up) exercise

Protected preview

Beginner

Difficulty
Beginner
Movement type
Strength
Primary muscles
Abs
Secondary muscles
Obliques
Equipment
Bodyweight
Exercise guide

Crunch (Straight Leg Up)

4 steps Updated 29/08/2026

Crunch (Straight Leg Up) is a bodyweight exercise targeting Abdominals (Rectus Abdominis).

Step by step

How to perform it

  1. Begin by lying flat on your back with your legs extended straight up towards the ceiling. Keep your feet together, and your arms extended straight above your chest.
  2. Engage your core and lift your shoulder blades off the floor, reaching your arms towards your toes.
  3. Hold the crunch position briefly, squeezing your abdominal muscles at the top.
  4. Lower your shoulder blades back to the floor with control, keeping your legs extended upward. Repeat the movement for the desired number of repetitions.
Continue from here
Visual demonstration of the 3-4 Sit-Up exercise 3-4 Sit-Up Abs Visual demonstration of the 45 Degree Bicycle Twist Knee to Elbow exercise 45 Degree Bicycle Twist Knee to Elbow Abs · Obliques Visual demonstration of the 45 Degree Bicycle Twisting exercise 45 Degree Bicycle Twisting Abs · Obliques Visual demonstration of the 45 Degree Bicycle Twisting Crunch exercise 45 Degree Bicycle Twisting Crunch Abs · Obliques

Last updated: 29/08/2026

Back to all exercises
Crunch (Straight Leg Up)

Add it to your program

Build a program

We use cookies to improve your experience on our website. You can accept all cookies, reject non-essential cookies or customize your preferences.
By selecting "Accept", you agree to the Privacy policy & cookies

Customize settings
Accept
Cookie Settings
Essential Cookies

These cookies are required for the website to function correctly and are therefore always enabled. They include cookies that support secure navigation, regulatory compliance and core services. They do not require user consent.

Performance Cookies (Google Analytics)

We use third-party cookies (Google Analytics) solely to analyze traffic and improve website performance. We take measures to protect your data, including IP address anonymization. These cookies collect anonymous information about the pages you visit, your device and your browser. They are used only with your consent.

Advertising and Social Media Cookies

Social media cookies allow you to connect to social networks and share content from our website. Advertising cookies help personalize ads based on your interests. They may involve processing personal data and require your explicit consent. If you disable them, you may see less relevant advertising or be unable to share content on social networks.