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Table 2 Metabolic and performance measures for pre- and post-supplementation

From: High-intensity interval training and β-hydroxy-β-methylbutyric free acid improves aerobic power and metabolic thresholds

 

Control (n = 8)

PLA-HIIT (n = 13)

HMBFA-HIIT (n = 13)

Measure

Pretest

Posttest

Pretest

Posttest

Pretest

Posttest

VO2peak (ml · kg-1 · min-1)

39.1 ± 4.5

38.9 ± 4.0

38.9 ± 3.4

40.3 ± 2.6

39.8 ± 6.7

42.7 ± 5.1

Ppeak (W)

218.8 ± 41.7

215.6 ± 32.6

221.2 ± 46.6

236.5 ± 48.5

226.9 ± 56.3

246.2 ± 54.8

Tmax (min)

12.5 ± 2.9

12.2 ± 2.3

13.0 ± 3.8

14.2 ± 3.7

13.6 ± 4.7

14.9 ± 4.5

RCP (ml · kg-1 · min-1)

30.5 ± 5.0

28.7 ± 2.7

29.3 ± 3.1

31.9 ± 2.2

32.2 ± 4.2

33.7 ± 3.8

PRCP (W)

175.3 ± 38.8

167.0 ± 24.8

168.4 ± 36.0

185.0 ± 33.5

182.6 ± 33.6

196.5 ± 35.1

VT (ml · kg-1 · min-1)

27.7 ± 3.3

27.2 ± 2.7

28.6 ± 3.1

29.0 ± 4.1

27.8 ± 4.8

31.7 ± 3.7

PVT (W)

156.3 ± 17.7

153.1 ± 28.2

159.6 ± 40.2

169.2 ± 37.0

161.5 ± 39.02

184.6 ± 37.6

  1. Values are means ± SD. HIIT, high-intensity interval training; HMBFA, β-hydroxy-β-methylbutyrate in the free acid form (BetaTor™, Metabolic Technologies Inc, Ames, IA); PLA, placebo; VO2peak, peak oxygen uptake; Ppeak, peak power achieved; Tmax, time to exhaustion during graded exercise test; RCP, respiratory-compensation point; VT, ventilatory threshold.