The Effect of intermittent fasting and continuous low-moderate intensity physical activity on fat-oxidation rates and commonly used fatness-measurements: a sustainable approach for combatting the obesity epidemic
Mini-Oral Presentation C2.14
DOI:
https://doi.org/10.14288/hfjc.v14i3.768Keywords:
Weight Management, Skinfolds, Bioelectrical ImpedanceAbstract
Background: The World Health Organization estimates that within the next few years non-communicable diseases will become the principal global causes of morbidity and mortality. While customarily employed techniques for weight loss have proven to not provide sustainable resolutions, intermittent fasting (IF) has gained popularity as a healthy lifestyle and weight management approach. Purpose: To examine the effects of IF (16 hr) and manageable physical activity (PA) continuous light-moderate intensity interventions to combat overweightness which ultimately contributes to the growing obesity epidemic. Methods: 10 middle-aged women were recruited via snowball technique. Adiposity was assessed using sum of skinfolds, waist circumference, body mass index, % body fat via bioelectrical impedance, and aerobic fitness plus fat-oxidation rates were measured using discrete open circuit spirometry following an overnight fast. Results: Post 3-weeks of the combined IF and PA intervention, study participants experienced a statistically significant (p<0.05) decrease of; -2.5% in body mass, -8.5% in the sum of skinfolds, -2.7% waist circumference. Statistically significant (p<0.05) improvements were observed in; relative VO2max + 8.9%, absolute VO2max + 6.7% and peak fat-oxidation +11.7%. Conclusions: The statistically significant preliminary findings of this combined 3-week IF and PA intervention showed changes in subcutaneous and visceral adiposity, improvements in peak fat-oxidation rates, increases in VO2max, and retention or improvement of estimated fat free mass. These data demonstrate the combined IF and PA intervention efficacy for weight loss. Funding: Non-received.
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Copyright (c) 2021 Loren Yavelberg, Norman Gledhill, Veronica Jamnik
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