Physical working capacity of young men of different ethnic groups in Israel.

1974 ◽  
Vol 37 (1) ◽  
pp. 22-26 ◽  
Author(s):  
Z Glick ◽  
E Shvartz
Keyword(s):  
Ethnic Groups ◽  
Young Men ◽  
Physical Working Capacity ◽  
Working Capacity

Effect of an anabolic steroid on physical performance of young men

1965 ◽  
Vol 20 (5) ◽  
pp. 1038-1040 ◽  
Author(s):  
William M. Fowler ◽  
Gerald W. Gardner ◽  
Glen H. Egstrom
Keyword(s):  
Physical Performance ◽  
Anabolic Steroid ◽  
Motor Performance ◽  
Vital Capacity ◽  
Young Men ◽  
Physical Working Capacity ◽  
Working Capacity ◽  
Skin Fold Thickness ◽  
Skin Fold ◽  
Increased Strength

The performance of 47 men was measured during a 16-week study. Eight of the men received placebos; nine received 1-methyl-Delta1-androstenolone acetate, an anabolic steroid; 15 received placebos and exercise; and 15 received the drug and exercise. There were no significant differences in strength, motor performance, or physical working capacity between the control and the androstenolone-supplemented groups. Differences in other factors such as vital capacity, limb circumference, and skin-fold thickness were also nonsignificant. Under the conditions imposed in this study there was no evidence that the anabolic steroid increased strength in young men. ergogenic drugs; strength measurements and physical working capacity under anabolic steroid therapy Submitted on December 14, 1964

scholarly journals MORPHOFUNCTIONAL SCREENING OF 17-19 YEARS OLD YOUNG MEN IN THE PROCESS OF PHYSICAL EDUCATION

2021 ◽  
Author(s):  
Oleksandr Petrachkov ◽  
◽  
Olena Yarmak ◽  
Keyword(s):  
Young Men ◽  
Average Level ◽  
Excess Body Weight ◽  
Physical Culture ◽  
Physical Working Capacity ◽  
Working Capacity ◽  
Left Hand ◽  
Theoretical Substantiation ◽  
The Difference ◽  
The Individual

The scientific work presents a detailed analysis of the 17-19 years young men morphofunctional status screening studies. The young men who took part in the research did not have any pathologies in their health and belonged to the main medical group. To effectively address the goal of the study, a wide range of methods typical of researches in the field of physical culture and sports was used. A total of 34 indicators were studied, including 23 direct measurements. The reliability of the obtained results is confirmed by adequate theoretical substantiation of scientific positions and research apparatus, highly informative and reliable research methods, optimal duration, correctness of processing, analysis and interpretation of the obtained data. The relevance of the chosen topic is confirmed by the results of the study, which were based on knowledge of age anatomy, age physiology, hygiene of physical culture and sports. Analysis of the young men morphological condition individual results in pre-conscription age indicates incomplete formation of the musculoskeletal system, and the circumferential size of the waist and hips, which exceeded physiological norms indicate the presence of excess body weight. There is a significant asymmetry between the results of wrist dynamometry, the difference between the strength of the right hand and the left hand is 6.2 kg. Studies of the body composition revealed that the average group performance of muscle and bone components of the young men aged 17-19 years is below the physiological norm. The range of muscle component values ranges from a minimum of 36.2% to a maximum of 78.7%, indicating sample heterogeneity. Studies of cardiovascular parameters revealed: heart rate at rest, which exceeded the physiological norm in 26.3% of test subjects, signs of bradycardia in 7.6% of test subjects, signs of hypotension were found in 4.7% of test subjects, signs of hypertension were found in 18.4% of test subjects. We found 7.6% of young men with the pulse pressure exceeded the permissible threshold. The vast majority, which is 70.7% of the studied young men of pre-conscription age, had individual results of endurance coefficient in the range of 17-29 s.u., which indicates a weakened activity of the cardiovascular system. Low individual indicators of lung vital capacity are observed at 8.3% of young men, and are in the range of 2.6-2.9 l. 10.1% of young men with individual respiratory rate results significantly higher than the age norm were also found. In the course of the study, we found that only 19.1% of pre-conscription youth had individual results of the hypoxia index which corresponded to the age norm. The individual results of the Rufier test in pre-conscription young men were distributed as follows: 7.9% have above average level of physical working capacity, 37.2% have average level of physical working capacity, 42.3% have satisfactory level, 12.6% have low level of physical working capacity. It should be noted that as a result of the study we did not find any young men who would have a high level of physical capacity.

Arterial elasticity and physical working capacity in young men

1986 ◽  
Vol 61 (5) ◽  
pp. 1720-1723 ◽  
Author(s):  
M. Eugene ◽  
H. Vandewalle ◽  
J. F. Bertholon ◽  
A. Teillac
Keyword(s):  
Vascular Reactivity ◽  
Cold Pressor Test ◽  
Young Men ◽  
Cold Pressor ◽  
Work Load ◽  
Cycle Ergometer ◽  
Arterial Elasticity ◽  
Physical Working Capacity ◽  
Working Capacity ◽  
The Relationship

We have tested the hypothesis that there is a positive relation between arterial elasticity and physical working capacity (PWC) at a given age. The subjects were 28 young men, 16–18 yr old. Arterial elasticity was evaluated by measuring the carotid to femoral pulse-wave velocity (c) at rest. The slope, S(c) of the relation between c and the diastolic blood pressure was studied during a cold pressor test to test vascular reactivity. The relationship between heart rate (HR) and work load was determined using a cycle ergometer; the variables measured were the slope of this relation S(PWC) and the power output at a HR of 170 min-1 (PWC170). The PWC170 ranged from 1.8 to 4.6 W/kg, and values of c ranged from 3.9 to 6.8 m/s. A strong inverse linear relation was found between c and PWC170 (r = -0.76), whereas the HR at rest was positively related to both c (r = 0.68) and PWC170 (r = 0.74). There was no relationship between HR at rest and the slopes S(c) and S(PWC); the latter two variables depend mainly on the sympathetic response. These results show the importance of the intrinsic mechanical properties of the cardiovascular system, particularly arterial elasticity, in human adaptations to muscular exercise.

scholarly journals Cardiorespiratory Fitness and Diet Quality Profile of the Lithuanian Team of Deaf Women’s Basketball Players

2020 ◽  
Vol 17 (18) ◽  
pp. 6749
Author(s):  
Marius Baranauskas ◽  
Valerija Jablonskienė ◽  
Jonas Algis Abaravičius ◽  
Rimantas Stukas
Keyword(s):  
Vitamin D ◽  
Body Composition ◽  
Body Weight ◽  
Cardiorespiratory Fitness ◽  
Female Athletes ◽  
The Body ◽  
Physical Working Capacity ◽  
Working Capacity ◽  
Women's Basketball ◽  
Basketball Team

There are about 466 million people with hearing impairments in the world. The scientific literature does not provide sufficient data on the actual nutrition and other variables of professional deaf athletes. The objectives of this study were to investigate and evaluate the body composition, the physical working capacity, the nutrition intake, and the blood parameters of iron and vitamin D in the Lithuanian high-performance deaf women’s basketball team players. The female athletes (n = 14) of the Lithuanian deaf basketball team aged 26.4 ± 4.5 years were recruited for an observational cross-sectional study. A 7-day food recall survey method was used to investigate their actual diet. The measurements of the body composition were performed using the BIA (bioelectrical impedance analysis) tetra-polar electrodes. In order to assess the cardiorespiratory and aerobic fitness levels of athletes, ergo-spirometry (on a cycle ergometer) was used to measure the peak oxygen uptake (VO2peak) and the physical working capacity at a heart rate of 170 beats per minute (PWC170). The athletes’ blood tests were taken to investigate the red blood cells, hemoglobin, 25-hydroxyvitamin D, ferritin, transferrin, iron concentrations, and total iron-binding capacity (TIBC). The consideration of the VO2peak (55.9 ± 6.1 mL/min/kg of body weight, 95% CI: 51.8, 58.9) and the low VO2peak (56–60 mL/min/kg of body weight) (p = 0.966) in the deaf women’s basketball team players revealed no differences. For the deaf female athletes, the PWC170 was equal to 20.3 ± 2.0 kgm/min/kg of body weight and represented only the average aerobic fitness level. The carbohydrate and protein intakes (5.0 ± 1.3 and 1.3 ± 0.3 g/kg of body weight, respectively) met only the minimum levels recommended for athletes. The fat content of the diet (38.1 ± 4.1% of energy intake) exceeded the maximum recommended content (35% of energy intake) (p = 0.012). The mean blood serum concentrations of 25(OH)D and ferritin (24.1 ± 6.6 nmol/L and 11.0 ± 4.1 µg/L, respectively) predicted vitamin D and iron deficits in athletes. Female athletes had an increased risk of vitamin D and iron deficiencies. Regardless of iron deficiency in the body, the better cardiorespiratory fitness of the deaf female athletes was essentially correlated with the higher skeletal muscle mass (in terms of size) (r = 0.61, p = 0.023), the lower percentage of body fat mass (r = −0.53, p = 0.049), and the reduced intake of fat (r = −0.57, p = 0.040).

PAROXYSMAL TACHYCARDIA IN INFANCY: FOLLOW-UP STUDY OF 47 SUBJECTS RANGING IN AGE FROM 10 TO 26 YEARS

PEDIATRICS ◽  
1973 ◽  
Vol 51 (1) ◽  
pp. 26-35
Author(s):  
Åke Lundberg
Keyword(s):  
Physical Education ◽  
Maintenance Therapy ◽  
Physical Working Capacity ◽  
Working Capacity ◽  
Paroxysmal Tachycardia ◽  
Follow Up Study ◽  
The Past ◽  
Triggering Factor

A follow-up study of 47 individuals with paroxysmal tachycardia in infancy is reported. The incidence of recurrence decreases from 55% during infancy to 17% up to 10 years of age; a slight increase to 23% is then observed in adolescence. There is a higher incidence of paroxysm in cases with preexcitation in the ECG. Physical overexertion may be a triggering factor in recurrences, but exemption from school physical education and sports should only be granted exceptionally. No signs of reduced physical working capacity were found in this group. The results of maintenance therapy do not appear to have improved in the past decade.

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