Diabetes Starts Earlier Than You Think. Movement Helps You Push Back.
Most people think of diabetes as something that begins the day a lab result crosses a diagnostic line.
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Weightlifting
San Francisco’s Biggest Weight Floor Opens in October
What to expect this October at FITNESS SF Polk
On October 1, we’re opening the doors to a new San Francisco strength training gym built around the city's largest weight floor and an unmatched range of strength equipment. Enjoy a spacious, purpose-built training space with expert staff ready to support you.
Strong for Life: Why Resistance Training Matters More as We Age
We often think of aging as something that simply happens to our bodies. We lose some strength, slow down, and perhaps become a little less capable than we used to be.
Deadlifts and Low Back Pain: Who Benefits Most?
The deadlift has become one of the most respected exercises in strength training—and for good reason. When coached well, it develops strength through the hips, legs, trunk, and posterior chain in a way that closely resembles real life. Picking up groceries, moving furniture, carrying children, loading luggage, and even maintaining posture during daily life all rely on the same fundamental movement patterns trained during a deadlift.
Glute Zone Preview at FITNESS SF Polk
A dedicated Glute Zone gives you a focused space with purpose-built machines to train your glutes safely, effectively, and consistently. Instead of improvising with benches and barbells, you get equipment designed around hip extension mechanics, helping you build strength, power, and shape with fewer setup hassles.
Les Mills Global Trainer Levi Farrell Visits FITNESS SF Transbay
FITNESS SF is excited to welcome Les Mills Global Trainer Levi Farrell to San Francisco for a special morning of training, education, and community at FITNESS SF Transbay.
On Wednesday, June 24, members and team members will have the opportunity to experience two exclusive masterclasses led by one of the world's leading fitness educators and presenters. Whether you're already a regular in our Group Fitness Classes or looking to challenge yourself with a new training experience, this event is not to be missed.
Inside FITNESS SF's 1st Annual Squat Competition
Our 1st Annual Squat Competition at FITNESS SF Transbay showed how a simple movement can unite a city. By turning a Saturday into a shared challenge, the event created an electric atmosphere that strengthened member loyalty, attracted new faces, and showcased why community-first gyms stand out.
How Exercise Prevents Frailty and Fragility Fractures
Aging changes the body — but decline is not inevitable.
FITNESS SF Polk Weightlist: Claim Your Founding Spot
The FITNESS SF Polk WEIGHTList lets San Franciscans lock in early access, founding-member pricing, and first pick of limited spots at a new, community-built neighborhood gym. Join now to secure exclusive pre-sale perks before doors open in Fall 2026 and prices rise for good.
Cardio vs Weights vs Both: What Actually Works Best for Fat Loss?
If you hang around our gyms long enough, you’ll hear some version of this debate in every locker room:
“If I want to lose fat, should I just do cardio?”
“But I heard lifting is better because it boosts your metabolism.”
“What if I do both—will they cancel each other out?”
A 2025 systematic review and meta-analysis (36 randomized trials, 1,564 adults) just took a hard look at this exact question: comparing aerobic training (cardio), resistance training (strength), and concurrent training (both in the same week) and how each affects body fat, body weight, and muscle mass (PubMed). Here’s what it means for you at FITNESS SF.