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Table 4 Average performance, cardio-respiratory and perceived exertion data for mid 10-min split (11–20 min) during the 30 min TT

From: The effect of two β-alanine dosing strategies on 30-minute rowing performance: a randomized, controlled trial

 

βA1

βA2

PL

Variable

T1

T2

T3

T1

T2

T3

T1

T2

T3

Distance (m)

2449 ± 67

2478 ± 56

2502 ± 60*

2458 ± 35

2477 ± 36

2497 ± 34

2365 ± 63

2373 ± 47

2362 ± 60

Power (W)

189.8 ± 16.2

199.9 ± 14.3

201.4 ± 16.7

197.6 ± 10.2

199.4 ± 9.1

201.1 ± 7.9

168.8 ± 14.3

168.7 ± 11.9

169.4 ± 14.7

Power (W·kg− 1)

2.23 ± 0.13

2.35 ± 0.10

2.37 ± 0.14

2.47 ± 0.15

2.50 ± 0.14

2.52 ± 0.13

2.04 ± 0.14

2.04 ± 0.14

2.03 ± 0.14

HR (b·min− 1)

174 ± 4

177 ± 3

178 ± 2

169 ± 4

173 ± 53

172 ± 4

171 ± 5

170 ± 4

170 ± 4

RPE

7.7 ± 0.3

7.7 ± 0.2

7.6 ± 0.3

6.9 ± 0.7

7.0 ± 0.6

7.7 ± 0.4

6.2 ± 0.5

6.9 ± 0.4

7.4 ± 0.4

VE (L·min− 1)

88.8 ± 6.7

91.0 ± 4.0

88.6 ± 5.3

83.5 ± 2.5

78.4 ± 3.9

82.5 ± 2.8

83.8 ± 2.2

78.5 ± 3.4

80.1 ± 3.1

VO2 (L·min− 1)

3.28 ± 0.26

3.38 ± 0.23

3.60 ± 0.44

3.17 ± 0.13

3.14 ± 0.14

3.10 ± 0.16

3.07 ± 0.13

2.69 ± 0.10

3.00 ± 0.19

VCO2 (L·min− 1)

3.20 ± 0.22

3.30 ± 0.12

3.26 ± 0.20

3.30 ± 0.16

2.97 ± 0.14

3.20 ± 0.19

3.29 ± 0.25

2.98 ± 0.25

3.11 ± 0.25

RER

1.04 ± 0.02

1.02 ± 0.01

0.99 ± 0.03

0.97 ± 0.04

0.97 ± 0.02

0.97 ± 0.04

1.00 ± 0.02

1.03 ± 0.01

1.04 ± 0.03

  1. Data in Table 4 refers to the second 10-min split of the 30-min TT. Time points denoted by T1-T3. HR heart rate, RPE rating of perceived exertion, VE minute ventilation, VO2 absolute oxygen uptake, VCO2 absolute carbon dioxide, RER respiratory exchange ratio. * = significant difference within group T1-T3 (P = 0.01)