Examples of circumscribed groups whose members may be units of analysis at the individual level include: students, residents, workers, voters, parents, faculty, etc. Each of these units of analysis implies some circumscribed population; i.e., a sub-population. In descriptive studies, the researcher makes observations describing the characteristics of a large number of individual people, such as their sexes, ages, regions or birth, attitudes, etc.
Exertional Sickling. Exertional sickling is a medical emergency occurring in athletes carrying the sickle cell trait. When the red blood cells(RBC) change shape or âsickleâ this causes a build up of RBCs in small blood vessels, leading to decreased blood flow.The drop in blood flow leads to a breakdown of muscle tissue and cell death, known as fulminant rhabdomyolysis.xertional sickling is most common when exercise is high intensity and has short or small amounts of recovery time between drills. Sports settings common for exertional sickling collapse are: 1  Football conditioning. 2  Basketball training. 3  Cross-country racing.
If you believe your child is experiencing exertional sickling during or after exercise, here's what to do: 1  Remove the child from the activity. 2  Call 911 and explain that urgen care needed to prevent explosive rhabdomyolysis. 3  Make the child comfortable, including cooling for comfort. 4  Give her something to drink.xertional sickling signs and symptoms. Children who exercise intensely, particularly in the heat, can experience a condition called exertional sickling. This can commonly occur in organized sports as a result of: 1  Low blood oxygen levels; 2  Increased muscle heat; and/or. 3  Dehydration.