Acute Beetroot Juice Supplementation Enhances Intermittent Running Performance but Does Not Reduce Oxygen Cost of Exercise among Recreational Adults

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Esen O., Dominguez R., Karayiğit R.

NUTRIENTS, cilt.14, sa.14, 2022 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 14 Sayı: 14
  • Basım Tarihi: 2022
  • Doi Numarası: 10.3390/nu14142839
  • Dergi Adı: NUTRIENTS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Agricultural & Environmental Science Database, BIOSIS, CAB Abstracts, CINAHL, EMBASE, Food Science & Technology Abstracts, MEDLINE, Veterinary Science Database, Directory of Open Access Journals
  • Anahtar Kelimeler: nitric oxide, ergogenic aid, sports nutrition, beetroot juice, exercise performance, DIETARY NITRATE SUPPLEMENTATION, KNEE-EXTENSOR EXERCISE, MODERATE-INTENSITY, BLOOD-PRESSURE, NITRIC-OXIDE, MUSCLE, RESPONSES, EFFICIENCY, TOLERANCE, INCREASE
  • Ankara Üniversitesi Adresli: Evet

Özet

Nitrate (NO3-) supplementation has been reported to enhance intermittent exercise performance; however, its impact on oxygen (O-2) cost during intermittent running exercise is unclear. The aim of this study was to assess if acute NO3- supplementation would elicit performance benefits in recreationally active individuals during the Yo-Yo intermittent recovery level 1 (Yo-Yo IR1) test, with its potential benefit on O-2 consumption (VO2), in a double-blind, randomized, crossover study, 12 recreational males consumed NO3--rich (NIT; similar to 12.8 mmol), and NO3--depleted (PLA; 0.04 mmol) concentrated beetroot juice 3 h before completing the Yo-Yo IR1 test. VO2 was measured at 160, 280 and 440 m (sub-maximal) and when the test was terminated (peak). Performance in the Yo-Yo IR1 was greater with NIT (990 +/- 442.25 m) compared to PLA (870 +/- 357.4 m, p = 0.007). The VO2 was not significantly different at 160 m (1.92 +/- 0.99 vs. 2.1 +/- 0.88 L.min(-1)), 280 m (2.62 +/- 0.94 vs. 2.83 +/- 0.94 L.min(-1)), 440 m (3.26 +/- 1.04 vs. 3.46 +/- 0.98 L.min(-1)) and peak (4.71 +/- 1.01 vs. 4.92 +/- 1.17 L.min(-1)) between NIT and PLA trials (all p > 0.05). The present study has indicated that acute supplementation of NO3- enhanced intermittent running performance but had no effect on VO2 during the Yo-Yo IR1 test in recreational young adults.