Meet The Trainers


Anthony Amen

Sarah Dennehy

Sarah Dennehy

  My personal training journey started in college. Before that, I was never really into any aspect of fitness. I ate what I wanted, ran a 15 min/mile and couldn’t tell you the difference between a plank or a pushup. 

That all changed in college, when I began playing intramural sports. I ended up falling back on ice, giving myself major whiplash and a concussion. The impact was unreal and left me bed-ridden for three months. Pain medication, muscle relaxers and migraines became my norm, and doing simple activities such as driving became a task for me. Doctors kept telling me that the migraines would never go away, I would never be able to handle weight above my head and that there was nothing that they could do for me. It was something I refused to believe.

I wasn’t going to be slowed down by my injuries and my stubbornness and willpower drove me to find a solution. That was when I stumbled upon fitness.

Through complete trial and error, I quickly learned the technique and became obsessed with the gym. It wasn’t long until I learned how I could change my life; I managed to not only stop the migraines, but I can now accomplish things that everyone told me would be impossible. 

Personal Training has taught me how to pass this knowledge onto others. I truly understand what it feels like to be hopeless and lost. I’ve helped many different clients of all backgrounds achieve their goals; this allowed them to witness changes that they didn't think were possible. 

Redefine Fitness is my answer to all fitness questions. It's not about having the biggest muscles or being the fastest runner, rather it is about helping you redefine yourself into the best version that you can be!

NASM Certified Personal Trainer

NASM Certified Small Group Trainer

Health Psychology-B.A.

Qualified TRX Instructor


Sarah Dennehy

Sarah Dennehy

Sarah Dennehy

I began my fitness journey several years ago. I thought the way to be "healthy" was to starve myself and do hours of cardio every week, like all the magazines said. It left me feeling very restricted, dreading the gym, and worn down. It felt wrong to me, so I began doing my own research into health and fitness. By doing so, I realized that starvation and endless cardio weren't the answer- nourishing your body, incorporating strength training, and keeping workouts fun were the way to go!

Now, as a Personal Trainer, I don't see fitness as a chore but as a lifestyle. I love sharing healthy recipes, strength training (especially lower body!), and helping clients find a balance by both looking forward to their workouts and seeing results!

As a Registered Nurse, I am always updating myself on science- and evidence-based research in regards to health and fitness and incorporating it into training. I also have an advanced knowledge and understanding of the aging population and those with medical issues. I love being able to work in both areas of health and bridge these two passions together.

Whether you want to gain muscle, lose fat, target a particular muscle group, or gain confidence, I'd be happy to tailor a plan for you as an individual. 

When I'm not in the gym, I like to keep an active lifestyle by hiking, kayaking, and participating in races (anything from 5Ks to Obstacle Races to Half Marathons).

NASM Certified Personal Trainer

BSN-Registered Nurse

CPR/BLS/AED Certified


Alli Fuoco

Alli Fuoco

Alli Fuoco


I  am a healthy lifestyle personal trainer. Helping others achieve their  goals, pushing through personal plateaus, and becoming their best selves is my passion and focus; and it has been for the past 15 years. 

I fell in love with fitness after high school and we still love each other, after all this time. Like many moms out there, I took a break from my personal training career to raise my 3 beautiful daughters (and my  husband if I’m being honest). We lead an active and healthy life and have always tried to make fitness and clean eating just a normal part of our lives. You’ll find us walking the neighborhood, hiking, biking, running charity 5k races, or training for  Spartan races. 

As a certified personal trainer, my philosophy is simple - fitness is not one size fits all; that’s why there are so many amazing workouts, routines, and types of fitness equipment out there. Everyone is  different and no two workouts or people are the same. Whether you want to get back in shape after a long break (or kids),  train for an event (fitness or lifecycle), find out if your younger body still exists, or just get healthier - I want to be on that journey with  you. For you Mommy’s out there, I totally get it because I live it every day. Finding “me time” while raising kids,  feeding the family, being a mom, being a wife, and maybe working is crazy challenging. I’m here to take care of you while you make the  investment in a stronger and healthier you. Mom power!  
My style is I roll up my sleeves and work with you and support you every step of the way. I understand that going to a gym or starting a new workout can be scary and  intimidating. I will be at your side and make this as comfortable and achievable as possible - nothing’s going to stop you! Redefine Fitness will be your safe zone and happy place. 
 A healthier you exists and my job is to help lead you there.

And just to make it official, I am a NFPT-CPT Certified Personal Trainer and I am a qualified TRX instructor.


Jason Cruz

Alli Fuoco

Alli Fuoco

  Growing up, I struggled with my weight. After learning some basic exercise skills and making changes to my diet, I was able to gain control of my weight and become fully engaged with the health and fitness world. Learning more and talking about fitness helped make it become my true passion. Even though I already had a background and experience in the medical field, I wanted to make fitness my career and decided to get my first Personal Training Certification. After a few years of training clients, I decided to earn my A.S. Degree as a Fitness Specialist from Suffolk Community College, as well as a second Personal Training Certification through A.C.E. Since then, I have been training clients at different fitness centers all over Suffolk County, as well as conducting private/home sessions. I have continued to learn and apply techniques from all types of exercise styles so that I can be the best trainer possible. I love motivating clients and helping them set and reach all kinds of goals. I look forward to working with my clients at REDEFINE FITNESS and making a positive impact on their health and wellness!

never give up by anthony amen