About Maple Tree Cancer Alliance®

The work of Maple Tree Cancer Alliance® is deeply rooted in the personal experience of its Founder and Director, Dr. Karen Wonders. Her passion to study the effects of proper nutrition and exercise in the battle against cancer was inspired by the memory of her grandfather, Robert Kellermann, whose lifelong love of personal fitness only seemed to grow after he was diagnosed with the disease while in his early eighties. The positive impact of exercise on Mr. Kellermann’s health and quality of life had a lasting impression on Dr. Wonders who sought to honor his memory by making cancer research her life’s work.

The legacy of Mr. Kellermann’s energy and enthusiasm for life is even woven into the organization’s name which gets its inspiration from the three towering maple trees that sit at the base of a large hill that was once his front yard. The seeds of this dear and vivid memory have grown to become the Maple Tree Cancer Alliance, in the hopes that they would provide shelter, hope and healing for a new generation, and many more to come.

Our Team

At Maple Tree, each Exercise Oncology Instructor holds a Bachelor’s degree in Kinesiology, as well as our nationally recognized, NASM-accredited Exercise Oncology Instructor certification.


Maple Tree Cancer Alliance® is working to improve the quality of life for those walking through cancer treatment through programs and emotional support.


At Maple Tree Cancer Alliance®, we have developed a solid research program aimed at studying the effects of regular exercise and proper nutrition in cancer treatment.

Work With Us

We create individualized exercise programs to help people with cancer THRIVE during their recovery. We teach cancer patients how to implement a healthy lifestyle.