Relationship between respiratory muscle endurance and dyspnea during high-intensity exercise in trained distance runners

The primary objective of this study was to investigate the effects of a 4-week respiratory muscle endurance training (eRMT) program on the physiological and psychological aspects of central fatigue using, respectively, near-infrared spectroscopy (NIRS) and quantification of effort perceptions during maximal exercise. A secondary objective was to assess any impact of eRMT on respiratory health and exercise performance. This study compared pre- and post-eRMT data from the same group of healthy adults. The results indicated that eRMT did not have any effect on respiratory function, exercise time to exhaustion, or physiological responses to exercise but significantly decreased ratings of perceived exertion (RPE) during exercise. An increase in the concentrations of oxygenated hemoglobin [O2Hb], deoxygenated hemoglobin [HHb], and total hemoglobin [tHb] during exercise was observed post-eRMT compared to pre-eRMT, and this increase differed by hemisphere. Based on these preliminary findings, we suggest an eRMTinduced left-to-right hemodynamic shift during exercise, consistent with the change from a novel to a learned task.

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Effects of Respiratory Muscle Endurance Training in Hypoxia on Running Performance

Medicine & Science in Sports & Exercise ◽

10.1249/mss.0000000000001929 ◽

2019 ◽

Vol 51 (7) ◽

pp. 1477-1486 ◽

Cited By ~ 3

Author(s):

KEISHO KATAYAMA ◽

KAZUSHIGE GOTO ◽

TOSHIYUKI OHYA ◽

ERIKA IWAMOTO ◽

KENJI TAKAO ◽

...

Keyword(s):

Endurance Training ◽

Respiratory Muscle ◽

Muscle Endurance ◽

Running Performance ◽

Respiratory Muscle Endurance

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Exercise Training for Heart Failure Patients Improves Respiratory Muscle Endurance, Exercise Tolerance, Breathlessness, and Quality of Life

Journal of Cardiopulmonary Rehabilitation ◽

10.1097/00008483-200301000-00003 ◽

2003 ◽

Vol 23 (1) ◽

pp. 10-16 ◽

Cited By ~ 32

Author(s):

Timothy R. McConnell ◽

Jeffrey S. Mandak ◽

Jeffrey S. Sykes ◽

Henry Fesniak ◽

Himadri Dasgupta

Keyword(s):

Quality Of Life ◽

Heart Failure ◽

Exercise Training ◽

Endurance Exercise ◽

Exercise Tolerance ◽

Respiratory Muscle ◽

Muscle Endurance ◽

Heart Failure Patients ◽

Respiratory Muscle Endurance

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Effects of long-term respiratory muscle endurance training on respiratory and functional outcomes in patients with Myasthenia gravis

Respiratory Medicine ◽

10.1016/j.rmed.2018.09.001 ◽

2018 ◽

Vol 144 ◽

pp. 7-15 ◽

Cited By ~ 5

Author(s):

Sophie Freitag ◽

Stephanie Hallebach ◽

Irene Baumann ◽

Petra Kalischewski ◽

Beate Rassler

Keyword(s):

Myasthenia Gravis ◽

Endurance Training ◽

Functional Outcomes ◽

Respiratory Muscle ◽

Muscle Endurance ◽

Respiratory Muscle Endurance

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Long-Term Respiratory Muscle Endurance Training in Patients with Myasthenia Gravis: First Results after Four Months of Training

Autoimmune Diseases ◽

10.4061/2011/808607 ◽

2011 ◽

Vol 2011 ◽

pp. 1-7 ◽

Cited By ~ 7

Author(s):

Beate Rassler ◽

Grit Marx ◽

Stephanie Hallebach ◽

Petra Kalischewski ◽

Irene Baumann

Keyword(s):

Myasthenia Gravis ◽

Endurance Training ◽

Respiratory Muscle ◽

Muscle Endurance ◽

Endurance Time ◽

Maintenance Program ◽

Training Frequency ◽

First Results ◽

Respiratory Muscle Endurance

Myasthenia gravis (MG) is characterized by reduced muscle endurance and is often accompanied by respiratory complications. Improvement of respiratory function is therefore an important objective in MG therapy. A previous study demonstrated that respiratory muscle endurance training (RMET) over four weeks increased respiratory muscle endurance of MG patients to about 200% of baseline. The purpose of the present study was to establish an appropriate maintenance training and to test its effects over four months. Ten patients with mild to moderate MG participated in this study. During the first month, they performed five training sessions per week. For the following 3 months, training frequency was reduced to five sessions per two weeks. Myasthenia score, lung function, and respiratory endurance were determined prior to training, after the first month, and after 4 months. Myasthenia score improved from0.71±0.1to0.56±0.1(P=0.007). Respiratory endurance time increased from6.1±0.8to20.3±3.0min (P<0.001). In conclusion, this RMET maintenance program is feasible and is significantly beneficial for MG patients.

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