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European Journal of Nutrition

, Volume 53, Issue 1, pp 243–249 | Cite as

Short bouts of anaerobic exercise increase non-esterified fatty acids release in obesity

  • Alberto Salvadori
  • Paolo FanariEmail author
  • Paolo Marzullo
  • Franco Codecasa
  • Ilaria Tovaglieri
  • Mauro Cornacchia
  • Amelia Brunani
  • Livio Luzi
  • Erminio Longhini
Original Contribution

Abstract

Purpose

It is demonstrated that aerobic exercise plays an important role in weight loss programs for obesity by increasing 24 h metabolic rate. While aerobic exercise can result in health and fitness benefits in obese subjects, also independently of weight loss, not completely clear are the effects of bouts of hard exercise on metabolic outcomes. The aim of this study was to test the hypothesis that short-term aerobic activity with anaerobic bouts might result in a greater improvement in the management of obesity than aerobic activity alone.

Methods

We studied 16 obese subjects (eight men) during a progressive cycloergometric test up to exhaustion, before and after 4 weeks of two different training schedules (6 days/week). Insulin and glycaemia, non-esterified fatty acids (NEFA) and lactic acid were sampled. Group A (eight subjects, four men) performed an aerobic cycle workout; Group B (eight subjects, four men) performed a 25 min aerobic workout followed by 5 min of anaerobic workout. All the subjects maintained their individual eating habits.

Results

The post-training test showed a decrease in AUCs NEFA in Group A (p < 0.05) and an increase in Group B (p < 0.05), together with an increase in lactic acid in Group A and a decrease in Group B (p < 0.01). β-cell function (HOMA2-B) revealed a reduction only in Group A (p < 0.05). Group B achieved a greatest reduction in body fat mass than Group A (p < 0.05).

Conclusions

Aerobic plus anaerobic training seem to produce a greater response in lipid metabolism and not significant modifications in glucose indexes; then, in training prescription for obesity, we might suggest at starting weight loss program aerobic with short bouts of anaerobic training to reduce fat mass and subsequently a prolonged aerobic training alone to ameliorate the metabolic profile.

Keywords

Obesity Exercise Anaerobic threshold Non-esterified fatty acids 

Notes

Conflict of interest

On behalf of all authors, the corresponding author states that there is no conflict of interest.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Alberto Salvadori
    • 1
  • Paolo Fanari
    • 1
    Email author
  • Paolo Marzullo
    • 2
    • 3
  • Franco Codecasa
    • 1
  • Ilaria Tovaglieri
    • 1
  • Mauro Cornacchia
    • 1
  • Amelia Brunani
    • 4
  • Livio Luzi
    • 5
  • Erminio Longhini
    • 1
  1. 1.Division of Respiratory Rehabilitation, H. San GiuseppeIstituto Auxologico ItalianoVerbaniaItaly
  2. 2.Department of Clinical and Experimental MedicineUniversity of Piemonte Orientale ‘A. Avogadro’NovaraItaly
  3. 3.Division of General Medicine, H. San GiuseppeIstituto Auxologico ItalianoVerbaniaItaly
  4. 4.Division of Rehabilitation Medicine, H. San GiuseppeIstituto Auxologico ItalianoVerbaniaItaly
  5. 5.Faculty of Exercise SciencesUniversity of MilanMilanItaly

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