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.
Projectors come in a wide range of light outputs, which are measured in ANSI lumens or just lumens for short. The brighter the projector, the higher the ANSI lumen rating, and (all else being equal) the more it costs.n today's market, projectors can be grouped by ANSI lumen output as follows: 1  Less than 2000 lumens. 2  Typically small and highly portable, these are the lowest light output projectors available today, and they are typically the least expensive.