Interpreting assessment results

normative data

Data reported for a sample population

Homogenous data sets limit interpretation

Not available for all tests, populations

Comparison should only be made with the same test and testing equipment

More data is needed to represent different variables

normalized data

Express strength as a ratio or percentage

Convert 10 rep max to one rep max (10RM/.75)

One rep max/bodyweight

Limb symmetry index

Agonist: antagonist force ratio

pre-post

Evaluate within person change changes to monitor progress/assess goals

Follow up testing depend depends on training, intensity and volume

Represent change with percentage improvement

[(post-pre)/pre]x100%

Where you find normative data

Textbook

Professional organizations /Reputable website websites

Peer reviewed research article articles

You establish your own overtime by performing assessments

normative data

Reported results for the test within a defined sample population ( mean test score, BMI for population/demographic, lab activity results)

things to consider when comparing normative data

Are you using the same assessment? Read the methods to compare.

How does your individual compared to the sample population?

Not all tests and populations have established normal data

normalized data

result that is reported as percentage or

EX. Strength normalized the body mass, agonist and antagonist ratios, Limb symmetry

why do we normalize data?

Account for other variables that may influence the result

Make it easier to compare the assessment result to normative data

divide the data point by the normalizing variable

How do you normalize data?

represent force relative to body mass

One of the ways to normalize data

Convert pounds to kilograms

Divide force/KG

agonist antagonist relationship

Hamstring/quad

Reported as a percentage of quadriceps strength

One of the ways to normalize data

other

Can compare this relationship to ________ Leg

populations/individuals

Can compare this relationship to other ________________________

limb symmetry index

compared bilaterally to determine symmetry between limbs

Identify the target verse comparison, limb, and keep these designations overtime

(Target/Comparison)x100

The percentage that adds to the 100% is the asymmetry indication