Autonomic changes in young smokers: acute effects of inspiratory exercise

Rodrigues, Fernando; Araújo, Amanda Aparecida de; Mostarda, Cristiano Teixeira; Ferreira, Janaina Barcellos; Silva, Michelle Cristina de Barros; Nascimento, Manoel Henrique Reis; Lira, Fábio Santos; Angelis, Kátia De; Irigoyen, Maria Cláudia; Rodrigues, Bruno

doi:10.1007/s10286-013-0202-1

Cited by 10 publications

(11 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These findings may be explained by the fact that IME performance is based on the control of respiratory frequency and alterations on pulmonary volume, mainly pulmonary expansion, which activates pulmonary vagal afferents, inhibiting sympathetic activity and, consequently, changing HF band of HRV (Goso et al, 2001; Malik et al, 1996). Moreover, IME may improve oxygen supply due to augmentation of tidal volume, reducing chemoreflex activity, which is associated with a decreased sympathetic nerve discharge (Rodrigues et al, 2013; Bernardi et al, 2001). …”

Section: Discussionmentioning

confidence: 99%

“…The RR interval variability was evaluated in the time and frequency domains. Spectral power for low (LF: 0.03–0.15 Hz) and high (HF: 0.15–0.4 Hz) frequency bands was calculated by means of power spectrum density integration within each frequency bandwidth, using a customized routine (MATLAB 6.0, Natick, MA, USA) (Rodrigues et al, 2013). …”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, studies have demonstrated beneficial effects of inspiratory muscle exercise (IME) on cardiac autonomic function, indicated by reduced sympathetic modulation and increased vagal modulation in young smokers (Rodrigues et al, 2013), as well as hypertensive (Ferreira et al, 2013) and heart failure patients (Mello et al, 2012). …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of inspiratory muscle exercise in the pulmonary function, autonomic modulation, and hemodynamic variables in older women with metabolic syndrome

et al. 2017

Self Cite

View full text Add to dashboard Cite

The aim of the present study was to investigate the effects of inspiratory muscle exercise (IME) on metabolic and hemodynamic parameters, cardiac autonomic modulation and respiratory function of older women with metabolic syndrome (MS). For this, sixteen older women with MS and 12 aged-matched controls participated of the present study. Two days before and 2 days after the main experiment, fasting blood samples (i.e., total cholesterol, triglycerides and blood glucose), cardiac autonomic modulation (i.e., heart rate variability), and respiratory muscle function were obtained and evaluated. The sessions of physical exercise was based on a IME, which was performed during 7 days. Each session of IME was performed during 20 min, at 30% of maximal static inspiratory pressure. In the results, MS group presented higher levels of triglycerides, blood glucose, and systolic blood pressure when compared to control group. IME was not able to change these variables. However, although MS group showed impaired respiratory muscle strength and function, as well as cardiac autonomic modulation, IME was able to improve these parameters. Thus, the data showed that seven days of IME are capable to improve respiratory function and cardiac autonomic modulation of older women with MS. These results indicate that IME can be a profitable therapy to counteracting the clinical markers of MS, once repeated sessions of acute IME can cause chronical alterations on respiratory function and cardiac autonomic modulation.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Effects of inspiratory muscle exercise in the pulmonary function, autonomic modulation, and hemodynamic variables in older women with metabolic syndrome

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…Moreover, smoking is associated with lower physical fitness, which in turn can lead to higher LBP scores (Heneweer et al, 2012;Mesquita et al, 2015). Finally, smoking enhances expiratory muscle strength, slightly increases IM strength and reduces IM endurance (Chen, 1988), and activates the sympathetic nervous system (Rodrigues et al, 2013). These autonomic changes may influence the breathing pattern, diaphragm function and may also explain the higher incidence of LBP in smokers.…”

Section: Discussionmentioning

confidence: 99%

The presence of respiratory disorders in individuals with low back pain: A systematic review

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Inspiratory muscle training may improve oxygen supply by augmenting tidal volume, leading to a reduction in chemoreflex activity and, consequently, decreased sympathetic nerve discharge [4,48]. According to previous research in healthy adults, inspiratory loads lower than 60% of MIP do not engender diaphragm fatigue as the metaboreflex of the inspiratory muscles is not activated and therefore sympathetic tone is not increased [8].…”

Section: Discussionmentioning

confidence: 97%

Effects of Inspiratory Muscle Training on Heart Rate Variability in Children with Cystic Fibrosis: A Pilot Study

McCreery

Mackintosh

McNarry

2020

J. of SCI. IN SPORT AND EXERCISE

View full text Add to dashboard Cite

Purpose Cystic Fibrosis (CF) is a multisystem disease associated with symptoms such as dyspnoea, tachycardia and tachypnea that may be related to changes in autonomic function and sensitive to improvement following inspiratory muscle training (IMT). The aim of the present study was to investigate the effect of IMT on heart rate variability (HRV) and respiratory function in children. Methods Five CF and five matched controls (40% boys) performed a 4-weeks IMT programme, involving 30 breaths, twice a day. Weeks 1–2 of training were set at 40% of a participant’s maximal strength index (S.Index), with week’s 3–4 set at 50%. Participants wore an ActiHeart for three consecutive days at baseline and post-intervention and indices of HRV were derived. Standard measures of lung function were obtained along with health-related quality of life (HRQoL) using the CF-specific questionnaire (CFQ-R). Results IMT elicited clinically meaningful increases in respiratory muscle strength and respiratory symptom domain scores, but no improvements in respiratory volume, irrespective of group. Similarly, no significant improvements were found in HRQoL despite 62.5% of the population increased their HRQoL score. Post-intervention, CF participants showed a clinically meaningful decrease in the very low frequency (VLF) domain. Conclusion These results may indicate clinically meaningful changes in HRV and inspiratory muscle strength following a 4-week IMT intervention, although a more powerful study is required to draw further conclusions. Indeed, the trends for improved HRQoL support the need for such studies to ascertain the potential therapeutic role of IMT in those with CF.

show abstract

Autonomic changes in young smokers: acute effects of inspiratory exercise

Cited by 10 publications

References 25 publications

Effects of inspiratory muscle exercise in the pulmonary function, autonomic modulation, and hemodynamic variables in older women with metabolic syndrome

Effects of inspiratory muscle exercise in the pulmonary function, autonomic modulation, and hemodynamic variables in older women with metabolic syndrome

The presence of respiratory disorders in individuals with low back pain: A systematic review

Effects of Inspiratory Muscle Training on Heart Rate Variability in Children with Cystic Fibrosis: A Pilot Study

Contact Info

Product

Resources

About