Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to stretch for free running [title] Do the triangle pose in yoga. [step] The triangle pose delivers an excellent full body stretch. The pose also strengthens the legs and develops a strong back.

Ending1: It may also improve your, which improves your overall form and strength, and force you to move and run more comfortably. [title] Do a the triangle pose in taekwondo. Ending2: To do the triangle pose, lie on your back on a yoga mat with your legs straight out in front of you. Allow your neck to hang out and your chest to remain vertical throughout the pose. Ending3: As you rotate your body to assume the final pose, keep you head, butt and ankle in a straight line. Repeat on either side to stretch both sides of your body. Ending4: [substeps] Work slowly and deliberately from side to side while standing with your arms up at your sides. Your hands should form a triangle with palms facing outward.

Answer format: ending1/ending2/ending3/ending4