Studies related to VO₂ Max and Ketogenic diet

Impact Of A 6-week Non-energy-restricted Ketogenic Diet On Physical Fitness, Body Composition And Biochemical Parameters In Healthy Adults

Effect Decrease
Values Vo2 Peak (absolutely). L/min. Before 2.55 ± 0.68, after 2.49 ± 0.69. Relative (ml/min*kg). Before 36.7 ± 8.5, after 36.8 ± 9.0
Trial Design Non-controlled trial
Trial Length 1-6 months
Number of Subjects 42
Sex n/a
Body Types Overweight, Average
Notes for this study:
In a non-controlled, unblinded trial, 42 healthy participants underwent a ketogenic diet for 6 weeks. The diets weren't energy-restricted and were designed to provide to provide 75% fat, 15-20% protein, and 5-10% carbohydrates with a maximum of 20-40 g of carbohydrate per day.

There was a small but statistically significant reduction in weight, fat mass, fat-free mass, fasting glucose, insulin, and fT3. There was a statistically significant increase in LDL, total cholesterol, fT4 and uric acid.

Exercise tests were also performed. Maximum handgrip strength was significant increased by about 1 kg, absolute VO2 peak was reduced but not relative VO2 peak. Pmax was significantly reduced. Other outcomes can be found in the respective values boxes of the HEM.