The Hounsfield unit (HU) scale is a linear transformation of the original linear attenuation coefficient measurement into one in which the radiodensity of distilled water at standard pressure and temperature (STP) is defined as zero Hounsfield units (HU), while the radiodensity of air at STP is defined as -1000 HU.he Hounsfield scale /ËhaÊnzËfiËld/ or CT numbers, named after Sir Godfrey Newbold Hounsfield, is a quantitative scale for describing radiodensity.
Redefine Cardio â Make traditional strength training your bread and butter and end with cardio. Close out a 40-minute workout session with 5 to 10 minutes of post-workout anaerobic conditioning. For example, consider 30-second sprints on the bike followed by a minute of rest. Repeat three times and youâre done.
On the other hand, too little time spent weight training will result in a lack of progress. If you are mainly doing a cardiovascular workout, the general guidelines are slightly different. Many medical professionals recommend doing cardio an average of three to four times per week for 40-60 minutes. Another perspective on this is that you should do 150 minutes of moderate intensity cardio exercise spread out throughout the week or 75 minutes of high intensity cardio exercise spread throughout the week.