Research article - (2012)11, 26 - 30
High-Volume Resistance Training Session Acutely Diminishes Respiratory Muscle Strength
Daniel A. Hackett, Nathan A. Johnson, Chin-Moi Chow
Discipline of Exercise and Sport Science, University of Sydney, Australia

Daniel A. Hackett
✉ Discipline of Exercise and Sport Science, University of Sydney, Australia
Email: daniel.hackett@sydney.edu.au
Received: 05-10-2011 -- Accepted: 10-11-2011
Published (online): 01-03-2012
ABSTRACT

This study investigated the effect of a high-volume compared to a low-volume resistance training session on maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP). Twenty male subjects with resistance training experience (6.2 ± 3.2 y), in a crossover trial, completed two resistance training protocols (high-volume: 5 sets per exercise; low-volume: 2 sets per exercise) and a control session (no exercise) on 3 separate occasions. MIP and MEP decreased by 13.6% (p < 0.01) and 14.7% (p < 0.01) respectively from pre-session MIP and MEP, following the high-volume session. MIP and MEP were unaffected following the low-volume or the control sessions. MIP returned to pre-session values after 40 minutes, whereas MEP remained significantly reduced after 60 minutes post-session by 9.2% compared to pre-session (p < 0.01). The findings suggest that the high-volume session significantly decreased MIP and MEP post-session, implicating a substantially increased demand on the respiratory muscles and that adequate recovery is mandatory following this mode of training.
Key words: Respiratory pressures, core stability, hyperventilation, intra-abdominal pressure, Valsalva maneuver

Key Points
  • Respiratory muscular strength performance is acutely diminished following a high-volume whole-body resistance training session.
  • Greater ventilatory requirements and generation of IAP during the high-volume resistance training session may have contributed to the increased demand placed on the respiratory muscles.
  • Protracted return of respiratory muscular strength performance to baseline levels may have implications for individuals prior to engaging in subsequent exercise bouts.








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High-Volume Resistance Training Session Acutely Diminishes Respiratory Muscle Strength
Daniel A. Hackett, Nathan A. Johnson, Chin-Moi Chow
2012(11), 26 - 30.
DOI: https://doi.org/