-3, 2, 1.
-Fitness is a balance.
Take it easy and you won't get enough exercise.
Push yourself too hard and you could get hurt, but a new workout Fitwall aims to keep people safe and in shape.
-What you see in our studios is a 40-minute fitness experience that brings strength, cardio, and flexibility to bear with very, very low risk of injury.
-In a Fitwall class you climb, kick, stretch, and squat on what looks like a
heavy-duty server rack.
As they work out, members wear a monitor dubbed the peanut strapped around their chest.
So you went from blue to green.
We take your heart rate up to 120.
-The peanut tracks vitals in real time and transmits the data to an iPad next to their Fitwall station via Bluetooth.
-So a big focus here is to allow you to from the comfort of your mobile phone or your computer at home be able to see how you've done and plan to do better in the future.
-The company has earned some high-profile
Fitwall is being used by US military and Special Forces, Olympic training centers, and the Pittsburg Steelers.
-And then go back to that top position.
Our station is--
-Classes begin with decompressive moves such as squats then go on to what Fitwall refers to as fundamentals.
Sessions end with sprints.
This is where we're starting to go fast.
-Short but intense burst of activity.
-Climb it up, pump over here.
-I could see your heart rate starting to climb.
-And does it produce results?
That's like the longest 15 seconds of my
Let's just say it left me sore for 3 days.
In San Francisco, I'm Sumi Das, CNET.com for CBS News.