Relevant bibliographies by topics / Forced Expiratory Technique

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Forced Expiratory Technique'

Author: Grafiati
Published: 4 June 2025
Last updated: 23 June 2025

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Journal articles on the topic "Forced Expiratory Technique"

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Hammer, J., and C. J. Newth. "Effect of lung volume on forced expiratory flows during rapid thoracoabdominal compression in infants." Journal of Applied Physiology 78, no. 5 (1995): 1993–97. http://dx.doi.org/10.1152/jappl.1995.78.5.1993.

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The rapid thoracoabdominal compression (RTC) technique is commonly used in pulmonary function laboratories to assess flow-volume relationships in infants unable to produce a voluntary forced expiration maneuver. This technique produces forced expiratory flows over only a small lung volume segment (i.e., tidal volume). It has been argued that the RTC technique should be modified to measure flow-volume relationships over a larger portion of the vital capacity range to imitate the voluntary maximal forced expiratory maneuver obtained in older children and adults. We examined the effect of volume history on forced expiratory flows by generating forced expiratory flow-volume curves by RTC from well-defined inspiratory volumes delineated by inspiratory pressures of 10, 20, 30, and 40 cmH2O down to residual volume (i.e., the reference volume) in seven intubated and anesthetized infants with normal lungs [age 8.0 +/- 2.0 (SE) mo, weight 6.7 +/- 0.6 kg]. We compared maximal expiratory flows at isovolume points (25 and 10% of forced vital capacity) and found no significant differences in maximal isovolume flow rates measured from the different lung volumes. We conclude that there is no obvious need to initiate RTC from higher lung volumes if the technique is used for flow comparisons. However, compared with measurements of maximal flows at functional residual capacity by RTC from end-tidal inspiration, the initiation of RTC from a defined and reproducible inspiratory level appears to decrease the intrasubject variability of the maximal expiratory flows at low lung volumes.
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Koulouris, Nickolaos G., Georgios Kaltsakas, Anastasios F. Palamidas, and Sofia-Antiopi Gennimata. "Methods for Assessing Expiratory Flow Limitation during Tidal Breathing in COPD Patients." Pulmonary Medicine 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/234145.

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Patients with severe COPD often exhale along the same flow-volume curve during quite breathing as during forced expiratory vital capacity manoeuvre, and this has been taken as indicating expiratory flow limitation at rest (EFLT). Therefore,EFLT, namely, attainment of maximal expiratory flow during tidal expiration, occurs when an increase in transpulmonary pressure causes no increase in expiratory flow.EFLTleads to small airway injury and promotes dynamic pulmonary hyperinflation with concurrent dyspnoea and exercise limitation. In fact,EFLToccurs commonly in COPD patients (mainly in GOLD III and IV stage) in whom the latter symptoms are common. The existing up-to-date physiological methods for assessing expiratory flow limitation (EFLT) are reviewed in the present work. Among the currently available techniques, the negative expiratory pressure (NEP) has been validated in a wide variety of settings and disorders. Consequently, it should be regarded as a simple, non invasive, most practical, and accurate new technique.
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Le Souef, P. N., D. M. Hughes, and L. I. Landau. "Effect of compression pressure on forced expiratory flow in infants." Journal of Applied Physiology 61, no. 5 (1986): 1639–46. http://dx.doi.org/10.1152/jappl.1986.61.5.1639.

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The effect of the force of compression on expiratory flow was evaluated in 19 infants (2-13 mo of age) with respiratory illnesses of varying severity. An inflatable cuff was used to compress the chest and abdomen. Expiratory flow and volume, airway occlusion pressure, cuff pressure (Pc), and functional residual capacity were measured. Transmission of pressure from cuff to pleural space was assessed by a noninvasive occlusion technique. Close correlations (P less than 0.001) were found between Pc and the change in pleural pressure with cuff inflation (delta Ppl,c). Pressure transmission was found to vary between two cuffs of different design and between infants. Several forced expirations were then performed on each infant at various levels of delta Ppl,c. Infants with low maximal expiratory flows at low lung volumes required relatively gentle compression to achieve flow limitation and showed decreased flow for firmer compressions. Flow-volume curves in each infant tended to become more concave as delta Ppl,c increased. These findings underline the importance of knowledge of delta Ppl,c in interpreting expiratory flow-volume curves in infants.
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Lai, Y. L., and H. C. Chou. "Respiratory mechanics and maximal expiratory flow in the anesthetized mouse." Journal of Applied Physiology 88, no. 3 (2000): 939–43. http://dx.doi.org/10.1152/jappl.2000.88.3.939.

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Mice have been widely used in immunologic and other research to study the influence of different diseases on the lungs. However, the respiratory mechanical properties of the mouse are not clear. This study extended the methodology of measuring respiratory mechanics of anesthetized rats and guinea pigs and applied it to the mouse. First, we performed static pressure-volume and maximal expiratory flow-volume curves in 10 anesthetized paralyzed C57BL/6 mice. Second, in 10 mice, we measured dynamic respiratory compliance, forced expiratory volume in 0.1 s, and maximal expiratory flow before and after methacholine challenge. Averaged total lung capacity and functional residual capacity were 1.05 ± 0.04 and 0.25 ± 0.01 ml, respectively, in 20 mice weighing 22.2 ± 0.4 g. The chest wall was very compliant. In terms of vital capacity (VC) per second, maximal expiratory flow values were 13.5, 8.0, and 2.8 VC/s at 75, 50, and 25% VC, respectively. Maximal flow-static pressure curves were relatively linear up to pressure equal to 9 cmH2O. In addition, methacholine challenge caused significant decreases in respiratory compliance, forced expiratory volume in 0.1 s, and maximal expiratory flow, indicating marked airway constriction. We conclude that respiratory mechanical parameters of mice (after normalization with body weight) are similar to those of guinea pigs and rats and that forced expiratory maneuver is a useful technique to detect airway constriction in this species.
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Boccaccino, Alfredo, Diego G. Peroni, Angelo Pietrobelli, et al. "Assessment of variable obstruction by forced expiratory volume in 1 second, forced oscillometry, and interrupter technique." Allergy and Asthma Proceedings 28, no. 3 (2007): 331–35. http://dx.doi.org/10.2500/aap.2007.28.2963.

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Goswami, Sushmita, Javid H. Sagar, and G. Varadharajulu. "Impact of Thera-Pep and Forced Expiratory Technique in Chronic Bronchitis Patients." Indian Journal of Public Health Research & Development 11, no. 1 (2020): 660. http://dx.doi.org/10.37506/v11/i1/2020/ijphrd/193899.

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Dellacà, R. L., P. Santus, A. Aliverti, et al. "Detection of expiratory flow limitation in COPD using the forced oscillation technique." European Respiratory Journal 23, no. 2 (2004): 232–40. http://dx.doi.org/10.1183/09031936.04.00046804.

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Akita, Takefumi, Toshihiro Shirai, Kazutaka Mori, et al. "Association of the forced oscillation technique with negative expiratory pressure in COPD." Respiratory Physiology & Neurobiology 220 (January 2016): 62–68. http://dx.doi.org/10.1016/j.resp.2015.09.002.

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Dr., S. Nagaraja, B. Gajanana Prabhu Dr., and S. M. Prakash Dr. "AN ASSESSMENT OF MEASURED AND SELF-PERCEIVED FORCED EXPIRATORY VOLUME PER SECOND AND PEAK EXPIRATORY FLOW LITER PER MINUTE AMONG HEARING AND VISUALLY IMPAIRED CHILDREN." International Journal of Multidisciplinary Research and Modern Education (IJMRME) 6, no. 1 (2020): 34–39. https://doi.org/10.5281/zenodo.3817142.

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The present situation people with hearing and visual impairment need more support in their physical and psychosocial improvement. Child with visual and hearing impairment is not only face a lot of individual hardships during his premature developing years but also face a many problems and challenges to the responsible adults in his life. The intention of the current examination was to measure the lung capacity of hearing and visually impaired special school children of Karnataka state. Further the level of perception on forced expiratory volume per second and peak expiratory flow volume per minute was also correlated with their actual status. The present study was conducted on four hundred and fourteen (N=414) hearing and visually impaired special school children selected through purposive random sampling technique. The study included adolescents with hearing impairment one hundred and seventy one (N=171) and vision impairment two hundred and forty three (N=243) in male group. Complete subjects were residents of special schools within Karnataka state. Their age ranged between 13 to 18 years. The forced expiratory volume per second and peak expiratory flow volume per minute measurement was done by following the standard procedure. The level of perception on forced expiratory volume per second and peak expiratory flow volume per minute of hearing and visually impaired school children was done using a 3 point likert scale. The forced expiratory volume per second of 13 to 14 years with 2.01 ± 0.48; 2.39 ± 0.46 in 15 to 16 years; and 2.58 ± 0.52 in 17 to 18 years. The peak expiratory flow volume per minute was 290.36 ± 68.99 in 13 to 14 years; 326.95 ± 75.09 in 15 to 16 years; and 352.18 ± 87.00 in 17 to 18 years. On the basis of the findings of the current examination it is concluded that the hearing and visually impaired school going children poor forced expiratory volume per second and peak expiratory flow volume per minute is an indication of lower lung capacity level. Since hearing and visually impaired school going children require to perform their everyday physical exercise at their own, it is imperative to have enough lung capacity. Further, the hearing and visually impaired school children under examination are unable to significantly weak positive linear relationship their lung capacity precisely.
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Hammer, J., and C. J. Newth. "Effort and volume dependence of forced-deflation flow-volume relationships in intubated infants." Journal of Applied Physiology 80, no. 1 (1996): 345–50. http://dx.doi.org/10.1152/jappl.1996.80.1.345.

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The application of negative pressure to the airway opening [called the forced-deflation (FD) technique] allows the examination of maximal expiratory flow-volume curves in intubated infants who are unable to generate a voluntary maximal expiratory maneuver. We explored the questions of effort and volume dependence of flows generated by FD in 18 intubated, sedated, and paralyzed infants [age 10.6 +/- 2.0 (SE) mo; weight 7.2 +/- 0.7 kg] with normal lungs. Effort dependence was assessed by isovolume pressure-flow curves that were constructed in 10 infants from repeated FD maneuvers from total lung capacity (defined as +40 cmH2O) by varying airway opening pressures from 0 (barometric pressure) to -100 cmH2O at intervals of 20 cmH2O. The effect of volume history was assessed by initiating FD maneuvers from different inspiratory volumes delineated by the inspiratory pressures +10, +20, +30, and +40 cmH2O. We compared maximal expiratory flows at isovolume points [50, 25, and 10% forced vital capacity (FVC) of the standard +40/-40 cmH2O FD maneuver] and found that flow limitation consistently occurred in all infants at and below 25% FVC with -40 cmH2O or greater airway opening pressure. We found no significant influence of volume history on maximal flows at and below 25% FVC. Under well-controlled study conditions, we demonstrated excellent reproducibility of maximal expiratory flows at low lung volumes, analogous to those of voluntary forced expiratory maneuvers in adults and older children. This information may be helpful in setting standards for performance and interpretation of FD maneuvers in intubated infants.
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Dissertations / Theses on the topic "Forced Expiratory Technique"

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Silva, Karla Kristine Dames da. "Análise em tempo real da impedância do sistema respiratório e da mobilidade toracoabdominal em portadores de DPOC com obstrução brônquica acentuada." Universidade do Estado do Rio de Janeiro, 2009. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=10036.

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Introdução: A DPOC caracteriza-se pela limitação ao fluxo aéreo associada à resposta inflamatória anormal dos pulmões a partículas ou gases nocivos. As alterações mecânicas decorrentes da DPOC estão relacionadas com a disfunção mecânica das fibras do diafragma, já observadas nas fases iniciais da doença. Alguns estudos têm demonstrado o elevado potencial da Técnica de Oscilações Forçadas (FOT) na detecção das alterações mecânicas da DPOC. Contudo, tais aplicações da FOT não permitiam a análise em tempo real das alterações do sistema respiratório, bem como da mobilidade toracoabdominal destes indivíduos. Desta forma, os objetivos desta pesquisa foram analisar, em tempo real, as alterações de impedância do sistema respiratório nas distintas fases do ciclo em portadores de DPOC, assim como avaliar a movimentação toracoabdominal destes indivíduos. Metodologia: Trata-se de um estudo observacional controlado, prospectivo onde foram analisados 48 indivíduos, 23 indivíduos controles e 25 portadores de DPOC com grau de obstrução acentuado. Os indivíduos realizaram exames de FOT para análise da impedância do sistema respiratório e mobilidade toracoabdominal, simultaneamente. Posteriormente aos exames da FOT os indivíduos foram submetidos à Espirometria. Resultados: Os resultados demonstraram aumento da impedância do sistema respiratório nos indivíduos com DPOC em comparação ao grupo controle, em nos parâmetros estudados (Zt, Zi, Ze, Zii, Zie, Zrs e Zpp) (p<0,0001). Em relação às distintas fases do ciclo, os indivíduos deste estudo apresentaram impedâncias maiores na fase inspiratória quando comparadas à fase expiratória (p<0,004). Somente 10% dos portadores de DPOC apresentaram assincronia toracoabdominal (&#966; &#8805; 45), sendo que os valores médios não apresentaram diferença estatística quando comparados ao grupo controle. Discussão: A impedância total do sistema respiratório (Zt) aumentada nos portadores de DPOC confirma o aumento da carga mecânica do sistema respiratório destes indivíduos. Essas alterações são coerentes com o processo fisiopatológico, evidenciado pela obstrução ao fluxo aéreo e destruição do parênquima pulmonar. O aumento da impedância na fase inspiratória quando comparada à fase expiratória, sugere um aumento no trabalho resistivo e elástico. Não foram evidenciados sinais de assincronia na mobilidade toracoabdominal na maior parte dos indivíduos, sugerindo que alguns mecanismos adaptativos atuam na tentativa de evitar a fadiga do músculo respiratório. Conclusões: A DPOC resulta no aumento da carga mecânica do sistema respiratório, alterações identificadas pelo aumento da impedância do sistema respiratório, medida pela FOT em tempo real. Este aumento foi mais evidente durante a fase inspiratória. A mobilidade toracoabdominal não se mostrou alterada na maior parte dos indivíduos com DPOC. Estes resultados são consistentes com publicações prévias e fundamentos fisiopatológicos, confirmando o potencial da FOT monofreqüência na avaliação das modificações relacionadas à DPOC.<br>Introduction: COPD is carachterized by airflow limitation associated abnormal inflammatory response of the lung to noxious particles or gases. The mechanical alterations associated with COPD have been related with dysfunction of the diaphragm, observed since the initial phases of the disease. Several studies have confirmed the high potential of FOT in the assessment of the mechanics modifications related to COPD. However, such studies did not allow a real-time analysis of the changes in the respiratory system, and the thoracoabdominal mobility of these individuals. Thus, the goals of the present study were to analyze, in real-time, the impedance alterations of the respiratory system in different phases of the respiratory cycle of COPD patients. Methodology: This research consists of a controlled observational study where 48 individuals were analyzed, 23 controls and 25 individuals with COPD and severe airway obstruction. Firstly, they performed simultaneous analysis of impedance of the respiratory system and thoracoabdominal motion. In subsequent examinations, these subjects were submitted to spirometry. Results: The results demonstrated an increase of the respiratory system impedance in individuals with COPD compared with the control group in all of the studied parameters (Zt, Zi, Ze, Zii, Zie, &#916;Zrs e Zpp) (p<0.0001). Considering the different phases of the respiratory cycle, higher impedances were observed in the inspiratory phase (p<0.004). Only 10% of individuals with COPD showed thoracoabdominal asynchrony (&#966;&#8805; 45), and the mean values showed no statistical difference when compared to the control group. Discussions: The total impedance of the respiratory system increased in individuals with COPD, which describes the increase of the mechanic load of the respiratory system in these individuals. These alterations are coherent with the physiopathology of COPD, associated with airflow obstruction and lung parenchyma destruction. The increase of the impedance in the inspiratory phase suggests an increase of the resistive and elastic work. There were not signals of thoracoabdominal asynchrony in the major part of the studied individuals, suggesting that some adaptation mechanisms act to compensate respiratory muscle fatigue. Conclusion: The COPD results in the increase of the mechanic load of the respiratory system. These alterations were identified by the increase of the respiratory system impedance, which was more evidence in the inspiratory phase. The thoracoabdominal asynchrony was not usual in individuals with COPD. Those results are consistent with previously published data and physiopathological fundamentals, confirming the potential of monofrequency FOT in the assessment of the modifications related to COPD.
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Books on the topic "Forced Expiratory Technique"

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Rafferty, Gerrard, and John Moxham. Assessment of Peripheral and Respiratory Muscle Strength in ICU. Oxford University Press, 2014. http://dx.doi.org/10.1093/med/9780199653461.003.0047.

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Skeletal muscle weakness affecting the respiratory and peripheral muscles is common in critically ill patients and can lead to difficulties in weaning, prolonged ICU admission, and significant morbidity in survivors. A number of techniques can be used to assess muscle strength. In the peripheral muscles, volitional techniques employing scoring systems or portable hand dynamometers are relatively simple and quick to use, requiring little or no specialist equipment. Such techniques can, however, only be applied to conscious and cooperative patients, preventing assessment of muscle weakness in many ICU patients. The volitional requirement also limits the ability to distinguish poor motivation and impaired cognition from true loss of muscle function. Non-volitional techniques involving motor nerve stimulation provide measures of muscle force production in non-cooperative patients but require specialist equipment. Normative data for comparative purposes are limited. Also, it is not clear which peripheral muscle best reflects generalized muscle weakness. Measurements of maximal inspiratory and expiratory pressures are widely used to assess respiratory muscle strength in ICU patients and are applicable to patients who can make some respiratory effort. As with all tests requiring patient cooperation, reliability is limited. Phrenic nerve stimulation allows direct, non-volitional assessment of diaphragm and phrenic nerve function, and normative values for comparative purposes are available. Magnetic phrenic nerve stimulation is well tolerated, can be performed in the presence of vascular catheters, and is used to document respiratory muscle weakness and track progression in critically ill patients.
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Book chapters on the topic "Forced Expiratory Technique"

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Cheshire, William P. "Cardiovagal Reflexes." In Clinical Neurophysiology. Oxford University Press, 2009. http://dx.doi.org/10.1093/med/9780195385113.003.0039.

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Noninvasive cardiovascular tests are reliable and reproducible and are widely used to evaluate autonomic function in human subjects. The heart rate response to deep breathing is probably the most reliable test for assessing the integrity of the vagal afferent and efferent pathways to the heart. This is because respiratory sinus arrhythmia is a relatively pure test of cardiovagal function, whereas many other conditions, such as plasma volume, antecedent rest, and cardiac and peripheral sympathetic functions, factor into the Valsalva response. Heart rate variability to deep breathing is usually tested at a breathing frequency of 5 or 6 respirations per minute and decreases linearly with age. The Valsalva maneuver consists of a forced expiratory effort against resistance and produces mechanical (phases I and III) and reflex (phases II and IV) changes in arterial pressure and heart rate. When performed under continuous arterial pressure monitoring with a noninvasive technique, the Valsalva maneuver provides valuable information about the integrity of the cardiac parasympathetic, cardiac sympathetic, and sympathetic vasomotor outputs. The responses to the Valsalva maneuver are affected by the position of the subject and the magnitude and duration of the expiratory effort. In general, it is performed at an expiratory pressure of 40 mm Hg sustained for 15 seconds. The Valsalva ratio, the relationship between the maximal heart rate response during phase II (straining) and phase IV (after release of straining), has been considered a test of cardiac parasympathetic function. However, without simultaneous recording of arterial pressure, this may be misleading. An exaggerated decrease in arterial pressure during phase II suggests sympathetic vasomotor failure, whereas an absence of overshoot during phase IV indicates the inability to increase cardiac output and cardiac adrenergic failure.
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Amrohit, Gitesh. "Forced Expiratory Techniques." In The Pocketbook of Chest Physiotherapy. Jaypee Brothers Medical Publishers (P) Ltd., 2010. http://dx.doi.org/10.5005/jp/books/11057_34.

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Debost, Michel. "Appoggio." In The Simple Flute. Oxford University PressNew York, NY, 2002. http://dx.doi.org/10.1093/oso/9780195145212.003.0009.

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Abstract Appoggio is an air-management technique used by singers of the Italian school. The English “breath support” is not an adequate translation. Appoggio is a system of combining and isometrically balancing the abdominal and chest muscles’ action in the inhaling procedure as well as in the exhaling and tone-producing phenomenon. “To sustain a given note, the air should be expelled slowly; to attain this end, the respiratory (inspiratory) muscles, by continuing their action, strive to retain the air in the lungs, and oppose their action to that of the expiratory muscles, which is called lotta vocale or vocal struggle.” Upon blowing, the technique of appoggio,meaning the act of leaning in Italian, is the process that would come closest to what is mistakenly meant by diaphragmatic support. If the intercostalmuscles did not isometrically balance it, the support of the abdominal muscles, without opposition, would lead to a rapid deflation of the lungs. Appoggio prevents the collapse of the chest. Schematically, the singer or flutist’s effort is to not blow but to realize this inner balance. “After breathing in as far as possible, we must use considerable inspiratory force to keep the air from going out with a sigh. You have to brake your exhaling, using inspiratory muscles to hold back, to keep the chest volume from decreasing too rapidly because of its own elasticity.”
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Conference papers on the topic "Forced Expiratory Technique"

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Mahadev, Sriram, Gregory King, Cheryl M. Salome, Chris Htun, and Robin Schoeffel. "Multifrequency Signals Identify Expiratory Flow Limitation Using Forced Oscillation Technique." In American Thoracic Society 2011 International Conference, May 13-18, 2011 • Denver Colorado. American Thoracic Society, 2011. http://dx.doi.org/10.1164/ajrccm-conference.2011.183.1_meetingabstracts.a2185.

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Oomen, Fredrike, P. J. Sterk, Dewi Groeneveld-Tjiong, and Joost van den Aardweg. "Posture Dependent Expiratory Flow Limitation In Obese Subjects Measured By Within-Breath Forced Oscillation Technique." In American Thoracic Society 2011 International Conference, May 13-18, 2011 • Denver Colorado. American Thoracic Society, 2011. http://dx.doi.org/10.1164/ajrccm-conference.2011.183.1_meetingabstracts.a6304.

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Cain, Chuck, Josh Stachel, Jim Mckenzie, Mike Kissel, Bob Romano, and Bill Hardy. "Forced oscillation technique (FOT) in non-invasive ventilation (NIV) for treatment of expiratory flow limitation (EFL)." In ERS International Congress 2019 abstracts. European Respiratory Society, 2019. http://dx.doi.org/10.1183/13993003.congress-2019.pa2328.

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Govoni, Leonardo, Daniela Savi, Pasquale P. Pompilio, et al. "Automatic Detection Of Expiratory Flow Limitation By Forced Oscillation Technique (FOT) During Non-Invasive Ventilation (NIV)." In American Thoracic Society 2011 International Conference, May 13-18, 2011 • Denver Colorado. American Thoracic Society, 2011. http://dx.doi.org/10.1164/ajrccm-conference.2011.183.1_meetingabstracts.a4578.

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Andrade Almeida, Paula Cristina, Mouaid Aljehani, Glenn Hearson, Tim W. Harrison, and Matthew J. Martin. "The assessment of tidal expiratory flow limitation and small airways disease using forced oscillation technique during hospitalization for asthma attacks and recovery." In ERS Congress 2024 abstracts. European Respiratory Society, 2024. http://dx.doi.org/10.1183/13993003.congress-2024.pa3463.

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Milesi, Ilaria, Roberto Porta, Simona Cacciatore, Michele Vitacca, Raffaele Dellacà, and Luca Barbano. "Effects of automatic tailoring of Positive End Expiratory Pressure (PEEP) by Forced Oscillation Technique (FOT) during nocturnal Non-Invasive Ventilation (NIV) in Chronic Obstructive Pulmonary Disease (COPD)." In ERS International Congress 2017 abstracts. European Respiratory Society, 2017. http://dx.doi.org/10.1183/1393003.congress-2017.pa2179.

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Deak, Gratielaflavia, and Iuliana Borosbalint. "A 4-WEEK PILOT STUDY INVESTIGATING THE EFFECTS OF HIGH INTENSITY INTERVAL TRAINING ON PULMONARY FUNCTION AND AEROBIC CAPACITY." In eLSE 2017. Carol I National Defence University Publishing House, 2017. http://dx.doi.org/10.12753/2066-026x-17-193.

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Suited for both elite athletes and untrained individuals, high intensity interval training (HIIT) is an increasingly popular cardio respiratory training technique that involves repeated bouts of high intensity exercise alternated with short periods of rest. This study was aimed at investigating the effects of a 4-week HIIT program on pulmonary function and aerobic capacity in recreationally trained individuals. Participants were 11 students (8 males and 3 females), aged between 21 and 25 years. They were randomly assigned to two groups: a Control group (5 subjects) and an Experimental group (6 subjects). Participants from the Experimental group trained 3 times per week, for a period of 4 weeks, performing HIIT with their own bodyweight. The exercises chosen for the training sessions were Burpees, squat jumps, push-ups, lunge jumps, mountain climbers, tuck jumps, planks, etc. Prior and post training protocol, all subjects effectuated pulmonary function tests with the Spirobank II® spirometer, manufactured by MIR (Medical International Research), Italy. The software used to process the acquired data was WinspiroPRO PC Software®. Anthropometric measurements and VO2max assessments were also carried out. VO2max was estimated using an online calculator after performing the Three Minute Step Test.After 4 weeks of bodyweight HIIT, the Experimental group showed improvements in VO2max, forced vital capacity (FVC) and forced expiratory volume in one second (FEV1/VC). HIIT has proved effective in enhancing physical performance. Further research is needed to identify the effects of this particular training method on the cardiorespiratory function of individuals with different levels of physical training.
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Milesi, Ilaria, Roberto Porta, Michele Vitacca, et al. "Overnight monitoring of lung mechanics and Tidal expiratory flow limitation (EFLT) by Forced Oscillation Technique (FOT) in Chronic Obstructive Pulmonary Disease (COPD) receiving non-invasive ventilation (NIV): the impact of sleep and posture." In ERS International Congress 2018 abstracts. European Respiratory Society, 2018. http://dx.doi.org/10.1183/13993003.congress-2018.pa2380.

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