177 THE EFFECTS OF ACUTE HYPEROXIA ON HEART RATE, MUSCULAR STRENGTH AND MUSCULAR ENDURANCE

1994 ◽  
Vol 26 (Supplement) ◽  
pp. S32
Author(s):  
R. C. Snyder ◽  
D. M. Kleiner
1985 ◽  
Vol 56 (2) ◽  
pp. 97-102 ◽  
Author(s):  
Gail M. Dummer ◽  
David H. Clarke ◽  
Paul Vaccaro ◽  
Lee Vander Velden ◽  
Allan H. Goldfarb ◽  
...  

2017 ◽  
Vol 52 (22) ◽  
pp. 1445-1456 ◽  
Author(s):  
Grant R Tomkinson ◽  
Kevin D Carver ◽  
Frazer Atkinson ◽  
Nathan D Daniell ◽  
Lucy K Lewis ◽  
...  

ObjectiveTo develop sex-specific and age-specific normative values for the nine Eurofit tests in European children and adolescents aged 9–17 years.MethodsA systematic review was undertaken to identify papers that explicitly reported descriptive results for at least one of nine Eurofit tests (measuring balance, muscular strength, muscular endurance, muscular power, flexibility, speed, speed-agility and cardiorespiratory fitness (CRF)) on children and adolescents. Data were included on apparently healthy (free from known disease/injury) children and adolescents aged 9–17 years. Following harmonisation for methodological variation where appropriate, pseudodata were generated using Monte Carlo simulation, with population-weighted sex-specific and age-specific normative centiles generated using the Lambda Mu Sigma (LMS) method. Sex-specific and age-specific differences were expressed as standardised differences in means, with the percentage of children and adolescents with healthy CRF estimated at the sex-age level.ResultsNorms were displayed as tabulated centiles and as smoothed centile curves for the nine Eurofit tests. The final dataset included 2 779 165 results on children and adolescents from 30 European countries, extracted from 98 studies. On average, 78% of boys (95% CI 72% to 85%) and 83% of girls (95% CI 71% to 96%) met the standards for healthy CRF, with the percentage meeting the standards decreasing with age. Boys performed substantially (standardised differences >0.2) better than girls on muscular strength, muscular power, muscular endurance, speed-agility and CRF tests, but worse on the flexibility test. Physical fitness generally improved at a faster rate in boys than in girls, especially during the teenage years.ConclusionThis study provides the largest and most geographically representative sex-specific and age-specific European normative values for children and adolescents, which have utility for health and fitness screening, profiling, monitoring and surveillance.


2004 ◽  
Vol 36 (Supplement) ◽  
pp. S80
Author(s):  
Mike Greenwood ◽  
R Kreider ◽  
C Rasmussen ◽  
C Kerksick ◽  
B Leutholtz ◽  
...  

2004 ◽  
Vol 36 (Supplement) ◽  
pp. S80
Author(s):  
Mike Greenwood ◽  
R Kreider ◽  
C Rasmussen ◽  
C Kerksick ◽  
B Leutholtz ◽  
...  

1975 ◽  
Vol 19 (4) ◽  
pp. 388-393
Author(s):  
LaVerne L. Hoag ◽  
J. Robert Howard ◽  
Jerry L. Purswell

The trend towards mechanization of tasks involving manual labor has increased the importance of static muscular activity (isometric contractions). Information about the physiological reaction to static muscular activity has been increasing rapidly over the last few decades, but little information has been developed on the adaptive responses to chronic exposure to static muscular activity. This paper reports the results of an experiment on adaptive cardiovascular changes to a five week training program in which the % MVC was maintained at 50% for the entire program, i.e., weekly adjustments were made for increases in strength. The only significant change in the cardiovascular response to the training program was an increase in the rate at which the heart rate increased during periods of contraction. The average level of heart rate, systolic blood pressure and diastolic blood pressure did not change with training. Neither the systolic or diastolic blood pressure modified their rates of change due to training. Significant changes in strength and endurance hold capacity were also noted.


2019 ◽  
Vol 39 (3) ◽  
pp. 104-111 ◽  
Author(s):  
Justin J. Lang ◽  
Richard Larouche ◽  
Mark S. Tremblay

Introduction This study explored the relationship between physical fitness and indicators of physical and psychosocial health in a nationally representative sample of Canadian children and youth aged 6–17 years. Methods We conducted a secondary data analysis of Canadian Health Measures Survey (Cycles 1 and 2; 2007-2011) data. The physical fitness measures included cardiorespiratory fitness (CRF; modified Canadian Aerobic Fitness Test), strength (handgrip strength), flexibility (sit-and-reach), and muscular endurance (partial curl-ups). The physical health indicators included directly measured biomarkers (total and HDL [high-density lipoprotein] cholesterol, C-reactive protein, glucose, and HbA1c [glycohaemoglobin]) and measures of adiposity, resting heart rate, and blood pressure. Psychosocial health was assessed using the Strengths and Difficulties Questionnaire. Multiple linear regressions were used to determine the association between variables, stratified by age groups and sex. Results 3,800 (48.9% female) children and youth were retained for this analysis. CRF displayed significant favourable associations with most physical health indicators in male and female participants. There were less significant favourable associations with flexibility and muscular endurance compared with CRF across age and sex groups. Strength was associated with higher adiposity in males and females, and lower heart rate in male children (β = −1.9; 95% CI: −2.9, −1.0) and female youth (β = −2.0; 95% CI: −2.7, −1.2). There were few significant favourable associations between measures of physical fitness and psychosocial health in this sample of children and youth. Conclusion These findings suggest that physical fitness, and especially CRF, is a significant indicator of physical health among Canadian children and youth aged 6–17 years.


Author(s):  
Rosimere de Lima Souza ◽  
Karine Rocha Moriz ◽  
Francisca Deyze Reis Teixiera ◽  
Adriano Araújo Fernandes ◽  
Sinval Souza da Costa Neto ◽  
...  

Background: Neural mobilization is characterized by the neurodynamics of the nervous system with the objectives of: reducing musculoskeletal tension and pain and increasing muscular endurance and strength. Stroke is a worldwide health problem due to the impacts on quality of life, and makes the physical capacity of individuals after stroke about 40% lower of normal individuals of the same age. Objective: To verify the efficacy of neural mobilization in patients with stroke. Methods: This is a blinded randomized clinical trial performed in 12 volunteers, aged between 20 and 80 years, with a diagnosis of ischemic or hemorrhagic stroke. It was performed five mobilizations of 60 seconds in the bilateral sciatic nerve. The degree of balance and gait of the volunteers was verified, as well as the muscular strength and flexibility of the quadriceps and hamstrings muscles pre-mobilization, immediately after and after 10 sessions performed three times a week. Results: Neural mobilization on neurological patients showed positive effects in relation to flexibility, lower limb muscle strength, gait and balance. Conclusion: The present study demonstrated that the technique of neural mobilization can present good results in neurological patients with stroke sequelae. However, it is suggested that more studies be done with a larger number of volunteers and with a homogeneous sample on the approach of this technique in patients with neurological sequelae.


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