The Russian twist is a simple exercise that targets your entire core. You don't need any equipment, and it's suitable for beginners and more advanced exercisers

In order to warm up your back for a workout you need to perform stretching and strengthening exercises that warm up the muscles around the spine.

A strong back looks good in a tight tank, but also supports healthy posture and daily function. Work these muscles with resistance and body weight.

The captain's chair is more effective in training your abs than the standard crunch. Learn a variety of ways to use the apparatus.

Incorporating variety into your workout routine prevents your body from adapting, which slows results over time. Changing things up every couple of weeks optimizes your benefits. The CrossFit training program throws together many types of exercises to create routines designed to consistently challenge you.

Yoga embraces several components of health and fitness, including flexibility, breathing techniques, core training, balance and strength. Shakti refers to divine energy and a Hindu goddess. The practice of Shakti yoga centers on the sun salutation pose, or Surya Namaskar.

Dips and push-ups are musts in a Navy SEAL workout as they help you build upper-body stamina and strength.

Most back exercises are compound exercises. They work several muscle groups at one time and burn more calories than isolation exercises.

Muscle endurance training is the middle ground between strength and endurance training to improve the stamina of your muscles.

Muscular endurance lets you run long distances, and muscular strength enables you to lift heavy objects.

Body confident goddess Ariel Winter has shared her latest booty-pumping workout video on Instagram, and it's giving us serious #buttgoals.

How do you get out of a fitness rut? You have to continually ask more from your body to give your muscles the proper stimulus for continued growth.