Effects of exercise intensity and creatine loading on post-resistance exercise hypotension
Autor: | Moreno Rodrigues Moreno; Gisela Arsa Cunha; Pedro Luiz Braga; Juliana Hott Fúcio Lizardo; Carmen Sílvia Grubert Campbell; Mara Lucy Dompietro Ruiz Denadai; Herbert Gustavo Simões |
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Sprache: | Englisch; Portugiesisch |
Veröffentlicht: |
2009 |
Quelle: | Directory of Open Access Journals: DOAJ Articles |
Online Zugang: |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/11392 https://doaj.org/toc/1415-8426 https://doaj.org/toc/1980-0037 1415-8426 1980-0037 doi:10.5007/1980-0037.2009v11n4p373 https://doaj.org/article/3fc8ff8fbad54aa3a78deb395571e289 https://doi.org/10.5007/1980-0037.2009v11n4p373 https://doaj.org/article/3fc8ff8fbad54aa3a78deb395571e289 |
Erfassungsnummer: | ftdoajarticles:oai:doaj.org/article:3fc8ff8fbad54aa3a78deb395571e289 |
Zusammenfassung
Postexercise hypotension plays an important role in the non-pharmacological treat-ment of hypertension and is characterized by a decrease in blood pressure after a single exercise bout in relation to pre-exercise levels. This study investigated the effects of exercise intensity and creatine monohydrate supplementation on postexercise hypotension, as well as the possible role of blood lactate in this response. Ten normotensive subjects underwent resistance exercise sessions before (BC) and after (AC) creatine supplementation: 1) muscle endurance (ME) consisting of 30 repetitions at 30% of one-repetition maximum; 2) hypertrophy (HP) consisting of 8 repetitions at 75% of one-repetition maximum. Blood pressure was measured before and after the exercise bout. Blood lactate was measured after the exercise bout. The HP and ME sessions promoted a decrease in systolic blood pressure (∆ -19 ± 1.0 mmHg; ∆ -15 ± 0.9 mmHg, respectively, P< 0.05), which was attenuated after creatine supplementation (∆ -7.1 ± 1.0 mmHg; ∆ -11 ± 1.0 mmHg, respectively, P<0.05). Peak blood lactate was attenuated after creatine supplementation in the HP session (BC: 19 ± 0.4 mM; AC: 15 ± 0.4 mM, P< 0.05) and remained unchanged after creatine supplementation in the ME session (BC: 16 ± 0.8 mM; AC: 14 ± 0.4 mM, P> 0.05). In conclusion, resistance exercise intensity did not influence postexercise hypotension. Creatine supplementation attenuated the decrease in blood pressure after resistance exercise. The results suggest the involvement of blood lactate in post-resistance exercise hypotension.