All-out treadmill exercise performance, neuroticism and anxiety in athletes of different sports and physical fitness

1993 ◽  
Author(s):  
Katalin Kudar ◽  
Mate Petrekanits
Keyword(s):  
Physical Fitness ◽  
Exercise Performance ◽  
Treadmill Exercise

scholarly journals Closure of outpatient cardiac rehabilitation during the first COVID-19 lockdown in Austria in spring 2020 resulted in deteriorating physical exercise capacity: a mixed-methods study

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
S T Kulnik ◽  
M Sareban ◽  
I Hoeppchen ◽  
S Droese ◽  
A Egger ◽  
...  
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Cardiovascular Risk ◽  
Exercise Training ◽  
Physical Fitness ◽  
Exercise Capacity ◽  
Exercise Performance ◽  
Cycle Ergometer ◽  
Mixed Methods Study ◽  
Maximal Cycle

Abstract Background Group-based cardiac rehabilitation (CR) has inevitably been disrupted by COVID-19-related public health measures, increasing the risk of deterioration in modifiable risk factors for patients with cardiovascular disease (CVD). Purpose To examine the impact of CR closure during the first COVID-19-related national lockdown in Austria in spring 2020 on patients' maintenance of physical activity, physical fitness levels, and cardiovascular risk profile; and to describe the patient experience of lack of group-based CR training due to COVID-19. Methods This mixed-methods study recruited patients from an outpatient CR centre in Austria during summer 2020. Eligibility criteria were regular attendance at weekly group-based exercise training at the centre until the COVID-19-related lockdown in March 2020; pre-lockdown completion of a maximal cycle ergometer test; no contraindications for maximal exercise testing; and no new complaints limiting exercise performance. Participants underwent post-lockdown quantitative assessment of physical fitness (maximal cycle ergometer testing, submaximal cycle ergometer training session at individual pre-lockdown settings) and cardiovascular risk status. These were compared with pre-lockdown data from medical records. Participants gave qualitative interviews about their experience of maintaining exercise during lockdown. Interviews were audio-recorded, transcribed, coded, and interpreted using framework analysis. Results Twenty-eight (57%) of 49 eligible patients were recruited, 1 withdrew, and 27 completed all study procedures. Two participants were excluded from analysis of physical fitness data, due to subsequent diagnosis of new complaints limiting exercise performance. Mean (SD) age was 69 (7.4) years. Six (22%) were female. Median (IQR) time since first CVD event was 8 (5.5, 9) years. In maximal ergometer testing, 14 (56%) had deteriorated, 10 (40%) were unchanged, and 1 (4%) had improved post-lockdown. At group level, power was significantly reduced (maximal ergometer testing, submaximal ergometer training), whereas CVD risk factors remained unchanged from pre- to post-lockdown (table 1). Qualitative analysis corroborated the negative impact of the closure of CR classes (table 2). Conclusions This patient cohort was heterogeneous with respect to physical activity levels and exercise capacity, yet overall motivated and experienced in exercise training, having regularly attended training sessions at the centre before the lockdown. Despite individually seeking out alternative exercise options during lockdown, group average exercise capacity deteriorated even in this motivated and exercise-conscious group. This highlights the importance of providing group-based opportunities for supervised high intensity training for patients who engage well in such a setting, and the detrimental impact of disruption to this type of CR service. FUNDunding Acknowledgement Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Ludwig Boltzmann Gesellschaft COVID-19 Support Measure: Open Innovation in Science (OIS) Research Enrichment Fund

Physical Fitness Level For Improving Mat Exercise Performance In Child And Youth

2005 ◽  
Vol 37 (Supplement) ◽  
pp. S21
Author(s):  
Takahiko Nishijima ◽  
Takahiro Nakano ◽  
Shinji Takahashi ◽  
Koya Suzuki ◽  
Hiroshi Yamada ◽  
...  
Keyword(s):  
Physical Fitness ◽  
Exercise Performance ◽  
Fitness Level

Effects of magnesium on exercise performance and plasma glucose and lactate concentrations in rats using a novel blood-sampling technique

2009 ◽  
Vol 34 (6) ◽  
pp. 1040-1047 ◽  
Author(s):  
Ying-Ju Chen ◽  
Hsuan-Ying Chen ◽  
Ming-Fu Wang ◽  
Mei-Hsiang Hsu ◽  
Woei-Ming Liang ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Exercise Performance ◽  
Treadmill Exercise ◽  
Sampling Technique ◽  
Blood Sampling ◽  
Control Group ◽  
Sprague Dawley ◽  
Sampling Device ◽  
Blood Samples ◽  
Adequate Diet

Repeated blood sampling in rodents is often necessary and difficult. Magnesium has been touted as an agent for enhancing physical activity. An auto-blood-sampling device coupled with a microdialysis analyzer was developed to determine blood glucose and lactate concentrations in rats subjected to treadmill exercise. The effects of magnesium on exercise performance and blood energy metabolism were also evaluated. Sprague–Dawley rats fed a magnesium-adequate diet were randomly assigned to 2 experimental groups. Exercise performance was evaluated at 3 treadmill speeds (10, 15, and 20 m·min–1) with or without magnesium administration (90 mg·kg–1, intraperitoneal) in the first experiment. In the other experiment, each rat was fitted with a catheter in the jugular vein for collection of blood samples during the treadmill exercise at a speed of 20 m·min–1. Exercise performance was significantly higher at the lower speed of 10 m·min–1 in the control group. In addition, exercise performance was significantly enhanced only at 20 m·min–1 in the magnesium-sulfate-treated group when compared with the control group. Blood samples were collected every 15 min. Glucose concentrations increased significantly and then declined immediately after completion of the exercise task at 20 m·min–1 in both groups. However, glucose concentrations increased immediately after administration of magnesium and increased further during exercise when compared with those of the control group. Findings from a repeated blood-sampling assay suggest that increased blood glucose contributes to enhanced exercise performance by rats injected intraperitoneally with magnesium.

scholarly journals (−)-Epicatechin administration and exercising skeletal muscle vascular control and microvascular oxygenation in healthy rats

2013 ◽  
Vol 304 (2) ◽  
pp. H206-H214 ◽  
Author(s):  
Steven W. Copp ◽  
Tadakatsu Inagaki ◽  
Michael J. White ◽  
Daniel M. Hirai ◽  
Scott K. Ferguson ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Blood Flow ◽  
Exercise Performance ◽  
Vascular Function ◽  
Treadmill Exercise ◽  
Muscle Blood Flow ◽  
Endurance Capacity ◽  
Skeletal Muscle Blood Flow ◽  
Exercise Endurance ◽  
Microvascular Oxygenation

Consumption of the dietary flavanol (−)-epicatechin (EPI) is associated with enhanced endothelial function and augmented skeletal muscle capillarity and mitochondrial volume density. The potential for EPI to improve peripheral vascular function and muscle oxygenation during exercise is unknown. We tested the hypothesis that EPI administration in healthy rats would improve treadmill exercise performance secondary to elevated skeletal muscle blood flow and vascular conductance [VC, blood flow/mean arterial pressure (MAP)] and improved skeletal muscle microvascular oxygenation. Rats received water (control, n = 12) or 4 mg/kg EPI ( n = 12) via oral gavage daily for 24 days. Exercise endurance capacity and peak O2 uptake (V̇o2 peak) were measured via treadmill runs to exhaustion. MAP (arterial catheter) and blood flow (radiolabeled microspheres) were measured and VC was calculated during submaximal treadmill exercise (25 m/min, 5% grade). Spinotrapezius muscle microvascular O2 pressure (Po2mv) was measured (phosphorescence quenching) during electrically induced twitch (1 Hz) contractions. In conscious rats, EPI administration resulted in lower (↓∼5%) resting ( P = 0.03) and exercising ( P = 0.04) MAP. There were no differences in exercise endurance capacity, V̇o2 peak, total exercising hindlimb blood flow (control, 154 ± 13; and EPI, 159 ± 8 ml·min−1·100 g−1, P = 0.68), or VC (control, 1.13 ± 0.10; and EPI, 1.24 ± 0.08 ml·min−1·100 g−1·mmHg−1, P = 0.21) between groups. Following anesthesia, EPI resulted in lower MAP (↓∼16%) but did not impact resting Po2mv or any kinetics parameters ( P > 0.05 for all) during muscle contractions compared with control. EPI administration (4 mg·kg−1·day−1) improved modestly cardiovascular function (i.e., ↓MAP) with no impact on exercise performance, total exercising skeletal muscle blood flow and VC, or contracting muscle microvascular oxygenation in healthy rats.

Treadmill Exercise Performance by the Aging Irradiated Rat

1967 ◽  
Vol 30 (4) ◽  
pp. 714 ◽  
Author(s):  
D. C. Jones ◽  
G. K. Osborn ◽  
D. J. Kimeldorf
Keyword(s):  
Exercise Performance ◽  
Treadmill Exercise

Acquisition of cardiovascular kinetics via treadmill exercise – A tool to monitor physical fitness during space missions

2021 ◽  
Author(s):  
Jessica Koschate ◽  
Uwe Hoffmann ◽  
Nataliya Lysova ◽  
Lutz Thieschäfer ◽  
Uwe Drescher ◽  
...  
Keyword(s):  
Physical Fitness ◽  
Treadmill Exercise ◽  
Space Missions

Body Mass Index And Association Of Psychological Stress With Exercise Performance In Military Members: The Cardiorespiratory Fitness And Hospitalization Events In Armed Forces (CHIEF) Study

2021 ◽  
Vol 21 ◽  
Author(s):  
Ko-Huan Lin ◽  
Fang-Ying Su ◽  
Szu-Nian Yang ◽  
Ming-Wei Liu ◽  
Chung-Cheng Kao ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Physical Fitness ◽  
Psychological Stress ◽  
Body Mass ◽  
Exercise Performance ◽  
Rating Scale ◽  
Normal Weight ◽  
Analysis Of Covariance ◽  
The Impact ◽  
The Relationship

Aims: To investigate the influence of body mass index (BMI) on the association between psychological stress and physical fitness. Background: Both obesity and psychological stress reduce exercise performance. Objective: It is unknown whether obesity may modify the relationship. Background: Both obesity and psychological stress reduce exercise performance. Objective: It is unknown whether obesity may modify the relationship. Methods: A population of 4,080 military subjects in Taiwan was divided to three groups according to the BMI ≥27.0 kg/m2 (obesity), 24.0-26.9 kg/m2 (overweight) and 18.5-23.9 kg/m2 (normal weight). Normal, slight, and great psychological stress was evaluated by the Brief Symptoms Rating Scale (BSRS-5) score ≤5, 6-9, and ≥10, respectively. Aerobic and anaerobic fitness were respectively evaluated by time for a 3000-meter run and numbers of 2-minute sit-ups and 2-minute push-ups. Analysis of covariance (ANCOVA) with adjustments for age and sex was used to determine the relationship. Results: The mean time (sec) for a 3000-meter run (standard error) under slight and great stress differed from that under normal stress in the normal weight (881.0 (11.0) and 877.9 (5.8) vs. 862.2 (1.7), p=0.089 and 0.0088, respectively) and in the obesity (928.1 (16.8) and 921.8 (10.7) vs. 895.2 (1.6), p=0.054 and 0.016, respectively), while the differences were not significant in the overweight (877.1 (12.7) and 877.5 (7.1) vs. 867.1 (2.1), both p >0.5). The impacts of the BMI on 2-minute sit-ups had a similar pattern with that on a 3000-meter run whereas the impact of the BMI on 2-minute push-ups was insignificant. Conclusions: Mental stress may not affect physical fitness in overweight military personnel. The mechanism is not clear and should be further investigated.

Genetic variability in forced and voluntary endurance exercise performance in seven inbred mouse strains

2002 ◽  
Vol 92 (6) ◽  
pp. 2245-2255 ◽  
Author(s):  
Imanuel Lerman ◽  
Brooke C. Harrison ◽  
Kalev Freeman ◽  
Timothy E. Hewett ◽  
David L. Allen ◽  
...  
Keyword(s):  
Exercise Performance ◽  
Treadmill Exercise ◽  
Inbred Mouse ◽  
Cardiac Contractility ◽  
Strain Differences ◽  
Voluntary Exercise ◽  
Mouse Strains ◽  
Apparent Relationship ◽  
Molecular Indicators ◽  
Voluntary Wheel

The goal of this study was to characterize the genetic contribution to both forced and voluntary exercise performance and to determine whether performance in these two paradigms is controlled by similar genetic influences. There were marked strain differences in treadmill exercise performance, with Swiss Webster (SW) and FVB/NJ mice showing elevated performance and C57BL/6J animals showing decreased performance compared with all other strains. There was no apparent relationship between treadmill performance and voluntary wheel performance, with the exception of SW mice, which demonstrated high performances on both the treadmill and the voluntary wheel. Numerous properties were measured to attempt to understand the basis for these differences in exercise performance. DBA/1J and SW mice exhibited significantly greater cardiac contractility than all other analyzed strains. Conversely, BALB/cByJ mice exhibited significantly reduced cardiac contractility compared with all other strains. Expression of molecular indicators of hypertrophy (atrial natriuretic factor and β-myosin heavy chain) was significantly elevated in DBA/2J myocardium compared with all other analyzed strains.

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