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Train & Transform

Transform Your Body, Your Mind & Your Life

Sauna

Virtual Training

We offer a one-on-one video training experience with programs uniquely designed to fit your busy lifestyle. Available from the convenience of your home, personal gym or travel destination.

Personal Training

Private training sessions at your home gym, work gym, or a private fitness center by you. We make it easy for you to reach your goals by providing convenience and flexibility.

Custom Fitness Plans

A unique, customized training plan available on your phone. Your plan is complete with digital demonstrations of each excersize and can be synced with your fitness wearables to track workouts and sleep.

OUR MISSION

At Keen Personal Training, our mission is to empower clients by making fitness and longevity a top priority, recognizing that proactive health choices lead to a happier, more fulfilling life. Duncan's personal experiences with loss reinforced the importance of long-term health, shaping the philosophy that fitness has zero disadvantages. Keen Personal Training was built to help busy professionals integrate fitness into their lives without sacrificing career success or personal responsibilities.

Our approach goes beyond just workouts—it’s about education, resources, and expert coaching to create sustainable, life-changing habits. The goal is to show clients that they don’t have to choose between success and health; they can achieve both. By fostering strong relationships and providing the right tools, Keen ensures lasting results, helping individuals build a solid foundation for a healthier, more fulfilling future.

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OUR LOCATIONS

Our premier gym locations are strategically placed across Manhattan, from the vibrant energy of Soho and Chelsea to the bustling hubs of Midtown East and South. Whether near the iconic Flatiron or the artistic West Chelsea, each offers a prime fitness destination in the heart of the city.

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Chelsea

137 5th Ave
10th Floor
New York, NY 10010

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SOHO

598 Broadway
5th Floor
New York, NY 10012

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Midtown East

230 East 53rd Street
2nd Floor
New York, 10022

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Midtown South

54 West 39th Street
3rd Floor
New York, NY 10018

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Flatiron

1 East 28th Street
2nd Floor
New York, NY 10016

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West Chelsea

123 West 18th Street
Cellar
New York, NY 10011

OUR TEAM

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Duncan

Owner/Lead Trainer, B.S in Health Science: Health Promotion, ACSM-CPT, CSCS, Pre-Post Natal Certified

Fitness is the most essential priority in my life. I’ve learned that in order to show up for the people that matter the most to me, showing up for myself is essential. I prefer to lead my example, be a practitioner of the art of training. Making health and fitness a top priority has a huge impact on other important areas of our life. That impact helps get and keep things in alignment. My clients can trust me to be a resource in their life. They can trust that I care about them and the relationship we build together. I am all in with them every step of the way, and I will be all in for you too.

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Yadhira

ISSA - CPT

I am passionate about helping people develop strength and functional movement in order to live a more fulfilling, healthy life. Additionally and more specifically, I am passionate about redefining strength as something that is attainable for women as well. I focus on strength and conditioning, and I create custom plans for everyone. What makes me a great coach is that I meet you where you’re at and provide a holistic approach to your fitness goals by tackling all areas of your life that also impact your journey, like your stress management, mindset, and relationship with food. I am excited to be part of this journey with you.

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Mitch Senat

I discovered my passion for fitness in 2010 while training for the Golden Gloves, balancing intense workouts with managing a top NYC nightclub. I competed in the Golden Gloves finals at Madison Square Garden, showcasing discipline and determination. I hold certifications in personal training, Olympic lifting, and nutrition, specializing in strength training and holistic health. My coaching career began with young athletes and has expanded to private clients seeking transformative results. I also lead exclusive fitness boot camps in Jamaica and Austin, TX, inspiring others through my journey.

OUR PROCESS

Schedule a phone call to talk about your goals and lock in a time and place to meet

We meet you for a complimentary session at your most convenient location

We do a thorough strength and movement analysis

We develop clarity around your fitness goals

We design a strength and fitness program unique to your lifestyle and goals

TRANSFORMATIONS & TESTIMONIALS

WHY CHOOSE KEEN?

We believe our customers' experiences speak for themselves, and their 5-star reviews truly reflect the quality and service we strive to provide. Rather than just telling you, we'll let their words do the talking!

Jeannie Witmer Chapin

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I’ve trained with Duncan throughout my second pregnancy. It has felt great getting a solid workout in each week throughout my pregnancy, allowing me to continue to feel strong and fit. He has thoughtfully curated the workouts to continue to push me but also to focus on mobility exercises that alleviate the aches and pains of pregnancy and will prepare me for a smoother childbirth and recovery. He is always open to adjusting our sessions and specific exercises to meet me where I am. He has a kind and thoughtful way of engaging with his clients and is a joy to be around.

Danielle Erlich

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Duncan is extremely professional and a pleasure to work with. He cares to understand your goals and makes sure your needs are being taken into consideration. He is motivational and takes the time to walk you through the excersize which is exactly what I said I was looking for. I am very happy I finally found a trainer that I enjoy working with and am already feeling stronger.

Smitha Santanam

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Duncan and I have been training together for the last 9 months, and it’s truly the best thing I’ve ever done. Duncan is a tough but fair and patient coach, and he has shown me that I’m far stronger and more capable than I ever thought I was. He has also made working out enjoyable for me again, and I look forward to our sessions every week. On top of being an incredible coach, he’s also extremely punctual, organized, and always manages to squeeze me in when I have to change our usual schedule. I’m grateful to Duncan for helping me build a strong foundation, and I’d absolutely recommend him to anyone looking to grow/build upon their fitness skills!

Leah Freedland

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I worked with Duncan for the second and third trimester of my first pregnancy and had an A+ experience. Duncan is incredibly talented - he comes up with creative, challenging, and fun workouts that make you feel better physically and mentally. And, he is a really positive person who is easy to be around week after week. He is also an incredibly timely and organized person which helps make fitting sessions into busy schedules much easier. I genuinely enjoyed working out with Duncan weekly during my second and third trimester (and soon post-partum!) and give him a strong positive review.

Tara Kaminsky

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The best trainer!! I highly recommend Keen Personal Training! He’s incredibly knowledgeable about all different exercises (including my favorite pilates) and has given me great alternatives when I’ve had an injury. His workouts are unique and always challenging, and I've definitely gotten so much stronger since working with him. He’s great at tailoring sessions to my needs and always knows exactly how to keep me progressing.

Greg Silverman

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Coach Duncan has been the one consistent thing in my life for the better part of the last year and a half. over this period of time i’ve gotten to know myself deeper than ever. beyond an emphasis on form and technique, Coach Duncan has guided me through my journey in investing in my physical health - on another level. the philosophies that I gleaned from Coach Duncan (which he implements himself) will stay with me forever. Coach truly downloads and installs what’s necessary in your regimen and (with a magnifying glass) ensures that it is implemented properly. i’m very glad I found Coach Duncan; the work we’ve done together has rendered a greater version of myself!

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