scholarly journals Inspiratory muscle training abolishes the blood lactate increase associated with volitional hyperpnoea superimposed on exercise and accelerates lactate and oxygen uptake kinetics at the onset of exercise

2011 ◽  
Vol 112 (6) ◽  
pp. 2117-2129 ◽  
Author(s):  
Peter I. Brown ◽  
Graham R. Sharpe ◽  
Michael A. Johnson
Keyword(s):  
Oxygen Uptake ◽  
Blood Lactate ◽  
Oxygen Uptake Kinetics ◽  
Uptake Kinetics ◽  
Inspiratory Muscle ◽  
Inspiratory Muscle Training ◽  
Muscle Training

EFFECTS OF BLOOD LACTATE ON OXYGEN UPTAKE KINETICS DURING RECOVERY AFTER SPRINT IN HUMANS

2012 ◽  
Vol 29 (3) ◽  
pp. 171-176
Author(s):  
Ryouta Matusura ◽  
Takuma Arimitsu ◽  
Ryou Yamanak ◽  
C Lian ◽  
R Afroundeh ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Blood Lactate ◽  
Oxygen Uptake Kinetics ◽  
Uptake Kinetics

scholarly journals Effect of Inspiratory Muscle Training on Performance of Handball Athletes

2018 ◽  
Vol 63 (1) ◽  
pp. 43-51 ◽  
Author(s):  
Charlini S. Hartz ◽  
Márcio A. G. Sindorf ◽  
Charles R. Lopes ◽  
José Batista ◽  
Marlene A. Moreno
Keyword(s):  
Muscle Strength ◽  
Oxygen Uptake ◽  
Effect Size ◽  
Respiratory Muscle ◽  
Inspiratory Muscle ◽  
Inspiratory Muscle Training ◽  
Respiratory Muscle Strength ◽  
Muscle Training ◽  
Significant Difference ◽  
Small Effect Size

Abstract Inspiratory muscle training (IMT) is a strategy that has been used to improve performance in different sports modalities. This study investigated the effects of an IMT program on respiratory muscle strength and resistance as well as aerobic physical performance (PP) of handball athletes. Nineteen 20 ± 3 year-old male athletes were allocated into an experimental (EG, n = 10) or a placebo group (PG, n = 9). Their respiratory muscle strength was evaluated by measuring the maximum inspiratory and expiratory pressures (MIP and MEP), muscular respiratory resistance by maximum voluntary ventilation (MVV) and aerobic PP by the cardiopulmonary exercise test. The study was designed to evaluate the effects of a 12-week IMT program with five sessions a week. A significant difference was observed in the pre and post IMT values of the MIP (170 ± 34 to 262 ± 33 cmH2O) and MEP (177 ± 36 to 218 ± 37 cmH2O) in the EG, and MIP (173 ± 45 to 213 ± 21 cmH2O) in the PG, with a large effect size for the MIP, when the groups were compared. MVV showed a significant increase (162 ± 24 to 173 ± 30 L) in the EG, with a small effect size. There was a significant difference in maximum oxygen uptake (54 ± 8 to 60 ± 7 ml/kg/min) in aerobic PP. Oxygen uptake at the respiratory compensation point (RCP) (46 ± 6 to 50 ± 5 ml/kg/min), with a moderate effect size for both variables, was observed in the EG after IMT. We concluded that IMT provided a significant increase in respiratory muscle strength and resistance, contributing to increased aerobic PP in the EG, which suggests that IMT could be incorporated in handball players’ training.

scholarly journals RELATIONSHIPS BETWEEN OXYGEN UPTAKE KINETICS ON RECOVERY FROM MAXIMAL EXERCISE AND BLOOD LACTATE, GLUCOSE AND ALANINE METABOLISM

1997 ◽  
Vol 46 (5) ◽  
pp. 479-488
Author(s):  
YOSHITAKE OSHIMA ◽  
SHIGEHIRO TANAKA ◽  
TADAYOSHI MIYAMOTO ◽  
TSUYOSHI WADAZUMI ◽  
NAOTSUGU KURIHARA ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Blood Lactate ◽  
Maximal Exercise ◽  
Oxygen Uptake Kinetics ◽  
Uptake Kinetics

scholarly journals Association between inspiratory muscle weakness and slowed oxygen uptake kinetics in patients with chronic obstructive pulmonary disease

2017 ◽  
Vol 42 (12) ◽  
pp. 1239-1246 ◽  
Author(s):  
Andiara Wolpat ◽  
Francisco V. Lima ◽  
Fabiola M. Silva ◽  
Micheli Tochetto ◽  
Andressa de Freitas ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Oxygen Uptake ◽  
Pulmonary Disease ◽  
Muscle Weakness ◽  
Oxygen Uptake Kinetics ◽  
Uptake Kinetics ◽  
Inspiratory Muscle ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Copd Patients

Patients with chronic obstructive pulmonary disease (COPD) may have poor inspiratory muscle function, which reduces minute and alveolar ventilation, leading to increased hypoxemia and slow pulmonary oxygen uptake kinetics. However, little is known about the effect of inspiratory muscle weakness (IMW) on oxygen uptake kinetics in patients with COPD. Thus, we tested the hypothesis that COPD patients with IMW have slowed oxygen uptake kinetics. An observational study was conducted that included COPD patients with moderate to severe airflow limitation and a history of intolerance to exercise. Participants were divided into 2 groups: (IMW+; n = 22) (IMW–; n = 23) of muscle weakness. The maximal inspiratory, expiratory, and sustained inspiratory strength as well as the maximal endurance of the inspiratory muscles were lower in IMW+ patients (36 ± 9.5 cm H2O; 52 ± 14 cm H2O; 20 ± 6.5 cm H2O; 94 ± 84 s, respectively) than in IMW– patients (88 ± 12 cm H2O; 97 ± 28 cm H2O; 82.5 ± 54 cm H2O; 559 ± 92 s, respectively; p < 0.05). Moreover, the 6-min walk test and peak oxygen uptake were reduced in the IMW+ patients. During the constant work test, oxygen uptake kinetics were slowed in the IMW+ compared with IMW– patients (88 ± 29 vs 61 ± 18 s, p < 0.05). Our findings demonstrate that inspiratory muscle weakness in COPD is associated with slowed oxygen uptake kinetics, and thus, reduced functional capacity.

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