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About Kelsie

Hi, I'm Kelsie! I am passionate about effective and sustainable fitness programs- ones that build muscular endurance and strength and have you feeling great but not overly exhausted and hurt once you're done. I am the fitness director at Body Mantra & Barre and lead lots of fitness classes every week but also love developing unique and fun workout programs for individual clients. I always enjoy incorporating aspects of my background in barre, yoga, pilates, TRX, and more.

Areas of Expertise

  • Strength Training
  • Flexibility and Mobility
  • Muscular Definition
  • TRX
  • Yoga
  • Injury Prevention
  • Barre
  • Corrective Exercise

NCCA Accredited Certifications

NASM Certified Personal Trainer

Additional Certifications

Exhale Barre,, RYT 200, SPIN Certified Instructor, Pilates Instructor (in progress)


BA in Psychology

Who I Especially Like Working With

Beginners, Brides-to-be, Men, Middle-aged, Post-rehab, Pre/post-natal, Student-athletes, Women, Youth

Medical Conditions Experience

Addiction, Arthritis, Artificial Hips, Back Pain/Issues, Bad Posture, Bone/Joint Injury, Breast Cancer, Cognitive Delays, Disordered Eating Recovery, Hamstring Issues, Hip Pain/Issues, Hip Replacement, Joint Pain, Joint Replacement, Knee Pain/Issues, Limited Mobility, Lower Body Pain/Issues, Menopause, Neck Pain, Obesity, Piriformis Syndrome, Plantar fasciitis, Postural Issues, Pregnancy, Rotator Cuff Issues, Sciatica, Scoliosis, Shoulder Issues, Stress, Tennis Elbow, TMJ

269 East Main Street

Smithtown, NY 11787

No Gym Membership Needed!

In-home, Outdoor or Virtual Training

Session Surcharge: $15

I have been working with Kelsie for a year. I have never felt better and stronger. She pushes me and inspires me. I have worked with other trainers in the past and have injured myself. That does not happen with Kelsie, she takes her time to get to know her client then incorporates her knowledge and expertise so I get the BEST workout with NO injuries. Highly recommend Kelsie!!!


Kelsie is truly an incredible trainer. When I first met her she immediately wanted to know my goals and put together a program tailored to my needs. She is so passionate and thorough about what she does, it comes through with every single workout. She produces results. She is very knowledgeable and truly cares. I would recommend anyone to Kelsie who needs that 1:1 attention. She has made such a difference in my life! You will be very happy, she never disappoints!!! She’s just the best in every way !!!


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