
JointSpanMD™ is a physician-designed framework that measures, protects, and rebuilds your joint capacity across midlife and beyond.
The Six-Level Framework reframes joints not as passive structures that “wear out,” but as active systems that determine how long you stay strong, mobile, and independent.
Longevity begins in your joints.
JointSpanMD™ looks at what traditional
medicine often misses:
- How muscle strength protects joints
- How underloading accelerates joint decline
- How hormones, inflammation, and
neuromuscular control affect pain and stiffness - Why “normal” imaging can still hide real
loss of joint capacity - How early intervention changes your
future trajectory
Find Your Function Level
and Extend Your JointSpan™

The JointSpanMD™ Quiz is a fast,
clinically grounded assessment that
identifies your current joint capacity
level and your risk trajectory.
You will learn:
- Where your joints are resilient
- Where capacity is already being lost
- What type of intervention matters now versus later
- How to reduce future wear without extreme programs or guesswork
You will receive clear next steps tailored to your level, not generic advice.
JointSpanMD™ is for people who want:
- To stay active without constantly managing pain
- Have joint pain without a clear injury
- To understand whether their joints are protected or quietly deteriorating
- Recover more slowly than you used to
- To intervene before surgery, not after failure
- Have been told imaging is “normal” but symptoms persist
- To make smarter decisions about training, recovery, and loading
- Want to age with strength, not restriction
- To preserve independence for decades, not just the next season
- Are thinking not only about yourself, but about how to support aging parents

Most people are told they are “fine.”
Their scans look normal. Their labs fall within range.
They are told this is just aging.
Yet they feel weaker, stiffer, and less confident in their body than they did even a few years ago. That disconnect is not imagined. It reflects declining joint capacity that goes unmeasured until breakdown occurs.
01
FRAGILE FUNCTION
Pain controls your day. Every movement is a negotiation, and your body rarely wins.
02
RESTRICTED FUNCTION
You can get through the basics — but just barely. Activity feels like a risk you can’t afford to take.
03
REACTIVE FUNCTION
Some days feel manageable. Others set you back. You’re functioning, but nothing feels dependable.
04
TRANSITIONAL FUNCTION
You’re moving in the right direction. Strength is returning, but you’re still learning your limits.
05
RESILIENT FUNCTION
Your body shows up for you. Pain is the exception, not the backdrop of your day.
06
PEAK
FUNCTION
Strong, stable, and built to last. You’re not just aging well — you’re setting the standard for it.

About Dr. Nancy Yen Shipley
Dr. Nancy Yen Shipley is a board-certified orthopaedic surgeon specializing in sports medicine, shoulder and knee minimally invasive techniques, and regenerative medicine. She founded Form & Function because patients deserve more than a diagnosis and a quick consult – they deserve to feel seen, heard, and cared for as whole people.
Take the JointSpanMD™ Quiz
- Know where you stand.
- Protect what still works.
- Intervene before decline becomes damage.
