What are some stretching exercises that can improve flexibility and prevent injury while walking?

Stretching exercises can be highly beneficial for improving flexibility and preventing injury while walking. Here are some stretching exercises that can help:

1. Calf stretch: Stand with your feet hip-width apart and place your hands on a wall. Step one foot back and bend your front knee. Keep your back leg straight and press your heel into the ground. Hold for 20-30 seconds and repeat on the other side.
2. Quadriceps stretch: Stand with your feet hip-width apart and bend your knee, bringing your foot towards your buttocks. Hold onto your ankle with your hand and pull gently until you feel a stretch in the front of your thigh. Hold for 20-30 seconds and repeat on the other side.
3. Hamstring stretch: Sit on the ground with your legs straight out in front of you. Reach forward and grab your toes. Gently pull yourself forward until you feel a stretch in the back of your thighs. Hold for 20-30 seconds.
4. Hip flexor stretch: Kneel on one knee with the other foot flat on the ground in front of you. Push your hips forward until you feel a stretch in the front of your hip. Hold for 20-30 seconds and repeat on the other side.
5. Glute stretch: Lie on your back with your knees bent and your feet flat on the ground. Cross one ankle over the opposite knee and gently pull the knee towards your chest until you feel a stretch in your buttocks. Hold for 20-30 seconds and repeat on the other side.

Stretching exercises can be done before or after your walking workout. They help improve flexibility, which can help you maintain proper walking posture, and can also help prevent injury. However, it's important to note that stretching should be done gradually and gently to avoid injury.