MUSCLE
strength
Time
Fridays · 1:30 AM – 2:20 AM MST
50 min
Instructor
Sarah TeeterBuild power, endurance, and muscle tone with structured resistance training. This class is designed to help you shape lean muscle and improve body composition.
What to Expect
Exercises targeting major muscle groups using dumbbells, barbells, bands, or bodyweight resistance. Pacing is controlled, focusing on time under tension.
Member Feedback
“If you want structured lifting without having to plan it yourself, strength classes are perfect. The instructor keeps your form on point, and the group pace keeps you moving.”
Pro Tip
Wear supportive training shoes. Bring water. Start with light weights if you are new to the movements.
FOCO syncs this session directly to your personal calendar feed. Please note that calendar integration does not book or reserve your spot. You must still register, sign up, or hold a membership with the gym to attend in accordance with their booking policies.
Also available at 17 other locations
THE DROP: CURATED GEAR
Gear up for your next class. Hand-selected, studio-tested essentials for strength workouts.
Fit Simplify Barbell Pad
by Fit Simplify
The squat track is high-volume and high-intensity. Slip this high-density cushion over the barbell so you can lock in your reps comfort-first.
“A lifesaver for the squat track when we do high repetitions to the beat.”
• Melissa K.
BlenderBottle Classic Shaker Bottle
by BlenderBottle
Prep your pre-workout or mix your post-class protein. The classic wire whisk blends powders smoothly so you don't get clumps mid-workout.
“No clumps, no leaks, and easy to throw in my gym bag before leaving the house.”
• Marcus T.
BSN Syntha-6 Edge (Strawberry Milkshake)
by BSN
A premium blend of whey and casein proteins in a delicious strawberry milkshake flavor. The combination of fast and slow-digesting proteins lasts longer in your belly, feeding your muscles steadily long after you leave the floor.
“My go-to mix. The strawberry milkshake flavor is a welcome change from chocolate, and the slow-digesting whey and casein blend keeps me full and energized post-workout.”
• Nora M.
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MORE TO LOCK AT MOUNTAINSIDE FITNESS · PEORIA
KNOWLEDGE DROP: RELATED GUIDES
RECOVERY IS NOT A WEAKNESS
How to actually take a rest day without losing your momentum or breaking your focus.
FROM THE RACK TO THE ROOM
Transitioning from solo lifting to high-energy group fitness. You know how to lift, but this is a different kind of burn.
THE REPETITION EFFECT
Why high repetitions with light weights is the secret to building functional strength without burning out.