SFY

Your strongest decade hasn't happened yet.

Get strong enough for the next 20 years, on a plan that bends around bad sleep, sore shoulders and short days.

Open the app. Today is already written.

You never see the programming. You see today's session, why it is today's session, and a start button.

Today
This week · Day 2
Phase
Lifts
Food
Youthspan
NEXT UP
Deadlift + Pull-Up · Day 2
Week 6 of 22 · about 50 min
Start
Spotter, your in-session coach.
Grip gave out before your back did last week. Straps on the last two sets today.
Today's session, about 45 minutes, with one note from your coach.
Lifts
Deadlift + Pull-Up
Week 6 · Day 2
DeadliftBest
185 × 5205 × 5225 × 5
Pull-Up
3 sets · as many as you own
Single-Arm Row
3 × 10 each side
Adjust. Hurts, short on time, no gear
Sore, short on time, no gear? Tap Adjust and today changes instead of disappearing.
Food
3 of 5 today · 9-day streak
Notice what you ate
One big salad
Beans or tofu
Plants every meal
Snap a meal
THIS WEEK ON YOUR PLATE
Beans showed up almost every day. That's the anchor working. Greens went missing after Tuesday.
Five checkboxes a day. Snap a meal if you want it coached.

Build muscle on plants. No macros, no weighing.

Derek Tresize holding bunches of carrots

No gram targets, no weighing dinner, no logging every bite. Five checks, and a photo if you want it coached.

A number on day one. A bigger one at Week 22.

Your Youthspan Snapshot gives you a number on day one. Five life tests, not gym tests, that decide how the next 20 years actually go.

Your Youthspan
74
out of 100
Solid base.
Your youthspan: 74 · Solid base.
Your Week 1 focus

Short sessions that train the five tests you just ran

Week 1 builds this in four sessions of 35 to 55 minutes. You retest all five tests at Week 22.

Every 22 weeks, you retest. That number moving is the whole point.

Stronger. Faster. Younger. Every week gets all three.

Stronger

Chase records on the big lifts, four weeks at a time. One heavy rep or a set of fifteen, the app remembers your numbers and tells you when you beat them.

Faster

Something quick and explosive comes first in every session, while you're fresh. Jumps, throws, short sprints. It is what keeps you light on your feet and catches you on a curb.

Younger

Balance, coordination and joint-friendly work built into every week, so you can keep training for years, not months.

The list you don't have to keep.

Strength. Muscle. Power. Conditioning. Balance. Mobility. All six facets of functional training appear in the program automatically. None of them is your job to figure out or schedule.

Tell it you slept badly, your shoulder is cranky, or you've got half an hour. Today gets rewritten, not cancelled. That is why people are still here at Week 22.

Derek Tresize, founder and coach

Twenty years of one-on-one coaching, all of it plant-based. This app is that coaching written down, with me in every demo video. You get what my clients pay hundreds a month for: the right session every day, adjusted to how you actually feel, with a coach at your fingertips.

Derek Tresize · 20 years coaching · B.S. Biology · ACE-CPT · MAT certified · WNBF Pro

Ryan, Root Force clientCoached by Derek · Root Force client
“Derek takes a holistic and individual approach to training, focusing on your individual goals and putting together really thoughtful fitness plans. I have seen outstanding results in my strength, mobility and overall cardiovascular fitness.”
Bill, client for 13 yearsCoached by Derek · Root Force client
“I have been a client of Rootforce for 13 years… Working with Derek has kept me motivated. He is encouraging and supportive.”

Client for 13 years

Nafis, uses the app each weekSFY member
“I love the app! Super easy to use and jump into. And super customizable.”

Week 1 is written. Start it.

Your first session is ready now. Seven days to decide if it's for you.

Start the 7-day free trial

Retest at Week 22. If your Youthspan score hasn't improved and you did the work, full refund.

$19/mo, $159/yr, or $99 once for the first round of 22 weeks. Founding prices for the first 25, locked for life.

See plans

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