Ski Knees Series
Commit to your best season yet by starting out with rock-solid fitness!
Functional strength and conditioning training to prevent injury and improve your skiing.
What to Expect
A 10-week program with 20 classes designed to build functional strength, improve conditioning, and prevent injury so you can ski stronger, longer, and safer this season.
Dynamic Exercises: Specific, targeted exercises to help you ski from first chair to last chair.
Injury Prevention: Programming co-designed with Dr. Beckham to keep you safe and strong on the hill.
Expert Instruction: Led by Kelley Mast, Certified Personal Trainer, Ski Instructor, and Former Ski Racer.
Snowboarder-Friendly: Snowboarders are indeed allowed, but may have to do extra burpees!
Professionally Designed.
Built for Ski Season.
Ski Knees is more than a general fitness class.
The series is co-designed by Dr. Kaeli Beckham, Doctor of Physical Therapy, and Kelley Mast, NASM-Certified Personal Trainer, combining expertise in physical therapy, strength training, movement, and injury prevention.
Each workout is intentionally designed to build the strength, stability, control, and endurance your body needs for long days on the mountain.
Train with purpose now, so you can ski stronger all season long.
Kaeli Beckham, DPT, PTDoctor of Physical TherapyKelley MastNASM-Certified Personal Trainer
Meet Your Instructor
Kelley Mast
Ski Racer
Ski Instructor
Certified Personal Trainer
Kelley is a NASM-certified personal trainer and owner of MastMountainFitness, LLC. She has been training clients and leading group fitness classes in the Snoqualmie Valley for over 15 years. In addition to personal training, Kelley is certified in spin, TRX, barre, and HIIT Chaos.
Her programs focus on stabilization, balance, strength, endurance, and power to help clients feel confident, strong, and capable.
A lifelong athlete, Kelley grew up in the Colorado mountains where she was a ski racer from elementary school through high school. As an adult, she has continued her skiing career and also started teaching skiing at The Summit at Snoqualmie and earned her PSIA Level 1 Certification
Specific, targeted, dynamic exercises to help you ski from first chair to last chair!
What People Are Saying
- Scott Rinckenberger
“I haven’t gone into a season so strong and confident in years — it really is a game changer.”
- Scott Rinckenberger
“Once skis hit the slopes, we all remarked at how fresh our legs felt even on day one.”
Choose your group
Early Morning
Tuesdays & Thursdays
(6:00–7:00 AM)
Start: Tuesday, October 13th
End: Tuesday, December 22nd
Every Tuesday & Thursday, 6-7 AM
*Skipping November 26th (Thanksgiving)
Location: Mount Si Wellness Collective
Investment: $440
Mid-Morning
Mondays & Wednesdays
(9:30–10:30 AM)
Start: Monday, October 12th
End: Monday, December 21st
Every Monday & Wednesday, 9:30-10:30 AM
*Skipping November 25th (Thanksgiving)
Location: Mount Si Wellness Collective
Investment: $440
Evening
Tuesdays & Thursdays
(6:00–7:00 PM)
Start: Tuesday, October 13th
End: Tuesday, December 22nd
Every Tuesday & Thursday, 6-7 PM
*Skipping November 26th (Thanksgiving)
Location: Mount Si Wellness Collective
Investment: $440
Don’t see a time that works for you?
Consider scheduling a 1:1 ski assessment with one of our Doctors of Physical Therapy. We can assess your individual needs and build a personalized, ski-specific training plan you can work through on your own to get a head start on ski season.
