Business Details
Transform Your Fitness Journey with Personalized Training in San Francisco
At j+k fitness studio in San Francisco, we specialize in creating fully customized personal training programs tailored to individual goals, delivering real and lasting results. Our team of certified trainers combines advanced methodologies with personalized attention to address unique fitness needs, including strength training, fat loss, injury recovery, and overall wellness. We reject generic workout regimens, instead designing programs based on clients' body types, fitness levels, and injury histories while incorporating cutting-edge training techniques. Our process begins with comprehensive assessments to identify imbalances and establish baseline metrics, followed by progressive workout plans that integrate aerobic and anaerobic training, mobility work, and injury prevention strategies.We emphasize accountability through ongoing support for nutrition and fitness progress while offering collaborative training experiences that leverage our team's diverse expertise in areas like rehabilitation, sports-specific training, and functional fitness. Located in the Mission District, we serve clients across the San Francisco Bay Area with flexible training options including 1-on-1, partner, and group sessions.
Services
Personal Training
Injury Recovery
Nutrition Analysis
Strength Training
Group Fitness
Highlights and features
- We offer fully customized training programs based on individual body assessments
- Our trainers hold advanced certifications in sports medicine and rehabilitation
- Specialized injury prevention and recovery training protocols
- Flexible training options including 1-on-1, partner, and group sessions
- Comprehensive nutrition analysis and dietary guidance included
Associations and certifications
- National Academy of Sports Medicine (NASM)
What people say
Real, lasting results
Tough but worth it
Pain-free workouts
Personalized programs
Expert injury prevention
Services
Personal Training
Customized fitness programs designed through comprehensive assessments of body type, injury history, and personal goals. Our certified trainers develop progressive workout plans integrating strength training, mobility work, and cardiovascular conditioning. Clients receive continuous form correction and personalized adjustments during sessions while gaining access to expert nutrition guidance and progress tracking tools.
Injury Recovery
Specialized programs for post-injury rehabilitation and chronic pain management. Trainers with sports medicine certifications create low-impact exercise regimens that restore mobility while preventing re-injury. Focus areas include muscle reactivation, joint stabilization, and progressive loading techniques tailored to individual recovery timelines and medical histories.
Nutrition Analysis
Personalized nutrition planning integrated with fitness programs to optimize body composition changes. Certified trainers conduct dietary assessments and provide meal planning resources focused on macronutrient balance, metabolic health, and sustainable eating habits. Ongoing support includes grocery shopping strategies and restaurant nutrition navigation.
Group Fitness
Collaborative workout sessions for couples, friends, or colleagues that maintain personalized attention while fostering motivation through shared goals. Programs adapt to multiple fitness levels within the same session, incorporating competitive elements and team challenges while maintaining individual progress tracking.
Body Transformation
Comprehensive programs targeting measurable body composition changes through combined strength training and nutrition optimization. Clients receive regular body fat analysis, progress photography, and metabolic assessments to track changes in lean muscle mass and fat percentage over time.
People
Jae
Founder & Head Trainer
Certified personal trainer with NASM credentials and kettlebell certification. Former corporate designer turned fitness entrepreneur with expertise in creating judgment-free training environments. Specializes in combining design thinking with fitness programming.
Griffin
Personal Trainer
Kinesiology master's graduate with NASM certification. Former college football player recovering from ACL injury. Focus areas include rehabilitation training and sports-specific conditioning. Provides expert guidance on injury prevention techniques.
Adriana
Personal Trainer
NASM-certified trainer and mechanical engineer with expertise in biomechanics. Combines engineering problem-solving with fitness training to optimize movement patterns. Specializes in strength training for runners and endurance athletes.
Benny
Personal Trainer
Former tech professional with Ayurvedic medicine training. Focuses on holistic wellness approaches combining fitness with digestive health optimization. Specializes in working with clients recovering from chronic injuries.
Christina
Personal Trainer
Former competitive fitness athlete with expertise in compound lifting techniques. Specializes in empowering clients through strength training progressions. Provides practical guidance on maintaining proper form during barbell exercises.
Questions
What types of personal training programs do you offer?
We offer fully customized 1-on-1 training, partner sessions, and small group workouts focused on strength development, fat loss, injury recovery, and overall wellness.
How do you create personalized fitness plans?
Our process starts with comprehensive physical assessments measuring muscle imbalances, mobility, and fitness levels. Trainers then design progressive programs incorporating strength training, mobility work, and nutrition guidance.
Do you work with clients recovering from injuries?
Yes, our trainers specialize in rehabilitation training with customized low-impact programs that restore mobility while preventing re-injury through careful progression and form correction.
What areas of San Francisco do you serve?
We primarily serve clients in Mission District, Castro, SoMa, Noe Valley, and Bernal Heights, with many clients traveling from across the greater Bay Area.
What qualifications do your trainers have?
Our team holds certifications from NASM, World Kettlebell Club, and Ayurvedic medicine programs, with specializations in rehabilitation, sports-specific training, and functional fitness.
Do you include nutrition guidance with training?
Yes, all programs include dietary analysis and meal planning resources focused on macronutrient balance, metabolic health, and sustainable eating habits.
Reviews (4)
Brad S.
Sep 28, 2021
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Recently started working with J+K about two months ago. It's been a fantastic experience with a focus on flexibility, mobility, and strength. I went to J+K after discovering them online and doing a zoom consult with Jae. Jae was very warm and welcoming from the get go and had great energy. I knew it was going to be where I would feel comfortable and also learn. Jae paired me with Raymond Chow for training.
Raymond is fantastic! Just the right amount of chatting while also getting the work done. Raymond has been great to get back into the gym with....from ensuring good form and concern
Raymond is fantastic! Just the right amount of chatting while also getting the work done. Raymond has been great to get back into the gym with....from ensuring good form and concern
James L.
Sep 19, 2021
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I've been training at J+K Fitness for more than a year now and it's been a fantastic experience. My trainer Raymond is highly knowledgeable about how the body works, from helping me overcome soreness/pain to improving my muscle mass and mobility. He's highly prepared, understands my goals well, and has gone above and beyond to send me tips via text outside of the studio. When I'm traveling, we do workouts over Zoom and we don't miss a beat. The owner, Jae, is really personable and helps ensure the studio environment is fun/upbeat and safe. Everyone from the clients to the
Ishita A.
Apr 11, 2021
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I've been training at J+K Fitness for nearly a year now and have loved my experience! My trainer Joe strikes the perfect balance of pushing me harder but keeping me motivated throughout my workout. Joe is also very knowledgeable when it comes to training with a prior injury. When I first started working out at J+K, I had some issues with my knees. Joe thoughtfully designed a workout plan to strengthen them and now my issues have completely disappeared.
Jae, the owner, is friendly and really flexible when it comes to scheduling. The gym has both in-person and virtual training options and
Jae, the owner, is friendly and really flexible when it comes to scheduling. The gym has both in-person and virtual training options and
Mehrzad Zonji
Dec 30, 2020
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I've been going to this fitness studio for the last four months and have seen a significant drop in my weight while grown my understanding of my own body and knowledge of physical training thanks to the solid set of trainers at J K. My experience with all the trainers have been fantastic especially with my recent experience with Lee. He's personable, knowledgeable and will push you to ensure you're getting the most out the session. I've also had a very positive experience with Jae, the owner of the studio who provides constant guidance on nutrition and words of encouragement, and Joe, who's extremely
