Steve D.
10/10/2019
I've been training with Mark for almost 10 years now. He's a one-man force of nature. I've gotten stronger than I ever was before and built my endurance -- both mental and physical. Mark is...
Alter+Center
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80 Missouri St
San Francisco, CA 94107
History
While so much natural human functioning is being replaced by machines, we remain champions of humanity's natural potential to be supremely vital and active - conscious and creative through a long and fulfilling life. For a decade, we served as master trainers and fitness directors at prominent health clubs (Club One, Sportsclub/LA, 24hr Fitness). We watched how most customers struggled to motivate themselves through tedious workouts in impersonal environments and follow impractical diets and fitness programs not connected to real life. We realized humans were never meant to
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Reviews
5.011 reviews
Jennifer O.
11/20/2007
I'm never bored with Mark and Alexis. They will create the most invigorating experience for your mind and body. You will exit Alter Center quick-witted and fast of foot after Muay Thai...
Gary S.
5/20/2014
I can remember the first time I talked with Mark and Alexis, and discussed my fitness and life goals. We saw eye to eye right away, and its been a great journey almost a year later. This place...
Eric N.
12/26/2007
I've known Mark and Alexis for a little while before they finally convinced me to come to their studio for a workout. My housemate and I tried out Mark's Muay Thai "Warrior Training" with core...
Daniel S.
10/10/2019
I was a bit nervous to start working with Mark because I was coming off of my third knee surgery and I was debating whether or not to continue with a physical therapist or start up with Mark (who...
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