Blood Flow Analysis

April 4, 2009 New Article by National Institute for Occupational Safety and Health. Here’s an interesting read on the health benefits of no-nose saddles vs. traditional saddles.

Adamo Racing Saddle Pressure Test

On September 5, 2006 we traveled to the University of Hamburg to have the new Adamo Road saddle and the Adamo Racing saddle tested by noted German urologist Dr. Frank Sommer. At the conclusion of the testing Dr. Sommer was pleased with our results and congratulated Steve on his design and achievements. Dr. Sommer stated, "A saddle where there is hardly any blood loss. Which is excellent to preserve sexuality and for preventing erectile dysfunction."

Who says ISM™ is the most comfortable bike seat in the world?

Every year, several hundred million people worldwide are involved in the activity of bicycle riding. Research studies have linked perineal pressure caused by straddling traditional bicycle seats to numbness, urinary tract and yeast infections, prostate inflammation and impotence. For male riders, in addition to the discomfort and numbness associated with a traditional saddle, there is an increased susceptibility to restricted blood flow, which can lead to arterial occlusion and permanent erectile dysfunction. For women, the restricted blood flow and hardening of the genital arteries can lead to an inability to reach orgasm. It has been found that as little as 11% of a person’s body weight can compress the genital artery!

In November 2004, Steve Toll set out to eradicate the problems caused by traditional saddles, and create the most comfortable bike seat in the world. He took the ISM™ saddle to Germany to be tested by Dr. Frank Sommer, a noted expert in the area of arterial occlusion resulting from bicycle saddles at the University of Cologne.

While normal testing involves a 15-minute ride on a saddle, the test using the ISM™ was discontinued after 12 minutes. Why? Dr. Sommer commented, “It doesn’t get any better than this.” In fact, blood flow in the perineum area remained at 100% throughout the test with the ISM™, a mark rarely seen in bicycle saddle testing.

In addition, Dr. Sommer’s prior research has indicated that some saddles restrict blood flow in the perineum area by as much as 95% within the first minute of a ride. Other studies indicate that such restriction over a long period can result in permanent erectile damage, as well as similar issues in female riders.

The ISM™ is a first-of-its-kind seat, designed for comfort and rider longevity. If a family is in your future, or you’re simply tired of the pain and discomfort associated with a traditional saddle, rest your bones on the ISM™. Research has proven that it’s simply a medically superior seat.  


NIOSH (National Institute for Occupational Safety & Health) Update

National Geographic Adventure, April 2003 – Riding Rough: New Evidence Continues to Link Biking to Impotence by Jim Thornton.

Bicycling Magazine, August 1997 – The Unseen Danger by Joe Kita

Other Research Studies: Available Through the National Library of Medicine

Cycling and Penile Oxygen Pressure: the Type of Saddle Matters
Dr. Frank Sommer, Department of Urology, University Medical Center of Cologne September 2001

Does Bicycling Contribute to Erectile Dysfunction? Examining the Evidence
William O. Brandt, MD, The Physician and Sports Medicine April 2009

Genital Sensation and Sexual Function in Women Bicyclists and Runners: Are Your Feet Safer Than Your Seat?
Dr. Marsha K. Guess, et al, Journal of Sexual Medicine 2006

The Vicious Cycling: Bicycling Related Urogenital Disorders
Ilan Leibovitch, European Urology 16, November 2004

Bicycle Riding and Erectile Dysfunction: A Review
Dr. Frank Sommer & Dr. Irwin Goldstein

Type of Saddle and Sitting Position Influence Penile Oxygen Pressure while Cycling Dr. Frank Sommer, Cologne University, March 2003.

“Impotence and Nerve Entrapment in Long Distance Amateur Cyclist”
Andersen K.V., Bovim G.
Laboratory of Clinical Neurophysiology, Trondheim University Hospital, Norway.

“Does Bicycling Contribute to the Risk of Erectile Dysfunction?”
Goldstein I., Marceau L., Kleinman K., McKinlay J.

“Pressure Distribution on Bicycle Saddles” (a comparison between normal “flat” saddles with gel and saddles with a “hole” in the perineal area)
Renato Rodano, Roberto Squadrone, Massimiliano Sacchi, Alberto Marzegan
Centro di Bioingegneria, Milan, Italy – November 2002.

“Ergonomics of 2 Bicycle Saddles” (Pressure at the Pudendal Area in Women of a Normal Saddle with Gel and of a Saddle with a Hole)
Dr. Ingo Froboese – Deutsche Sporthochschule, Cologne, Germany
Dr. Luc Baeyens – Centre Hospitalier Universitaire Brugmann, Brussels, Belgium.