Brian Yee answered:
Pelvic tilts: Laying on your back with knees bent - rock your pelvis back - flattening your back against the bed and return to neutral, and if it doesn’t bother you progress to arching your back a small amount. Oscillate back and forth.
Knee to chest: Bring one knee up to your chest, stretching your hip and your back. You can progress to both knees to your chest.
Trunk rotation: Laying on your back with knees bent and together slowly let your knees go to one side - allowing your trunk to rotate. Switch to the other side. If that does not bother you, you can progress to have one leg straight and let the other knee hook over it - allowing the spine to rotate more. There should be a slow stretch in your spine.
Cat / Camels: On you hand and knees - you can arch your low back up and down. Focus on a slow stretch trying to move from your lower back and pelvis. Many times people arch their backs but move mostly from the mid-back or thoracic spine, which does not stretch the lower back as well.
More importantly - back stiffness every morning indicates that your mechanics are not working correctly. Usually morning stiffness indicates that the day’s before activities were too much for your spine to handle. Like working out for the first time - your muscles are sore the next day. This could mean that your sitting or standing postures at work are incorrect, to the way you walk or exercise puts too much stress on your back. There are many treatments to help address your back stiffness. At the practice I work at - we focus on manual therapy to help improve the lumbar vertebra movement and its surrounding tissues or intramuscular manual therapy (formerly known as trigger point dry needling) to treat muscle or fascial restrictions in the spine in such muscles as the multifidus, quadratus lumborum, or psoas. We also prescribe proper exercise progressions to stabilize your trunk and hips, as well as assess your movement patterns and postures in your daily activities. By improving the movement and stability at your back many times patients feel less morning stiffness as the area has better mobility.Pelvic tilts: Laying on your back with knees bent - rock your pelvis back - flattening your back against the bed and return to neutral, and if it doesn’t bother you progress to arching your back a small amount. Oscillate back and forth. ... More
National Academy of Sports Medicine answered:
If you have stiffness and tightness in the back in the morning then you need to work on improving the flexibility of your low back and hips and strengthening the core muscles to take some of the tension of your low back muscles. To relax your low back and hip muscles start engaging regularly in self myofascial release with a foam roll of the low back, glutes and hip flexors, these muscles typically become excessively tight in most people who sit for their job. Foam roll each of these areas for 30 seconds per area especially focusing on any sore spots or trigger points. Some common stretches for the hips, hip flexors and low back include camel/cat, cross leg stretch hip flexor stretch and 90-90 stretch.
To perform the camel/cat stretch position yourself on the floor on all fours with your head and spine in neutral alignment. Gradually, and slowly start alternating between arching and flexing your back creating the shape, a camels hump and a cat arching their back. To perform the cross legged stretch lie flat on the floor with your back and shoulders flat on the matt and your legs extended straight out, and arms straight to your sides forming a T shape. Raise one leg cross it over the body so that your back and hips must rotate until you feel a stretch in the spine and upper leg. Keep your shoulders on the matt at all times and keep your head, and neck relaxed and flat on the matt at all times. To perform the hip flexor stretch, kneel on the ground on one leg with your other leg out in front bent at 90 degrees. Keep your torso completely upright core engaged spine in a neutral position. Shift your weight forward while at the same time contracting your glute on the same side as the stretched hip flexor, and extend the same side arm over your head. Shift your weight forward until you feel a stretch in the hip flexor region hold this position for 30 seconds, repeat on the other side. To perform the 90-90 stretch sit on the floor with one leg in front of you and the other leg behind you. Take the leg in front you and fold it so it is bent at a 90 degree angle with the heel towards the body as if crossing your legs while sitting. Sit down into the stretch until you feel a stretch in the glutes and upper hamstrings area. Hold for 30 seconds per side. To strengthen the core perform the prone iso ab hold, lie face down with your elbows placed on the floor, body parallel to the floor with core engaged and spine in neutral alignment. Hold this position for 10 seconds then relax, repeat for 8-10 repetitions.If you have stiffness and tightness in the back in the morning then you need to work on improving the flexibility of your low back and hips and strengthening the core muscles to take some of the tension of your low back muscles. To relax your low... More