I started training with Kai after I had my baby and she was Amazing! She really listened to the areas I wanted to target and created great workouts that challenged me to hit my goals (she also made each workout fun). I always look forward to my workouts each week and have been thrilled with the results. I highly recommend Kai if you're looking for a trainer who is kind, communicative, passionate about helping you with your goals, and will push you to do your best! read more

Fitness By Kai workouts are always consistent! She creates challenging, fun routines that never lack her professional training instruction. Kai is right there to share the correct training form and to remind you to breathe!!! (I forget sometimes) I recently signed up for virtual training sessions via FaceTime with Kai and she didn't miss a beat. She would tailor each workout for me and was very present and encouraging! I trained with FBK years ago to get in shape for my wedding and it was such a success that I had to come back, so thank goodness for the virtual training option! Looking forward to more virtual training sessions very soon! FBK is just the motivation I need to stay on track. read more

Kai's years of experience have truly made her an elite trainer that her clients are lucky to work with. Combine that with her understanding of the mind-body connection and overall wellness, and this is just a solid investment in yourself. Everything she does and recommends is completely tailored to my body and goals and she genuinely cares about my progress and well-being. She injects education and her own experiences at the right time to help things make sense that never did before with any other trainer and that's very motivating. I want to work harder when I understand how something can improve my body and life. I imagine she's just as gifted working with men but I'm enjoying and benefitting from what she knows about female bodies, and how movements and muscles work differently than they do with men. I will warn you though, her movements are sneaky. They don't seem intimidating but when you're done, you realize half your body is shaking, they're so effective. Her workouts are very calculated and well planned to make sure you're getting as she says "the most bang for your buck." It's just efficient and effective and if I think about how much I'll save by improving my health on things like medication and such in the future, it's kind of silly not to do this. Kai's a mom too so knows how to work with what's unique to them. She's accommodating, listens and understands, is kind and caring, and is just a fun and funny person to be around so it doesn't even feel like work. If you've ever considered working with a trainer or just need to get out of a rut, give Fitness by Kai a try. Her prices are reasonable and there's just nothing to lose. read more

Long story short: Kai has been absolutely essential in helping me develop a healthy relationship with the gym. I met Kai when I was happy with my body, but I wasn't feeling as confident as I used to. I had done some research into health and fitness and tried a few online programs but nothing stuck. I finally became set on finding a personal trainer, and let me tell you, I lucked out with Kai. This girl is incredible! She meets you where you're at and she encourages you and pushes you, but never makes you feel bad or insecure or any of that nonsense. She is determined to help her clients and that is very clearly her number 1 priority. Her workouts are stellar. I have been training with her for over 3 months now and I have seen incredible changes in my body. I went from being too insecure to post selfies to posting full body selfies showing off my abs! Working with Kai has been such a confidence booster. I think one of my favorite things about working out with Kai is that we are always doing something different each week. I have never done the exact same workout twice. She's extremely creative with her moves and I can attest to the fact that they're very effective, especially for women like myself. Kai trains everyone no matter where you are at in your fitness journey. Worth every penny. My other favorite thing is the autonomy I feel I've gained in the gym. Walking into a gym can be an extremely daunting experience, but Kai has made me feel like I can tackle anything and has shown me the ropes in how to properly use gym equipment, gym etiquette, and her own personal tips and tricks. All in all, can't say enough good things about Fitness by Kai. Let her train you, be dedicated to making healthy habits a part of your life, and give it a few months. Health and fitness is not a fad or a diet, but long term and sustainable change. Kai has been a core part of my health and fitness journey. Thanks, Kai! read more

I love having Kai as a trainer. She integrates so many different styles of exercise giving you a total body workout. The workouts move fast and are efficient. You feel so good from head to toe after every session. Highly recommend!! . read more

I am so happy that I found Kai. She brings so much fun, energy and education to each training session. I came to Kai with the goal of strengthening my body and adding mobility. I figured I would see "progress" in a few months...maybe half a year. No joke in that i felt stronger and worked out with more weight in just a FEW sessions. She knows her stuff! read more

THE BEST TRAINER EVER!!! I can't even find a word to describe how professional and friendly Kai is!! I've been training with Kai for almost 7 months now! Not only in person, but also many sessions online (during the Covid Madness)! The sessions are absolutely fun and of course VERY challenging! I can totally see the difference in my energy and strength since I started working with her! I love every single session I have with her, because there's not even a second I don't enjoy! During the Quarantine, my online sessions with Kai was the only thing helped me manage the stress and pressure! She knows exactly how to motivate you during the session and what to do to keep you going! Many trainers just guide you and watch you doing the work, but Kai does every single movement with you which makes it even more fun!! She's super friendly, nice and great at what she does!! I definitely recommend her to anyone looking for an experienced and professional trainer! read more

I have been training with Kai for about a month and a half now and I am feeling great! I went to Kai with a bad back, weak wrists and knees, and now that Ive had a chance work out and excesses those muscles I feel like a completely different person.I have never experienced a trainer with such knowledge and innovation. Kai has put her own spin on classic workouts. Excesses that are simple and low impact yet give you dramatic results. Also, one thing I have to mention is that I love how she actually does the workouts with you. Trainers I've had in the past hover their gorgeous bodies above you and expect you to take on their image. I look forward to breaking a sweat with Kai each week and I am greatful to have met such a great person. Thanks Kai!!! read more

If you are looking for or looking to work up to high energy workouts, lose weight and have fun, Fitness by Kai is the way to go. I couldn't be happier with my choice! The great part about Kai is, I just don't go into a gym workout and leave. Kai provides constant attention. I'll get texts to see how my day went (what trainer does that?), recipes and follow up calls. I am constantly reminded to stay on track and be accountable to my mind and body when I am away from the facility. The individualized attention I get is superior. I have dropped close to 13 pounds and I am changing for the better! Undoubtedly, her passion for fitness drives me! read more

Kai is a phenomenal trainer! She's been helping me get back into shape after a spinal fusion surgery. In the 3 months we have worked together my mobility, flexibility and over all fitness level has drastically increased. Not to mention I have lost close to 15 pounds. Kai is so kind, patient and creative! Each work out is challenging and varies in such variety. I highly recommend her for any of your fitness needs! read more

Kai has helped me get in to shape over the past few months and my experience with her has been better that I could have expected. Her humility, knowledge, and passion for fitness is a trifecta for the making of a great personal trainer and coach. She keeps each session interesting by tailoring our work outs to my needs and always trying new workouts/methods. On top of that, she takes an interest in me as a person which allows her to also be some kind of personal trainer life therapist. She has valuable insights in to fitness and life in general. I would recommend her to anyone and everyone looking to get in shape and make some changes to their life. read more

UPDATE! My last session with Kai was two months ago and it has now been about 8 months since I started with her. I have lost THIRTY pounds since my first session with her. Yep...not a typo. *My stats as of June 2013: Down 17 in, down 9.6 % body fat, and down 19 pounds in 6 months. Since my last weigh in with Kai (at the end of June) I have lost another 11 lbs and can REALLY see a difference in my body. My pant size in now a size 5/6!!! I am beyond embarrassed at how much weight I have gained over the last few years and I'm so damn proud of the weight I have lost so far this year. I absolutely could NOT have had these results without Kai's help. Because of Kai I have a healthy relationship with food and actually ENJOY working out both at the gym and at home. In the months that I trained with her she taught me a ton of workouts that dont involve a machine so I am able to do them in the comfort of my own home.. so if I only have 20-30 minutes to work out before/after work I can still get a crazy intense workout without driving to the gym.. it's awesome! I can't thank Kai enough for her wealth of knowledge in everything that has to do with working out, losing weight, and being healthy. I wouldnt have these results if it wasnt for her. I cant wait to see what my body will look like in these next couple of months since now I am focusing on shedding only a couple more pounds and really just sculpting certain areas. Thank you Kai for helping me feel good about my body again!! Hiring you to train me was one of the best decisions I EVER made. read more

My wife and I have been training with Kai for almost a year now, and we have seen fantastic results! My wife is down 12 lbs and 10" overall, and I am down 2 suit sizes and 3" off the waist. I have trained with several personal trainers over the last few years, and she is not your typical personal trainer. She takes a personal interest in every client, and will tailor a program specific to your needs. She even works out with you sometimes! I wouldn't say she has a specific style of training, as she pulls bits and pieces from so many different styles (olympic lifting, core-focused, yoga, cross-trainging, etc.) No 2 days are same in her gym. As a guy, I was a little hesitant to start with a female trainer, but she has proved my hesitation wrong. I have seen more result working out with her than any other trainer I have hired. I feel leaner, more flexible, and stronger in key areas I was looking to improve. She is not the cheapest around, but you get what you pay for in this industry. If you are serious about your fitness goals, and looking for an experienced trainer who will train and advise you in a professional and friendly relationship, look no further. read more

When it comes to a great trainer, it will take a lot to impress me. Kai will not shout in your face, beg you to come do your workout or yell at you if your cheat meal turns into a week. If you are excited for change- she will make it a reality. Kai is very "to the point" which is what I love about a trainer and has a no nonsense approach that is backed by science, personal experience and education. When I workout with her, she focuses on workouts that involve the whole body like burpees.... and other workouts that I try to forget about .. haha. She knows how to challenge your body but I love it.I have seen amazing results with Kai.. AND can I just say... HER BODY.. is enough to motivate you... Anyways she deserves all the credit she can get. if you are looking for change... Kai is somebody you need to contact. read more

Kai is an awesome personal trainer! She has you go through a million different exercises you never even knew existed! There are exercises I never thought that would exhaust you, so she has taught me a lot about specific exercises that target different parts of the body. I've never had a female personal trainer before, and it really does make a difference (because all I've had in the past were male personal trainers). I've only been with her for about 2 months so far and I'm already seeing great results! What I also like about training with Kai is that she not only demonstrates each exercise for you, she actually does them with you too! I really enjoy training with her. Thanks for everything Kai! See you again soon! =) read more

Close to 2 years ago I started my journey with Kai. When I started I was 5'5" and 190. Today I am same the same height :), but a completely different person at 122 pounds. This journey has been difficult,uplifting, life changing and most importantly bringing me the feeling of acomplishment I thought I would never be able to feel! Fitness by Kai has been with me every step of the way. Kai is by far the best personal trainer I have ever dealt with. This coming Wed is my last session and it's bitter sweet. What Kai has taught me will last me a lifetime! read more

Kai is a phenomenal trainer. She focuses on diverse exercises working the entire body. Kai pays attention to my form and makes sure I am getting the most out of my workouts. I highly recommend Kai Kelly! read more

Still the same service, care and professionalism! I trained previously for about 6 months and left because I had to go oversees for work. Well after sitting at a desk for 12 hours a day, I fell back into my old shape. Over weight by about 20 pounds and out of shape! I am back in Orange County from my tour and at it again. In the last 3 weeks I have dropped 5 pounds and slowly getting back to my old self. Kai, Melinda and Chris are awesome and almost two years later they have proven to have grown in knowledge, maturity and the way they treat their personal training clients! Glad to be back! read more

This is absolutely the BEST training center in the OC area. The trainers here are top notch and use their knowledge to create individual plans for each of their clients. I love the wide range of training styles offered here, My son currently works with Chris on strength, endurance and agility. This has helped him tremendously in all the sports he plays. His game performance has improved greatly in the last year and his speed has doubled. I recently started working with Kai and Chris on a diet and exercise system that has helped me drop 10 lbs already! Kai helped me with a diet that works with my crazy work schedule and is so easy to follow. Chris trains me around my schedule and makes sure I get my workouts in. I love that they keep me accountable by checking in with me when they haven't heard from me. It keeps me motivated and I know they actually care about helping me reach my goals. I can't wait to see what I look like in 3 months. I'm so excited to continue with my goal of losing weight and getting healthy. I have been to several trainers in the last 10 years and nothing compares to Fitness by Kai. They have given me the confidence to know that I WILL reach my goal and I don't want to give up. They have a true passion for what they do and it shows! read more

If you're sick of the same old gym rut with minimal results, get your butt over to Fitness By Kai! This is a great group of trainers. You'll see results FAST! I'm on week #5 and already down 2 sizes. Not only do they help you meet your fitness goals, they provide you with all the help you need along the way, whether it be a text message checking in with you or a meal plan to help you loose those extra inches. They really care about what they are doing and you can tell. My trainer Chris always mixes up my routine, so I'm never bored & always doing something fresh & innovative. The facility in Costa Mesa is beautiful! All the equipment is brand new & state of the art. I highly recommend giving them a try if your looking. read more

She really knows what she's doing and makes my work out plann exciting.....15 pds in about three weeks!!! It's time for wellness and she can bring it read more

I'm an athlete. I called Fitness by Kai with specific goals in mind. Melinda is my trainer and helped me focus on what I wanted. 10 weeks later I am feeling amazing! I'm so happy with how my body is changing! I highly recommend Melinda. read more

Fitness by Kai is a great service if you are looking for toning and training! Everyone personal trainer is personable, knowledgeable and committed to each client. I personally train with Melinda and she is kick ass! She is not only good with our workouts, but her know how about how to fuel your body is bar none. Been training with Melinda for 7 months, and am extremely happy with the results I have seen! read more

I have been training with Kai Kelly over at No Excuse for about 7 months now. I met with 2 other trainers in the Orange County area before meeting with Kai and thankfully I chose her. She has been nothing but motivation for me and the results I have got are really exciting for me. I have lost a little over 14 pounds and I love the way I look and feel! Her commitment to me has far surpassed my expectations from a personal trainer. Thanks Kai! read more

I have been working out with Kai for about a month now and the results I am seeing are phenomenal. She is super supportive, knowledgeable and knows what is going to work best for your body type. I have worked out my whole life on and off and I have never seen results this quickly. If you're able to keep yourself disciplined outside of the gym, then I can promise you that the time spent with Kai in her training sessions are guaranteed to get you where you want to be. She teaches a lifestyles rather than a "get fit quick" attitude. 5 Stars, she's amazing! read more

Kai is soooo AMAZING! I don't even know where to start. She is great, I knew I needed help to make my fitness goals happen (to be shirtless by summer) and after much online research I decided to take a session with Kai just to try it out. Skeptical at first, as I've never been with a personal trainer, or really moved much at all before meeting up with her to be honest. I came to find out that she is sooo supportive and uplifting and easy to work with and am going on 2+ months with her. She knows her stuff but she doesn't force you to know it either. She doesn't force you to eat protein shakes or all that body building crap you wouldn't eat normally, she helps you make healthy choices within your everyday life. She has this way of motivating you without making you feel incompetent or yelling at you. There's soooo much more to say about Kai, it's hard to express them all here. I am very impressed with her new location in Placentia/Anaheim Hills, it is a magnificent facility and all the trainers there are super nice and supportive. The equipment is oober clean and new looking/feeling. I honestly don't have 1 complaint or thing i would change about my sessions with Kai. read more

I have been working out with Melinda from Fitness by Kai for about a month now and I am excited with the results I am already seeing. Melinda is great at mixing things up, no two workouts are alike. The variety of each session and motivation provided to push yourself a little more each time make the workouts amazing. Not to mention, Kai and her team are very knowledgeable and always available to talk to via email, phone or text. I highly recommend Fitness by Kai for anyone wanting to make a change, no matter how big or small. Thanks Kai and Melinda! read more

Let me start by saying Fitness by Kai is great and a super friendly bunch. Back in April, I had decided to look into getting a personal trainer to get me on track with my fitness goals. So, I searched around the Internet and noticed how great the reviews were for, Fitness by Kai. Not only were the reviews great, but testimonials and results were realistic. So I inquired and was sold. I started training with Sarkis and he is wonderful. Sarkis definitely helped so much from being supportive, motivating and educating me with diet as well as exercise. I'm dedicated to being fit more than i have ever been. In the last few months I've dropped two clothes sizes, lost about 12lbs and am lean as ever. I am definitely happy with the decision I made by working with Sarkis and Fitness by Kai. I know I'll be back for a refresher session soon. I would recommend them to anyone in the OC area. They are the best! read more

I have been working with Chris at Fitness by Kai. He is an awesome trainer! I love the workouts as they are never boring. I was so tired of being on an eliptical hours a week and never losing weight. Now I workout with Chris twice a week. We do a huge variety of exercises and weights - all the while he is keeping my heart rate up. The 45 minute workout flies by. I am much stronger then when I started and I have lost 15 lbs. At age 53 - getting stronger, building muscle, and losing weight is a really big deal! He has taught me a lot about fitness, nutrition, and how they impact my overall health and weight. Chris is a great trainer. He's fun, passionate and energetic. Always professional. I highly recommend Chris and Fitness by Kai. read more

Fitness by Kai has been the greatest personal training experience I have ever had. I have been training with Melinda since last year and her personalized work out to my body has made a tremendous change in me. She has extensive knowledge in fitness, pilates and personal health and diet. I have changed so many habits and loving it. read more

I'm down 26 pounds and 5% body fat in the 4 months I've been with Fitness by Kai. I couldn't be happier with my results and trainer, Chris!

Personal training with Kai has been excuse my french bad @!s. I found her here. Man the workouts she puts me through are better than any male trainer I have trained with! She is incredibly dynamic with her exercises and I can 100% say the results speak for themselves. I waited 12 weeks before posting a review because I wanted to give an accurate review of her personal training service. Dropped from 17% body fat to 13% and have put on 12 pounds of muscle mass. Now I am ready to kick it into high gear for the summer! read more

Kai is an awesome trainer! She's the only trainer to ever get me where I wanted to be with my body! I'd totally keep going if it were still in my budget and i lived closer. Thank you kai !!! read more