The aim of this study was to compare the physiological and psychological responses of cyclists riding on a hard tail bicycle and on a full suspension bicycle. Twenty males participated in two series of tests. A test rig held the front axle of the bicycle steady while the rear wheel rotated against a heavy roller with bumps (or no bumps) on its surface. In the first series of tests, eight partic...

This paper analyzes the recent trend in bicycle-transit integration in the U.S. It reviews data from the National Household Travel Surveys (NHTS) to show the characteristics of bicycle-transit integrated trips, where the integrators were from, and to which population groups the integrators belonged. Bicycle-transit integration was increasingly observed in commuters and younger travelers, and be...

The bicycle provides transportation for leisure, recreation, and travel between home and work, throughout the world, in big cities as well as in small villages, supporting human mobility for more than a century. In addition, this widespread vehicle probably is the least expensive means of wheeled transportation. The bicycle has a debatable origin. Some history books speculate about Leonardo da ...

OBJECTIVE The purpose of this field study was to compare the physiological responses from cycling on a tandem road bicycle to those from cycling on a single road bicycle. METHODS Nine pairs of experienced, recreational tandem cyclists rode a tandem or their single bicycle for 5 min at each velocity of 19.3, 22.5, 25.8, and 29.0 kph on a flat, paved surface. Heart rate (HR), rating of perceive...

A bicycle (n, k)-gon is an equilateral n-gon whose k-diagonals are equal. S. Tabachnikov proved that a regular n-gon is first-order flexible as a bicycle (n, k)-gon if and only if there is an integer 2 ≤ r ≤ n − 2 such that tan(π/n) tan(krπ/n) = tan(kπ/n) tan(rπ/n). In the present paper, we solve this trigonometric diophantine equation. In particular, we describe the family of first order flexi...

This paper uses census data to describe changes in bicycle commute mode shares between 1990 and 2000 in the Minneapolis-St. Paul, MN area, and specifically the impact of new bicycle facilities that were created during this decade. Previous efforts to understand the impact of facilities on bicycling rates have compared different locations; however, with this method it is not possible to determin...

OBJECTIVE This study examined bicycle helmet attitudes and practices of college undergraduates and developed the Bicycle Helmet Attitudes Scale, which was guided by the Health Belief Model (HBM; Rosenstock, 1974, in Becker MH, ed. The Health Belief Model and Personal Health Behavior. Thorofare, NJ: Charles B. Slack; 1974:328-335) to predict reported helmet use. PARTICIPANTS Students (N = 337)...

The results of a 10 year study of bicycle fatalities and an eight year study of serious non-fatalities are reported for urban Brisbane (population 1,000,000). There were 845 serious non-fatal bicycle accidents and 46 fatalities during the study. Boys were involved in 86% of accidents. Boys have an accident rate of 134.21 per 100,000 population at risk and a fatality rate of 5.06 per 100,000 at ...

STUDY OBJECTIVE To determine if a 3-min bout of moderately intensive supine bicycle exercise, whole-body periodic acceleration (pGz), and passive motorized cycling cause nitric oxide (NO) release into the circulation, as detected by dicrotic notch descent on the diastolic limb of a finger pulse wave. PARTICIPANTS Fourteen healthy adults underwent two levels of supine bicycle ergometry that ca...

Anaerobic energy release is of great importance for shortlasting exercise but has been difficult to quantify. In order to determine the amount of anaerobic energy release during shortlasting exercise we let 17 healthy young males exercise on the ergometer bike to exhaustion. The power during exercise was kept constant and selected to cause exhaustion in approximately 30 s, 1 min, or 2-3 min. Th...