Pilates

Hadyn is a certified Pilates instructor. Checkout these gym classes, also available as One-on-One or Group Training in your home or workplace.

From the Wikipedia:

The Pilates Method is a physical fitness system which was developed in the early 20th century by German-American Joseph Pilates. Joseph Pilates called the method The Art of Contrology, which refers to the way the method encourages the use of the mind to control the muscles.

Instead of performing many repetitions of each exercise, Joseph H. Pilates preferred fewer, more precise movements,
requiring proper control and form. He designed more than 500 specific exercises. The most frequent form, called "matwork", involves a series of calisthenic motions performed without weight or apparatus on a padded mat. Joseph Pilates also designed five major pieces of unique exercise equipment that should optimally be used for best results. Despite being taught separately now, Pilates Technique was always meant to combine Mat and Equipment exercises.
In all forms, the "powerhouse" (abdomen, lower back, and buttocks) is supported and
strengthened, enabling the rest of the body to move freely.

As with yoga, the human body itself is used as "weights" in training, to build strength, and flexibility is targeted, without a focus on high-powered cardiovascular exercise. It was originally used to bring injured dancers back to full fitness, the idea being more to build bodily co-ordination and flexibility than stamina or muscle strength.