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I’ve achieved terrific results working with John Spongberg as my personal trainer. After 30 years in a stressful and sedentary job, I felt it was time to get some help to improve my fitness and health. During our initial visits, John assessed my mobility, flexibility, strength, and general fitness. John developed a specific program to increase my core stability, strength, balance, and … [Read more...]

"I found John to be the best fitness trainer I have ever used. He deeply cares about his clients and their physical health. He also seems to truly understand how the body works and how it is interconnected. I didn't even know I had hamstrings." Larry Krause Mill Valley … [Read more...]

Whether you're in SF, the East Bay, Sonoma County, or Marin County, contact John if you want to work with a trainer who's very knowledgeable & thorough, a great motivator, extremely patient, and a truly nice person. Since April 2008, I've been fighting decades of inactivity, and John's help has made a tremendous difference in my general energy level, endurance in demanding situations, … [Read more...]

John is excellent at working with people who have had surgery or injuries. He finds what a client's limits are and tailors a rebuilding program. He's very patient and kind. John Isaacs Novato … [Read more...]

"He was really tuned-in to the physical, physiological, lifestyle and emotional challenges impacting my overall fitness. I would recommend him to anyone needing some support and guidance to better health." Barbara Saxby San Rafael … [Read more...]