Effects of Ketogenic Diet in Divers Breathing Enriched Air Nitrox
Overweight and Obesity, Exertion; Excess, Oxygen Toxicity

About this trial
This is an interventional prevention trial for Overweight and Obesity
Eligibility Criteria
Inclusion Criteria:
- to be in an overweight state (BMI ≥ 25 kg/m2) and no history of orthopedic, cardiovascular, renal or metabolic disorders.
Exclusion Criteria:
- not to be in an overweight state (BMI ≥ 25 kg/m2) and a history of orthopedic, cardiovascular, renal or metabolic disorders.
Sites / Locations
Arms of the Study
Arm 1
Experimental
Divers group
Throughout each dive, subjects performed a 20-minute long mild exercise on an underwater bike. The depth of dive was set at 15 meters, where the subjects performed an activity guided by Borg CR-10 scale at intensity level 3 (25 rpm). The ascent rate was set at 10 m/min, with a decompression stop at 5 meters for 3 min, according to the US Navy Manual Diving Table. 48 h prior to the immersions, none of the participants consumed medications or dived or flew. In the first part of the experiment, all subjects performed a dive breathing Enriched Air Nitrox (EAN, 32% ppO2). Baseline clinical measurements were collected before and after this first dive in order to have a reference [CTRL] and to measure physiological modifications due to immersion [NTRX]. After twenty days of no diving activity, subjects were engaged in a KD for seven days. At the end of this period, subjects performed a single immersion breathing EAN. The measures were performed after this single dive [KETO-NTRX]