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Table 3 Average performance, cardio-respiratory and perceived exertion data for initial 10-min split (0–10 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)

2426 ± 87

2503 ± 56#

2525 ± 61*

2483 ± 45

2481 ± 40

2544 ± 42b

2318 ± 89

2336 ± 71

2363 ± 74

Power (W)

185.3 ± 21.1

203.1 ± 15.5#

204.4 ± 16.4*

197.2 ± 10.6

197.9 ± 9.3

209.2 ± 9.2

159.8 ± 20.1

161.7 ± 15.5

165.7 ± 17.0

Power (W·kg− 1)

2.16 ± 0.19

2.38 ± 0.12#

2.41 ± 0.14*

2.47 ± 0.15

2.48 ± 0.14

2.62 ± 0.13

1.93 ± 0.22

1.94 ± 0.17

1.99 ± 0.19

HR (b·min− 1)

164 ± 4

171 ± 4

172 ± 3*

159 ± 5

165 ± 5

166 ± 4*

159 ± 7

161 ± 6

159 ± 6

RPE

6.1 ± 0.4

6.3 ± 0.2

6.1 ± 0.5

5.1 ± 0.6

5.1 ± 0.4

6.2 ± 0.5

4.4 ± 0.5

4.9 ± 0.6

5.0 ± 0.5

VE (L·min− 1)

78.6 ± 6.4

81.6 ± 2.8

84.0 ± 4.0

76.4 ± 2.7

77.2 ± 2.6

77.8 ± 2.2

71.8 ± 4.4

73.8 ± 4.4

72.5 ± 3.7

VO2 (L·min− 1)

3.03 ± 0.26

3.07 ± 0.16

3.23 ± 0.23

2.90 ± 0.15

3.16 ± 0.16

3.13 ± 0.17

2.65 ± 0.18

2.50 ± 0.21

2.47 ± 0.24

VCO2 (L·min− 1)

3.05 ± 0.26

3.04 ± 0.16

3.12 ± 0.20

3.13 ± 0.20

2.95 ± 0.15

3.18 ± 0.21

2.89 ± 0.27

2.76 ± 0.22

2.74 ± 0.19

RER

0.96 ± 0.02

0.91 ± 0.04

0.89 ± 0.05

0.93 ± 0.05

0.90 ± 0.04

0.82 ± 0.04

0.89 ± 0.03

0.91 ± 0.03

0.95 ± 0.02

  1. Data in Table 3 refers to the first 10-min split of the 30-min TT. Time points denoted by T1-T3. Abbreviations: HR heart rate, RPE rating of perceived exertion, VE minute ventilation, VO2 absolute oxygen uptake, VCO2 absolute carbon dioxide, RER respiratory exchange ratio. # = significantly different T1-T2 within group only (P < 0.03); * = significant difference within group T1-T3 (P < 0.05); b = significant difference T2-T3 within group only (P = 0.01)