This Site Might Help You. RE: Why do breathing and heart rate remain elevated after exercise stops? One measrue of physical fitness is a &quot;step test,&quot; in which a subject steps us on a low platform and then back down (one second for each), and continues this process for 3 minutes.aybe because your muscles are still requiring oxygen since they are still swollen from being used. Oxygen is transported to your muscles via your blood from your lungs and that could be the reason why your heart rate stays elevated.
Old headlights gave off 700 lumens of light; new headlights give off 1,000 to 1,200 lumens; high-intensity discharge lights (the term Xenon is really a misnomer, Bibbo said) give off 3,000 lumens.ld headlights gave off 700 lumens of light; new headlights give off 1,000 to 1,200 lumens; high-intensity discharge lights (the term Xenon is really a misnomer, Bibbo said) give off 3,000 lumens.
When it comes to the lumen output for LED lights, mountain bikers are like rabbits caught in the headlights â hypnotised by manufacturersâ claims about brighter light for less money.Halogen globes, lead acid batteries and watts are terms that are all but extinct in todayâs bike light market.Out on the singletrack we have entered the world of LED lights and lithium ion batteries, and when we want to compare light output now, we talk about lumens.alogen globes, lead acid batteries and watts are terms that are all but extinct in todayâs bike light market. Out on the singletrack we have entered the world of LED lights and lithium ion batteries, and when we want to compare light output now, we talk about lumens.