Circulating nitrate-nitrite reduces oxygen uptake for improving resistance exercise performance after rest time in well-trained CrossFit athletes
Abstract This study aimed to determine the effects of circulating nitrate plus nitrite (NOx) concentrations on resistance exercise performance, VO2 and biomarkers of muscle damage. Eleven well-trained male CrossFit athletes (29.2 ± 3.7 years, 78.9 ± 5.4 kg, 175.1 ± 6.3 cm) carried out a resistance e...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-06-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-13786-x |
| _version_ | 1818253171910246400 |
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| author | Manuel Vicente Garnacho-Castaño Sergio Sánchez-Nuño Lorena Molina-Raya Teresa Carbonell José Luis Maté-Muñoz Eulogio Pleguezuelos-Cobo Noemí Serra-Payá |
| author_facet | Manuel Vicente Garnacho-Castaño Sergio Sánchez-Nuño Lorena Molina-Raya Teresa Carbonell José Luis Maté-Muñoz Eulogio Pleguezuelos-Cobo Noemí Serra-Payá |
| author_sort | Manuel Vicente Garnacho-Castaño |
| collection | DOAJ |
| description | Abstract This study aimed to determine the effects of circulating nitrate plus nitrite (NOx) concentrations on resistance exercise performance, VO2 and biomarkers of muscle damage. Eleven well-trained male CrossFit athletes (29.2 ± 3.7 years, 78.9 ± 5.4 kg, 175.1 ± 6.3 cm) carried out a resistance exercise test after drinking 140 mL of beetroot juice (BJ) or placebo. The test consisted of repeating the same resistance exercise routine twice: wall ball shots plus full back squat with 3-min rest (1st routine) or without rest (2nd routine) between the two exercises. Higher NOx plasma levels were verified after BJ than placebo in the pretest and post-test (p < 0.001). A higher number of repetitions was observed after BJ intake compared to placebo in the full back squat exercise during the first routine (p = 0.004). A significantly reduced VO2 was detected after BJ intake compared to placebo during rest and full back squat execution in the first routine (p < 0.05). Plasma myoglobin concentrations were significantly increased with BJ compared to placebo (p = 0.036). These results showed that plasma NOx levels reduced VO2 after BJ intake during rest time. These reduced VO2 was a key factor for improving full back squat performance during the first routine. |
| first_indexed | 2024-12-12T16:35:50Z |
| format | Article |
| id | doaj.art-284f770ba8a14c16863d2da62bb5bc99 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-12T16:35:50Z |
| publishDate | 2022-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-284f770ba8a14c16863d2da62bb5bc992022-12-22T00:18:40ZengNature PortfolioScientific Reports2045-23222022-06-0112111110.1038/s41598-022-13786-xCirculating nitrate-nitrite reduces oxygen uptake for improving resistance exercise performance after rest time in well-trained CrossFit athletesManuel Vicente Garnacho-Castaño0Sergio Sánchez-Nuño1Lorena Molina-Raya2Teresa Carbonell3José Luis Maté-Muñoz4Eulogio Pleguezuelos-Cobo5Noemí Serra-Payá6Campus Docent Sant Joan de Déu, Universidad de BarcelonaCampus Docent Sant Joan de Déu, Universidad de BarcelonaCampus Docent Sant Joan de Déu, Universidad de BarcelonaDepartment of Cell Biology, Physiology and Immunology, University of BarcelonaDepartment of Radiology, Rehabilitation and Physiotherapy, Complutense University of MadridPhysical Medicine and Rehabilitation Department, Hospital de MataróSchool of Health Sciences, TecnoCampus-Pompeu Fabra UniversityAbstract This study aimed to determine the effects of circulating nitrate plus nitrite (NOx) concentrations on resistance exercise performance, VO2 and biomarkers of muscle damage. Eleven well-trained male CrossFit athletes (29.2 ± 3.7 years, 78.9 ± 5.4 kg, 175.1 ± 6.3 cm) carried out a resistance exercise test after drinking 140 mL of beetroot juice (BJ) or placebo. The test consisted of repeating the same resistance exercise routine twice: wall ball shots plus full back squat with 3-min rest (1st routine) or without rest (2nd routine) between the two exercises. Higher NOx plasma levels were verified after BJ than placebo in the pretest and post-test (p < 0.001). A higher number of repetitions was observed after BJ intake compared to placebo in the full back squat exercise during the first routine (p = 0.004). A significantly reduced VO2 was detected after BJ intake compared to placebo during rest and full back squat execution in the first routine (p < 0.05). Plasma myoglobin concentrations were significantly increased with BJ compared to placebo (p = 0.036). These results showed that plasma NOx levels reduced VO2 after BJ intake during rest time. These reduced VO2 was a key factor for improving full back squat performance during the first routine.https://doi.org/10.1038/s41598-022-13786-x |
| spellingShingle | Manuel Vicente Garnacho-Castaño Sergio Sánchez-Nuño Lorena Molina-Raya Teresa Carbonell José Luis Maté-Muñoz Eulogio Pleguezuelos-Cobo Noemí Serra-Payá Circulating nitrate-nitrite reduces oxygen uptake for improving resistance exercise performance after rest time in well-trained CrossFit athletes Scientific Reports |
| title | Circulating nitrate-nitrite reduces oxygen uptake for improving resistance exercise performance after rest time in well-trained CrossFit athletes |
| title_full | Circulating nitrate-nitrite reduces oxygen uptake for improving resistance exercise performance after rest time in well-trained CrossFit athletes |
| title_fullStr | Circulating nitrate-nitrite reduces oxygen uptake for improving resistance exercise performance after rest time in well-trained CrossFit athletes |
| title_full_unstemmed | Circulating nitrate-nitrite reduces oxygen uptake for improving resistance exercise performance after rest time in well-trained CrossFit athletes |
| title_short | Circulating nitrate-nitrite reduces oxygen uptake for improving resistance exercise performance after rest time in well-trained CrossFit athletes |
| title_sort | circulating nitrate nitrite reduces oxygen uptake for improving resistance exercise performance after rest time in well trained crossfit athletes |
| url | https://doi.org/10.1038/s41598-022-13786-x |
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