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Physiological responses during linear periodized training in rats.

Gustavo Gomes de Araujo1, Marcelo Papoti, Ivan Gustavo Masselli Dos Reis

  • 1Faculty of Physical Education, Campinas State University (UNICAMP), Av Erico Verissimo, 701, Cidade Universitaria Zeferino Vaz, Barao Geraldo, CEP 13.083-851, Campinas, Caixa Postal 6134, São Paulo, Brazil.

European Journal of Applied Physiology
|June 18, 2011
PubMed
Summary
This summary is machine-generated.

Linear periodized training in rats enhanced both aerobic and anaerobic performance. Stress biomarkers decreased during the taper period, indicating improved physiological adaptation and readiness for peak performance.

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Area of Science:

  • Exercise Physiology
  • Sports Science
  • Biochemistry

Background:

  • Periodized training is crucial for optimizing athletic performance.
  • Understanding the physiological adaptations to different training phases is essential for athletes and coaches.
  • Limited research exists on the specific effects of linear periodization on key performance indicators and biomarkers in animal models.

Purpose of the Study:

  • To investigate the impact of linear periodized training (LPT) on aerobic and anaerobic performance in rats.
  • To analyze changes in glycogen stores, hormone levels, enzyme activities, and antioxidant status during different training phases.
  • To evaluate the relationship between stress biomarkers and performance outcomes following LPT.

Main Methods:

  • Seventy male Wistar rats were divided into control (CT) and LPT groups.
  • LPT involved a 12-week program with basic, specific, and taper mesocycles.
  • Measurements included aerobic/anaerobic performance, glycogen, testosterone, corticosterone, creatine kinase, lactate dehydrogenase, and antioxidant markers.

Main Results:

  • LPT group showed higher aerobic performance than CT post-basic, specific, and taper phases.
  • Anaerobic index was higher in LPT post-basic and taper compared to CT.
  • Creatine kinase and catalase levels decreased post-taper; liver glycogen increased post-taper.

Conclusions:

  • Linear periodized training effectively enhances both aerobic and anaerobic performance in rats.
  • The taper period is associated with reduced stress biomarkers and increased liver glycogen, suggesting improved recovery and readiness.
  • These findings provide insights into optimizing training protocols for performance enhancement and physiological adaptation.