When worn on your wrist, Tenex ESA absorbs 70% of harmful vibrations according to testing conducted at the Massachusetts Institute of Technology and at the University of British Columbia. Use Tenex® ESA to protect yourself from tennis elbow, golfers elbow, carpal tunnel, muscle stress and fatigue!

The effectiveness of Tenex® ESA has been verified in five separate studies conducted by independent researchers. Engineering studies conducted at the Massachusetts Institute of Technology, and at HAKO Research Laboratories, concluded that Tenex® ESA reduces migratory vibrations by 50-70 percent. Clinical testing found a measurable improvement in players’ strength and power attributable to a reduction in inhibition caused by pain. Trial tests of Tenex® ESA on subjects suffering from tennis elbow revealed a dramatic improvement in their condition, and in some cases, complete elimination of the symptoms.
"Our results say that Tenex® Elbow Shock Absorber dampens vibrations better than anything we've ever seen."

Dr. J. Karl Hendrick,
President Sport Dynamic Laboratory,
Professor of Mechanical Engineering, Massachusetts Institute of Technology Tenex® Elbow Shock Absorber has been clinically proven to eliminate the damaging shock waves and vibrations that cause fatigue, muscle stress and joint injuries. Studies and trial tests placed Tenex® ESA ahead of its competitors with 50-70% of the vibrations eliminated before they reach the elbow"

Dr. G. P. Krebs Ph.D. Director of Research for Hako Research & Engineering,
Bio-mechanical Department Director of Research for Alternative Energy Ltd.
Head Department & Professor of Chemistry and Mathematics, Laval University, Quebec, Canada
Technical Consultant for:
- Research Department of Nomadic Silviculture Ltd.
- Wilson and Morgesten "...The results obtained in all tests are consistent with previous studies on the effectiveness of Tenex® ElbowShock Absorber. In the test study, we witnessed that subjects showed significant reduction in the intensity of pain and an increase in flexibility and freedom of movement. We conclude that Tenex® Shock Absorber is effective in the reduction of symptoms of Carpal Tunnel Syndrome and tennis-elbow.

BC Research - University of British Columbia "This is a real scientific breakthrough "

John Patrick Mann, MD, B.Sc.,
Professor - School Of Kinesiology UIC Faculty of Applied Sciences And Mechanical Engineering (FASME) "In all muscle-associated testing, wearing Tenex® Elbow Shock Absorber resulted in a significant increase in muscle strength and aided subjects in achieving their goal of pain-free racquet sports."

Bill Reichelt, Head Trainer, B.C. Lions Football Club and Athletic Therapist "... Pain, in most cases, was eliminated, a sure sign that healing took place. Tenex® Elbow Shock Absorber is a promising new concept in tennis elbow orthotics."

Dr. J. Rideout, B.Sc. University of British Columbia,
M.D. CM - McGill University,
Certification, Canadian College of Family Practice,
Organizing physician for the 1987 Davies Federation tennis Cup "Consistent with the laboratory studies, we found a consistent improvement amongst the players with eventual complete pain elimination. We were truly impressed with the results"

Gordon Mackenzie Study Coordinator

Without Tenex®   With Tenex®

Vibration dampening results were procured from oscilloscope amplitude measurements connected to a piezoelectric sensor and to a computer to average data.