top of page
Modern-Red-and-Yellow-Weight-Room.png

Meet Keith Collins, Your San Francisco Personal Trainer

I help adults build strength, improve mobility, and develop the confidence to lead active, capable lives.

KC Fit San Francisco

A Coach Who Understands What It Means to Start Later

My serious fitness journey began later in life, so I understand the hesitation that can come with starting, returning after a break, or learning to train as your body and priorities change.

​

That experience shapes the way I coach today. I meet you where you are, explain the purpose behind the work, and build progress one step at a time. My goal is to give you the structure, support, and confidence to keep moving forward.

Modern-Gym-Weight-Room-Perspective.png

Credentials Backed by a Commitment to Learning

01.

NASM Certified Personal Trainer

03.

Fitness SF Senior Fitness Specialist

02.

NASM Certified Nutrition Coach

04.

CPR/AED Certified

05.

NASM Certified Corrective Exercise Specialist (CES)

My education supports a practical coaching approach centered on strength, mobility, proper technique, and sustainable progress.

Choose the Training Experience That Fits You

0c9515e0-d42c-4d75-90fe-f7054b12724f-2026-10-20.png

Your Starting Point Comes First

Before creating your program, I take time to understand your goals, training history, current abilities, concerns, and what you want to accomplish.

man-working-out-with-suspension-straps-at-gym-2026-09-21-22-50-31-utc.jpg

Your Program Progresses With You

Your exercises, resistance, and level of challenge will evolve as you learn, adapt, and become stronger. Progress should be purposeful, not rushed.

active-adult-man-using-exercise-machine-at-gym-2026-09-23-01-27-44-utc.jpg

Education Is Part of Every Session

I want you to understand what you are doing and why. Clear instruction helps you improve your technique, train with confidence, and take an active role in your progress.

Professional Coaching Without the Intimidation

KC Fit San Francisco offers focused, supportive coaching without the intimidation of a one-size-fits-all fitness program. You will receive honest guidance, personal attention, and a plan built around your life. Training is provided at Alex Fitness in the Castro. No gym membership is required.

bottom of page