ORIGINAL ARTICLE  EXERCISE PHYSIOLOGY AND BIOMECHANICS 

The Journal of Sports Medicine and Physical Fitness 2018 December;58(12):1781-9

DOI: 10.23736/S0022-4707.17.08015-X

Copyright © 2017 EDIZIONI MINERVA MEDICA

lingua: Inglese

Excess postexercise oxygen consumption and fat oxidation in recreationally trained men following exercise of equal energy expenditure: comparisons of spinning and constant endurance exercise

Marcin LUSZCZYK ¹, Damian J. FLIS ², Ilona SZADEJKO ², Radoslaw LASKOWSKI ¹, Wieslaw ZIOLKOWSKI ² ✉

¹ Departments of Physiology, Gdansk University of Physical Education and Sport, Gdansk, Poland; ² Department of Bioenergetics and Nutrition, Gdansk University of Physical Education and Sport, Gdansk, Poland

BACKGROUND: Spinning exercise is one of the most popular types of exercise in fitness industry. Its effects on the post exercise metabolism compared to the isocaloric cyclic endurance exercise are not fully understood. The aim of the present study was to compare the effects of isocaloric (299.1±10.8 kcal) spinning vs. endurance exercise on fat and carbohydrate utilization, glucose, lactate, glycerol and NEFA blood concentration during exercise and recovery.
METHODS: Six recreationally active males (age: 23.5±0.71) were tested in two conditions: 1) 30-min spinning; 2) isocaloric continuous exercise. Each trial was followed by a 3-h recovery. Rates of carbohydrate and fat oxidation, the blood glucose, lactate, glycerol and NEFA concentration were assessed at rest, during exercise and recovery.
RESULTS: Spinning induced significantly higher fat and lower carbohydrate oxidation rate during a recovery period in comparison to isocaloric endurance exercise trial. Spinning induced almost six-fold higher increase in lipid to carbohydrate oxidation rate ratio at the beginning of second hour of postexercise period in comparison to constant intensity trial and reached similar values at 3 hours after exercise. Blood lactate was higher (P<0.01) at the end of exercise in spinning than continuous exercise (8.57±0.9 vs. 0.72±0.1 mmol·L-1), but became similar at the 60 min of recovery.
CONCLUSIONS: These data indicate that spinning induces higher metabolic responses during recovery period, and most effectively shifts the pattern of substrate use toward lipids vs. isocaloric endurance exercise.

KEY WORDS: Lipid metabolism - Weight loss - Exercise - Oxygen consumption