Blood and Salivary Oxidative Stress Biomarkers Following an Acute Session of Resistance Exercise in Humans

Autor(es)

Deminice, R. ^[1] ; Sicchieri, T. ^[2] ; Payao, P. O. ^[1] ; Jordao, A. A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, BR-14049 Ribeirao Preto - Brazil

^[2] Univ Fed Sao Carlos, BR-13560 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF SPORTS MEDICINE; v. 31, n. 9, p. 599-603, SEP 2010.
• Citações Web of Science: 21

Resumo

The aim of the present study was to compare oxidative stress biomarkers determined in blood and saliva before and after acute resistance exercise. 1 week after 1 maximum repetition (1RM) test 11 healthy well-trained males completed a hypertrophy acute session of resistance training including 3 sets of 10 repetitions at 75% of the 1RM, with 90s rest periods between sets. Venous blood and saliva samples were collected before (pre) and 10 min after (post) the resistance training session. A significant (p < 0.05) rise in blood lactate accumulation (pre: 1.6 +/- 0.4 vs. post: 9.5 +/- 2.4) was found post-acute resistance training compared with baseline values. Significant increases (p < 0.05) in TBARS (42%), AOPP (28%), uric acid (27%) and GSH (14%) were detected post-acute resistance training in relation to pre in blood samples. A significant increase (p < 0.05) in uric acid (36%) was found in saliva post-acute resistance training as well as a significant correlation (p < 0.05) between uric acid determined in blood and saliva. Statistical analysis did not reveal any other change in the salivary oxidative stress biomarkers. In conclusion, an acute session of resistance exercise induces oxidative stress in plasma of trained men after acute resistance training, which was not found in saliva samples except for uric acid. (AU)

• Processo FAPESP: 07/08099-5 - Efeitos da suplementação de creatina sobre homocisteína e estresse oxidativo após exercício agudo aeróbio e anaeróbio em ratos
• Beneficiário: Rafael Deminice
• Modalidade de apoio: Bolsas no Brasil - Doutorado