Ventilatory muscle strength, diaphragm thickness and pulmonary function in world-class powerlifters

Brown, Peter I.; Venables, Heather; Liu, Hymsuen; de-Witt, Julie T.; Brown, Michelle; Faghy, Mark A

doi:10.1007/s00421-013-2726-4

Cited by 30 publications

(34 citation statements)

References 25 publications

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“…Higher FEV 1 in endurance athletes could be explained by the lowest BF% value, pointing out obesity as a limiting factor for FEV 1 in elite athletes 3. Experimental studies have shown that endurance aerobic training leads to PEF improving 3 4.…”

Section: Discussionmentioning

confidence: 99%

“…Experimental studies have shown that endurance aerobic training leads to PEF improving 3 4. Aside from the generally accepted fact that physical activity leads to cardiorespiratory fitness level improving, it was demonstrated that frequent and prolonged periods of hyperpnoea during physical activity (characterised certain high-level sports), may also be harmful to pulmonary health 21.…”

Section: Discussionmentioning

confidence: 99%

“…There are a few studies addressed to the physical activity effect on the pulmonary function and ventilatory test parameters in different athlete groups 3 4. Other studies aiming at describing of the pathological respiratory conditions, such as pulmonary oedema and pulmonary blood–gas barrier damage, particularly during maximal effort exercises, are also presented 5 6.…”

Section: Introductionmentioning

confidence: 99%

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The training type influence on male elite athletes’ ventilatory function

Durmic

Popović

Zlatković-Švenda

et al. 2017

BMJ Open Sport Exerc Med

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Background/aimTo assess and compare measured ventilatory volumes (forced expiratory volume in 1 s (FEV1), peak expirium flow (PEF) and maximal voluntary ventilation (MVV)), ventilatory function capacities (forced vital capacity (FVC) and vital capacity (VC)) and FEV1/VC ratio in a sample of power and endurance elite athletes and their age-matched and sex-matched sedentary control group.MethodsA cross-sectional study was applied on male elite athletes (n=470) who were classified according to the type of the predominantly performed exercise in the following way: group 1: endurance group (EG=270), group 2: power athletes group (SG=200) and group 3: sedentary control group (CG=100). The lung VC, FVC, FEV1, FEV1/FVC ratio, PEF and MVV were measured in all of the observed subjects, who were also classified with regard to body mass index (BMI) and the percentage of the body fat (BF%).ResultsThe CG had the highest BF% value, while the endurance group had the lowest BMI and BF% value, which is significantly different from the other two groups (p<0.05). The observed values of VC, FVC and FEV1 in the EG were significantly higher than those from the other two groups (p<0.05). There were no differences concerning the observed FEV1/FVC ratio.ConclusionsA continued endurance physical activity leads to adaptive changes in spirometric parameters (VC, FVC and FEV1), highlighting the fact that there is a need for specific consideration of different respiratory ‘pattern’ development in different types of sport, which also has to be further evaluated.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The training type influence on male elite athletes’ ventilatory function

Durmic

Popović

Zlatković-Švenda

et al. 2017

BMJ Open Sport Exerc Med

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“…We believe that the study has a number of clinical implications. DT assessment by ultrasound has been already validated in healthy subjects [ 10 , 37 ] and in supine position [ 9 ]. Moreover, it represents an inexpensive, noninvasive and easy method, available in all clinical centers, for assessing the progressive diaphragm involvement in DMD patients, to potentially be considered as outcome measure in clinical trials.…”

Section: Discussionmentioning

confidence: 99%

Assessment of diaphragmatic thickness by ultrasonography in Duchenne muscular dystrophy (DMD) patients

et al. 2018

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IntroductionIn Duchenne muscular dystrophy (DMD) the assessment of diaphragmatic function is crucial because respiratory muscle weakness can cause respiratory failure. We aimed to noninvasively assess diaphragmatic function in DMD by measuring diaphragmatic thickness by ultrasonography, under the hypothesis that the progressive decrease of lung function is related to alterations of diaphragmatic thickness.MethodsForty-four DMD patients and thirteen healthy controls were enrolled and subdivided into three age groups. Diaphragmatic thickness was measured during quiet breathing, inspiratory capacity, maximal inspiratory pressure and expiratory pressure maneuvers.ResultsIn DMD, absolute values of diaphragmatic thickness were significantly lower than in controls in the majority of the manoeuvers and diaphragmatic thickness significantly decreased with age at end-expiration, remaining constant at end-inspiration and during maximal inspiratory pressure maneuvers. Comparing to controls, absolute values of diaphragmatic thickness and diaphragmatic thickness variations were significantly lower (p<0.001), with the exception of quiet breathing and maximal expiratory pressure maneuvers in the youngest DMD. During maximal inspiratory pressure maneuver, variation of diaphragmatic thickness was not significantly different in the all groups, nevertheless maximal inspiratory pressure decreases with age.ConclusionsThe diaphragm is prone to pseudo-hypertrophy in the youngest DMD, and to progressive atrophy in middle-age and oldest DMD. Diaphragm impairment could be expressed as a dissociation between muscle drive and muscle developed force. Ultrasonography could be used as a noninvasive method to assess progressive diaphragmatic weakness.

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“…First an assessment of body composition was conducted using bioelectrical impedance analysis (Bodystat 1500, Isle of Man, UK; for details see Brown et al, 2013). Following this and during the same session, participants completed an incremental running exercise test on a motorised treadmill (Desmo, Woodway, Germany) without a backpack to determine lactate threshold and lactate turnpoint.…”

Section: ** Table One Near Here** Preliminary Trialsmentioning

confidence: 99%

Whole-body active warm-up and inspiratory muscle warm-up do not improve running performance when carrying thoracic loads

Faghy

Brown

2017

Appl. Physiol. Nutr. Metab.

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Whole body active warm up and inspiratory muscle warm up do not improve running performance when carrying thoracic loads Relative to baseline, pooled PImax was reduced by 9% after the time-trial, which was not different between trials (P>0.05). Time-trial performance was not different between any trials.Whole body AWU and IMW performed alone or combination have no ergogenic effect upon high intensity, short duration performance when carrying a 25 kg load in a backpack. 3 KEY WORDSInspiratory muscle warm-up, load carriage, exercise performance, respiratory system 4

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Ventilatory muscle strength, diaphragm thickness and pulmonary function in world-class powerlifters

Cited by 30 publications

References 25 publications

The training type influence on male elite athletes’ ventilatory function

The training type influence on male elite athletes’ ventilatory function

Assessment of diaphragmatic thickness by ultrasonography in Duchenne muscular dystrophy (DMD) patients

Whole-body active warm-up and inspiratory muscle warm-up do not improve running performance when carrying thoracic loads

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