scholarly journals The Effects of Ramadan Fasting on the Spirometric Data of Healthy Adult Males

2016 ◽  
Vol 11 (4) ◽  
pp. 1214-1223 ◽  
Author(s):  
Imed Latiri ◽  
Siwar Sandid ◽  
Mohamed Amine Fennani ◽  
Mohamed Hadrich ◽  
Tasnim Masmoudi ◽  
...  
Keyword(s):  
Repeated Measures ◽  
Vital Capacity ◽  
Healthy Adult ◽  
Adult Males ◽  
Ramadan Fasting ◽  
Repeated Measures Analysis ◽  
Forced Expiratory Flow ◽  
Expiratory Flow ◽  
R 114 ◽  
Healthy Males

The few studies carried out on the effects of Ramadan fasting (RF) on spirometric values present contradictory conclusions. This study aimed at assessing whether RF affects healthy adults’ spirometric values. Twenty-nine nonsmoking healthy males ( M ± standard error of mean [ SEM] of age: 27 ± 1 years) who fasted during Ramadan (June 29-July 28, 2014) volunteered to the study. Three periods (before-Ramadan [June 23-25], mid-Ramadan [July 14-16] and after-Ramadan [August 11-14]) were selected for spirometry measurements that were consistently performed 5.5 to 3.5 hours (between 15:00 and 17:00 hours) before fasting break. Assessment sessions comprised following: weight (kg), forced vital capacity (FVC), first second expiratory volume (FEV1), FEV1/FVC, peak expiratory flow (PEF), maximal mid expiratory flow (MMEF), and forced expiratory flow rate at the x% of FVC to be exhaled (FEF x%). Spirometric data were expressed in percentages of reference values. Results were analyzed by applying repeated measures analysis of variance. The M ± SEM of weight (before-R: 81.6 ± 2.8 kg, mid-R: 80.8 ± 2.9 kg, after-R: 81.2 ± 2.9 kg), FEV1 (before-R: 99 ± 2%, mid-R: 98 ± 2%, after-R: 98 ± 2%), FVC (before-R: 103 ± 2%, mid-R: 101 ± 2%, after-R: 101 ± 2%), PEF (before-R: 112 ± 3%, mid-R: 113 ± 2%, after-R: 114 ± 3%), MMEF (before-R: 83 ± 3%, mid-R: 83 ± 3%, after-R: 82 ± 3%), FEF25% (before-R: 90 ± 5%, mid-R: 89 ± 6%, after-R: 87 ± 6%), FEF50% (before-R: 94 ± 4%, mid-R: 91 ± 4%, after-R: 93 ± 3%), and FEF75% (before-R: 108 ± 3%, mid-R: 111 ± 2%, after-R:111 ± 3%) were not significantly influenced by RF. To conclude, RF did not bring about any significant changes in the spirometric values of nonsmoking healthy adult males.

scholarly journals Does Ramadan Fasting Affect Spirometric Data of Healthy Adolescents?

2019 ◽  
Vol 13 ◽  
pp. 117955651986228
Author(s):  
Selma Ben Fraj ◽  
Amira Miladi ◽  
Fatma Guezguez ◽  
Mohamed Ben Rejeb ◽  
Jihène Bouguila ◽  
...  
Keyword(s):  
Experimental Study ◽  
Vital Capacity ◽  
Forced Expiratory Volume ◽  
Healthy Male ◽  
Ramadan Fasting ◽  
Male Adolescents ◽  
Significant Difference ◽  
Quasi Experimental ◽  
Expiratory Flow ◽  
Healthy Males

Purpose: Several studies raised the effects of Ramadan fasting on healthy adults spirometric data, but none was performed in children. The aim of this study was to compare the spirometric data of a group of faster adolescents (n = 26) with an age-matched non-faster one (n = 10). Methods: This comparative quasi-experimental study, including 36 healthy males aged 12 to 15 years, was conducted during the summer 2015 (Ramadan: June 18 to July 16). Three sessions (Before-Ramadan [Before-R], Mid-Ramadan [Mid-R], After-Ramadan [After-R]) were selected for spirometry measurements. Spirometry was performed around 5.5 to 3.5 h before sunset and the spirometric data were expressed as percentages of local spirometric norms. Results: The two groups of fasters and non-fasters had similar ages and weights (13.35 ± 0.79 vs 12.96 ± 0.45 years, 46.8 ± 9.2 vs 41.7 ± 12.6 kg, respectively). There was no effect of Ramadan fasting on forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), FEV1/FVC, peak expiratory flow, and maximal mid-expiratory flow. For example, during the Before-R, Mid-R, and After-R sessions, there was no significant difference between the fasters and non-fasters mean FVC (101 ± 11 vs 99 ± 14, 101 ± 12 vs 102 ± 14, 103 ± 11 vs 104 ± 13, respectively) or FEV1 (101 ± 13 vs 96 ± 16, 98 ± 11 vs 97 ± 16, 101 ± 10 vs 98 ± 16, respectively). Conclusions: Ramadan fasting had no interaction effect with the spirometric data of Tunisian healthy male adolescents.

Impact of Ramadan Fasting on Healthy Adult Males: Immuno-Bio-Chemical Study

2017 ◽  
Vol 13 (2) ◽  
pp. 72-79 ◽  
Author(s):  
Pinar Khalid Khudhur ◽  
◽  
Saman Muhsin Abdulkareem ◽  
Rastee Hasan Saeed ◽  
Lajan Qasim Rahamn
Keyword(s):  
Healthy Adult ◽  
Chemical Study ◽  
Adult Males ◽  
Ramadan Fasting

Volume history and effect on airway reactivity in infants and adults

2002 ◽  
Vol 93 (3) ◽  
pp. 1069-1074 ◽  
Author(s):  
A. Weist ◽  
T. Williams ◽  
J. Kisling ◽  
C. Clem ◽  
R. S. Tepper
Keyword(s):  
Vital Capacity ◽  
Healthy Adults ◽  
Airway Hyperreactivity ◽  
Airway Reactivity ◽  
Maximal Expiratory Flow ◽  
Healthy Infants ◽  
Forced Expiratory Flow ◽  
Residual Capacity ◽  
Expiratory Flow ◽  
Volume History

Volume history is an important determinant of airway responsiveness. In healthy adults undergoing airway challenge, deep inspiration (DI) provides bronchodilating and bronchoprotective effects; however, the effectiveness of DI is limited in asthmatic adults. We hypothesized that, when assessed under similar conditions, healthy infants have heightened airway reactivity compared with healthy adults and that the effectiveness of DI is limited in infants. We compared the effect of DI on reactivity by using full (DI) vs. partial (no DI) forced-expiratory maneuvers on 2 days in supine, healthy nonasthmatic infants (21) and adults (10). Reactivity was assessed by methacholine doses that decreased forced expiratory flow after exhalation of 75% forced vital capacity during a full maneuver and maximal expiratory flow at functional residual capacity during a partial maneuver by 30% from baseline. Reactivity in adults increased when DI was absent, whereas infants' reactivity was unchanged. Infants were more reactive than adults in the presence of DI; however, adult and infant reactivity was similar in its absence. Our findings indicate that healthy infants are more reactive than adults and, like asthmatic adults, do not benefit from DI; this difference may be an important characteristic of airway hyperreactivity.

scholarly journals Hand grip strength determination for healthy males in Saudi Arabia: A study of the relationship with age, body mass index, hand length and forearm circumference using a hand-held dynamometer

2017 ◽  
Vol 45 (2) ◽  
pp. 540-548 ◽  
Author(s):  
Khalid A Alahmari ◽  
S. Paul Silvian ◽  
Ravi Shankar Reddy ◽  
Venkata Nagaraj Kakaraparthi ◽  
Irshad Ahmad ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Grip Strength ◽  
Healthy Adult ◽  
Pearson Correlation ◽  
Hand Grip Strength ◽  
Pearson Correlation Coefficient ◽  
Adult Males ◽  
Hand Grip ◽  
Hand Length ◽  
Healthy Males

Objectives To determine whether age, body mass index (BMI), hand length and forearm circumference were predictive of hand grip strength in healthy Saudi Arabian adult males. Methods This cross-sectional descriptive study recruited healthy adult male volunteers. Their anthropometric characteristics including age, BMI, hand length and forearm circumference were measured using routine techniques. Hand grip strength was assessed using a Jamar® Hydraulic Hand Dynamometer. The data were analysed using Pearson correlation coefficient ( r) as well as by a stepwise multiple linear regression analysis. Results The study included 116 healthy males who satisfied the inclusion criteria. A Pearson correlation coefficient matrix demonstrated that all the four measures, age, BMI, hand length and forearm circumference, were significantly correlated with hand grip strength. Age had an inverse correlation with hand grip strength. The anthropometric measures of hand length, age and forearm circumference accounted for 44.2% (R2 0.442) of the variation of the hand grip strength. Conclusion Hand length, age and forearm circumference significantly impacted on hand grip strength in Saudi Arabian healthy adult males.

scholarly journals Small Airway Dysfunction in Cough Variant Asthma: Prevalence, Clinical, and Pathophysiological Features

2022 ◽  
Vol 12 ◽  
Author(s):  
Fang Yi ◽  
Ziyu Jiang ◽  
Hu Li ◽  
Chunxing Guo ◽  
Hankun Lu ◽  
...  
Keyword(s):  
Airway Inflammation ◽  
Forced Vital Capacity ◽  
Vital Capacity ◽  
Small Airway ◽  
Asthma Prevalence ◽  
Cough Variant Asthma ◽  
Forced Expiratory Flow ◽  
Sputum Eosinophils ◽  
Expiratory Flow

Introduction: Small airway dysfunction (SAD) commonly presents in patients with classic asthma, which is associated with airway inflammation, disease severity, and asthma control. However, the prevalence of SAD, its relationship with cough severity and airway inflammation, and its development after antiasthmatic treatment in patients with cough variant asthma (CVA) need to be clarified. This study aimed to investigate the prevalence of SAD and its relationship with clinical and pathophysiological characteristics in patients with CVA and the change in small airway function after antiasthmatic treatment.Methods: We retrospectively analyzed 120 corticosteroid-naïve patients with CVA who had finished a standard questionnaire and relevant tests in a specialist cough clinic, such as cough visual analog scale (VAS), differential cells in induced sputum, fractional exhaled nitric oxide (FeNO) measurement, spirometry, and airway hyper-responsiveness. Information of 1-year follow-up was recorded in a part of patients who received complete cough relief after 2 months of treatment. SAD was defined as any two parameters of maximal mid-expiratory flow (MMEF)% pred, forced expiratory flow at 50% of forced vital capacity (FEF50%) pred, and forced expiratory flow at 75% of forced vital capacity (FEF75%) pred measuring <65%.Results: SAD occurred in 73 (60.8%) patients with CVA before treatment. The patients with SAD showed a significantly longer cough duration (24.0 vs. 6.0, p = 0.031), a higher proportion of women (78.1 vs. 59.6%, p = 0.029), older mean age (41.9 vs. 35.4, p = 0.005), and significantly lower forced expiratory volume in 1 s (FEV1%) pred, FEV1/FVC, MMEF% pred, FEF50% pred, FEF75% pred, PEF% pred, and PD20 (all p < 0.01) as compared with patients without SAD. There were no significant differences in cough VAS, sputum eosinophils count, FeNO, and TIgE level between patients with SAD and those without SAD. Among 105 patients who completed 2 months of antiasthmatic treatment and repeatedly experienced spirometry measurement, 57 (54.3%) patients still had SAD, despite a significant improvement in cough VAS, sputum eosinophils, FeNO, FEF50% pred, and PEF% pred (all p < 0.01). As compared with patients without SAD, patients with SAD showed no significant differences in the relapse rate (50.0 vs. 41.9%, p = 0.483) and wheeze development rate (10.4 vs. 0%, p = 0.063) during the follow-up.Conclusions: Small airway dysfunction occurred in over half of patients with CVA and persisted after short-term antiasthmatic treatment, which showed distinctive clinical and pathophysiological features.

Relationship of ventilatory capacity to hyperbaric exposure in divers

1984 ◽  
Vol 56 (6) ◽  
pp. 1655-1658 ◽  
Author(s):  
I. S. Davey ◽  
J. E. Cotes ◽  
J. W. Reed
Keyword(s):  
Flow Rate ◽  
Vital Capacity ◽  
Positive Association ◽  
Forced Expiratory Volume ◽  
Elastic Tissue ◽  
Significant Positive Association ◽  
Cross Sectional ◽  
Maximal Depth ◽  
Forced Expiratory Flow ◽  
Expiratory Flow

The results of divers' annual medical examinations were used to assess the effects of diving exposure independent of age, stature, and smoking on forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1). Cross-sectional analysis of records for 858 men showed a significant positive association between the maximal depth that subjects had experienced and FVC but not FEV1. There was a significant negative association for FEV1/FVC%, and this index was also positively correlated with years of diving exposure. Among a subsample of 81 men the forced expiratory flow rate at low lung volume was reduced relative to that of control subjects similarly assessed; the extent of the reduction from the reference value was significantly correlated with the diving exposure. Longitudinal analysis of results for 255 men over a minimum of 5 yr showed that the change in FVC per annum (positive or negative) was correlated with the change in maximal depth; there were no similar associations for FEV1 or FEV1/FVC%. Thus diving exposure affects the vital capacity and the forced expiratory flow rate at small lung volumes. The latter is evidence for narrowing of airways that might be secondary to diving-induced loss of lung elastic tissue; this hypothesis merits further investigation.

Comparison of a continuous indwelling glucometer with a point-of-care device in healthy adult horses

2020 ◽  
Vol 187 (3) ◽  
pp. e21-e21
Author(s):  
Alexandra Cunneen ◽  
Kelly A Wood ◽  
Kylie Mathison ◽  
Aaron M Herndon ◽  
Francois R Bertin
Keyword(s):  
Blood Glucose ◽  
Repeated Measures ◽  
Healthy Adult ◽  
Point Of Care ◽  
Weighted Kappa ◽  
Close Monitoring ◽  
Intravenous Catheter ◽  
Repeated Measures Analysis ◽  
Interstitial Glucose ◽  
The Mean

BackgroundBlood glucose is tightly regulated in horses; however, since hypoglycaemia and hyperglycaemia are associated with poor prognosis, close monitoring is warranted. This study aimed at evaluating a continuous indwelling glucometer (CIG) by comparing performance with a point-of-care glucometer (POC).MethodsTen horses were equipped with CIG and an intravenous catheter. Interstitial glucose concentrations were determined by CIG every 5 min at rest, during insulin-induced hypoglycaemia and dextrose-induced hyperglycaemia, and compared with blood glucose determined by POC. Glucose concentrations were compared by two-way repeated measures analysis of variance and weighted kappa with Bland-Altman plots to determine agreement between assays.ResultsHorses tolerated CIG well; however, five devices had to be replaced. There were no statistically significant differences between assays at rest or during hyperglycaemia; however, during hypoglycaemia, glucose concentrations determined by CIG were significantly higher (P=0.01). The mean bias (95% limits of agreement) between assays ranged from −0.03 (−2.46 to 2.52) mmol/l (hyperglycaemia) to 0.97 (−1.23 to 3.16) mmol/l (hypoglycaemia). Assay agreement was ‘good’ with observed agreements of 87.04% (κ=0.67).Conclusions of the studyCIG has acceptable accuracy in horses as compared with POC but overestimates glucose concentrations during hypoglycaemia and requires frequent replacement, limiting its clinical application.

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