Differences in iron intake during pregnancy influence in trainability response of male rat offspring

Author(s)

Franco, Beatriz ; Rodrigues Cavallaro, Lucca Antonio ; Mota, Diego Silva ; Rodrigues, Natalia de Almeida ; Manchado-Gobatto, Fulvia de Barros ; Neves Bezerra, Rosangela Maria ; Esteves, Andrea Maculano

• Document type: Journal article
• Source: Einstein (São Paulo); v. 18, p. 7-pg., 2020-01-01.

Abstract

Objective: To evaluate if different concentrations of iron in diets during pregnancy would interfere in the aerobic and anaerobic performance of the offspring, observed during 8-week swimming training and measured by lactate minimum test. Methods: Pregnant rats were divided into four groups with different dietary iron concentrations: standard (40mg/kg), supplementation (100mg/kg), restriction since weaning, and restriction only during pregnancy (4mg/kg). After birth, the offspring were assigned to their respective groups (Standard Offspring, Supplementation Offspring, Restriction Offspring or Restriction Offspring 2). The lactate minimum test was performed at three time points: before starting exercise training, after 4 weeks and after 8 weeks of exercise training. Results: The Restriction Offspring Group had a significant reduction in the concentration of lactate minimum and in swimming time to exhaustion, after 4 and 8 weeks of training as compared to before training. Therefore, the results showed the Restriction Offspring Group was not able to maintain regularity during training in lactate minimum tests. Conclusion: Our results suggested the Restriction Offspring Group showed a marked decrease in its performance parameters, which may have occurred due to iron restriction. (AU)

• FAPESP's process: 17/11167-4 - Different iron concentration in diet during pregnant influence the offspring aerobic capacity
• Grantee: Lucca Antonio Rodrigues Cavallaro
• Support Opportunities: Scholarships in Brazil - Scientific Initiation