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Table 3 Agreement data for heart rates, RPE scores and lactate concentrations obtained during a repeated (9 × 30 s) figure-of-eight sprint test with varying rest periods.* †‡

From: Attentional and visual demands for sprint performance in non-fatigued and fatigued conditions: reliability of a repeated sprint test

   Test Retest Mean difference 95% CL
Heart rates     
Base measurement P 76.9 (10.9) 79.9 (15.5) -3.0 -13.4 - 7.4
  NFC 151.6 (10.1) 144.5 (16.9) 7.1 -0.4 - 14.5
  FC 186.9 (7.2) 184.1 (9.9) 2.8 -0.3 - 5.9
Attention-demanding task P 80.3 (17.2) 78.8 (10.9) 1.5 -8.5 - 11.5
  NFC 145.6 (3.8) 142.8 (14.9) 2.8 -1.5 - 7.1
  FC 186.4 (9.2) 184.6 (8.4) 1.7 -1.0 - 4.4
Restricted vision P 78.5 (11.4) 79.6 (9.9) -1.1 -10.3 - 7.8
  NFC 148.2 (13.5) 141.3 (18.3) 6.9 -0.3 - 14.2
  FC 185.1 (7.6) 183.6 (8.1) 1.5 -0.2 - 3.1
RPE scores     
Base measurement P 8.3 (2.1) 8.0 (2.3) 0.3 -1.0 - 1.6
  NFC 13.2 (1.7) 12.6 (1.6) 0.6 -0.3 - 1.5
  FC 16.7 (1.6) 16.5 (1.4) 0.2 -0.2 - 0.6
Attention-demanding task P 8.0 (2.4) 8.1 (2.3) -0.1 -1.1 - 0.9
  NFC 11.8 (1.5) 12.1 (1.9) -0.2 -1.4 - 1.0
  FC 15.2 (1.5) 15.8 (1.7) -0.7 -1.6 - 0.2
Restricted vision P 7.9 (2.1) 8.3 (2.4) -0.4 -1.1 - 0.3
  NFC 12.5 (1.8) 12.6 (1.9) -0.1 -1.0 - 0.9
  FC 15.7 (1.7) 16.2 (1.3) -0.5 -1.3 - 0.3
Lactate concentrations     
Base measurement P 2.1 (1.3) 1.7 (0.6) 0.2 -0.1 - 0.4
  NFC 7.3 (1.8) 6.6 (2.5) 0.4 -0.4 - 1.1
  FC 10.3 (2.7) 9.8 (2.2) 0.2 -0.0 - 0.6
Attention-demanding task P 1.9 (0.9) 1.9 (1.0) -0.0 -0.3 - 0.3
  NFC 6.4 (2.0) 6.1 (1.5) 0.2 -0.4 - 0.7
  FC 9.5 (3.8) 8.4 (2.1) 0.6 -3.4 - 4.5
Restricted vision P 1.8 (0.5) 1.5 (0.4) 0.1 -0.0 - 0.3
  NFC 6.1 (2.1) 5.8 (1.3) 0.2 -0.3 - 0.7
  FC 9.4 (2.8) 8.8 (1.8) 0.3 -0.1- 0.7
  1. * 95% CL, 95% confidence limits; P, pre-test assessment; NFC, assessment at sprint 3; FC, assessment at the end of the sprint test.
  2. Heart rates are expressed in beats·min-1 and lactate concentrations as mmol·L-1.
  3. Values in parentheses are standard deviations.
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