Knuckle Up Training Center

This place is home to me! The trainers really care about their clients and members. You won’t find any gym like this in the bay area. The classes they offer can really help you meet your goals quick, and always with great music!

The Knuckle Up trainers, classes and bootcamps are the best all around. I get an awesome workout everytime. I love the Sculpt, TRX, Tae Bo & Beat Down classes as well as the ⁶⁰⁄₉₀ day MaxOut Elite Bootcamps (which is my ultimate favorite! I have gained energy, stamina, strength, and lost weight with this program). Coaches AJ & Cheryl have made it their passion and dedication to ensure their members attain their best fitness goals. I’ve joined other fitness clubs, but none of them don’t come close to the awesome way I feel when I finish my workouts at Knuckle Up. The staff and fitness programs are all exceptional! Come check them out…

This gym has become one of the most memorable fitness community ive ever been a part of (and i have a fair share) Aj and Cheryl truly care about you and your goals and there is no feelings of judgement to be found!!! All the staff and members have become people I would call my friends! They are very motivating, positive, and personable. I have even recruited people to this gym who have thanked me for introducing them to Knuckle Up. They even take part in group activities like: spartan races, races/​runs, and any fun athletic competition going on! The sense of comradery here has made me never want to leave!!! I would give this place more stars if I could!

Knuckle Up is the very first gym I’ve ever stepped foot into, and I’ve never turned back. Being a non-​athletic person jumping into any type of fitness workout was, of course, scary. But as soon as I tried out a class I never felt more welcomed. From self defense to cardio Knuckle up has a wide range of classes that appeal to the entire family! My suggestion would be to just try it out, because you’ll be signing up for more than just a mere membership. You’re signing up for satisfaction in ones self, wellness in the mind and body, and results.

I miss this place! AJ sold me on training to loose weight and a couple weeks in I fell in love with the sport! San Francisco has no place that comes close to knuckle up! I didn’t once feel uncomfortable when I started jujitsu even though I had no idea what I was doing when I started. 5 stars hands down!

Knuckle Up is one of the best things to come into my life in 2014. I wish I knew about this gym earlier but so glad I do now. The instructors at KU are motivating and inspiring folks and really down to earth. I highly recommend trying Cheryl’s TRX or Tae Bo classes and AJ’s cardio & Tae Bo classes as well! Music is always on point too! The other day, AJ had some Public Enemy bumping during sculpting which set the tone. The cool thing about this place is that it feels like a real fitness community. Humbled to be surrounded by a lot of fierce women and men!

Bring your kids some were else this place is not good it’s a money making business. The people have no ethics towards newer students I highly recommend to train somewhere else to take your kids or your self and it’s hard to cancel you need to be 50 miles away to cancel who in their right mind would train across the east bay pay 2 tolls man the regular gyms let you cancel if u move at least 29 miles it’s your choice you make the decision

I have been going to see Denise since June and I have to say she does a great job. She is very motivational, encouraging and inspiring! I am not in the best shape but with Denise’s help I have slowly been losing weight and gaining strength through the intense 30 minute sessions we have about twice a month or more if schedule allows me to. I really look forward to them now. It’s hard in the beginning but I have learned a lot and what I am capable of doing. Thanks Denise!!!

I just had the single best work out EVER! Thank you knuckle up! I WILL be back!

Best place ever! I had to leave in November because I found out I was a high risk pregnancy. As I had an emergency c– section and only 8 weeks after the surgery I’m just counting down when I’ll be able to go back. Classes are AMAZING, Denise, Cheryl, and AJ really take care of the individual in a group setting. The music really gets you motivated. This is a hole in the wall business, if you want to pay to get your butt whooped then this is the place to go.

Seriously cannot believe the one-​star reviews– yea, yea, you’re entitled to yours, but so am I.
When I used to live in the area, I would be here every day after work and for tae-​bo on saturday mornings. I loved that Denise, AJ, and Cheryl really kick your butt to house/​Vegas/​EDM style music. I also love the boxing class. The place itself does not look fancy but it is what it is = a kick ass place to get your cardio in along with fighting classes for all ages. I think its great they also hold occasional challenges (most fat loss/​most weight loss) and have prizes such as free membership for a period of time, etc.
I find it very hard to believe that this gym or any other would charge you for 4 months after the fact– I canceled mine when I moved and did not experience such an issue. I did however buy the 10-​pass class for when I do visit my family on the weekends and can get a cardio workout in.
I say try it for yourself. There are all kinds/​sorts of people here: thick, thin, young, older, beginners, novice, expert. You’ll fit in no matter what shape you are in.

The Kickboxing might be good, but this is truly the worst run business I have dealt with in years. You can’t run a business on «good vibrations.» We tried to cancel our membership in September, it’s January and they are still charging us. It’s like some horrible joke, that you can’t believe is true. After a bad Unilocal review, and a BBB complaint they agreed to refund us for all these months, but no check yet, and we JUST GOT CHARGED AGAIN for January. Their excuse was oh we forgot. That doesn’t fly for a business. If all the customers just forgot to pay for their gym fee, Knuckle up wouldn’t be in business very long. I’m glad to see this one star review is dropping them from a five star business, as any business with the customer service they have displayed should not be considered 5 stars.

So far I’ve been going to this gym for a year and have lost almost 30 lbs. like everyone else has said, the workouts kick your a$$ but are fun! The trainers are great and keep you motivated! My kids love the muay Thai classes! All around great gym!

This gym is the best! Every time I go, I get my butt kicked no matter what type of training it is. The trainers keep you motivated, are encouraging, keep the music danceable, and always challenge you! I’ve done p90x, insanity, chaLean, etc etc… I’m always looking for a good workout and this is definitely a really great one. They also keep their classes interesting. There is a wide mix of cardio, body sculpting, and all levels of MMA. Fun fun fun!

Love this gym! Great trainers friendly people!
Trainers wil kick your a**! If you want a good workout come to knuckle up!

The trainers are awesome. Friendly staff.
If you want a great workout, this is the place. Everytime I walk in here, I walk out feeling 10 times lighter and stress free.
I highly recommend the Muay Thai class for adults and for kids! It’s a great workout (Warning: You will sweat a river =P) plus if you’re into the fight game, this is the perfect class to get you started. Coach Dino is awesome and he’ll keep you on balls of your feet! Literally! =)
Also check out the Taebo and Boxing classes as well. I believe they offer Zumba too. You’ll love it!

Best group exercise classes nowadays. (comparable to basketball/​wrestling practice back in high school). I regularly attend boxing class, sometimes muay thai, and my favorite– TAE BO. Now, when you hear ‘tae bo’ you may be skeptical like I was but I tried it because it was free. and boyyy was I surprised. The uptempo loud music gets me in the zone! Sexxytime!
Come by, fill out a form, try a class for free. Tell them Sheila sent you. They’ll probably hook you up with a good membership deal, since I’ve referred several people already. No, foreal.
Check out their class schedule at
ENJOY!

I love this place. The staff is attentive and friendly. Much better than walking in to 24 hour fitness and feeling ignored or your like a bother to assist!
The trainers are awesome, the classes are always filled with new moves to challenge you and keep you on your TOES!
Aj Denise and Dino are great trainers! Go try a class, im sure you’ll love it!

I’ve been going here for the past week for tae-​bo and i absolutely love it.
Trainers and staff are super helpful and friendly– they give you advice to how to reach your goal etc. AJ & DENISE = AMAZING. They make the workout 10X more enjoyable.
I get a good workout from the classes, and plus if your still not sure if this is the place for you, they offer free trails of each class on your first time :) Highly recommended.

ok I went to their open house to check it out. and IT WAS THEE BEST workout I Ever had! I usually go to 24 fitness but SCREW THAT! (no disrespect) I still go to 24 to use a treadmill or ellipitical but if you’re looking for a Challenge, change, or need to step up on the workout scence. THIS IS THE PLACE TO BE!
Tae-​bo, Muay Thai, Kick Boxing, BJJ, TRX– they got it all–
AJ and Denise along with staff are WONDERFUL– and VERY helpful. This first week that i’ve been going I’ve lost inches and pounds– but to me its not so much about that anymore. I just LOVE the workout. haha I can’t shut up about it :) Seriously– If you wanna CHANGE– KNUCKLE UP BRINGS IT– AND THEN SUM!