While bird dog exercises don't look exactly like a real bird dog -- humans lack tails to point with -- the exercise replicates the look of a pointer as best a human can. From a hands-and-knees position, one leg extends back while the opposite arm extends forward.

The primary TRX back-strengthening exercise is the inverted body row. Although similar to a pullup, the row, where your body is horizontal to the floor, does not work the back muscles in the same line of pull as a pullup, where your torso is vertical to the floor. The TRX is not designed to support a full pullup.

The multifidus muscle is actually a group of muscles referred to in the singular that run parallel to and the length of the spine. You can feel yours easiest in the lower back where it is thicker. The role of the multifidus is to stabilize the spine. A faulty multifidus can easily contribute to low back pain.

If you're trying to strengthen your back muscles, push-ups can help -- especially if you add in variations that target back muscles.

Improving your core strength develops muscle in the trunk of your body, including the lower back and sides. The core is made up of the abs; the obliques, or sides of the waist; and the erector spinae muscles, or lower back.

About 31 million Americans suffer from back pain at some point. It’s the second most common reason for going to the doctor. While most people with back pain have a sprain, ruptured disk or irritated joint, others suffer from chronic conditions such as inflammatory arthritis or a degenerative disease.

The trapezius muscle may be best known as a source of stiffness across the top of the shoulders. It frequently becomes tight and contracted if you sit for long hours at a desk. However, the trapezius, which covers a broad area of the back of your neck and upper back, serves multiple functions.

The back extension exercise is a maneuver utilized to work the erector spinae and other smaller stabilizing muscles of the back. Strengthening these muscles is important for a variety of reasons.

Love handles, muffin top: whatever you call lower back fat, chances are good you want to get rid of it. Spot reduction doesn’t work and may slow down your results, so don't put the spotlight on your back. Rather, take a three-pronged approach, focusing on diet, cardio and strength training to drop pounds and tone up.

Maximizing the growth potential of your trapezius, located on the center of your upper back, means training the upper, middle and lower sections of the muscle. Common practice is usually to focus on the upper traps, through shoulder shrugs.

There are several reasons your nose may be crooked, nasal fractures being one of the most common. Additionally, a feature often seen in the face of older people is a crooked and drooping nose.

Although pushups are known to mainly strengthen your chest, shoulders and arms, they also strengthen your back.