Training Adaptations With and Without Ventilatory Training Device

Inclusion Criteria: * Males and females between the ages of 18 and 35 (inclusive) who participate in at least 150 minutes per week of physical activity. * Have not participated in HIFT training in the last 6 months. * Provided written and dated informed consent to participate in the study. * In good health as determined by medical history and is cleared for exercise. * Participant will be asked about dietary supplementation use within the past 6 months. * If participant began taking a supplement within the past month, subject will be asked to discontinue supplement use followed by a 2-week washout prior to participation. * In all other cases, we will request that participant maintain supplement use. Exclusion Criteria: * Any musculoskeletal injuries that would prevent exercising. * Any metabolic disorder including known electrolyte abnormalities, diabetes, uncontrolled thyroid disease, adrenal disease or hypogonadism. * Any inborn error of metabolism. * History of hepatorenal, musculoskeletal, autoimmune, or neurologic disease. * Participants with a personal history of heart disease, high blood pressure (systolic \>140 mm Hg \& diastolic \>90 mm Hg), * Participants who are pregnant, planning to become pregnant, or lactating.