Sit Up

Equipment: Bodyweight

Sit-Up
Primary Muscles
  • Rectus Abdominis
Synergistic Muscles
  • Obliques

Sit-ups are a simple exercise that can strengthen your abdominal muscles and improve your posture. Here is an ultra short step by step guide for sit-ups:

  1. Lie on your back with your knees bent and your feet flat on the floor. Place your hands behind your head or cross them over your chest.
  2. Engage your core and lift your upper body off the floor until your elbows touch your knees or your chest touches your thighs. Keep your lower back pressed against the floor and avoid pulling on your neck.
  3. Slowly lower your upper body back to the starting position. Repeat as many times as you can without losing form.
  4. Repeat for the desired number of reps.

Introduction

The "Sit Up" exercise focuses on strengthening the core muscles, particularly the abdominal muscles. It effectively improves posture, stability, and flexibility in the torso. This exercise is beneficial for anyone aiming to build a strong core, enhance athletic performance, or achieve a toned midsection as part of their overall fitness routine.

Muscles Worked

  • Primary: Abdominals (Rectus abdominis, Transverse abdominis, and Obliques)
  • Secondary: Hip flexors (Iliopsoas, Rectus femoris), Lower back muscles (Erector spinae), Shoulders (Serratus anterior)

How to Do It (Step-by-Step)

  1. Lie flat on your back with your knees bent at a 90-degree angle and feet flat on the floor, hands lightly behind your head.
  2. Using your core muscles, slowly lift your upper body towards your knees, keeping your lower back pressed to the ground.
  3. Maintain a natural curve in your spine, avoid pulling on your neck or using momentum, and slowly return to the starting position.

Tip: Breathe out as you lift up, and breathe in as you lower down for better control and reduced strain.

Rep & Rest Guidelines

  • Strength: 4–6 reps, 2–3 min rest
  • Hypertrophy: 8–12 reps, 60–90 sec rest
  • Endurance: 12–20 reps, 30–60 sec rest

Using the Auto Progression feature in VolymApp can help you adjust your workout automatically to see continuous improvement.

Set your rest times accurately with the Rest Timer feature in VolymApp.

Form Tips

  • Maintain a neutral spine and avoid rounding the back. Keep your core engaged to prevent excessive arching or slouching.
  • Place your hands on your thighs or use them to support yourself if needed, but do not hold onto furniture or other supports. This helps develop abdominal strength without relying on external assistance.
  • Use slow and controlled movements to focus on proper form and build core stability. Exhale as you sit up, and inhale as you return to the starting position.

When to Use It

  • Strengthening the core for better posture and daily activities
  • Improving abdominal muscles in rehabilitation from back injuries
  • Enhancing athletic performance by increasing core stability during sports

Consistently track your workout history: Workout History

sit up - Frequently Asked Questions
Common questions about sit up to optimize your training.

Sit-ups primarily work the abdominal muscles, focusing on the rectus abdominis.

Aim for 3 sets of 10-20 repetitions per set, 3 days a week to see results.

Slower, controlled movements are more effective in building muscle strength.

Adding weights can increase resistance and intensity but should be introduced gradually.

Keep your lower back pressed against the floor, bend at the hips, not the waist, and exhale as you come up.

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