Weighted Floor Crunch Feet on Bench
- Músculo objetivo
- Rectus Abdominis
- Músculos sinergistas
- Obliques
- Equipamiento
- Weighted
- Parte del cuerpo
- Waist
- Tipo
- Strength
The Weighted Floor Crunch Feet on Bench is a loaded abdominal exercise that places the rectus abdominis under direct tension through spinal flexion, with the obliques acting as synergists to stabilize the torso. Elevating your feet on a bench tilts the pelvis and flattens the lower back, removing hip flexor involvement and isolating the abs more effectively. It is well suited for lifters who want to build abdominal thickness and strength beyond what bodyweight crunches can provide.
Cómo hacer el Weighted Floor Crunch Feet on Bench
- 1Place a flat bench behind you and sit on the floor in front of it. Hook your feet over the top of the bench so your knees are bent at roughly 90 degrees and your shins rest comfortably on the bench surface.
- 2Hold a weight plate or dumbbell against your chest with both hands, keeping it close to your sternum.
- 3Lie back so your lower back is flat against the floor and your head is neutral — do not tuck your chin to your chest.
- 4Take a breath in at the bottom position.
- 5Exhale and curl your upper torso off the floor by contracting the rectus abdominis, lifting your shoulder blades clear of the ground. Think about bringing your ribs toward your hips rather than reaching your head toward the ceiling.
- 6Pause briefly at the top when you feel peak abdominal contraction.
- 7Inhale and lower your shoulder blades back to the floor in a controlled manner, keeping a small degree of tension in the abs throughout the descent.
- 8Repeat for the desired number of repetitions without letting your lower back arch away from the floor between reps.
Consejos de técnica
- Keep the weight pressed firmly against your chest throughout every rep — if it drifts forward it shifts load away from your abs and strains your neck.
- Focus on rotating the rib cage toward the pelvis rather than simply lifting your head. This mental cue drives true spinal flexion instead of a shallow neck movement.
- Slow the lowering phase to 2–3 seconds to increase time under tension and reduce the temptation to bounce off the floor.
- Actively press your lower back into the floor before initiating each rep. This pre-activates the abs and prevents the hip flexors from taking over.
- Choose a weight that lets you complete every rep with full range of motion. If you cannot feel the contraction clearly, the load is too heavy.
Errores comunes
- Pulling on the neck or tucking the chin: This transfers effort to the neck flexors instead of the abs and can cause cervical strain. Keep your hands on the weight and your gaze angled toward the ceiling.
- Allowing the lower back to arch off the floor: When the lumbar spine lifts, the hip flexors take over the movement. This reduces rectus abdominis activation and places compressive load on the lumbar discs.
- Using momentum to bounce off the floor: Bouncing shortens the time your abs spend under tension and makes each rep easier without making you stronger. Lower under control and pause briefly at the bottom.
- Selecting a weight that is too heavy: Excessive load forces compensations — the neck juts forward, the range of motion shrinks, and the obliques and hip flexors do most of the work. Start lighter than you think you need to.
- Raising the feet too high on the bench: If your hips are significantly higher than your knees, it alters pelvic tilt in a way that reduces the isolation benefit of having feet elevated. Aim for shins roughly parallel to the floor.
Preguntas frecuentes
What muscles does the Weighted Floor Crunch Feet on Bench work?
The primary muscle is the rectus abdominis, which runs vertically down the front of your abdomen and is responsible for spinal flexion. The obliques — both internal and external — act as synergists, helping to stabilize the torso and assist with the curling motion. Elevating the feet on the bench limits hip flexor contribution, so nearly all the effort stays in the abs.
How much weight should I hold during this exercise?
Start with a 5–10 kg plate and assess whether you can complete 12–15 reps with a full range of motion and a clear muscular contraction. If the movement feels easy, add 2.5–5 kg. If you cannot feel the abs working or your form breaks down, drop the weight. Most lifters find a 10–25 kg plate sufficient for meaningful overload without compromising technique.
Is the Weighted Floor Crunch Feet on Bench better than a regular crunch?
It depends on your goal. The bench foot position reduces hip flexor involvement compared to a floor crunch with feet flat, which means more isolated ab work. Adding weight provides progressive overload that bodyweight crunches cannot, making this variation better for building abdominal strength and thickness over time. If your goal is endurance or you are new to training, the unweighted version is a logical starting point.
How many reps and sets should I do?
For strength and hypertrophy, 3–4 sets of 8–15 reps with a weight that is challenging by the final few reps is a practical range. For muscular endurance, use a lighter weight and aim for 15–20 reps. Rest 60–90 seconds between sets. Because the abs recover relatively quickly, you can train them 2–3 times per week.
Where should I feel the Weighted Floor Crunch Feet on Bench?
You should feel a clear burn or tension along the front of your abdomen, roughly from your lower ribs down toward your navel. If you feel it primarily in your neck, you are pulling with your head rather than curling with your spine. If you feel it mainly in your hip flexors or lower back, your feet are likely too high on the bench or your lower back is arching off the floor.
