Measure. Treat. Measure Again: A Winback BACK4 Shoulder Case Observation
One Session. One Client. Here’s What We Measured.
I wanted to approach this session a little differently.
Instead of simply treating the shoulder and asking the client how it felt afterward, I wanted to measure first, treat, and then repeat the same measurements.
This wasn’t designed to prove that one Winback session caused a specific clinical outcome. It was a case observation designed to answer a much more practical question:
Can we objectively document what changes during a session and use those measurements to guide what we assess next?
That is where tools like Kinvent, ReadyOS, and the Winback BACK4 begin to create a very different clinical conversation.

Measure. Treat. Measure Again.
For me, this is where technology becomes more valuable in clinical and performance settings.
The process was simple:
Kinvent K-Pull testing → Winback BACK4 during active movement → repeat Kinvent testing
I also collected a ReadyOS scan before and after the session as an additional layer of information.
The objective wasn’t to collect data simply because we could.
The objective was to better understand the client.

The Baseline Told Us Where to Look
Before the Winback session, two external-rotation positions were tested with the Kinvent K-Pull.

In the first external-rotation test, average asymmetry was approximately 15.2%.
But when the shoulder was tested in external rotation at 90 degrees of abduction, the difference became much more pronounced: approximately 68.1% asymmetry, with average right-side output of 3.02 kg versus 9.50 kg on the left.
That immediately gave us something specific to follow.
Not just:
“The shoulder feels weak.”
But:
Where does the deficit appear, how large is it, and what happens when we reassess it?

Then We Integrated Winback With Movement

This wasn’t a passive session where the client simply lay on the table.
Winback BACK4 TECAR was incorporated while the client performed active shoulder work, including:
- Banded lateral raises
- Banded external rotation with the elbow at the side and bent to 90°
The active loading targeted the same general shoulder external-rotator/posterior-cuff region that we were measuring before and afterward.
That distinction matters to me.
The conversation isn’t simply about adding another modality to a treatment room.
It’s about how a practitioner can integrate technology into movement, rehabilitation, exercise, and reassessment.

Same Tests. Different Readings.
Immediately after the session, we repeated the same Kinvent measurements.
For the external-rotator test, average asymmetry changed from:
15.2% → 7.8%
At 90° of abduction, it changed from:
68.1% → 36.1%
The average right-side force at 90° also changed from 3.02 kg to 4.42 kg.
That is a meaningful observation — but it needs context.
The left-side values also decreased on re-testing. Because of that, I would not describe this as simply “the patient became stronger after Winback.”
What we can say is more useful:
The measured left-to-right relationship changed immediately after the session, and the largest deficit remained identifiable for future reassessment.
That gives us something to track instead of relying exclusively on perception.

ReadyOS Added Another Layer of Context
I also performed ReadyOS scans before and after the session.
The ReadyOS score changed from:
58 → 61
The reported HF share changed from approximately:
6.2% → 42.4%

Average heart rate remained 67 bpm.
I would be careful about overinterpreting this.
A single before-and-after ReadyOS scan cannot tell us why those values changed, and it shouldn’t be treated as a stand-alone diagnostic measure.
What it does provide is another data point that can potentially be compared over time with strength testing, movement, recovery, training load, patient perception, and subsequent sessions.

What Does This Actually Mean?
A measurable change occurred within this session.
That statement is intentionally different from saying:
“Winback caused a 47% improvement.”
This was one client. One session. No control condition. Multiple things occurred during the session, including active exercise.
So this isn’t clinical proof.
And that’s precisely why I think this example is useful.
Instead of trying to make the data say more than it can, we can use it to improve the next clinical decision.
We now know where the largest measurable deficit appeared.
We know what was recorded before the session.
We know what was recorded afterward.
And we have a variable that can be tested again during subsequent visits.

The Bigger Opportunity: Making Treatment More Measurable
This is where I believe the BACK4 becomes especially interesting for physical therapists, sports medicine practitioners, performance professionals, and practices looking to expand what they can offer.
The BACK4 isn’t limited to a practitioner performing TECAR while a patient remains passive.
Winback’s platform is designed to integrate treatment with movement, manual work, muscle recruitment and other rehabilitation strategies. The BACK4 also expands the platform with CARE+ and hands-free possibilities. Winback’s materials specifically describe active work and unattended/hands-free applications as part of the system’s versatility.
But technology alone isn’t the story.
The more interesting question is:
What happens when we combine treatment, movement and objective measurement inside the same clinical workflow?
That is the conversation I want to continue exploring.
Download the Full Case Observation Report
For practitioners who want to look beyond the carousel, I created a concise case-observation report containing the Kinvent pre/post measurements, ReadyOS data, intervention summary, clinical observations, and limitations.
FOR PRACTITIONERS
What Would This Look Like in Your Practice?
If you’re a physical therapist, chiropractor, athletic trainer, sports-performance professional, or practice owner, I’d be glad to walk you through more than just the technology.
We can look at:
- How BACK4 integrates into an existing treatment session,
- how TECAR can be combined with movement and manual therapy,
- how objective testing can be incorporated before and after treatment, and
- how the technology could fit into the clinical and business model of your practice?

Hector L. Torres, MS, MHS
U.S. Business Development Manager | Winback USA
USA Triathlon Level III Coach
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