About Us
Jin Kim
Founder, Personal Trainer

Jin Kim, Silicon Valley personal trainer
Jin began his career as a personal trainer in 2001. He’s always had a passion for sports and fitness, playing various competitive sports such as track & field, cross-country, and soccer.
Jin has had the unique privilege of receiving specialized training from world-class athletes such as Valery Fedorenko, a World Champion kettlebell athlete. Valery is the current 80kg World Record Holder in the Biathlon (Jerk & Snatch) under the original international rules. He is credited as the first man to Snatch 32kg 100 reps each hand within 10 minutes. Valery also has the special designation of being the first 80kg World Champion (1993) in the history of the Sport of Kettlebell Lifting.
Jin learned his weightlifting techniques from Jim Schmitz, a three-time US Olympic Team Weightlifting Coach (1980, 88 & 92) and the USA Weightlifting President from 1988-96.
Jin loves to help clients exceed their own expectations when it comes to their health and fitness goals. In his off-time, he plays golf whenever his wife will let him.
CERTIFICATIONS
National Academy of Sports Medicine
American Kettlebell Club Coach
USA Weightlifting Sports Performance Coach
TRX Suspension Training
SPECIALIZATIONS
Kettlebells
Functional Training
Sports Performance
Olympic Lifting
Hypertrophy Training
Strength Training
See Jin in action on the KRON 4 “Best of the Bay” TV show:
Seisha Lock

Seisha Lock, personal trainer in Redwood City
Personal Fitness Trainer, Sports Specialist, Group Exercise Instructor
Seisha graduated from the University of Southern California with a Bachelor’s of Science Degree in Kinesiology. Continuing her education in fitness, she spent two years working in a physical therapy office, one year interning as a lab assistant in the USC Kinesiology Department, and then went on to receive her personal trainer certification from the American Council of Sports Medicine.
Seisha has also participated in swimming, volleyball, basketball, and track and field. She continued to play competitive volleyball in high school and college, and helped lead her team to numerous local and national titles. An ACL injury sparked an interest and a passion for rehabilitation, fitness, and exercise.
Her energy, creativity, and passion for fitness drive her to make training safe, effective, fun, and educational. As a fitness professional, her goal is to develop and implement an individualized approach to exercise, as well as, teach people how to train for not only personal goals, but also how to train for life. Using a variety of teaching techniques, she is able to demonstrate effective and functional methods of exercise. Being from Hawaii, Seisha also loves the outdoors, especially surfing, hiking, and waterfall diving.
CERTIFICATIONS:
• American College of Sports Medicine – Certified Personal Trainer
• Bachelor’s of Science Degree in Kinesiology
• TRX Suspension Trainer
• Turbo-Kickboxing Certified Instructor
• Zumba Certified Instructor
• American Heart Association — CPR Certified
SPECIALIZATIONS:
• Physical Therapy and Injury Rehabilitation
• Sports Conditioning
• TRX Suspension Training
• Functional Training
• Body Sculpting and Toning

American Kettlebell Club Coach
USA Weightlifting Sports Performance Coach
National Academy of Sports Medicine
TRX