The intervention involveds three components: (1) training on an exercise bicycle, (2) a balance control training on a bicycle simulator, and (3) cycling on the public roads with a safe start-and-stop technique that will be practiced on the bicycle simulator. In the bicycle simulator training, the difficulty of the balance control was increased gradually, slowly approaching the difficulty of bicycle balance control on the public roads.

The participants in the experimental group are matched to the participants in the control group. The control group participants are selected based on their distance from the location of the intervention; control group participants live farther away from the location of the intervention as compared to the experimental group.

The intervention involves three components: (1) training on an exercise bicycle, (2) a balance control training on a bicycle simulator, and (3) cycling on the public roads with a safe start-and-stop technique that was practiced on the bicycle simulator. In the bicycle simulator training, the difficulty of the balance control will be increased gradually, slowly approaching the difficulty of bicycle balance control on the public roads.

This outcome variable will be obtained from a questionnaire that evaluates participants' bicycle BC skills and confidence while riding on the public roads. For each of three environments (without traffic, little traffic, busy traffic), participants must indicate what applies to them: (1) "I did not ride my bicycle here", (2) "I rode my bicycle here, but I try to avoid it", and (3) "I rode my bicycle here without problems". The answers to every question/environment were converted into a score by assigning 0, 1, and 2 points to the respective options. Summing these scores over the three questions/environments results in a number between 0 and 6, which is the outcome variable.

The 1minFTP is the highest power a participant can maintain for one minute while cycling at 60 revolutions per minute (RPM). The 1minFTP was assessed by having participants monitor their breath after a one-minute effort at some power level: if the participant can say only a few words at a time (a proxy for reaching the ventilatory threshold), the 1minFTP is reached.