Ajax Shuttle; Contact Times; Counter Movement Jump (Counter Move Jump) - netest Powertimer SW-300 User Manual

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8.3 Ajax Shuttle

Test description
The Ajax Shuttle measures the subject's ability to accelerate,
stop, change direction and then re-accelerate. This test is a
slalom course in which the total sprint time is measured.
Test parameters
The test has only one test parameter: The number of sprints to
be performed in one test action.
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Test sequence

 
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The subject sprints through the track from the first photocell to
  


 


 
 


the second and Powertimer SW-300 measures the total time.

While the subject is sprinting, the Performing Test notification
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The Powertimer measures the sprint times
 






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Figure 51 Ajax Shuttle
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8.4 Contact Times

Test description
The Contact Times test measures the contact time of the foot
on the jump mat.
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Test parameters
Contact Times test has one test parameter: The number of con-
tacts to be performed within a test action.
Test sequence
The subject runs over the jump mat and the system measures
the contact and flight times. After the subject exits the jump
mat, the Powertimer SW-300 will show a Too long jump notifi-
cation. This is normal behavior, since Powertimer assumes that
the subject is going to land on the jump mat. To create more
results, the subject just sprints over the jump mat again until
the predefined amount of results have been obtained.
The Contact Times test can also be started in training mode. In
training the best contact time from the actual testing is used as
the base result and the subject must try to obtain contacts that
are as close as possible to the calculated training result. Con-
tact Times training has no parameters.
Test results
The time of the foot on the jump mat and the time difference to
the next contact (flight time) is measured.
Results of Contact Times are not synchronized to the Powertim-
er Analyzer

8.5 Counter Movement Jump (Counter Move Jump)

Test description
The Counter Movement Jump (CMJ) is used to test and meas-
ure speed and explosive strength performance. In CMJ the
subject jumps as high as possible on the jump mat. CMJ dif-
fers from Static Jump in that the subject makes a counter move-
ment before the actual jump.
Test parameters
CMJ has one test parameter: The number of jumps to be per-
formed in a test action.