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Our Certified Personal Trainers


Meet The Best Team Of Certified Personal Trainers In Central NJ 

At Be Healthy Personal Trainer, we are a team of certified fitness professionals dedicated to your health, well being and the fitness goals you strive for. Each of our certified personal trainers has a background in healthcare and physical therapy so they maintain a higher level of knowledge about the body. This expertise provided to our clients makes our fitness specialists the best certified personal trainers in Edison, Piscataway, Somerset, Metuchen and all of Central New Jersey.


Dara Grzesh, Owner & Certified Personal Trainer

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Dara founded Be Healthy Personal Trainer because she saw that the health and fitness industry lacks a specialization of personal training for seniors, post-rehab and chronic health conditions. So Dara created a fitness program to combine the weight loss and healthy lifestyle focus of a personal trainer, with the understanding of the musculoskeletal system and emphasis on injury prevention of a physical therapist. And then she made it fun! 

Dara spent four years gaining an intricate knowledge of the human body while working closely beside physical therapists at the Saint Peter's Sports Medicine Clinic in Somerset, as a trainer and assisting patients with exercise programs. As a top fitness specialist, Dara does her best to understand your challenges, help you conquer them and gain confidence in your abilities.

Each session with Dara is unique to avoid boredom through repetitive exercises, and so your muscles get the maximum benefit. Dara is beloved by her clients because of her expertise, fitness creativity and her ability to connect on a personal level with clients of all ages and demographics.


 Kassandra Rodriguez, Certified Personal Trainer


For Kassandra, exercise is a big part of her life. She believes that it is a priority to show her clients how fun exercise can be and how you can learn to make fitness a part of your everyday routine. With her knowledge of exercise science, physical therapy and military background, Kassandra always makes sure that whoever she trains with does so in a safe fashion while finding enjoyment in reaching their physical goals.

Being a member of the Armed Forces Marine Corps where exercise is a necessity, has made Kassandra very passionate about fitness and getting others to exercise. Although she is a Marine, as a personal trainer she is anything but a drill instructor. Instead, she incorporates the regimentation and discipline of the military method into each unique fitness program created for her clients.

Apart from spending her time as a personal trainer in Piscataway, NJ, Kassandra is a current Rutgers senior studying Exercise Science and has achieved an outstanding knowledge of how the body functions as we move and work out. Kassandra also has experience as a physical therapy tech for Trinity Rehab in Somerville, NJ. While there, she has gained valuable hands-on knowledge and has worked with a wide variety of patients including senior citizens, kids and adults. This experience allows her to incorporate safe and efficient techniques into each of her fitness programs.


Bryann Ricci, Certified Personal Trainer


Bryann brings specialized knowledge in strength, conditioning, and exercise nutrition to the Be Healthy team. She coaches her clients to meet their weight loss and lifestyle goals through a combination of healthy eating habits and exercise.

Prior to Be Healthy, Bry worked as a physical therapist aide at Saint Peters Sports Medicine Institute for over six years, where she assisted in rehabilitating athletes and the general population. 

Bry earned her Bachelor's of Exercise Science from Rutgers University in 2014 with a focus in Applied Kinesiology. There, she completed coursework ranging from Neuromechanical Kinesiology to Exercise & Aging in order to work with the senior population. While at Rutgers, she worked part-time as a personal trainer. As an undergraduate, she interned at a sports academy, highlighted by an NFL Combine Training Program to gain skills in strength, conditioning, and injury prevention. 

Bry has earned her Certified Strength and Conditioning Specialist certification through the National Strength and Conditioning Association (NSCA). She also completed her Precision Nutrition Level 1 certification in Exercise Nutrition. She has completed half marathons and a powerlifting competition; she also practices Brazilian Jiu-Jitsu. 


Gabrielle Nierenberg, Certified Personal Trainer

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Gabrielle graduated from Rutgers University with a degree is Exercise Science Applied Kinesiology. Her passion for exercise and movement began at a very young age. Throughout her college career Gabrielle was a member of the Rutgers University Dance Team. Since a young age Gabrielle has grown up a dancer and an athlete. She tore both of her ACLs during her high school soccer career. Gabrielle understands the struggles one may face when coming back from a serious injury or surgery. Today Gabrielle is a personal trainer as well as a professional dancer who has performed nationally and internationally in various shows.

Gabrielle is passionate about helping people live a healthy lifestyle. Any opportunity there is to help make someone's life more pleasant, she will do all she can to provide the best ideas for them. Gabrielle has experience working with various demographics including experienced athletes as well as first timers. She is not only a personal trainer, but a dancer as well allowing for her sessions to have a special flow about them. Sessions with Gabrielle are fun, challenging, and rejuvenating. 


Ailene McNamara, Certified Personal Trainer


Ailene is a recent graduate of Rutgers University, earning a Bachelor’s of Science in Exercise Science, and is incredibly excited to be joining the Be Healthy team. Her pursuit and passion in this field was initiated early on from being a multi-sport athlete in high school. She has experience in training for sports including soccer, basketball, volleyball, lacrosse, and even Irish step dancing. Her athletic career continued into college when she became apart of the Rutgers Division I Rowing team. Through all of these experiences, she has developed an unparalleled sense of drive, self-discipline, and commitment, all of which she channels into every aspect of her life. 

During her time as an athlete, Ailene suffered from a torn meniscus, bulged lumbar disc and continues to work through occasional low back pain. These obstacles have helped her to better understand necessary exercise modifications and how to overcome any setback. Her prior experience in healthcare includes working as a chiropractic technician as well as a physical therapy intern. It was through these positions that her interpersonal skills shined and her passion for helping others grew. During her sessions, Ailene implements principles from Biomechanics, Sports Nutrition, and Exercise Physiology courses as well as her current love for strength training. She strives to help others function optimally and painlessly through safe and effective training programs, which will ultimately lead to a better quality of life.