scholarly journals Age-related declines in muscle and respiratory function are proportionate to declines in performance in Master Track Cyclists

2021 ◽  
Author(s):  
Pablo Duro Ocana ◽  
Mohammad Z. Darabseh ◽  
Kengo Ishihara ◽  
Aseel Aburub ◽  
Fabio Zambolin ◽  
...  
Keyword(s):  
Muscle Function ◽  
Respiratory Function ◽  
Respiratory Muscle ◽  
Haemoglobin Concentration ◽  
Respiratory Muscle Strength ◽  
Age Related ◽  
Jump Power ◽  
Rate Of Decline ◽  
And Performance ◽  
Track Cycling

Abstract Purpose Respiratory and musculoskeletal function decline with age, irrespective of physical activity levels. Previous work has suggested that the age-related rate of decline in function of these two systems might be similar, but it is not known to what extent each system contributes to decreasing performance in ageing master cyclists. Therefore, the purposes of this study are (1) whether the age-related rate of decline in respiratory function, respiratory muscle strength, muscle architecture, muscle function, haemoglobin concentration, haematocrit and performance in master cyclists is uniform and (2) which parameters contribute most to the reduction in performance with age. Methods Master cyclists were recruited during the Track Cycling Masters World Championship 2019 in Manchester. Respiratory function and respiratory muscle strength were determined using spirometry and a mouth pressure device, respectively. Muscle architecture was determined using ultrasonography, and muscle function by countermovement jump. Results Forced expiratory volume in the first second, forced vital capacity, fascicle length, muscle thickness, take-off velocity, jump power, jump power per body mass, handgrip strength, haemoglobin concentration and performance correlated negatively with age (p ≤ 0.043). The age-related rate of decline did not differ significantly between parameters (p = 0.124), but it was slower for haemoglobin concentration (p = 0.041). Take-off velocity was the major determinant of performance in 200, 500 and 2000 m track cycling disciplines (R2adj = 0.675, 0.786 and 0.769, respectively; p < 0.001). Conclusion Age-related decline in respiratory and muscle system is accompanied by a similar rate of decline in performance. The major contribution to the age-related decline of performance is reduced muscle function, specifically take-off velocity.

scholarly journals Respiratory Function and Respiratory Muscle Strength in Patients with Male Osteoporosis Without Kyphosis

2010 ◽  
Vol 56 (2) ◽  
pp. 49-51
Author(s):  
Selda Bağış ◽  
Mukadder Çalıkoğlu ◽  
Melek Sezgin ◽  
Cengiz Özge ◽  
Özlem Bölgen Çimen
Keyword(s):  
Muscle Strength ◽  
Respiratory Function ◽  
Respiratory Muscle ◽  
Male Osteoporosis ◽  
Respiratory Muscle Strength

Impairment of respiratory muscle function in pulmonary hypertension

2007 ◽  
Vol 114 (2) ◽  
pp. 165-171 ◽  
Author(s):  
Hans-Joachim Kabitz ◽  
Anja Schwoerer ◽  
Hinrich-Cordt Bremer ◽  
Florian Sonntag ◽  
Stephan Walterspacher ◽  
...  
Keyword(s):  
Pulmonary Hypertension ◽  
Muscle Strength ◽  
Muscle Function ◽  
Respiratory Muscle ◽  
World Health ◽  
Walking Distance ◽  
Respiratory Muscle Strength ◽  
Control Subjects ◽  
Respiratory Muscle Function ◽  
Health Organization

It has been suggested that impaired respiratory muscle function occurs in patients with PH (pulmonary hypertension); however, comprehensive investigations of respiratory muscle function, including the application of non-volitional tests, needed to verify impairment of respiratory muscle strength in patients with PH have not yet been performed. In the present study, respiratory muscle function was assessed in 31 patients with PH (20 females and 11 males; mean pulmonary artery pressure, 51±20 mmHg; median World Health Organization class 3.0±0.5; 25 patients with pulmonary arterial hypertension and six patients with chronic thromboembolic PH) and in 31 control subjects (20 females and 11 males) well-matched for gender, age and BMI (body mass index). A 6-min walking test was performed to determine exercise capacity. Volitionally assessed maximal inspiratory (7.5±2.1 compared with 6.2±2.8 kPa; P=0.04) and expiratory (13.3±4.2 compared with 9.9±3.4 kPa; P<0.001) mouth pressures, sniff nasal (8.3±1.9 compared with 6.6±2.2 kPa; P=0.002) and transdiaphragmatic (11.3±2.5 compared with 8.7±2.5 kPa; P<0.001) pressures, non-volitionally assessed twitch mouth (1.46±0.43 compared with 0.97±0.41 kPa; P<0.001) and transdiaphragmatic (2.08±0.55 compared with 1.47±0.72 kPa; P=0.001) pressures during bilateral anterior magnetic phrenic nerve stimulation were markedly lower in patients with PH compared with control subjects. Maximal inspiratory mouth (r=0.58, P<0.001) and sniff transdiaphragmatic (r=0.43, P=0.02) pressures were correlated with the 6-min walking distance in patients with PH. In conclusion, the present study provides strong evidence that respiratory muscle strength is reduced in patients with PH compared with well-matched control subjects. Furthermore, the 6-min walking distance is significantly linked to parameters assessing inspiratory muscle strength.

scholarly journals The Effect of Habitual Exercise on Respiratory-Muscle Function in Older Adults

2005 ◽  
Vol 13 (1) ◽  
pp. 34-44 ◽  
Author(s):  
Mark L. Watsford ◽  
Aron J. Murphy ◽  
Matthew J. Pine ◽  
Aaron J. Coutts
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Muscle Function ◽  
Respiratory Muscle ◽  
Endurance Capacity ◽  
Respiratory Muscle Strength ◽  
Exercise Participation ◽  
Inspiratory Muscles ◽  
Respiratory Muscle Function ◽  
Habitual Exercise

Older adults’ participation in habitual exercise might be affected by alterations to respiratory mechanics such as decreased respiratory-muscle strength. This reduction can cause a decrease in efficiency of the ventilatory pump, potentially compromising exercise participation. This research examined the role of habitual exercise in respiratory-muscle function and the associated implications for exercise performance. Seventy-two healthy older adults (36 men, 64.9 ± 8.6 years, 177.2 ± 8.4 cm, 82.5 ± 11.9 kg; 36 women, 64.9 ± 9.5 years, 161.7 ± 6.4 cm, 61.6 ± 9.2 kg) undertook respiratory-function and walking-performance tests. Active men and women achieved higher scores than their inactive counterparts for all tests except spirometry, where no differences were evident. The results indicate that a significant amount of the elevated fitness level might be accounted for by increased endurance capacity of the inspiratory muscles. Inactive older individuals might be at risk for inadequate respiratory-muscle strength, so interventions should be considered.

Relationship between respiratory muscle function and age, sex, and other factors

1989 ◽  
Vol 66 (2) ◽  
pp. 943-948 ◽  
Author(s):  
H. I. Chen ◽  
C. S. Kuo
Keyword(s):  
Muscle Strength ◽  
Pulmonary Function ◽  
Duty Cycle ◽  
Muscle Function ◽  
Respiratory Muscle ◽  
Forced Expiratory Volume ◽  
Inspiratory Muscle ◽  
Muscle Endurance ◽  
Respiratory Muscle Strength ◽  
Respiratory Muscle Function

To investigate the effects of gender and age on respiratory muscle function, 160 healthy volunteers (80 males, 80 females) were divided into four age groups. Twenty-eight of the male subjects were smokers. After the subjects were familiarized with the experimental procedure, respiratory muscle strength, inspiratory muscle endurance, and spirometric function, including forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), FEV1/FVC, tidal volume, breathing rate, and duty cycle, were measured. The respiratory muscle strength was indicated by the maximal static inspiratory and expiratory pressures (PImmax and PEmmax). Inspiratory muscle endurance was determined by the time the subject was able to sustain breathing against an inspiratory pressure load on a modified Nickerson-Keens device. The results showed that 1) except for inspiratory muscle endurance and FEV1/FVC, men had greater respiratory muscle and pulmonary functions than women, 2) respiratory muscle function and pulmonary function decreased with age, 3) smoking tended to lower duty cycle and FEV1/FVC and to enhance PE,mmax, and 4) inspiratory muscle endurance was greater in men who were physically active than in those who were sedentary. Therefore we conclude that there are sexual and age differences in respiratory muscle strength and pulmonary function and that smoking or physical activity may affect respiratory muscle function.

PULMONARY PHYSIOLOGY IN CHILDREN

PEDIATRICS ◽  
1960 ◽  
Vol 25 (5) ◽  
pp. 766-774
Author(s):  
C. D. Cook ◽  
H. Barrie ◽  
S. A. DeForest ◽  
P. J. Helliesen
Keyword(s):  
Muscle Strength ◽  
Idiopathic Scoliosis ◽  
Muscle Function ◽  
Respiratory Muscle ◽  
Vertebral Column ◽  
Flow Resistance ◽  
Vital Capacity ◽  
Respiratory Muscle Strength ◽  
Lung Volumes ◽  
Pulmonary Physiology

Measurements of lung volumes, compliance and resistance, and effective respiratory muscle strength have been carried out in a series of patients with idiopathic scoliosis, scoliosis secondary to poliomyelitis and scoliosis secondary to abnormalities of the vertebral column. The patients with idiopathic scoliosis showed, in general, moderate reductions in vital capacity, while those with poliomyelitis and associated paralysis showed more marked decreases. Residual volume on the average was essentially unchanged in both groups. Compliance was only moderately but consistently reduced in both groups while flow-resistance was only slightly to moderately increased. In the group of patients with idiopathic scoliosis, effective respiratory muscle strength was normal for given lung volumes but inspiratory strength was subnormal. Serial studies show that after fusion, the patients tended to have a further decrease both in respiratory muscle function and in lung volumes. The frequently serious pulmonary dysfunction accompanying the scoliosis secondary to vertebral abnormalities is illustrated.

scholarly journals Muscle function and quality of life in the Crohn’s disease

2017 ◽  
Vol 30 (2) ◽  
pp. 337-345 ◽  
Author(s):  
Andrea Lemos Cabalzar ◽  
Diana Junqueira Fonseca Oliveira ◽  
Maycon de Moura Reboredo ◽  
Fernando Azevedo Lucca ◽  
Júlio Maria Fonseca Chebli ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Muscle Strength ◽  
Muscle Function ◽  
Respiratory Muscle ◽  
Control Group ◽  
Respiratory Muscle Strength ◽  
Peripheral Muscle ◽  
Sf 36 ◽  
Inflammatory Bowel

Abstract Introduction: Crohn’s disease (CD) is an inflammatory bowel disease, marked by exacerbations and remissions periods. Peripheral manifestations in CD may be present with the syndrome of skeletal muscle dysfunction (SMD), which is characterized by loss of muscle strength, fatigue complain, limited exercise capacity and impaired quality of life of these patients. Objective: Evaluate muscle strength, physical capacity and quality of life of patients with CD and compare them with healthy controls. Methods: 18 patients CD and 12 healthy controls matched for age and sex were involved. Peripheral muscle strength evaluated by handgrip strength of the dominant hand and respiratory muscle strength by measures of respiratory muscle strength (maximal inspiratory/expiratory pressure - MIP and MEP). Exercise capacity evaluated by Shuttle test (ST) and the quality of life by the Short-form 36 (SF-36) and by the Inflammatory Bowel Disease Questionnaire (IBDQ). Results: Patients with CD presented a lower respiratory muscle strength (MIP = -68.93 ± 26.61 vs 29.63 ± -100 cmH2O, p = 0.0013 and MEP = 81.07 ± 30.26 vs 108 ± 25.30 cmH2O, p = 0.032) and a tendency the lower peripheral muscle strength (31.72 ± 8.55 vs 39.00 ± 13.37 kgf, p = 0.09). In addition, CD patients presented worse physical capacity on the ST compared to the control group (513.7 ± 237m vs 983.0 ± 263m, p < 0.05) and worse quality of life in 7 of 8 domains of the SF-36 and in all dimensions of the IBDQ. Conclusion: Patients with CD showed muscle functional impairment and poorer quality of life compared to healthy control group. These findings suggest that the assessment and maybe interventions in the muscle function must be used in clinical practice.

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