V-Ups: Full Range Ab Training
The V-up is an advanced core exercise that simultaneously lifts the legs and torso to create a V-shape at the top, engaging the entire rectus abdominis through a complete range of motion.
Proper Form
Lie flat on your back with arms extended overhead and legs straight on the floor.
Simultaneously lift your legs and torso off the ground, reaching your hands toward your toes.
Your body should form a V-shape at the top, balanced on your sit bones.
Touch your hands to your shins or toes at the peak of the movement.
Lower both your legs and torso back to the floor under control, returning to the full lying position.
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V-Up on GLP-1 Medications
V-ups are an advanced movement that GLP-1 patients should progress to after mastering crunches and lying leg raises individually. The simultaneous demands on both upper and lower abs make V-ups highly efficient for time-limited workouts. Patients with excess abdominal tissue may find the full V-up challenging due to the body folding at the midsection — the modified bent-knee version is an appropriate starting point. As with all supine core exercises, avoid performing V-ups immediately after meals to prevent nausea.
Variations
- 1Modified V-up — bend your knees to reduce difficulty
- 2Single-leg V-up — alternate raising one leg at a time while the torso lifts fully
- 3Weighted V-up — hold a dumbbell or medicine ball in your hands
- 4Jackknife — same pattern performed on a bench with only the hips on the edge
Why V-Ups Are a Time-Efficient Core Exercise
The V-up combines the function of a crunch (upper ab flexion) and a leg raise (lower ab flexion) into a single movement. This makes it one of the most time-efficient core exercises available — you get full rectus abdominis activation in one rep instead of needing two separate exercises. For busy individuals who can only dedicate five to ten minutes to core training, V-ups deliver maximal stimulus in minimal time. The movement also requires coordination between the upper and lower body, which has carryover to athletic movements.
Common Mistakes That Reduce Effectiveness
The most common error is using momentum by swinging the arms to throw the torso up. This turns the V-up into a ballistic movement that bypasses the abs. Instead, initiate the lift by contracting your abs first, then reach your hands toward your feet as a consequence of the torso rising. Another frequent mistake is bending the knees excessively, which shortens the lever arm and reduces the demand on the lower abs. Keep your legs as straight as possible while still being able to complete the rep with control.
- Initiate with ab contraction, not arm momentum
- Keep legs as straight as hamstring flexibility allows
- Touch hands to shins or toes at the top
- Lower both legs and torso at the same speed — do not drop one faster
Building Up to Full V-Ups
If full V-ups are too challenging, build the component parts separately. Practice lying leg raises and crunches until you are strong at both. Then try the modified V-up with bent knees, which shortens the leg lever arm and reduces difficulty by roughly 30 percent. Once you can do 3 sets of 12 modified V-ups, extend one leg at a time while keeping the other bent. Graduate to full V-ups when both legs can be straight without form breakdown. The typical timeline from modified to full V-ups is four to six weeks of consistent training.
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Exercise Disclaimer
This content is for informational purposes only and does not replace professional instruction. Consult a qualified trainer or healthcare provider before starting any exercise program. Individual calorie burn varies based on fitness level, intensity, and body composition.
Frequently Asked Questions
V-ups are excellent for building the rectus abdominis because they train both the upper and lower portions through a full range of motion. Combined with a calorie deficit to reduce body fat, V-ups will help develop visible abdominal definition.
Three sets of 10-15 reps with controlled form is effective for most people. If you cannot maintain straight legs and a controlled tempo for 10 reps, reduce to 6-8 reps or switch to the modified version with bent knees.
Limited hamstring flexibility or insufficient core strength prevents the torso and legs from getting close enough to meet. Touch your shins or knees instead. Over time, both flexibility and strength will improve, allowing you to reach higher.
V-ups can serve as a primary core exercise that covers both functions, but they are demanding and may not be appropriate for every session. Having crunches and leg raises in your exercise library gives you options for lighter days or when V-ups cause too much fatigue.
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