How Might An Athletes Vital Capacity Compared To A Non-athlete
ScientificWorldJournal. 2013; 2013: 526138.
A Higher Tidal Book May Be Used for Athletes according to Measured FVC
Pavlos Myrianthefs
Faculty of Nursing, University of Athens, ICU at Agioi Anargyroi General Hospital, Nea Kifisia, 14561 Athens, Hellenic republic
George Baltopoulos
Faculty of Nursing, University of Athens, ICU at Agioi Anargyroi General Hospital, Nea Kifisia, 14561 Athens, Greece
Received 2013 Aug 20; Accustomed 2013 Sep 12.
Abstract
We investigated whether professional athletes may require higher tidal book (T v ) during mechanical ventilation hypothesizing that they have significantly higher "normal" lung volumes compared to what was predicted and to nonathletes. Measured and predicted spirometric values were recorded in both athletes and nonathletes using a Spirovit SP-1 spirometer (Schiller, Switzerland). Normal T five (6 mL/kg of predicted torso weight) was calculated as a percentage of measured and predicted forced vital capacity (FVC) and the departure (δ) was used to summate the boosted T 5 required using the equation: New T 5 (T v Due north) = T 5 + (T v × δ). Professional athletes had significantly college FVC compared to what was predicted (past nine% in females and 10% in males) and to nonathletes. They may also require a T five of 6.6 mL/kg for males and 6.v mL/kg for females during mechanical ventilation. Nonathletes may crave a T 5 of 5.8 ± 0.1 mL/kg and 6.three ± 0.1 mL/kg for males and females, respectively. Our findings show that athletes may crave additional T v of x% (0.6/6 mL/kg) for males and 8.3% (0.5/6 mL/kg) for females during general anesthesia and disquisitional care which needs to be farther investigated and tested.
i. Introduction: Background
Lung protective ventilation during the class of acute respiratory distress syndrome (ARDS) uses a tidal volume (T v ) of 6 mL/kg of predicted body weight [i]. This T v pick was associated with significant outcomes improvement in patients with ARDS [1].
This T v was selected considering normal lung volumes are predicted on the basis of sexual activity and tiptop [2, 3]. Also, this T five corresponds to a normal seated man at rest which is 6 to 7 mL per kilogram [4]. Thus, information technology was attempted an association between T v selection during mechanical ventilation and normal (predicted) lung volumes in healthy individuals at rest.
However, normal lung volumes may differ significantly between different ethnic populations and subpopulations who may have higher pulmonary part tests (PFTs) volumes including forced vital capacity (FVC) and forced expiratory volume in one second (FEVane) than average population independently from predicted body weight. Likewise, it is well known that PFTs are mainly based on sex, historic period, pinnacle, and weight. Finally, professional athletes have higher FVC and FEVone than what was predicted for the same body weight and thus a higher T v could exist required to accomplish "normal" T five .
None of the studies performed until now attempted to see the event of different PFTs values and especially the FVC in this population on tidal book choice. To answer this question nosotros investigated the possible effect of measured versus predicted FVC values on tidal volume option in professional athletes.
2. Subjects and Methods
For the study purposes an informed consent was taken by all participants for spirometry and the study protocol was approved by Hospital Informational Lath and local Ethics Committee Board.
2.i. Study Subjects: Participants
An urban population of Greece living in Athens (lxx thou above sea level) aged twenty–65-year old were invited to participate in the report. These included students of Athens Academy, employees of our hospital and their families, and individuals visiting our outpatient clinic for checkup. Also, athletes were included from various sporting activities and spirometry was performed while visiting their facilities later communication with their trainer.
We explained the purpose of the study and the procedure of spirometry and and so a clinical exam was performed based on a combination of the ECCS (European Community for Steel and Coal) standardized questionnaire on respiratory symptoms past the interviewing physician to place eligible participants [5].
Exclusion criteria were unacceptable spirometry, previous or electric current smoking habit, history of breast injuries; chest, abdominal, oral, or facial hurting, and presence of denture; exposure to substances known to cause lung injury; known respiratory disease (asthma, pulmonary tuberculosis, emphysema, or chronic bronchitis); respiratory symptoms during the last 12 months; hypertension; history of myocardial infarction; diabetes; dementia or confusional country; and the apply of whatever drug and specially diuretics, cardiac glycosides, or b-adrenergic blocking agents [6].
Height was measured at the nearest 0.5 cm without shoes, in a standing position with the anxiety together, with the patient erect and looking straight ahead (Frankfort position). Subjects were weighted without shoes wearing indoor article of clothing. Age was also recorded according to birthday to the nearest 0.5 year. BMI and BSA were derived from height and weight.
2.2. Spirometry
Spirometry was performed post-obit American Thoracic Society/European Respiratory Society (ATS/ERS) Task Force recommendations [5, vii, 8]. All tests were performed by two physicians well educated and experienced in spirometry. Spirometry and flow/volume loops were performed using a Schiller Spirovit SP-one spirometer (Schiller, Switzerland). This spirometer is ATS/ERS canonical, fulfilling the criteria for minimal recommendations for spirometry systems and calibrated regularly [7]. Spirometry was performed in sitting position in armed chairs wearing a nose clip. Subjects were relaxed and did not fume, exercise, consume alcohol, wear heavy habiliment, or eat large repast before testing. The procedure was performed at the same room between 8.00 and x.00 am and barometric pressure, temperature, and relative humidity were registered every forenoon. Hygiene and infection command measures were undertaken every bit recommended [7].
At least three adequate trials were required, defined as a expert start of test (extrapolated book of <5% of FVC or 0.15 50, whichever was larger), at least half-dozen southward of expiration and a plateau in the volume/time curve (change in volume <30 mL for ≥2 s). Equally recommended past the ATS, information that did not come across reproducibility criteria were not excluded, but subjects were asked to perform upward to a maximum of 8 manoeuvres in an attempt to obtain reproducible results. The highest FEVone and FVC from tests of acceptable quality were used for analysis [6].
ii.3. Calculations
We had four groups of data that are males and females for athletes and nonathletes, respectively. Predicted torso weight was calculated according to measured height for all participants using standard equations. For males it was calculated as equal to 50 + 0.91 (centimeters of height, 152.4), and that for females was calculated equally equal to 45.5 + 0.91 (centimeters of meridian, 152.four) [1, nine]. Predicted T 5 (T 5 Pr = 6 mL/kg) was calculated according to predicted body weight [ane]. And then, predicted T five was then calculated as percentage of measured (Ms) and predicted (Pr) FVC values and their difference (δ, %) were extracted for each individual separately. This departure was used to calculate the new T v (T v N) using the equation, New T five (T v N) = T v + (T v × δ). New T five (T 5 N) was divided to predicted body weight to summate the corresponding T 5 per kilogram separately for each individual.
2.4. Statistics
Values are expressed as mean ± SEM. A paired sample t-test was used for comparing of numerical data. A P value of <0.05 was used to define statistical significance.
three. Results
Of the 550 normal individuals (nonathletes) approached 235 met the inclusion criteria and were divided according to sex which resulted in 2 groups of 113 males and 122 females. Also, of the 315 professional athletes 251 met the inclusion criteria and were divided co-ordinate to sex which resulted in two groups of 156 males and 95 females. Summary of the written report population is shown in Table 1. Mean elapsing of sporting was 11.8 ± 6.four and xi.6 ± 6.9 years for males and females, respectively. Male athletes were swimmers (northward = 41), basketball players (n = 28), football players (n = 28), handball players (n = 13), athletics (n = 27), and gymnastic (due north = nineteen). Female person athletes were swimmers (n = 27), basketball players (n = 27), handball players (n = 25), athletics (n = 12), and gymnastic (north = four).
Tabular array 1
Summary statistics for males and females.
| Variable | Nonathletes | Athletes |
|---|---|---|
| Males | n = 113 | n = 156 |
| | ||
| Age (years) | 38.iii ± 12.nine | 26.1 ± 0.8 |
| Weight (kg) | 86.1 ± 13.2 | 79.four ± i.ane |
| Peak (cm) | 177.7 ± half dozen.half-dozen | 180.vii ± 0.seven |
| | ||
| Females | n = 122 | n = 95 |
| | ||
| Historic period (years) | 41.7 ± thirteen.9 | 24.ane ± 0.viii |
| Weight (kg) | 66.5 ± 10.5 | 64.1 ± 1.0 |
| Height (cm) | 161.iv ± seven.ii | 171.7 ± 0.8 |
Measured (Ms) and predicted (Pr) FEV1 and FVC were recorded and shown in Table 2. For nonathletes males measured FEVone and FVC were significantly lower compared to what was predicted while for females measured FVC was significantly lower compared to what was predicted. For male person and female athletes measured values were significantly higher from predicted values obtained from the ECSC prediction equation [x]. As well, in athletes measured values were approximately 9-ten% higher than predicted PFTs values. The ratio (%) of measured/predicted values in athletes and nonathletes for FVC is shown in Table 3.
Table two
Measured and predicted spirometric values (mL).
| Males | Measured | Predicted | δ |
|---|---|---|---|
| Athletes, north = 156 | |||
| FVC | 5808 ± 81.9* | 5252 ± 49.five* | +555.9 ± 61.7 |
| FEV1 | 4831 ± 58.nine* | 4396 ± forty.9* | +434.8 ± 45.eight |
| FEVi/FVC | 83.69 ± 0.48* | 82.07 ± 0.12* | +1.six ± 0.47 |
| Nonathletes, northward = 113 | |||
| FVC | 4715 ± seventy.0** | 4856 ± 53.9** | −141.ii ± 55.3 |
| FEVone | 3876 ± 58.4** | 4006 ± 48.5** | −129.9 ± 45.2 |
| FEV1/FVC | 82.8 ± 0.6* | fourscore.6 ± 0.2* | +2.two ± 0.six |
| | |||
| Females | Measured | Predicted | δ |
| | |||
| Athletes, northward = 95 | |||
| FVC | 4364 ± 70.8* | 4008 ± 46.three* | +355.9 ± 55.0 |
| FEV1 | 3757 ± 57.3* | 3484 ± 40.two* | +273.4 ± 45.viii |
| FEV1/FVC | 86.34 ± 0.52* | 83.73 ± 0.09* | +ii.six ± 0.l |
| Nonathletes, n = 122 | |||
| FVC | 3294 ± 62.ane* | 3157 ± 51.8* | +137.0 ± 35.vi |
| FEV1 | 2779 ± 54.eight | 2717 ± 48.ii | +61.9 ± 32.9 |
| FEV1/FVC | 84.3 ± 0.6* | 81.6 ± 0.2* | +2.7 ± 0.vi |
Table iii
Ratio (%) of measured/predicted values in athletes and nonathletes for FVC.
| FVCm/FVCpr | |
|---|---|
| Male person athletes | 110.6 ± 1.1% |
| Male nonathletes | 97.4 ± 1.i% |
| Female athletes | 109.0 ± 1.4% |
| Female nonathletes | 104.five ± ane.i% |
The predicted tidal volume according to the ARDS Network (T v Pr, 6 mL/kg), the percentage to measured (Ms) and predicted (Pr) FVC, their difference δ, and the new T v (T v N) are shown in Table 4 separately for athletes, nonathletes, males, and females.
Table 4
Calculations to extract new T 5 (T v N) according to measured (Ms) and predicted (Pr) PFTs.
| Males | Predicted (mL) | % FVCms | % FVCpr | δ (%) | T five N (mL) | T 5 N (mL/Kg) |
|---|---|---|---|---|---|---|
| Athletes, n = 156 | ||||||
| T v | 454.4 ± three.97 | 7.9 ± 0.86* | 8.6 ± 0.03* | 0.7 ± 0.08 | 502.7 ± 6.9 | 6.vi ± 0.07 |
| | ||||||
| Nonathletes, north = 113 | ||||||
| T 5 | 438.three ± 3.4 | ix.5 ± 0.12* | 9.1 ± 0.06* | −0.3 ± 0.01 | 426.0 ± five.five | 5.8 ± 0.07 |
| | ||||||
| Females | Predicted (mL) | % FVCm | % FVCpr | δ (%) | T v N (mL) | T v North (mL/Kg) |
| | ||||||
| Athletes, northward = 95 | ||||||
| T five | 375.4 ± 4.6 | 8.7 ± 0.12* | 9.4 ± 0.05* | 0.6 ± 0.01 | 408.nine ± 7.1 | 6.5 ± 0.08 |
| | ||||||
| Nonathletes, due north = 122 | ||||||
| T v | 319.3 ± 3.6 | 9.9 ± 0.15* | 10.iii ± 0.09* | 0.iii ± 0.01 | 333.one ± 4.9 | half-dozen.3 ± 0.07 |
Extracted T v Northward according to FVCm was half-dozen.half-dozen ± 0.1 mL/kg (95% CI half dozen,5–6,eight) for male person athletes. For female athletes extracted T v N was vi.5 ± 0.one mL/kg (95% CI 6,4–6,7). Extracted T v N was 5.8 ± 0.1 mL/kg (95% CI v,seven–6,0) for male nonathletes. For female nonathletes extracted T v N was 6.3 ± 0.1 mL/kg (95% CI 6,one–6,4). See also Table 4 for details. Our calculated new tidal volumes (T v Due north) were significantly higher compared to ARDS Network suggested tidal volumes (paired sample t-test, P < 0.0001) except for male nonathletes which was significantly lower (P ≤ 0.0156) Effigy one.
Comparison of ARDSnet tidal book (vi mL/kg) to those according to athletic condition and sex. *, **, and *** announce statistically pregnant differences.
We observed that the additional tidal volume required for male athletes was 0.6 mL/kg which is ten% (0.6 mL/vi mL) of the suggested protective ventilation according to ARDS network. This x% is in accord with the x.6% and ix.9% college FVC and FEV1, respectively constitute in measured values compared to predicted values as shown in Table 2. Also, the additional tidal volume required for female athletes was 0.5 mL/kg which is 8.iii% (0.five mL/half-dozen mL) of the suggested protective ventilation according to ARDS Network. This viii.3% is in accord with the 8.9% and vii.8% higher FVC and FEVone, respectively, found in measured values compared to predicted values as shown in Table 2.
4. Discussion
In this study we found that athletes take significantly higher spirometric values compared to what was predicted and nonathletes. We also found that tidal book during mechanical ventilation in athletes should exist six.six mL/kg for males and 6.5 mL/kg for females compared to 6 mL/kg every bit suggested by the ARDS Network [i].
Early ventilation strategies in ARDS involved volume controlled ventilation with T v of 10–15 mL/kg to achieve "normal" arterial claret gases [11]. However, ventilation itself can cause lung injury and subsequently a landmark written report by the ARDS Network a lung protective strategy using half dozen mL/kg of ideal body weight was established leading to a 9% absolute mortality reduction along with reduced pulmonary and circulating inflammatory cytokines [1]. This study was confirmed by subsequent study in which patients that were ventilated with higher T v and lower PEEP had increased ICU and hospital bloodshed [12].
A contempo trial in patients with respiratory failure without ARDS also demonstrated low T five ventilation to be protective, preventing ARDS, and associated with a reduction in the release of inflammatory cytokines. This study was stopped early due to an increased incidence of lung injury in patients ventilated with higher T v [13].
Studies addressing several concerns regarding low T five have shown that low T v ventilation is a safe strategy and should exist adopted in the management of patients with ARDS [xiv–sixteen]. These studies demonstrate the importance of using lower T v to ventilate the injured lung every bit opposed to aiming to normalize claret gases variables.
Low T 5 (lung protective) strategy is a physiological arroyo using normal tidal volume which is at rest 6-7 mL/kg [four]. The ARDS network used this normal T v (6 mL/kg) in relation to predicted torso weight because normal lung volumes are predicted on the basis of sex and height in an attempt to synchronize T v pick during MV in ARDS population and normal lung volumes [1].
In this written report nosotros compared predicted T 5 according to ARDS Network calculations to measured and predicted FVC which are normal lung volumes. Our hypothesis was that since normal T v is proportional to normal lung volumes, the comparison of normal T 5 of 6 mL/kg every bit per centum to actual (measured) FVC could indicate the right T v appropriate for MV. Co-ordinate to our hypothesis normal T v is a proportion of FVC and thus may be useful in the conclusion of "normal" T v applied for MV instead of using predicted body weight.
Nosotros found besides that measured spirometric volumes differ significantly from what was predicted according to athletic status. According to our hypothesis athletes having significantly higher FVC than what was predicted may require college T v than vi mL/kg. We plant that T 5 may differ according to sex and athletics status.
We found that athletes may require an 8–10% increase in T five that is 6.6 mL/kg for males and half-dozen.5 mL/kg for females. This divergence may result in a T v of 462 mL instead of 420 mL for a 70 kg male person athlete (42 mL higher). Also, for the aforementioned torso weight of seventy Kg female person athlete T 5 would be 455 mL instead of 420 mL (35 mL higher).
On the other hand we found that according to measured FVC values nonathlete males may crave slightly reduced T v of 5.eight mL/kg and females of 6.3 mL/kg. This difference may event in a T v of 406 mL instead of 420 mL for a 70 Kg male person nonathlete (14 mL lower) and 441 mL instead of 420 mL for a female person athlete (21 mL college). Thus, it can exist argued that for nonathletes the approach of half dozen mL/kg is appropriate with a range of 5.viii–half-dozen.iii mL/kg.
Comparing males there is a pregnant difference between athletes and nonathletes of 0.eight mL/kg (half dozen.six–v.viii). That is for a 70 kg male athlete a T five of 462 mL is required and for a male nonathlete a T v of 406 mL is required (δ = 56 mL). For females this divergence is lower being 0.2 mL/kg (half-dozen.5–vi.iii) and of a female athlete the T v would exist 455 mL while for a female person nonathlete the T 5 would be 441 mL (δ = 14 mL).
In accordance with our study information technology was found larger lung capacity (FVC and FEV1) independent of age and height in never smokers with higher levels of concrete exercise [17]. At that place too is evidence that even balmy but besides professional person exercise is related to higher spirometric values and lower FEVi loss over time [xviii–23]. These studies are in accordance with our findings that athletes accept higher spirometric values to predicted [24].
It should be mentioned that currently in Europe, the reference equations for spirometry published by ECSC statement are used for people aged xviii–70 yrs, with a peak range of 155–195 cm in males and 145–180 cm in females [10]. The contempo ATS/ERS Task Strength committee does not recommend whatever specific gear up of equations for use in Europe only suggests the need for a new Europe-wide study to derive updated reference equations for lung office [viii]. Also, suggests that the subjects being tested should exist asked to identify their own race/ethnic group and even nation and recognises and encourages the continuing involvement of worldwide researchers in deriving and using race/ethnic/nation-specific reference equations [8]. Finally, there are unexplained differences in lung function betwixt ethnically like nonsmoking symptom-costless populations and eye variation between several European countries was found more likely to be due to truthful population differences [25]. This is in accord with previous observations by us [26]. These problems have been recently addressed past the European Respiratory Club Global Lung Function Initiative research examining over 97,759 records of salubrious nonsmokers aged 2.five–95 yrs [27].
Some limitations of our report should be underscored. Firstly, this is a hypothetical written report based on our data that normal spirometric lung volumes differ among athletes and nonathletes and that athletes may require higher T v . There are no supporting data in the literature suggesting that the increase in T v is related to the increment in FVC. Also, this was not a controlled clinical trial but an observational study. Most of our healthy adult participants were from mid to upper socioeconomic strata, so generalizing to other groups (peculiarly to clinical populations such as patients with respiratory disease) is not advised. Also, we examined different sports and ages with different exercise elapsing and intensity. Finally T v was measured during spirometry and thus calculated tidal volumes were not compared to what was calculated.
5. Conclusions
Professional person athletes take significantly higher spirometric lung volumes compared to currently predicted values and those of nonathletes. According to measured FVC values of our population and our hypothesis, advisable T v may differ between athletes and nonathletes and could exist ten% college compared to ARDSnet recommendation. Additional T v for professional athletes under mechanical ventilation and ARDS may be 0.half-dozen mL/kg for males and 0.5 mL/kg for females. The tidal volume increase may be proportional to the percentage of FVC increase compared to predicted values. For nonathletes the ARDSnet recommendation maybe appropriate. Our findings demand to be further investigated and tested.
Ethical Approval
The enquiry protocol was evaluated and approved by the local Institutional Review Lath.
Disharmonize of Interests
The author declares that he has no conflict of interests.
Authors' Contributions
The thought for the report belongs to P. Myrianthefs and Thousand. Baltopoulos. The report was implemented and data was collected by P. Myrianthefs. The analysis of the data was performed by P. Myrianthefs. P. Myrianthefs wrote the first draft of the paper and then G. Baltopoulos read and approved the final version of the newspaper.
Acknowledgments
The study was partially funded past OPAP (Greek Organization of Football game Prognostics). The report sponsors had no involvement in the study design, in the collection, assay, and interpretation of the data; in the writing of the newspaper; and in the determination to submit the paper for publication.
Abbreviations
| PFTs: | Pulmonary Function Tests |
| FVC: | Forced Vital Capacity |
| FEV1: | Forced Expiratory Book in 1 2d |
| ALI/ARDS: | Acute Lung Injury/Acute Respiratory Distress Syndrome |
| ATS/ERS: | American Thoracic Order/European Respiratory Society |
| BMI: | Torso Mass Index |
| BSA: | Torso Surface Surface area |
| ECCS: | European Community for Steel and Coal. |
References
one. The Astute Respiratory Distress Syndrome Network. Ventilation with lower tidal volumes as compared with traditional tidal volumes for astute lung injury and the acute respiratory distress syndrome. The New England Journal of Medicine. 2000;342(18):1301–1308. [PubMed] [Google Scholar]
2. Crapo RO, Morris AH, Gardner RM. Reference spirometric values using techniques and equipment that run across ATS recommendations. American Review of Respiratory Affliction. 1981;123(6):659–664. [PubMed] [Google Scholar]
iii. Crapo RO, Morris AH, Clayton PD, Nixon CR. Lung volumes in healthy nonsmoking adults. Clinical Respiratory Physiology. 1982;18(3):419–425. [PubMed] [Google Scholar]
four. Tenney SM, Remmers JE. Comparative quantitative morphology of the mammalian lung: Diffusing area. Nature. 1963;197(4862):54–56. [PubMed] [Google Scholar]
5. Miller MR, Crapo R, Hankinson J, et al. General considerations for lung function testing. European Respiratory Journal. 2005;26(one):153–161. [PubMed] [Google Scholar]
6. American Thoracic Lodge. Standardization of spirometry. American Periodical of Respiratory and Disquisitional Care Medicine. 1995;152:1107–1136. [PubMed] [Google Scholar]
7. Miller MR, Hankinson J, Brusasco V, et al. ATS/ERS task forcefulness: standardization of spirometry. European Respiratory Journal. 2005;26:319–338. [PubMed] [Google Scholar]
viii. Pellegrino R, Viegi Thousand, Brusasco 5, et al. Interpretative strategies for lung function tests. European Respiratory Journal. 2005;26(v):948–968. [PubMed] [Google Scholar]
9. Knoben JE, Anderson PO, editors. Handbook of Clinical Drug Data. 7th edition. Hamilton, Ill, USA: Drug Intelligence; 1993. [Google Scholar]
10. Quanjer PH, Tammeling GJ, Cotes JE, Pedersen OF, Peslin R, Yernault JC. Lung volumes and forced ventilatory flows. Study Working Political party Standardization of Lung Function Tests, European Customs for Steel and Coal. Official Statement of the European Respiratory Gild. The European Respiratory Journal. 1993;16:S5–S40. [PubMed] [Google Scholar]
eleven. Dushianthan A, Grocott MPW, Postle Advert, Cusack R. Acute respiratory distress syndrome and acute lung injury. Postgraduate Medical Journal. 2011;87(1031):612–622. [PubMed] [Google Scholar]
12. Villar J, Kacmarek RM, Pérez-Méndez Fifty, Aguirre-Jaime A. A high positive end-expiratory pressure, low tidal volume ventilatory strategy improves event in persistent acute respiratory distress syndrome: a randomized, controlled trial. Critical Care Medicine. 2006;34(5):1311–1318. [PubMed] [Google Scholar]
13. Determann RM, Royakkers A, Wolthuis EK, et al. Ventilation with lower tidal volumes as compared with conventional tidal volumes for patients without acute lung injury: a preventive randomized controlled trial. Critical Care. 2010;xiv(1, commodity R1) [PMC free article] [PubMed] [Google Scholar]
14. Rubenfeld GD, Cooper C, Carter Grand, Thompson BT, Hudson LD. Barriers to providing lung-protective ventilation to patients with astute lung injury. Critical Care Medicine. 2004;32(6):1289–1293. [PubMed] [Google Scholar]
15. Cheng IW, Eisner MD, Thompson BT, Ware LB, Matthay MA. Acute effects of tidal volume strategy on hemodynamics, fluid balance, and sedation in acute lung injury. Critical Intendance Medicine. 2005;33(1):63–70. [PubMed] [Google Scholar]
16. Kahn JM, Andersson Fifty, Karir V, Polissar NL, Neff MJ, Rubenfeld GD. Low tidal book ventilation does not increase sedation use in patients with acute lung injury. Disquisitional Care Medicine. 2005;33(4):766–771. [PubMed] [Google Scholar]
17. Holmen TL, Barrett-Connor E, Clausen J, Holmen J, Bjermer L. Concrete exercise, sports, and lung role in smoking versus nonsmoking adolescents. European Respiratory Periodical. 2002;xix(i):8–fifteen. [PubMed] [Google Scholar]
18. Cheng YJ, Macera CA, Addy CL, Sy FS, Wieland D, Blair SN. Effects of physical activity on exercise tests and respiratory function. British Journal of Sports Medicine. 2003;37(6):521–528. [PMC costless article] [PubMed] [Google Scholar]
19. Doherty M. Comparing of lung volume in Greek swimmers, land based athletes, and sedentary controls using allometric scaling. British Journal of Sports Medicine. 1997;31(four):337–341. [PMC free article] [PubMed] [Google Scholar]
20. Mehrotra PK, Varma North, Tiwari Due south, Kumar P. Pulmonary functions in Indian sportsmen playing unlike sports. Indian Periodical of Physiology and Pharmacology. 1998;42(three):412–416. [PubMed] [Google Scholar]
21. Jakes RW, Solar day NE, Patel B, et al. Physical inactivity is associated with lower forced expiratory volume in 1 second: European prospective investigation into cancer-norfolk prospective population study. American Journal of Epidemiology. 2002;156(ii):139–147. [PubMed] [Google Scholar]
22. Galanis North, Farmakiotis D, Kouraki M, Fachadidou A. Forced expiratory volume in one second and pinnacle expiratory flow charge per unit values in non-professional male lawn tennis players. Journal of Sports Medicine and Physical Fitness. 2006;46(1):128–131. [PubMed] [Google Scholar]
23. MacAuley D, McCrum Due east, Evans A, Stott G, Boreham C, Trinick T. Physical activity, concrete fitness and respiratory office—exercise and respiratory function. Irish Journal of Medical Science. 1999;168(ii):119–123. [PubMed] [Google Scholar]
24. Myrianthefs P, Gavala A, Skordilis E, et al. Spirometric reference values from a sample of an urban Greek population. Respiratory Therapy. 2010;(v):36–41. [Google Scholar]
25. Chinn Due south, Jarvis D, Svanes C, Burney P. Sources of variation in forced expiratory volume in one second and forced vital capacity. European Respiratory Journal. 2006;27(iv):767–773. [PubMed] [Google Scholar]
26. Baltopoulos G, Fildisis G, Karatzas S, Georgiakodis F, Myrianthefs P. Reference values and prediction equations for FVC and FEV1 in the Greek elderly. Lung. 2000;178(4):201–212. [PubMed] [Google Scholar]
27. Quanjer PH, Stanojevic S, Cole TJ. The ERS Global Lung Function Initiative Multi-indigenous reference values for spirometry for the iii–95-yr age range: the global lung function 2012 equations. European Respiratory Periodical. 2012;40(half dozen):1324–1343. [PMC gratuitous article] [PubMed] [Google Scholar]
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