Technique:

• Stand with your feet shoulder width apart
• Bend forward slowly and reach towards the ground

Primary muscles: Semimembranosus. Semitendinosus. Biceps femoris.
Secondary muscles: Gastrocnemius. Gluteus maximus. Iliocostalis lumborum. Spinalis thoracis. Interspinales. Multifidus.

Injury where stretch may be useful: Lower back muscle strain. Lower back ligament sprain. Hamstring strain. Calf strain.

Note: Avoid this stretch if you are suffering from lower back pain or knee pain. This position places a lot of stress on the lower back muscles and on the knees.