Half Spinal Twist
the 12 Basic asanas
Half Spinal Twist: A seated twist for spinal flexibility and balance.
Half Spinal Twist or Ardha Matsyendrasana is a seated twisting posture that brings balance, strength, and flexibility to the spine. After the body has moved through forward bends and backward bends, this asana completes the range of spinal movement by adding lateral rotation. It helps keep the spine elastic, tones the back and spinal nerves, and refreshes the whole body through steady, mindful movement.
Named after the great yogic sage Matsyendranath, this posture develops both physical alignment and inner awareness. The pose may appear intricate at first, but it is built step by step through an upright spine, open chest, steady breathing, and patient concentration. Practised on both sides, it brings symmetry to the body and balance to the nervous system.
Because twisting is not a movement we often explore fully in daily life, Half Spinal Twist also encourages mental adaptability. As the spine lengthens and rotates without strain, the mind learns to remain calm, focused, and flexible.
Stretches and tones the spinal muscles, ligaments, and nerves
Helps keep the back supple, strong, and mobile.
Encourages an upright posture by opening the chest and aligning the spine.
Helps release tension in the back, shoulders, and hips
Massages the abdominal organs through gentle compression and release
Helps relieve sluggish digestion, constipation, and indigestion
Improves the appetite
Refreshes circulation around the spine and abdominal organs
Brings renewed vitality to the whole body
Sit with your legs extended straight in front of you and take both arms behind your back. Place your hands palms down, with your fingers pointing backwards.
Place your left foot flat on the mat outside your right calf. Inhale and lift your right arm straight up.
To come into the full pose, exhale, bring your right arm down and push it against the outside of your left leg. Catch hold of the sole of your left foot or ankle. Turn your chest, head, and eyes to the left. Breathe slowly in your abdomen. Hold for up to 1 minute. Slowly release first your head, then your spine. Repeat on the other side.
The lumbar area does not twist easily, so you need to rotate the cervical and thoracic areas of your spine. Keeping your chest open and your neck straight is the best basis for a good twist.
Start by sitting on your heels and placing your palms face down on your thighs.
Keep the back, neck, and head aligned
Keeping with your palms on your thighs, adjust yourself so you are sitting to the right of your feet, with your buttocks evenly on the floor.
Take your left foot over your right thigh, placing it flat on the mat close to your knee. Support your body with your left arm behind your back. Inhale and lift your right arm straight up.
To come into the full pose, exhale, bring your right arm down, and push it against the outside of your left knee as you try to catch hold of the sole of your left foot or your left ankle. Turn your chest, head, and eyes to the left. Breathe slowly in your abdomen. Hold the pose for up to one minute. Slowly release first your head, then your spine. Repeat on the other side, then relax in Child's Pose.
Practise the pose gradually and symmetrically, always twisting to both sides. Keep the spine long, the shoulders relaxed, the chest open, and the breath slow and steady. Rather than forcing the twist, allow each exhalation to take you a little deeper while maintaining comfort and control.
Swami Vishnudevananda
Sivananda Yoga Centres
