Research article - (2015)14, 849 - 856
Similar Anti-Inflammatory Acute Responses from Moderate-Intensity Continuous and High-Intensity Intermittent Exercise
Carolina Cabral-Santos1, José Gerosa-Neto1, Daniela Sayuri Inoue1, Valéria Leme Gonçalves Panissa2, Luís Alberto Gobbo1, Alessandro Moura Zagatto3, Eduardo Zapaterra Campos1, Fábio Santos Lira1,
1Exercise and Immunometabolism Research Group, Department of Physical Education, Universidade Estadual Paulista, Presidente Prudente, São Paulo, Brazil
2Department of Sports, School of Physical Education and Sports, University of São Paulo, São Paulo, Brazil
3Department of Physical Education, Universidade Estadual Paulista, Bauru, São Paulo, Brazil

Fábio Santos Lira
✉ Exercise and Immunometabolism Research Group, Department of Physical Education, Universidade Estadual Paulista, UNESP, Rua Roberto Simonsen, 305, 19060-900 Presidente Prudente, SP, Brazil
Email: fabiolira@fct.unesp.br
Received: 04-08-2015 -- Accepted: 23-10-2015
Published (online): 24-11-2015

ABSTRACT

The purpose of this study was to compare the effect of high-intensity intermittent exercise (HIIE) versus volume matched steady state exercise (SSE) on inflammatory and metabolic responses. Eight physically active male subjects completed two experimental sessions, a 5-km run on a treadmill either continuously (70% vVO2max) or intermittently (1:1 min at vVO2max). Blood samples were collected at rest, immediately, 30 and 60 minutes after the exercise session. Blood was analyzed for glucose, non-ester fatty acid (NEFA), uric acid, lactate, cortisol, and cytokines (IL-6, IL-10 and TNF-α) levels. The lactate levels exhibited higher values immediately post-exercise than at rest (HIIE 1.34 ± 0.24 to 7.11 ± 2.85, and SSE 1.35 ± 0.14 to 4.06±1.60 mmol·L-1, p < 0.05), but HIIE promoted higher values than SSE (p < 0.05); the NEFA levels were higher immediately post-exercise than at rest only in the SSE condition (0.71 ± 0.04 to 0.82±0.09 mEq/L, respectively, p < 0.05), yet, SSE promoted higher values than HIIE immediately after exercise (HIIE 0.72±0.03 vs SSE 0.82±0.09 mEq·L-1, p < 0.05). Glucose and uric acid levels did not show changes under the different conditions (p > 0.05). Cortisol, IL-6, IL-10 and TNF-α levels showed time-dependent changes under the different conditions (p < 0.05), however, the area under the curve of TNF-α in the SSE were higher than HIIE (p < 0.05), and the area under the curve of IL-6 in the HIIE showed higher values than SSE (p < 0.05). In addition, both exercise conditions promote increased IL-10 levels and IL-10/TNF-α ratio (p < 0.05). In conclusion, our results demonstrated that both exercise protocols, when volume is matched, promote similar inflammatory responses, leading to an anti-inflammatory status; however, the metabolic responses are different.

Key words: High intensity intermittent exercise, steady state exercise, metabolism, inflammation, energy expenditure, cytokines

Key Points
  • Metabolic contribution of both exercise, HIIE and SSE, was different.
  • Both protocols leading to an anti-inflammatory status.
  • HIIE induce a higher energy expenditure take into account total session duration.








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