Longevity Lab
Move Better.
Feel Better.
Live Better.
Most active adults have never seen how their strength, power, balance, and mobility compare to people their age. Longevity Lab measures all four, then builds your plan to raise them, so you can keep doing what you love for decades.
For active adults from their mid-30s into their 80s.
What we measure
Tested on the same VALD force plate technology we use with all of our athletes, trusted by professional teams.
Stop guessing about how you are aging
Generic workouts miss your weak links
Without testing, it is hard to know what to train first. Most programs treat everyone the same.
Early changes go unnoticed
Power and muscle start to shift in your 30s and 40s, long before daily life feels any harder.
Feeling fine is not the full picture
How you feel matters. Numbers show what feel can miss, and give you clear targets to work toward.
You deserve to know exactly where you stand, and exactly what to do about it.
Build the four qualities that keep you active
Research links these four measures most closely to staying independent and active as you age. We test each one, then train it.
Strength
Lift, carry, and climb with ease. Grip and leg strength track closely with long-term health.
Power
React fast and catch yourself on a stumble. Power fades faster than strength with age, so we train it on purpose.
Balance
Move with confidence on stairs, trails, and uneven ground, on one leg and under load.
Mobility
Keep your hips, ankles, and spine moving freely, so you can do what you enjoy without working around stiffness.
Sample reports
See exactly where you stand
Every client gets a clear, color-coded profile. Each test is scored against a target for your age, both sides are checked for imbalances, and your priorities are named in plain language. Below are two real clients.
Longevity Lab Profile
Initial test. Build clients re-test at week 12. A real client, shared without identifying details.
- Grip Strength75%
- Mid-Thigh Pull85%
- Hamstring58%
- Countermovement Jump80%
- Hop RSI106%
- Single-Leg Jump67%
- Hip Internal Rotation26%
- Ankle Dorsiflexion86%
The read
Power and reactivity are a clear strength. The opportunity is maximal strength. A DSI of 0.81 means he already uses most of his strength when he jumps, so building strength is the most direct way to add athleticism.
Top priorities
- 1Hip internal rotation. 8 to 10 degrees against a 35 degree target, the biggest limit in the profile.
- 2Maximal strength. Mid-thigh pull near the 33rd percentile. Added strength converts straight to more jump.
- 3Left-side strength and power. Single-leg jump and hamstring strength both trail on the left.
Left vs right
The marker shows the 10% flag line.
Keep scrolling for a Summit client profile.
Longevity Lab Profile
Baseline test. Summit clients re-test every quarter against this profile. A real client, shared without identifying details.
- Grip Strength59%
- Knee Extension79%
- Hip Abduction56%
- Hip Adduction70%
- Hip Internal Rotation57%
- Hip External Rotation90%
- Ankle Dorsiflexion69%
The read
Leg strength is solid. Quad strength sits near the 52nd percentile and matches side to side. Grip and glute strength are the low points. Single-leg balance is even on both legs.
Top priorities
- 1Grip strength. Both hands sit below the 25th percentile for her age.
- 2Glute and inner thigh strength. Build toward the 290 N clinic goal.
- 3Hip internal rotation. 18 to 21 degrees against a 35 degree target.
Left vs right
The marker shows the 10% flag line.
Performance care for the rest of your life
You want to keep hiking, lifting, playing, and traveling for decades, not just get through the day. We get it. That is the same goal we train for ourselves.
“It reminded me again of how much I have appreciated and enjoyed my physical health.”
PROMPT client, after hiking the Grand Canyon
Trusted by athletes
We are the PT and Performance Partner for One Knoxville SC, and we work with professional, Division I, and high school athletes.
Measured, not guessed
We use the full VALD system of force plates and dynamometers, the same technology professional teams rely on.
Scored against your peers
Both sides of the body can lose strength with age. We compare you to people your age, not just left to right.
Specialist-led
Our team is led by a board-certified orthopedic specialist who is also a certified strength and conditioning specialist.
Getting started is simple
- 01
Book a consultation
Tell us what you want to keep doing. We will help you choose the right tier.
- 02
Get tested
We measure strength, power, balance, and mobility on VALD force plates and dynamometers, then send your report.
- 03
Train and re-test
Follow your plan in the Bridge Athletic app, then re-test to see exactly what changed.
The more you build, the longer it lasts.
Muscle mass and fast-twitch muscle fibers start to change in your 30s and 40s, often before you notice. Fast-twitch fibers drive speed and power, the qualities that help you catch yourself on a stumble. They are also the first to fade.
The good news is that strength, power, balance, and mobility respond to training at every age. The higher you build them, the more you carry into every decade that follows. We call that your reserve. Building it is the whole point of Longevity Lab.
Start with the life you want at 80
Picking up a grandchild. Hiking a steep trail. Getting up off the floor without using your hands. Traveling without worrying about stairs. We start with what you want to still be doing, work backward to the strength, power, balance, and mobility it takes, and then build more than you need.
Start early
The earlier you start, the better. Build strength, power, and athleticism now, and every decade after starts from a higher level.
Keep building
Your body still responds. In a well-known study, adults in their 90s nearly tripled their leg strength in eight weeks of training. Testing shows exactly what to focus on.
Your plan, on your phone
Build and Summit programs are delivered through the Bridge Athletic app. Every session is laid out for you, every exercise has a demo video, and each workout you log builds a record of your training.
Choose your path
Test once, train for 12 weeks, or keep building all year. Not sure which fits? We will help you choose at your consultation.
Foundation
Know where you stand.
- Testing matched to your current activity level and goals
- VALD force plate and hand-held dynamometry testing across strength, power, balance, and mobility
- Results report scored against people your age, identifying asymmetries and flagging your strongest areas and top priorities
Build
Turn your results into 12 weeks of progress.
- Everything in Foundation
- 12 weeks of programming in the Bridge Athletic app, with instructional video and progressions built around your goals
- Re-test at week 12 to track your progress
- Unlimited communication with your PT through the Bridge Athletic app messenger throughout the 12 weeks
Summit
Keep building, all year.
Optional after week 12: stay on Summit for $200 per quarter, or $250 per quarter billed monthly.
- Everything in Build, with your initial testing, first 12 weeks, and week-12 re-test covered by the start fee
- Quarterly VALD re-testing to keep your program current and show your progress over time
- Programming in the Bridge Athletic app that evolves through the year as your strength, power, balance, and mobility improve
- Unlimited communication with your PT through the Bridge Athletic app messenger
Keep doing what you love for decades
Book a consultation. Tell us what you want to keep doing, and we will build the plan to get you there.