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Scientists Discover Way to Send Information into Black Holes Without Using Energy

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This Smart Fabric Can Read Your Muscles Like a Mind Reader

Imagine wearing a simple piece of clothing that can understand how your muscles move, track your health, and even help improve your athletic performance. This is no longer science fiction. A new high-tech smart fabric, developed by researchers and published in Science Advances, is bringing us closer to that reality.

This innovative textile, created using noise-resistant and conductive threads, could transform the future of healthcare, sports, and rehabilitation—all while feeling as comfortable as everyday clothing.

A Passion for Sports Meets Science

The breakthrough comes from Sunghoon Lee, a materials engineer at RIKEN Center for Emergent Matter Science. Lee has always been passionate about sports, especially baseball, and has focused his research on combining athletics with advanced technology.

Previously, his team developed a fingertip sensor to analyze pitching motion in baseball players. Now, they have taken a major step forward by creating a full-body smart textile that can monitor muscle activity in real time.

What Makes This Fabric So Special?

At the heart of this technology is a method called electromyography (EMG). EMG measures the tiny electrical signals produced when muscles contract. These signals reveal how muscles behave during movement—whether you're running, lifting weights, or recovering from an injury.

However, there has always been a problem.

Muscle signals are extremely weak—just a few millivolts—and can easily be disrupted by electrical noise from the environment. This noise can come from movement, physical contact, or even nearby electronic devices. Because of this, traditional EMG systems often require bulky equipment placed close to the body, which limits comfort and movement.

This is where the new smart fabric stands out.

Solving the Noise Problem

One of the biggest achievements of this research is solving the long-standing issue of electrical noise in wearable EMG systems.

The team designed a special triple-layered yarn structure:

  • Inner core: A conductive fiber that carries the muscle signal

  • Middle layer: Polyurethane insulation to protect the signal

  • Outer layer: A flexible shield made of silver flakes embedded in a rubber-like material

This outer shielding layer is the key innovation. It blocks and redirects unwanted electromagnetic interference, keeping the muscle signals clean and accurate—even during movement.

Even when the fabric is stretched up to 120% of its original length, the shielding remains effective. This makes it ideal for active use, such as sports or physical therapy.

Comfortable Like Everyday Clothing

Unlike traditional EMG systems, this smart textile is designed to feel just like normal sportswear.

The garment is thin, flexible, and lightweight—similar to an inner athletic layer. It allows full freedom of movement without bulky equipment attached to the body. Small wireless modules are worn around the waist to process and transmit the data, ensuring that limbs remain unrestricted.

This combination of comfort and functionality makes the technology practical for real-world use.

Real-World Testing and Performance

The researchers tested the fabric in various scenarios to ensure it works effectively in real-life conditions.

Key findings from testing:

  • The fabric maintained clean signals even when pressed or stretched

  • It performed well during shoulder movement tests, including assisted rehabilitation exercises

  • It successfully tracked lower-body muscles during activities like running, cycling, and jumping

  • Eight electrodes were used to monitor four muscle groups simultaneously

One particularly important result came from rehabilitation testing. When a therapist assisted a patient’s movement, physical contact usually introduced noise into EMG signals. However, the new fabric’s shielding prevented this interference, allowing accurate readings.

Applications: From Athletes to Patients

This smart fabric has the potential to impact multiple fields:

🏥 Healthcare and Rehabilitation

Doctors and therapists can track muscle recovery more accurately, helping patients recover faster and more safely.

🏃 Sports Performance

Athletes can analyze their movements in detail, identify inefficiencies, and improve performance.

🔬 Scientific Research

Researchers can better understand how muscles work during complex movements, advancing biomechanics studies.

Challenges Still to Overcome

While the technology is promising, it is not without limitations.

1. Washability

Currently, the fabric can be damaged if washed. Improving durability and making it washable is a key priority for future development.

2. Personal Fit

Every person’s body is different, and muscle positions vary from one individual to another. A one-size-fits-all garment cannot provide perfect accuracy.

The Future: Personalized Smart Clothing

To solve the fit issue, the researchers are exploring personalized smart garments.

Their vision includes:

  • Using 3D body scanning to map an individual’s anatomy

  • Designing custom electrode placements based on muscle positions

  • Digitally printing wiring paths tailored to each person

This approach would ensure precise measurements and maximum comfort—similar to custom-made athletic gear, but with built-in electronics.

Sustainability and Next Innovations

The team is also working on making the technology more environmentally friendly. Future versions may include:

  • Biodegradable elastic materials

  • Carbon-based conductive fibers

  • Improved sweat management for long-term wear

These advancements could make smart textiles not only powerful but also sustainable.

Why Textiles Are the Future of Wearable Tech

According to Lee, clothing is the ideal platform for wearable electronics.

Why?

  • It naturally covers large areas of the body

  • It is already part of our daily life

  • It offers comfort, flexibility, and seamless integration

By embedding technology into textiles, we can monitor the entire body without needing separate devices.

A Major Step Forward

This smart fabric represents a significant breakthrough in wearable technology. By solving the noise problem and combining comfort with precision, it opens the door to a new generation of intelligent clothing.

From helping athletes perform better to assisting patients in recovery, the possibilities are vast. While challenges like washability and personalization remain, the progress so far is promising.

As research continues, we may soon live in a world where our clothes don’t just cover us—they understand us.

Reference: Sunghoon Lee et al, A body-scale textile-based electromyogram monitoring system with coaxially shielded conductive yarns, Science Advances (2025). DOI: 10.1126/sciadv.adx4518

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