To the Editor: Joan Claybrook makes it clear in ''Crash Test Dummies'' (Op-Ed, Jan. 28) that there have been many mistakes made regarding safety testing of infant car seats.While avoiding mistakes in the future is important, there is an even...o the Editor: John Tierney suggests that the 1978 fuel-economy standards made vehicles lighter and thus less safe. But the fact is that after the standards took effect, 85 percent of fuel economy gains came from gas-saving technologies, not...
Determining Calorie Expenditure. According to Harvard, a 125-pound person can burn an average of 210 calories in 30 minutes of stationary cycling, while a 155-pound person can burn 260 calories and a 185-pound person can burn 311 calories.
Is this a trick question? Spinning is cycling on a stationary bicycle or a bicycle mounted on a stand so as not to go anywhere. That means you can spin all you want, as long as you want, and you wonât go anywhereâ¦ Zero miles. Someone of average fitness could maintain 15mph for an hour probably. Therefore, around 15 miles. For the average person, holding 20+mph for an hour is unrealistic. I'm not saying it can't be done, but most people who don't bike much don't have that type of stamina.