High-Intensity Interval Training on Pre-Hypertensive Subjects

Despite exercise training decrease blood pressure in 'average' terms, there is a wide interindividual variability after exercise training, being yet unknown what mode of exercise (e.g. endurance, strength, concurrent, or high intensity interval training) produce more/less non-responder (NR) prevalence (i.e., percentage of subjects who experienced a non-change/worsened response after training in some outcome).

Inclusion criteria

• Written informed consent;
• Interested in improving health and fitness;
• Systolic blood pressure > 120 mmHg and < 140 mmHg, and/or DBP ≥ 80 and < 90 mmHg according with standard classification;
• No drug therapy during the previous 3 months;
• Body mass index (BMI) 25 and 35 kg/m2); (c) physically inactive (according to the International Physical Activity Questionnaire previously validated in Chilean population)
• Normal /mild altered lipid profile (total cholesterol [TC] ~200 and ≤250 mg/dL, low-density lipids [LDL-C] ~140 mg/dL and ≤200 mg/dL, high-density lipids [HDL-C] ≥20 and ~40 mg/dL, triglycerides ~150 and ≤250 mg/dL) according with standard classification.

Exclusion criteria

• Cardiovascular contraindications to exercise histories of stroke;
• Asthma and chronic obstructive pulmonary disease;
• Musculoskeletal disorder such as low back pain;
• Smokers in the last 3 months were not included in the study.