Effects of Low-Intensity Blood Flow Restriction Training in Normoxia and Hypoxia Conditions

Acute and Chronic Effects of Low-Intensity Blood Flow Restriction Training in Normoxia and Hypoxia Conditions on Muscle Strength, Thickness, Catecholamine, and Inflammatory Responses in Physically Active Adults

One approach to significantly reducing resistance training intensity while maintaining effectiveness in muscle mass and strength development involves conducting training sessions under hypoxic conditions. This is likely due to heightened physiological responses. While sports science research indicates a substantial impact of hypoxic conditions on immediate increases in metabolic stress and augmented hormonal responses, recent findings suggest that the role of their influence on skeletal muscle adaptations post-resistance training under hypoxic conditions remains unknown. Additionally, there is a lack of reports on whether the type of hypoxia applied via blood flow restriction or chamber differentiates the increase in secretion of these catecholamines in both immediate and long-term aspects.

Inclusion Criteria:

• Regularly physically active (at least 30 mins of structured exercise 3 times per week),
• Sea-level natives,
• Experienced in resistance training (at least one year of experience in regular resistance exercise)

Exclusion Criteria:

• presence of any medical risk factors to exercise and/or exposure to altitude
• presence of any medical condition that would make the protocol unreasonably hazardous for the participant
• smokers