scholarly journals Influence of sex on diaphragm thickness using a method for determining intima media thickness in healthy young adults

Author(s):  
Masayoshi Oguri ◽  
Tohru Okanishi ◽  
Takuya Ikeguchi ◽  
Kaoru Ogo ◽  
Sotaro Kanai ◽  
...  

Abstract Background: To clarify the differences in diaphragm thickness between male and female participants in healthy young adults using ultrasonography and to investigate the relationship between diaphragm thickness and respiratory pressure.Methods: Twenty-nine healthy individuals (16 females and 13 males) participated in the study. Diaphragm thickness was measured at total lung capacity (TLC) and at functional residual capacity (FRC) in each participant. We measured the diaphragm thickness using a method for mean intima media thickness. Moreover, change ratio of diaphragm thickness was calculated with the diaphragm thickness at TLC and FRC.Results: Mean diaphragm thicknesses at FRC in males were significantly narrower than those in females (p<0.001). The change ratio of diaphragm thickness was significantly augmented in males compared with that in females (p<0.001). There was a significant positive correlation between the change ratio of diaphragm thickness and respiratory muscle strength in males but not in females.Conclusions: The change ratio might be an alternative to evaluate respiratory muscle strength in young adult males. The diaphragm thickness values and the change ratio of diaphragm thickness in healthy young adults, evaluated by B-mode sonography, were varied based on sex.

2015 ◽  
Vol 39 (6) ◽  
pp. 880 ◽  
Author(s):  
Hee Joon Ro ◽  
Don-Kyu Kim ◽  
Sang Yoon Lee ◽  
Kyung Mook Seo ◽  
Si Hyun Kang ◽  
...  

2019 ◽  
Vol 20 (-1) ◽  
pp. 417-417
Author(s):  
Naciye Vardar Yagli ◽  
◽  
Kubra Kilic ◽  
Melda Saglam ◽  
Deniz Inal Ince ◽  
...  

2020 ◽  
Vol 9 (4) ◽  
pp. 952
Author(s):  
Nobuaki Hamazaki ◽  
Kentaro Kamiya ◽  
Shohei Yamamoto ◽  
Kohei Nozaki ◽  
Takafumi Ichikawa ◽  
...  

Respiratory muscle weakness, frequently observed in patients with heart failure (HF), is reported as a predictor for poor prognosis. Although increased respiratory muscle strength ameliorates exercise tolerance and quality of life in HF patients, the relationship between changes in respiratory muscle strength and patient prognosis remains unclear. A total of 456 patients with HF who continued a 5-month cardiac rehabilitation (CR) were studied. We measured maximal inspiratory pressure (PImax) at hospital discharge as the baseline and five months thereafter to assess the respiratory muscle strength. Changes in PImax during the 5-month observation period (⊿PImax) were examined. We investigated the composite multiple incidence of all-cause death or unplanned readmission after 5-month CR. The relationship between ⊿PImax and the incidence of clinical events was analyzed. Over a median follow-up of 1.8 years, 221 deaths or readmissions occurred, and their rate of incidence was 4.3/100 person-years. The higher ⊿PImax was significantly associated with lower incidence of clinical event. In multivariate Poisson regression model after adjustment for clinical confounding factors, ⊿PImax remained a significant and independent predictor for all-cause death/readmission (adjusted incident rate ratio for ⊿PImax increase of 10 cmH2O: 0.77, 95% confidence interval: 0.70–0.86). In conclusion, the changes in respiratory muscle strength independently predict the incidence of clinical events in patients with HF.


1990 ◽  
Vol 141 (6) ◽  
pp. 1506-1509 ◽  
Author(s):  
Larry Lands ◽  
Katherine J. Desmond ◽  
Debbie Demizio ◽  
Allan Pavilanis ◽  
Allan L. Coates

2000 ◽  
Vol 56 (4) ◽  
pp. 27-30
Author(s):  
T. Puckree ◽  
R. Moonasur ◽  
K. Govender

Bedrest produces decrements in the functioning of all physiological systems. Physiotherapists treat patients who are managed with Thomas splints following fractured femurs. The patients are generally compartmentally treated as orthopaedic patients. No attention is paid to the status of the respiratory system which can be the cause of morbidity in these patients. Since the ventilatory muscles play a major role in breathing and coughing the purpose of the present study was to determine the effect of a limited period of bedrest on the strength of the inspiratory and expiratory muscles.A sample of convenience consisting of 15 African male patients immobilized by Thomas’ Splint for fractured mid-shaft femurs participated in the study by voluntary consent. All patients had been confined to bed for at least 3 weeks. Maximal inspiratory pressures (PiMAX) and Maximal expiratory pressures (PeMAX) were recorded using a Boehringer Force Meter at functional residual capacity in the semi-recumbent position. The data were normalized and analyzed using the student t-test at the 0.05% level.The results showed a significant reduction in both PiMAX and PeMAX compared to age predicted normal values. The decrease in PeMAX was greater than that of PiMAX.We conclude that respiratory muscle strength decays with bedrest.


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