Crunch Sentado En Máquina De Palanca

abdominales cintura máquina de palanca

Aprende cómo hacer el Crunch Sentado En Máquina De Palanca con la forma y técnica correcta. Este ejercicio de máquina de palanca trabaja principalmente tu Abdominales, con énfasis secundario en Oblicuos.

Demostración del ejercicio Crunch Sentado En Máquina De Palanca mostrando la forma correcta

Cómo Hacer el Crunch Sentado En Máquina De Palanca

Sigue estos pasos para realizar el Crunch Sentado En Máquina De Palanca con la forma correcta:

1Siéntate en la máquina con la espalda apoyada en la almohadilla y los pies en el suelo.
2Sujeta las asas o apoya las manos en los laterales para ganar estabilidad.
3Activa el abdomen y reclina el torso lentamente, dejando que la almohadilla se mueva contigo.
4Cuando el torso quede en un ángulo aproximado de 45 grados, contrae el abdomen y haz el crunch hacia delante llevando el pecho hacia las rodillas.
5Haz una breve pausa arriba y luego vuelve lentamente a la posición inicial.
6Repite durante el número de repeticiones indicado.

Músculos Trabajados en Crunch Sentado En Máquina De Palanca

Principal

abdominales

Secundario

oblicuos

Detalles del Ejercicio

Equipo: máquina de palanca
Parte del Cuerpo: cintura
Categoría: Principal

Músculos y Anatomía

The machine crunch (lever seated crunch) uses a weighted lever to resist spinal flexion against a pad that contacts the upper chest or shoulders. This is one of the few exercises where progressive overload can be directly applied to abdominal training — a key factor for developing stronger, thicker rectus abdominis muscle. The machine guides the movement path, reducing the risk of neck strain that affects floor crunches when loaded. The obliques assist with rotation when any lateral component is present, but the machine's guided path typically isolates pure spinal flexion.

Consejos Pro para Mejores Resultados

1Set the pad to contact your upper chest at the start of the movement. If the pad is too high (at chin level), the neck absorbs the force. If too low (below chest), the arms do the work.
2Exhale fully as you crunch down — forced exhalation activates the transverse abdominis and increases core stiffness during the concentric phase.
3Hold the contracted position (fully crunched) for 1–2 seconds. This peak contraction is where the rectus abdominis is maximally shortened and where most machines are easiest due to the lever mechanics — fight the temptation to release immediately.

Errores Comunes que Debes Evitar

✗ Using hip flexion instead of spinal flexion

Corrección: Watch in a mirror: the sternum should move toward the pelvis (spinal flexion). If the hips flex instead and the torso stays straight, you're performing a hip flexor exercise, not an ab exercise.

✗ Seat height not adjusted properly

Corrección: The pivot point of the machine should align with your lumbar spine or hip joint — not the mid-back or shoulders. Incorrect alignment causes the wrong joints to do the work.

✗ Rushing through reps with momentum

Corrección: Control every rep: 1–2 seconds concentric, 1-second hold, 2–3 seconds eccentric. The machine's lever makes it easy to use momentum — resist and stay slow.

✗ Adding weight before bodyweight is mastered

Corrección: Master the machine with bodyweight resistance only (or the lightest stack setting) before adding external load. The movement pattern must be clean before load is added.

Cómo Programar el Crunch Sentado En Máquina De Palanca

Series y Repeticiones

3–4 sets of 15–20 reps. The machine crunch allows direct ab progression — track the weight and aim to increase it over time.

Frecuencia

3 times per week as a core accessory.

Dónde Colocarlo en tu Entrenamiento

Use as a primary ab exercise in core-focused training, or as a finisher after compound lifts. More productive than floor crunches for people who want measurable ab strength progression.

Cómo Progresar

Increase the weight stack by the smallest increment available when all reps include a peak hold and controlled eccentric.

Variaciones y Alternativas

Cable Kneeling Crunch

Performed kneeling with a rope attachment from a high cable pulley. More range of motion than the machine and allows constant cable tension throughout. Considered more effective than the machine crunch by many coaches.

Weighted Decline Crunch

Free-weight alternative using a decline bench and a plate. Less guided but allows for greater range of motion and is a good alternative when the crunch machine isn't available.

Ab Wheel Rollout

Trains the rectus abdominis through anti-extension rather than flexion. Produces extremely high muscle activation and is the gold standard for advanced core training.

Ejercicios Relacionados

Preguntas Frecuentes

What muscles does the Crunch Sentado En Máquina De Palanca work?

The Crunch Sentado En Máquina De Palanca primarily targets your Abdominales. Secondary muscles worked include Oblicuos. This makes it an effective exercise for developing your waist.

What equipment do I need for the Crunch Sentado En Máquina De Palanca?

The Crunch Sentado En Máquina De Palanca requires máquina de palanca. Make sure your equipment is properly set up and you have enough space to perform the movement with full range of motion.

How do I perform the Crunch Sentado En Máquina De Palanca with proper form?

Start by siéntate en la máquina con la espalda apoyada en la almohadilla y los pies en el suelo.. Sujeta las asas o apoya las manos en los laterales para ganar estabilidad. Activa el abdomen y reclina el torso lentamente, dejando que la almohadilla se mueva contigo. Focus on controlled movement throughout the entire range of motion. See the full step-by-step instructions above for complete form guidance.

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