Field testing involves collecting data In the environment that stimulates the one in which the sport is played
Advantages of field testing
High ecological validity: mimics or is carried out in performance environment
Low cost: cheaper than lab testing, more accessible, less experience required
Large sample sizes can be tested at one time
Disadvantages of field testing
Low internal validity: researcher has limited control of the variables
Interpretation of test results - lab testing
Lab tests provide direct measurement of specific components of fitness
Interpretation of test results - field testing
Field tests predict scores using data that has been extrapolated from lab test results
What does the multistage fitness test train?
Aerobic capacity
Multistage fitness test predicts performers VO2 max
Multistage fitness test - test protocol
Exact 20m distance marked out in a flat, stable surface
Subjects run 20m shuttles keeping in time to the 'beeps' on the pre-recorded CD
Beeps become progressively faster
Subjects continue to exhaustion until they can no longer keep up with the beeps
The level reached is compared to normative tables and is predicted VO2 max value
What does the Harvard step test train?
Aerobic capacity
The Harvard step test is a sub-maximal test to predict VO2 max that doesn't require subject working to exhaustion
Sub-maximal tests are useful when testing 'special populations' such as the elderly, obese/sedentary subjects or those with certain medical conditions
Harvard step test - test protocol
Step up 50cm high bench/step on a flat, stable surface
Using a metronome, the subject steps up and down on the platform at a rate of 30 steps per minute (every two seconds) for 5 minutes
The number of heart beats are counted between 1 and 1 a half minutes after completing the test. This is then used to calculate the 'fitness index'
The 'fitness index' score is compared to a normative table and converse to an estimate of VO2 max
Plank test (static strength) - test protocol
Subject lies face down with elbows and forearms underneath the chest
On the start of stopwatch the subject goes into plank position (on toes and forearms with a straight back)
Subject holds the position until exhaustion when they are unable to hold the back straight or hip is lowered
time is compared to normative data
1 rep max tests are used to measure dynamic strength which is isotonic production of force against resistance resulting in a change of position
1 repetition maximum (dynamic strength) - test protocol
select free weights or multi gym equipment for the specific muscle group to be tested
starting at an achievable weight, the subject attempt a full press/pull
weight is increased (with sufficient rest in between attempts) until failure
score is compared to normative data
1 minute press-up test (muscular endurance) - test protocol
on a floor mat the subject begins lying face down, hands under shoulders
on 'go', the start of the stopwatch the subject pushes up into a press-up with arms extended keeping the back and knees straight, and lowers the body until there is a 90 degree angle at the elbows
the number of full, completed press-ups are counted in 1 minute
scores are compared to normative data
Sit and reach test measure range of movement at a joint
Sit and reach test (flexibility) - test protocol
using a standardised sit and reach box, place it against the wall on a flat, stable surface
The subject sits with their feet (no shoes) flat against the side of the box with legs fully extended
The subject reaches as far as possible with hands on top of each other, keeping legs locked out. Measurements are taken from the tip of the fingers
Taking the best of 3 attempts, the score is compared to normative data
Sprint tests (speed) - test protocol
depending on the sport and element of speed measured (from standing or flying start) a set distance is accurately measured on a flat, stable surface
using a stopwatch or timing gates, subject is timed running the distance as fast as possible and scored are compared to normative data
Vertical jump test (power) - protocol
subject stands side on to wall and reaches up as far as possible. keeping feet flat on the ground, the point of the fingertips is marked or recorded
subject leaps vertically as high as possible using both arms and legs to assist. distance between the standing height and maximum is calculated.
maximum jump height is recorded after 3 attempts and scored compared to normative data
Illinois agility test (agility) - test protocol
the Illinois course is set up using exact measurements. a stopwatch, or timing gating are used
subjects begin lying down, arms outstretched touching the start line
on 'go', the subject gets up and runs the course as quickly as possible. the clock is stopped as they run over the finish line
times are compared to normative data
Stork stand (balance) - test protocol
the subject stands comfortably on both feet with their hands on their hips
they lift the right leg and place the sole of the right foot against side of left kneecap
the subject is timed holding the position as long as possible and scores compared to normative data