Peloton for Seniors. If the right precautions are taken, Peloton bikes can be a good source of workout for seniors. They can be a great way to maintain one’s fitness in the older years. Research shows that cycling 4 miles (6.5 km) per day can decrease a senior person’s risk of contracting coronary heart disease by 50%. TSS = (sec x NP x IF)/(FTP x 3600) x 100 "sec" is duration of the workout in seconds "NP" is Normalized Power "IF" is Intensity Factor (as a percentage of your FTP) ... It'd be nice if it was more accurate, but are folks riding the Peloton to accumulate wins, or to improve personal fitness? Does the output reading need to be 100%.