Knee Touch Crunch 101 Video Tutorial
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Exercise Synopsis
Target Muscle Group
Abs
Secondary Targets
Execution
Isolation
Force Type
Core
Required Equipment
Bodyweight
Fitness Level
Beginner
Variations
None
Alternatives
None
Timer
Hour
Minute
Second
Stopwatch
00:00:00:00
Overview
The Knee Touch Crunch is a bodyweight exercise that primarily targets the abdominal muscles while engaging the obliques as a secondary muscle group. Performed lying on your back with knees bent and feet flat on the floor, it involves lifting the shoulders off the mat and simultaneously bringing the elbow toward the opposite knee in a controlled twisting motion. This alternating movement enhances core strength, improves rotational stability, and helps define the waistline, all while maintaining proper spinal alignment and minimizing strain on the lower back.
How to Perform
Lie on your back on a mat with your knees bent and your feet resting firmly on the floor.
Position your hands lightly behind your head or alongside your body for stability.
Tighten your abdominal muscles and lift your upper back and shoulders off the mat, keeping your neck relaxed and aligned with your spine.
Twist your torso to bring your right elbow toward your left knee, reaching across your body while maintaining control.
Lower back down to the starting position and then twist to bring your left elbow toward your right knee.
Repeat this side-to-side motion in a smooth, controlled manner for the number of reps you plan.
Keep your lower back pressed gently against the mat at all times to avoid strain and maximize core engagement.
Focus on slow, deliberate movements rather than speed to fully activate the abs and obliques.
★ 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
Focus on controlled movements to fully engage the abs and obliques.
Avoid pulling on your neck with your hands to prevent strain.
Keep your lower back pressed into the floor throughout the exercise.
Exhale as you twist and crunch, inhale as you return to the starting position.
Move slowly rather than rushing to maximize muscle activation.
Maintain a slight bend in the elbows to protect your shoulders.
Keep your gaze upward to help maintain proper neck alignment.
Engage your core before initiating the twist to stabilize your spine.
Avoid letting your feet lift off the floor to maintain proper form.
Focus on quality of reps over quantity to prevent fatigue and injury.
How Not to Perform
Do not jerk your torso or use momentum to reach your knee.
Do not pull on your neck or head with your hands.
Do not lift your lower back off the floor.
Do not rush through repetitions; avoid fast, uncontrolled movements.
Do not let your feet leave the floor while crunching.
Do not fully straighten your legs; keep knees bent for proper form.
Do not hold your breath during the exercise.
Do not twist excessively, which can strain your spine.
Do not let your elbows flare too wide, reducing oblique engagement.
Do not sacrifice form for more repetitions.
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.
