Can metabolic thresholds be used as exercise intensity markers in adult men with obesity – fat burn points used as an exercise marker

Peric, R.; Nikolovski, Z.

Can metabolic thresholds be used as exercise intensity markers in adult men with obesity – fat burn points used as an exercise marker

2020

Peric, R. | Nikolovski, Z.

We aimed to determine the exercise intensity eliciting the highest (FATₘₐₓ) and the lowest (FATₘᵢₙ) fat oxidation rate in sedentary men with obesity and to examine if these intensities correlate with their individual aerobic (AeT) and anaerobic (AnT) thresholds, respectively. Nineteen obese males performed breath-by-breath analysis to assess maximal oxygen consumption (VO₂ₘₐₓ) and to calculate their fat oxidation rate. Pearson correlation coefficient (r), coefficient of determination (R²) and paired t-test were used to evaluate VO₂ at AeT and at FATₘₐₓ and VO₂ at AnT and at FATₘᵢₙ, respectively. FATₘₐₓ and AeT occurred at 42.80±2.68% of VO2max and 43.02±2.73% of VO₂ₘₐₓ, while FATₘᵢₙ and AnT occurred at 53.40±3.65% of VO₂ₘₐₓ and 53.38±3.65% of VO₂ₘₐₓ, respectively. A high correlations were found between intensities matching FATₘₐₓ and AeT (r=0.86, P<0.01) and those at FATₘᵢₙ and at AnT (r=0.99, P<0.01). The existing correlations suggest that metabolic thresholds may be used as exercise intensity markers assuring more tailored exercise approach in men with obesity.

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