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The sitting-rising test (SRT) is a clinical test which provides a significant and efficient prediction of mortality risk in the elderly. It was initially developed by Brazilian researchers in exercise physiology and sports medicine in the 1990s. The test involves sitting on the floor, then returning to a standing position from the floor.
The standard definition of a reference range for a particular measurement is defined as the interval between which 95% of values of a reference population fall into, in such a way that 2.5% of the time a value will be less than the lower limit of this interval, and 2.5% of the time it will be larger than the upper limit of this interval, whatever the distribution of these values.
Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the ...
The Timed Up and Go test (TUG) is a simple test used to assess a person's mobility and requires both static and dynamic balance. [ 1 ] It uses the time that a person takes to rise from a chair, walk three meters, turn around 180 degrees, walk back to the chair, and sit down while turning 180 degrees.
An estimate of the standard deviation for N > 100 data taken to be approximately normal follows from the heuristic that 95% of the area under the normal curve lies roughly two standard deviations to either side of the mean, so that, with 95% probability the total range of values R represents four standard deviations so that s ≈ R/4.
In descriptive statistics, the range of a set of data is size of the narrowest interval which contains all the data. It is calculated as the difference between the largest and smallest values (also known as the sample maximum and minimum). [1] It is expressed in the same units as the data. The range provides an indication of statistical ...
In probability and statistics, the 97.5th percentile point of the standard normal distribution is a number commonly used for statistical calculations. The approximate value of this number is 1.96 , meaning that 95% of the area under a normal curve lies within approximately 1.96 standard deviations of the mean .
Unlike third edition of Dungeons & Dragons, which had the core rulebooks released in monthly installments, the 4th editions of the Player's Handbook, Monster Manual, and Dungeon Master's Guide were all released in June 2008. In addition, beginning in September 2010 the stand-alone Essentials product line was released, aiming at novice players.