A 33-yr follow-up of peak oxygen uptake and related variables of former physical education students

1997 ◽  
Vol 82 (6) ◽  
pp. 1844-1852 ◽  
Author(s):  
Per-Olof Åstrand ◽  
Ulf Bergh ◽  
Åsa Kilbom

Åstrand, Per-Olof, Ulf Bergh, and Åsa Kilbom. A 33-yr follow-up of peak oxygen uptake and related variables of former physical education students. J. Appl. Physiol. 82(6): 1844–1852, 1997.—In 1949, 27 female and 26 male physical education students were studied at a mean age of 22 and 25 yr, respectively. They were restudied in 1970 and 1982. Measurements included oxygen uptake, heart rate, and pulmonary ventilation during submaximal and maximal exercise on a cycle ergometer and treadmill. After 21 yr, peak aerobic power was significantly reduced, from 2.90 to 2.18 l/min and from 4.09 to 3.28 l/min for women and men, respectively. After another 12 yr, the 1970 maxima were not reduced further. From 1949 to 1982 there was a decrease in peak heart rate from 196 to 177 beats/min in women and from 190 to 175 beats/min in men ( P < 0.05). Highest pulmonary ventilation did not change significantly. At an oxygen uptake of 1.5 l/min, the heart rate was the same in 1949 as in 1982. In conclusion, the physical fitness level of the subjects was well above average for these ages. From 1970 to 1982 there was no decline in the average peak aerobic power, a finding possibly related to increased habitual physical activity.

2006 ◽  
Vol 100 (3) ◽  
pp. 951-957 ◽  
Author(s):  
Todd Trappe ◽  
Scott Trappe ◽  
Gary Lee ◽  
Jeffrey Widrick ◽  
Robert Fitts ◽  
...  

To determine the influence of a 17-day exposure to real and simulated spaceflight (SF) on cardiorespiratory function during exercise, four male crewmembers of the STS-78 space shuttle flight and eight male volunteers were studied before, during, and after the 17-day mission and 17 days of −6° head-down-tilt bed rest (BR), respectively. Measurements of oxygen uptake, pulmonary ventilation, and heart rate were made during submaximal cycling 60, 30, and 15 days before the SF liftoff and 12 and 7 days before BR; on SF days 2, 8, and 13 and on BR days 2, 8, and 13; and on days 1, 4, 5, and 8 after return to Earth and on days 3 and 7 after BR. During 15 days before liftoff, day 4 after return, and day 8 after return and all BR testing, each subject completed a continuous exercise test to volitional exhaustion on a semirecumbent (SF) or supine (BR) cycle ergometer to determine the submaximal and maximal cardiorespiratory responses to exercise. The remaining days of the SF testing were limited to a workload corresponding to 85% of the peak pre-SF peak oxygen uptake (V̇o2 peak) workload. Exposure to and recovery from SF and BR induced similar responses to submaximal exercise at 150 W. V̇o2 peak decreased by 10.4% from pre-SF (15 days before liftoff) to day 4 after return and 6.6% from pre-BR to day 3 after return, which was partially (SF: −5.2%) or fully (BR) restored within 1 wk of recovery. Workload corresponding to 85% of the peak pre-SF V̇o2 peak showed a rapid and continued decline throughout the flight (SF day 2, −6.2%; SF day 8, −9.0%), reaching a nadir of −11.3% during testing on SF day 13. During BR, V̇o2 peak also showed a decline from pre-BR (BR day 2, −7.3%; BR day 8, −7.1%; BR day 13, −9.0%). These results suggest that the onset of and recovery from real and simulated microgravity-induced cardiorespiratory deconditioning is relatively rapid, and head-down-tilt BR appears to be an appropriate model of this effect, both during and after SF.


2003 ◽  
Vol 22 (3) ◽  
pp. 298-310 ◽  
Author(s):  
Pamela Hodges Kulinna ◽  
Jeffrey Martin ◽  
Qin Lai ◽  
Amy Kliber ◽  
Brett Reed

The purpose of this study was to determine how physical education students’ cardiovascular responses as determined by mean heart rate, standard deviation of heart rate, and percentage of time in target heart rate zone varied according to student characteristics. Participants were 505 students in Grades 3 through 12. The Polar Accurex Plus heart rate telemetry system was used to measure the physiological load on the cardiovascular system. Three-way ANOVA results suggested that heart rate patterns in physical education varied according to gender, grade, and activity. For example, secondary school girls were more active in individual activities while secondary school boys were more active in team sport activities. Elementary students were the most active group and had the most variability in their heart rate patterns.


1961 ◽  
Vol 16 (6) ◽  
pp. 971-976 ◽  
Author(s):  
Per-Olof &Aring;strand ◽  
Bengt Saltin

Oxygen uptake, heart rate, pulmonary ventilation, and blood lactic acid were studied in five subjects performing maximal work on a bicycle ergometer. After a 10-min warming up period work loads were varied so that exhaustion terminated exercise after about 2—8 min. Peak oxygen uptake and heart rate were practically identical (sd 3.1% and 3 beats/minute, respectively) in the experiments. The heavier the work was and the shorter the work time the higher became the pulmonary ventilation. There was a more rapid increase in the functions studied when the heaviest work loads were performed. It is concluded that aerobic capacity can be measured in a work test of from a few up to about 8 min duration, severity of work determining the actual work time necessary. Duration of work in studies of circulation and respiration during submaximal work should exceed 5 min. Submitted on June 23, 1961


2020 ◽  
Author(s):  
Max L. Eckstein ◽  
Juliano Boufleur Farinha ◽  
Olivia McCarthy ◽  
Daniel J. West ◽  
Jane E. Yardley ◽  
...  

<b>OBJECTIVE</b> <p>To investigate physiological responses to cardio-pulmonary exercise (CPX) testing in adults with type 1 diabetes compared to age-, sex- and body mass index- (BMI) matched controls without type 1 diabetes.</p> <p><b>RESEARCH DESIGN AND METHODS</b></p> <p>We compared results from CPX tests on a cycle ergometer in individuals with type 1 diabetes and controls without type 1 diabetes. Parameters were peak and threshold variables of oxygen uptake, heart rate and power output. Differences between groups were investigated via restricted maximum likelihood modelling and post-hoc tests. Differences between groups were explained by stepwise linear regressions (p<0.05). </p> <p><b>RESULTS</b></p> <p>Among 303 individuals with type 1 diabetes (age 33 [22; 43] years, 93 females, BMI 23.6 [22; 26] kg/m<sup>2</sup>, HbA<sub>1c</sub> 6.9 [6.2; 7.7]%; 52 [44; 61] mmol/mol), peak oxygen uptake (32.55 [26.49; 38.72] vs. 42.67 ± 10.44) (mL/kg/min), peak heart rate (179 [170; 187] vs. 184 [175; 191]) (bpm) and peak power (216 [171; 253] vs. 245 [200; 300]) (Watt) were lower in comparison to 308 controls without type 1 diabetes (all p<0.001). Individuals with type 1 diabetes displayed an impaired degree and direction of the heart rate to performance curve compared against controls without type 1 diabetes (0.07 [-0.75; 1.09] vs. 0.66 [-0.28; 1.45] (p<0.001)). None of the exercise physiological responses were associated with HbA<sub>1c</sub> in individuals with type 1 diabetes.</p> <p><b>CONCLUSIONS</b></p> <p>Individuals with type 1 diabetes show altered responses to CPX testing, which cannot be explained by HbA<sub>1c</sub>. Intriguingly, the participants in our cohort consisted of people with recent-onset type 1 diabetes, heart rate dynamics were altered during CPX testing. </p>


2013 ◽  
Vol 7 (3) ◽  
pp. 17-29 ◽  
Author(s):  
Ladislav Baloun ◽  
Martin Kudláček ◽  
Ondřej Ješina

The purpose of this work is the presentation of the questionnaire of the Self-Efficacy Scale for Physical Education Teacher Education Majors towards the Children with Disabilities (SE-PETE-D), which should be used in the future to identify self-efficacy of the students of the teacher training in physical education. At the same time will be also presented the results of a pilot study of standardization of this questionnaire in the conditions of the Czech environment. A key concept of questionnaire is self-efficacy. and introduced its the Canadian-American psychologist Albert Bandura (1997). Apilot study and comparison encompass bachelor students took part in the teaching of physical education, students of bachelor studies in adapted physical education and students of the follow-up master degree in adapted physical education. The results show that students of bachelor studies in adapted physical education have higher self-efficacy than students of bachelor studies in physical education.


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