Cardiorespiratory response to exercise on a rowing and bicycle ergometer

Cunningham, D. A.; Goode, P B; Critz, Jerry B.

doi:10.1249/00005768-197500710-00008

“…Além disso, a pressão intra-abdominal aumentada durante algumas fases do movimento da remada dificulta a ventilação. Estas alterações fisiológicas são encaradas como limitantes da VE e do VO 2 durante o exercício máximo do remo 28,29 . Tais alterações parecem estar relacionadas com um fenômeno característico do remo, o acoplamento da respiração com o gesto técnico da remada 20 .…”

Section: Conclusãounclassified

Método alternativo de determinação de limiar anaeróbio em remadores

Cunha

¹

,

Baptista

²

,

Ribeiro

³

et al. 2008

Rev. Bras. Cineantropom. Desempenho Hum.

0

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No remo, o padrão treinado de respiração dos atletas dificulta e até impossibilita a detecção dos limiares ventilatórios, devido ao acoplamento da respiração com o gesto técnico. Neste sentido, alguns autores têm proposto a determinação do limiar anaeróbio através da razão de trocas respiratórias (R), mas ainda não existe consenso sobre qual o valor da R que pode ser utilizado. O objetivo deste estudo foi verificar qual o valor da R que corresponde ao limiar anaeróbio e se este valor pode ser utilizado como um parâmetro independente de determinação de limiar anaeróbio em remadores. A amostra foi composta de 23 remadores, todos do sexo masculino. O VO 2máx e as variáveis fisiológicas correspondentes ao limiar anaeróbio foram verificados através de um teste progressivo máximo em remoergômetro, simultaneamente a uma ergoespirometria. O limiar anaeróbio foi verificado através do método Dmáx (maximal distance). As variáveis fisiológicas foram separadas em valores máximos e valores referentes ao limiar anaeróbio. Os remadores possuíam no estágio máximo, VO 2 (58,2±4,4 ml.kg aBstraCtIn rowing, the standard breathing that athletes are trained to use makes it difficult, or even impossible, to detect ventilatory limits, due to the coupling of the breath with the technical movement. For this reason, some authors have proposed determining the anaerobic threshold from the respiratory exchange ratio (RER), but there is not yet consensus on what value of RER should be used. The objective of this study was to test what value of RER corresponds to the anaerobic threshold and whether this value can be used as an independent parameter for determining the anaerobic threshold of rowers. The sample comprised 23 male rowers. They were submitted to a maximal cardiorespiratory test on a rowing ergometer with concurrent ergospirometry in order to determine VO 2máx and the physiological variables corresponding to their anaerobic threshold. The anaerobic threshold was determined using the Dmax (maximal distance) method. ), power (300± 37.8 W) and RER (0.99±0.1). Conclusions -the RER can be used as an independent method for determining the anaerobic threshold of rowers, adopting a value of 0.99, however, RER should exhibit a non-linear increase above this figure.

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“…Little research has been conducted on rowing performance and it is difficult to extrapolate findings from cycle or treadmill performance to rowing performance. (13,23) A few studies have shown that maximal oxygen uptake and maximum oxygen uptake steady state can be used to predict 2km rowing performance in both male and female rowers, of various competitive experience and relative to their age and competitive experience. (13,23,45) A higher maximal oxygen uptake is associated with faster times during a 2km race in rowers of varying competitive experience.…”

Section: Introductionmentioning

confidence: 99%

“…(13,23) A few studies have shown that maximal oxygen uptake and maximum oxygen uptake steady state can be used to predict 2km rowing performance in both male and female rowers, of various competitive experience and relative to their age and competitive experience. (13,23,45) A higher maximal oxygen uptake is associated with faster times during a 2km race in rowers of varying competitive experience. (13,23) Because of the duration of the time trial and the fact that most competitive rowers can maintain an intensity equal to 96% of maximal oxygen uptake for the entire race, maximal oxygen uptake may be a strong predictor of race performance.…”

Section: Introductionmentioning

confidence: 99%

“…(13,23,45) A higher maximal oxygen uptake is associated with faster times during a 2km race in rowers of varying competitive experience. (13,23) Because of the duration of the time trial and the fact that most competitive rowers can maintain an intensity equal to 96% of maximal oxygen uptake for the entire race, maximal oxygen uptake may be a strong predictor of race performance. (40) In addition, the higher the power output (watts) an individual can sustain in a steady state, the better the performance in a 2km race.…”

Section: Introductionmentioning

confidence: 99%

“…Because the 2km race typically requires maximal effort, the aerobic energy system will likely not be able to satisfy the energy demands leading to an increased reliance on glycolysis. (13,14,38) This reliance on glycolysis will increase lactic acid, hydrogen ions, non-metabolic CO2 and ventilation. (41) The ventilatory breakpoint is a non-invasive correlate of the anaerobic threshold that has previously been validated through research.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Predictors of 2 Kilometer Rowing Ergometer Time Trial Performance

Metz¹,

Goss²,

Robertson³

et al. 2018

Medicine &Amp; Science in Sports &Amp; Exercise

1

0

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Airway, Lung, and Respiratory Muscle Function During Exercise

Dempsey

¹

,

Adams

²

,

Ainsworth

³

et al. 1996

Comprehensive Physiology

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The sections in this article are: Regulation of the Upper Airway During Exercise Anatomy and Physiology of the Upper Airway Contractile Properties and Endurance of Upper Airway Muscles Changes in Upper Airway Flow Resistance During Exercise Upper Airway Muscle Activities during Exercise Oronasal Distribution of Respiratory Airflow Effects of Exercise on Passive Respiratory Mechanics Elastic Properties Total Lung Capacity Expiratory Flow Rates, Vital Capacity, and Residual Volume Breathing Pattern During Exercise Mechanical Breathing Pattern Methods of Assessment of Respiratory Muscle Contraction Pattern of Respiratory Muscle Contraction Influence of Sensory Feedback on Breathing Pattern Influence of Respiratory Mechanics on Breathing Pattern Influence of Duration of Exercise on Breathing Pattern Influence of Mode of Exercise on Breathing Pattern Breathing Pattern during Recovery from Exercise Physiological Implications of Exercise Breathing Pattern Importance of Respiratory Load in Regulation of Exercise Hyperpnea Helium‐Oxygen Unloading Unloading with Pressure Assist Conclusion Locomotor‐Respiration Interdependence Entrainment—the Most Obvious Locomotor‐Respiratory Interaction How Does Entrainment Effect Ventilation? Is there Stronger Evidence to Support a Significant Biomechanical Effect of Locomotion on Respiration in Dogs? Are Biomechanical Effects Important in Entrainment in Humans? Locomotory: Respiratory Interactions, Independent of Entrainment Conclusion Respiratory Muscle Perfusion and Energetics Oxygen Cost of Hyperpnea Respiratory Muscle Blood Flow Exercise‐Induced Respiratory Muscle Fatigue Respiratory System Design Assessment of Diaphragm Fatigue in Animal Models Glycogen Depletion Fiber Type Recruitment Definition of Fatigue Task Failure vs. Objective Assessment of Fatigue Contractile Changes with Fatigue Predicting Respiratory Muscle Fatigue During Exercise Application of Resting Tests to Respiratory Muscle Function During Exercise Assessment of Respiratory Muscle Fatigue in Humans Volitional Tests Volitional Tests Applied to Exercise Nonvolitional Tests Bilateral Phrenic Nerve Stimulation ( BPNS ) Characteristics of Diaphragm Fatigue High‐ vs. Low‐Frequency Fatigue Sites and Mechanisms of Respiratory Muscle Fatigue Central Fatigue in Humans Neurotransmission Fatigue Bilateral Phrenic Nerve Stimulation Applied to Exercise Short‐Term Exercise Endurance Exercise Factors Contributing to the Decline in Twitch Pdi Following Exercise Role of Diaphragmatic Force Output in Fatigue Consequences of Exercise‐Induced Diaphragmatic Fatigue Fatigue vs. Task Failure Does Training of Respiratory Muscles Affect Exercise Performance? Altered Respiratory Muscle Recruitment with Fatigue Physical Training Effects on Respiratory Muscles Respiratory Muscle Morphology and Contractile Properties Whole‐Body Training: Effects on Rodent Respiratory Muscles Whole‐Body Exercise: Effects on Human Respiratory Muscle Performance Specific Respiratory Muscle Training Respiratory Sensation During Exertion Mechanisms of Respiratory Sensations during Exercise Methods of Assessing Respiratory Sensations Respiratory Movements An Urge to Breathe A Sense of Respiratory Effort Respiratory Sensation as a Respiratory Controller during Exercise Respiratory Sensation as a Limiting Factor during Exercise Conclusions Summary—Pulmonary System Limitations and Their Effects on Exercise Performance Absence of Pulmonary System Limitations in the Normally Fit Contrasting Adaptabilities: Demand vs. Capacity Alveolar Capillary Diffusion Surface of the Lung Ventilatory Limitations/Constraints Inadequate Alveolar Ventilation and Limitations Endurance Exercise Performance Special Circumstances Favoring Pulmonary Limitations to Exercise Performance in Health Hypoxia of High Altitudes Aging Effects on Pulmonary Limitations

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Cardiorespiratory response to exercise on a rowing and bicycle ergometer

Cited by 56 publications

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Método alternativo de determinação de limiar anaeróbio em remadores

Método alternativo de determinação de limiar anaeróbio em remadores

Predictors of 2 Kilometer Rowing Ergometer Time Trial Performance

Airway, Lung, and Respiratory Muscle Function During Exercise

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