Knowledge That Connects Hands.
IHHC brings together clinical expertise, scientific evidence, and interdisciplinary collaboration to advance hand health.
Bridging Science and Clinical Practice
In therapy and rehabilitation, there is often a gap between scientific evidence and its application in everyday clinical practice. While research provides valuable insights and new perspectives, clinicians frequently lack clear guidance, practical tools, and actionable strategies to translate evidence into patient care.
This is where the International Hand Health Community (IHHC) makes a difference: We critically evaluate scientific evidence, present it in a clear and accessible way, and translate it into practical solutions for hand therapy, hand rehabilitation, and hand health.
Research
Critically evaluating scientific evidence, providing clinical context, and translating research into everyday practice.
Clarity
Transforming complex topics into clear, accessible, and practical knowledge for everyday clinical practice.
Clinical Relevance
Connecting knowledge with practical applications, assessments, and therapeutic tools for everyday clinical practice.
Community
Connecting professionals from therapy, medicine, research, education, and clinical practice.
Supporting the Translation of Evidence into Clinical Practice Complementary product links help you quickly identify the most suitable tools and therapeutic aids for practical clinical application.
More Than Three Decades of Experience in Hand Therapy
I am Rainer Zumhasch—an occupational therapist, author, educator, international speaker, and developer of therapeutic solutions. For more than three decades, I have dedicated my work to hand therapy, hand rehabilitation, and translating clinical knowledge into everyday practice.
After working in orthopedic hospitals and running my own private practice, I founded the Academy for Hand Rehabilitation in 2002, where I played a leading role in its development and served as its director until 2019.
Through the International Hand Health Community, my goal is to share this knowledge in a way that is evidence-based, accessible, and directly applicable to everyday clinical practice.
From Clinical Experience, Education, and Practice to a Global Community
The International Hand Health Community (IHHC) was not born from an idea at a desk—it grew out of decades of working with patients, collaborating with therapists, partnering with specialist publishers, delivering continuing professional education, and developing therapeutic products.
Orthopedic Hospitals
Early clinical experience in hand rehabilitation and orthopedic care.
Private Practice
Building specialized therapeutic services for patients in everyday clinical practice.
2002 – Academy for Hand Rehabilitation
Founded the Academy for Hand Rehabilitation, dedicated to advancing specialist education.
1,000+ Course Programs
Provided continuing professional education for occupational and physical therapists across German-speaking countries.
Professional Books & Publications
Contributed to specialist books, educational resources, and numerous professional publications.
Product Development
Developed innovative therapeutic products and practical solutions for rehabilitation.
2026 – IHHC
Established the International Hand Health Community (IHHC) as an interdisciplinary knowledge platform within the Webshop.
Knowledge, Collaboration, and Resources for Hand Therapy
The International Hand Health Community (IHHC) brings together resources that make specialist knowledge more accessible, support clinical practice, and promote collaboration in the field of hand health.
Professional Knowledge
Clearly presented, evidence-based content on hand therapy, hand rehabilitation, and hand health.
Clinical Tools
Resources and practical tools that help structure clinical decision-making and support everyday therapeutic practice.
Collaboration
A space for questions, professional discussion, and diverse interdisciplinary perspectives from clinical practice.
Education
Professional educational resources that deepen knowledge and support its application in everyday clinical practice.
Turning Clinical Challenges into Innovative Solutions
New ideas often emerge from clinical experience—especially where existing materials, assessments, or therapeutic approaches do not fully meet the demands of everyday practice.
Therapy Putty Light
A softer consistency designed for patients whose therapeutic needs require lower resistance than standard therapy putty provides.
Stone & Glass Beans
Washable, disinfectable, and durable alternatives to short-lived therapeutic materials used in everyday clinical practice.
Assessments
High-quality assessment tools and pegboards that combine clinical precision with durable, hygienic design.
New Developments
Further innovations, such as Mini Magnets, combine grasping, sensory stimulation, and resistance-based movement within a therapeutic setting.
One Company. Two Missions. One Shared Goal.
Since 2026, the International Hand Health Community (IHHC) has been a dedicated brand of Rainer Zumhasch's sole proprietorship and its online shop. While the IHHC focuses on advancing knowledge, education, and professional exchange in hand health, the online shop provides direct access to the specialized tools, products, and therapeutic solutions that support clinical practice. Together, they pursue a shared goal: translating knowledge into better patient care.
online shop
The online shoppremium-therapie.de) develops and supplies practical products and innovative solutions designed to support therapists in everyday clinical practice.
The IHHC Brand
The International Hand Health Community (IHHC) serves as the professional hub for knowledge, education, collaboration, and innovation in hand health. It connects evidence with everyday clinical practice and provides guidance on the effective use of therapeutic products and rehabilitation solutions.
