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Group A
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Group B
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30-15IFT
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30-15IFT-LINE
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30-15IFT-CONT
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30-15IFT
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30-15IFT-28m
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VIFT (km·h-1)
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19.7 (1.2)
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21.7 (1.9) *
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16.1 (1.0) *†
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18.8 (2.1)
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18.7 (1.8)
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HRpeak (b·min-1)
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197 (10)
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197 (7)
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194 (8)
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198 (9)
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199 (9)
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HR/speed
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3.9 (.8)
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3.4 (.6)
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5.8 (1.1) *†
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4.2 (1.0)
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3.9 (.8) §
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|
[La]b (mmol·L-1)
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12.3 (2.5)
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11.3 (2.6)
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9.6 (3.2) *‡
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11.3 (2.1)
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11.5 (2.8)
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RPE
|
9 (1)
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9 (1)
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8 (1)
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8 (1)
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8 (1)
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VIFT : maximal
running speed, HRpeak : peak heart rate, [La]b :
blood lactate concentration,
RPE : rating of perceived exertion, 30-15IFT : original
30-15IFT, 30-15IFT-CONT : modified version of
the 30-15IFT without a rest period, 30-15IFT-LINE
: modified version of the 30-15IFT without change of direction,
30-15IFT-28m : modified version of the 30-15IFT
with 28-m shuttles. *: difference vs. 30-15IFT (p
< 0.05) †: difference vs. 30-15IFT-LINE (p <
0.05) ‡: difference vs. 30-15IFT-LINE with effect
size considered as moderate (>0.5) §: difference vs. 30-15IFT-LINE
with effect size considered as small (0.2<ES≤0.5)
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