San Diego · Performance Coach
AlexKosinski
Transform Your Body & Mind with Coach Kos
12+ years of experienceFormer Division 1 athlete
Transform Your Body & Mind with Coach Kos
Alex Kosinski is a performance coach at Legacy Performance Institute San Diego, 4030B Sports Arena Blvd, San Diego, CA 92110. Their coaching focus is body recomposition, holistic & mindset, and nutrition, and their profile highlights 12+ years of experience and Former Division 1 athlete. Alex's profile does not list specific certifications, so ask about credentials at your introduction. Your first consultation and introductory session is free, and no membership is required to train with a coach.
¡Hola! I’m Coach Kos, a former Division 1A college football player turned passionate personal trainer. I’ve personally experienced the power of transformation, losing 115 pounds and achieving a physique I once thought impossible. Now, I’m dedicated to helping you do the same.
I believe in a holistic approach to fitness that encompasses mental, physical, and spiritual well-being. I’ll guide you to:
With over 12 years of experience in elite-level fitness and athletic training, I bring a wealth of knowledge and expertise to my coaching. I specialize in:
Ready to Transform?
If you’re ready to embark on a journey of transformation and achieve your fitness goals, contact me today. I’m excited to be your partner and guide on your path to a healthier, happier you.
Contact Coach Kos today and start your fitness transformation!
Phone: (619) 736-4350 Email: coachkostraining@gmail.com
Alex's profile does not list specific certifications, so ask about credentials at your introduction.
Beyond certifications, the profile highlights: 12+ years of experience and Former Division 1 athlete.
Every coach at Legacy works independently inside the facility, which means you choose the coach, and the coach builds the program. No membership is required to train with a coach. Coaching is booked directly with the coach you choose.
Alex's profile lists body recomposition, holistic & mindset, and nutrition as the main focus areas.
Body recomposition is the goal of losing fat and building or keeping muscle at the same time, so the scale matters less than what the body is made of. It is slower to read on a bathroom scale and more durable than a crash diet, because the training signal that tells the body to keep muscle stays on while energy intake is managed.
Your coach records starting measurements, movement quality, training history and current eating habits, so progress is compared with your own numbers rather than a generic target.
Programs are built around progressive strength work for the major muscle groups, with the load, volume and rest chosen for your experience level and schedule.
Food guidance is practical: protein targets, meal timing that matches your day, and adjustments when progress stalls. Coaches work within their scope and refer out for medical nutrition needs.
Measurements, photos, training logs and how you feel are reviewed on a schedule, and the plan changes when the data says it should.
Every plan is built around the individual, so your coach will adjust this. As a general shape, the first four weeks of body recomposition coaching tend to run like this.
Measurements, photos, a movement screen and a look at how you eat and sleep. The first sessions teach the main lifts with moderate loads.
Training days settle into a pattern you can keep. Protein and meal structure get attention before anything fancy.
Weights and reps start to climb as technique holds. You begin to see which habits are helping and which are in the way.
Numbers are compared with week one, what worked is kept, and the plan for the next block is set.
Holistic and mindset coaching treats training as one part of a larger system that also includes sleep, stress, habits and the way you talk to yourself about progress. The aim is a routine you can keep up for years, not a six-week sprint that ends when motivation does.
Goals beyond the gym. The first conversation covers what you want your days to feel like, not only what you want your body to look like, and the program is built to serve both.
Habit design. Coaching focuses on small, repeatable actions with clear triggers, so showing up becomes the default instead of a daily negotiation.
Nutrition coaching turns training goals into eating habits that are specific enough to work and flexible enough to survive a normal week. It covers energy intake, protein, food choices, timing and the routines around them, and it is paired with training so the two support each other.
An honest food review. You and your coach look at what you actually eat on a typical week, including the meals that are hard to change, before anything is prescribed.
Targets you can act on. Guidance is turned into simple daily targets and swaps, not a rigid plan that falls apart the first time you eat out.
The free introduction is your chance to see whether Alex is the right fit. These are good questions to bring for body recomposition coaching, and any coach worth hiring will answer them plainly.
Comparing is smart. These coaches at San Diego share Alex's primary focus: Afolabi Adeoti, Conscious Body Recovery, Lauren Aros, Lydia Flowers, Martin Dowers, and Ryan Pearl. Or browse the full San Diego roster.
Alex coaches at Legacy Performance Institute San Diego, 4030B Sports Arena Blvd, San Diego, CA 92110, in Point Loma and Sports Arena. It is a private performance facility, not a public gym, so sessions run without a crowded floor or a wait for equipment.
Hours: Mon–Fri 6:00 AM – 9:00 PM · Sat–Sun 8:00 AM – 6:00 PM · 24/7 for VIP Access members.
Clients come from San Diego, Point Loma, La Jolla, Pacific Beach, Mission Bay, and Ocean Beach and the surrounding area. Get directions or see the full Legacy San Diego facility.
Legacy is a private training facility, not a gym you join. You choose your coach; your coach builds the program.
Use the form below or call (760) 579-9286. Your first consultation and introductory session with a Legacy coach is free, with no obligation.
Alex learns your goals, history and schedule, looks at how you move, and explains what the first weeks would look like.
Coaching is priced by each coach. Alex quotes your rate after the introduction, so there are no surprises.
Sessions are booked with Alex at San Diego. VIP Access Pass members receive a personal key fob and 24/7 facility access.
Alex Kosinski coaches at Legacy Performance Institute San Diego, 4030B Sports Arena Blvd, San Diego, CA 92110. Hours are Mon–Fri 6:00 AM – 9:00 PM · Sat–Sun 8:00 AM – 6:00 PM · 24/7 for VIP Access members.
Alex's profile lists body recomposition, holistic & mindset, and nutrition.
Alex's profile does not list specific certifications. Ask about credentials and experience at your free introduction, or call (760) 579-9286.
Use the introduction form on this page or call (760) 579-9286. Your first consultation and introductory session with Alex is free, with no obligation.
Coaching is priced by each coach, typically per session or as a package. Alex quotes your rate after the free introduction, so you know exactly what you are committing to before you commit. No membership is required to train with a coach. Coaching is booked directly with the coach you choose.
You meet Alex, tour Legacy San Diego, talk through your goals, history and schedule, and leave with a clear picture of how the work would go. There is no obligation to continue.
Alex's profile centers on body recomposition coaching, and clients who seek it often include people who want to lose fat without losing the muscle they have, lifters who have plateaued and want a structured approach, and anyone who has dieted before and regained the weight. The best test is the free introduction: if the plan makes sense to you, you have your answer.
It is gradual by design. Most people see measurable changes in strength and measurements over several weeks, with visible change building over a few months, and the pace depends on training history, consistency, sleep and food. Your coach sets expectations from your own baseline at the free introduction.
Not always. Some people do well with counting for a while, others with portion habits and protein targets. Your coach picks the lightest method that still gets results for you.
Your first introduction and session are free. Tell us a little about your goals and we will set it up with Alex Kosinski at San Diego.
This is general fitness information, not medical advice. Check with your physician before starting a new exercise or nutrition program, especially if you have a medical condition, an injury, or are pregnant.
