Planes of motion refer to three directions of movement known as sagittal, frontal and transverse planes. Here's why they're important during exercise, and how to program for them.

If the majority of your workouts take place in the sagittal plane, you risk creating muscular imbalances and leaving yourself susceptible to injury during lateral movements in everyday life.

Incorporating frontal plane exercises, such as the side lunge, into your fitness routine can prepare your body to move better and be more durable in daily-life activities.