Temat: exercise - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Obesity: reversible biological adaptation or disease?
Autorzy:: Pilis, Karol
Pilis, Anna
Stec, Krzysztof
Michalski, Cezary
Zych, Michał
Buchta, Jacek
Pilis, Wiesław
Tematy:: body weight
cardio-respiratory fitness
exercise
exercise capacity
obesity; Pokaż więcej
Wydawca:: PPHU Projack Jacek Wąsik
Powiązania:: https://bibliotekanauki.pl/articles/1032032.pdf Link otwiera się w nowym oknie
Opis:: Introduction: Obesity is an unfavorable state of health as a result of which come in the initial adaptation, that could gradually transform into specific disease condition. Objectives: The aim of the study was to assess the degree of middle-aged men adaptation to obesity in terms of somatic changes, exercise capacity and cardiopulmonary fitness. Materials and Methods: The study involved 12 obese middle-aged men (OG) - BMI = 34.32 ± 4.11 kg/m2. The control group (CG) consisted of 12 non-obese middle-aged men- BMI = 23.72 ± 1.83 kg/m2,with similar body height (BH) to OG. After recording somatic and physiological data at rest, participants were subjected to the bicycle ergometer test (BT) gradually increasing intensity. During the BT aerobic power (AP) was recorded and analyzed along with parameters characterizing the efficiency of the circulatory and respiratory systems at anaerobic threshold (AT) and the maximum load (ML). Results: This study has shown that obese men have a higher body mass (BM), a higher content of fat (BF), an increased lean body mass (FFM) and a higher content of water (TBW) than CG (p <0.001). Absolute and relatively expressed in relation to the FFM respondents’ values of AP and VO2 were similar in both groups and after taking under the consideration the body weight, they were significantly lower in OG than in the CG. Furthermore, adverse effects have been observed that emerged on some cardiovascular and respiratory variables at rest in case of OG; these effects did not occur during physical exertion. Conclusions: Beyond negative changes occurring obesity in the first stage led to favorable somatic adaptation that entails an increase of FFM in OG, which gives a positive impact on the capacity of physical work of obese men and produces a beneficial effect on the resulting compensation impairment in the respiratory and circulatory systems of these subjects.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Effect of repeated cold water swimming exercise on adaptive changes in body weight in older rats
Autorzy:: Bryczkowska, Iwona
Baranowska-Bosiacka, Irena
Lubkowska, Anna
Tematy:: body weight
cold-acclimation
exercise training
rats
swimming exercise; Pokaż więcej
Wydawca:: Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Powiązania:: https://bibliotekanauki.pl/articles/1055019.pdf Link otwiera się w nowym oknie
Opis:: The aim of this study was verification whether an 8-week-long swimming exercise training would induce adaptive changes in body weight in rats and whether possible changes would depend on aquatic environment temperature and animal sex. The exercisetrained groups swam 4 minutes a day, five days a week during eight week of housing. Exercise was performed by swimming in glass tanks containing tap water maintained according to group at 5 ±2°C (cold group) and 36 ±2°C (thermal neutral group). Before and after each week of the experiment, rats were weighed. When comparing the nature of changes in the body weight of rats exposed to swimming exercise training in cold water, attention should be paid to their dependence on sex. There were statistically significant changes in the nature of changes in body weight between male rats and female rats of the cold group (5°C) as early as experimental week 2 until the end of the experiment (p < 0.001). Interestingly, the females exposed to swimming exercise training at 5°C were the only group in which an increase in body weight occurred during experimental week 8 in relation to baseline values.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The Borg Scale at high altitude
Autorzy:: Küpper, Thomas
Heussen, N.
Morrison, Audry
Schöffl, Volker
Basnyat, Buddha
Hillebrandt, David
Milledge, Jim
Steffgen, Jürgen
Meier, Beate
Tematy:: Borg Scale
perceived exertion
high altitude
exercise physiology
exercise testing; Pokaż więcej
Wydawca:: Państwowa Wyższa Szkoła Zawodowa w Tarnowie
Powiązania:: https://bibliotekanauki.pl/articles/2098238.pdf Link otwiera się w nowym oknie
Opis:: Introduction: The Borg Scale for perceived exertion is well established in science and sport to keep an appropriate level of workload or to rate physical strain. Although it is also often used at moderate and high altitude, it was never validated for hypoxic conditions. Since pulse rate and minute breathing volume at rest are increased at altitude it may be expected that the rating of the same workload is higher at altitude compared to sea level.Material and methods: 16 mountaineers were included in a prospective randomized design trial. Standardized workload (ergometry) and rating of the perceived exertion (RPE) were performed at sea level, at 3,000 m, and at 4,560 m. For validation of the scale Maloney-Rastogi-test and Bland-Altmann-Plots were used to compare the Borg ratings at each intensity level at the three altitudes; p < 0.05 was defined as significant.Results: In Bland-Altmann-Plots more than 95% of all Borg ratings were within the interval of 1.96 x standard deviation. There was no significant deviation of the ratings at moderate or high altitude. The correlation between RPE and workload or oxygen uptake was weak.Conclusion: The Borg Scale for perceived exertion gives valid results at moderate and high altitude – at least up to about 5,000 m. Therefore it may be used at altitude without any modification. The weak correlation of RPE and workload or oxygen uptake indicates that there should be other factors indicating strain to the body. What is really measured by Borg’s Scale should be investigated by a specific study.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Sweat iron concentration during 4-week exercise training
Autorzy:: Saran, T.
Zawadka, M.
Chmiel, S.
Mazur, A.
Tematy:: exercise
iron
sweat; Pokaż więcej
Wydawca:: Instytut Medycyny Wsi
Powiązania:: https://bibliotekanauki.pl/articles/2081835.pdf Link otwiera się w nowym oknie
Opis:: Introduction. One possible way of iron loss is sweating. It is unclear how physical activity performed by untrained individuals affects the iron status in sweat. Objective. The purpose of this study was to analyse iron concentration in sweat during 4-week exercise training to determine the changes in iron excretion during follow-up exercises. Materials and method. 43 untrained volunteers participated in the study, 29 of whom completed the full exercise programme. The training programme consisted of exercises on a cycle ergometer and cross-trainer. In the first week, participants exercised for 8 minutes on each device, in the second for 10 minutes, and in the third and fourth weeks they exercised for 15 min on each device. Intensity was submaximal and defined as 85% of maximal heart rate. A sterile sweat patch was placed on the skin between shoulder blades. Results. Concentration of iron on the first and the fifteenth day of exercises was comparable and statistically insignificant. Iron concentration was highly increased on the last day of training in comparison with first (p<0.001) and fourteenth day (p<0.006). The median of iron concentration in 29 samples on the first day of sampling was 21.2 ppb, in the fifteenth – 52.5 ppb, and on the twenty-eighth day – 286.2 ppb. In relation with the sodium concentration, the iron content was also increased on the twenty-eighth day of the training programme (p<0.005). Conclusions. Iron sweat loss significantly increased during the 4-week exercise programme. A possible explanation may be improvement in the thermoregulation mechanism and secretory activity of sweat glands. Iron sweat loss may be an indicator of iron deficiency observed in active individuals.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Cardiovascular response to exercise in hypertension – clinical characteristics of ASSECURE study participants
Reakcja układu sercowo-naczyniowego w trakcie wysiłku fizycznego u chorych z nadciśnieniem tętniczym – kliniczna charakterystyka pacjentów w badaniu ASSECURE
Autorzy:: Kurpaska, Małgorzata
Krzesiński, Paweł
Gielerak, Grzegorz
Uziębło-Życzkowska, Beata
Banak, Małgorzata
Maciorowska, Małgorzata
Skrobowski, Andrzej
Stańczyk, Adam
Piotrowicz, Katarzyna
Tematy:: arterial hypertension
cardiopulmonary exercise test
exercise capacity
heart failure
impedance cardiography; Pokaż więcej
Wydawca:: Medical Communications
Powiązania:: https://bibliotekanauki.pl/articles/1035510.pdf Link otwiera się w nowym oknie
Opis:: Aim: Arterial hypertension leads to progressive cardiovascular dysfunction and heart failure. The aim of the study was to assess exercise capacity in hypertensives with the use of a cardiopulmonary exercise test, impedance cardiography and 6-minute walk test with special emphasis on haemodynamic response to exercise workload. Methods: 114 patients (53.5% women, 55.7 ± 9.1 years) were evaluated for reported symptoms, N-terminal pro-B-type natriuretic peptide (NTproBNP) levels, echocardiographic parameters and exercise capacity with 6-minute walk test, cardiopulmonary exercise test and haemodynamic parameters (by means of impedance cardiography). Results: 50% of patients had reported symptoms of impaired exercise tolerance, mostly dyspnoea on exertion (37.7%). NTproBNP levels exceeded 125 pg/mL in 19.3% of patients. Left ventricular diastolic dysfunction was found in 8.8% and heart failure was diagnosed in 6.2% of patients. A wide range of peak oxygen uptake (peak VO2) and 6-minute walk test distance was observed: 19.4 ± 5.2 mL/min/kg and 526.7 ± 112.0 m, respectively. A major proportion of patients demonstrated decreased exercise capacity parameters: 56.1% achieving peak VO2 < 22 mL/min/m2; 45.9% achieving peak VO2 < 80% of the predictive value; 37.3% achieving 6-minute walk test distance shorter than the predicted values. The impedance cardiography recorded at peak exercise: heart rate 147.2 ± 22.4 bpm, stroke volume 110.2 ± 21.8 mL, cardiac output 15.9 ± 4.2 L/min, peak systemic vascular resistance 587.4 ± 168.0 dyn.s/cm5. Conclusions: Although a very small proportion of patients with uncomplicated arterial hypertension meet the criteria for being diagnosed with heart failure, the symptoms of impaired exercise tolerance as well as abnormal results of objective exercise capacity assessments are quite common in these patients.
Cel: Nadciśnienie tętnicze prowadzi do postępującej dysfunkcji układu krążenia i niewydolności serca. Celem pracy była ocena wydolności fizycznej chorych z nadciśnieniem tętniczym z wykorzystaniem sercowo-płucnego testu wysiłkowego, wysiłkowej kardiografii impedancyjnej oraz 6-minutowego testu marszowego, ze szczególnym uwzględnieniem odpowiedzi hemodynamicznej na obciążenie wysiłkiem. Metody: 114 chorych (53,5% kobiet, wiek 55,7 ± 9,1 roku) oceniono pod względem zgłaszanych objawów, stężenia N-końcowego propeptydu natriuretycznego typu B (N-terminal pro-B-type natriuretic peptide, NTproBNP), wykładników echokardiograficznych oraz wydolności fizycznej za pomocą 6-minutowego testu marszowego i sercowo-płucnego testu wysiłkowego, a także parametrów hemodynamicznych za pomocą wysiłkowej kardiografii impedancyjnej. Wyniki: W badanej grupie 50% osób zgłaszało obniżenie tolerancji wysiłku, w tym 37,7% duszność wysiłkową. U 19,3% chorych stężenie NTproBNP przekroczyło wartość 125 pg/ml. Dysfunkcję rozkurczową stwierdzono u 8,8% z nich, ale kryteria rozpoznania niewydolności serca z zachowaną frakcją wyrzutową spełniło jedynie 6,2%. Obserwowano szeroki zakres szczytowego pochłaniania tlenu (peak VO2) i dystansu 6-minutowego testu marszowego, odpowiednio 19,4 ± 5,2 ml/min/kg i 526,7 ± 112,0 m. Wysoki odsetek badanych prezentował obniżone parametry wydolności fizycznej: 56,1% osiągnęło peak VO2 < 22 ml/min/m2, a 45,9% – peak VO2 < 80% wartości predykcyjnej; 37,3% badanych nie osiągnęło należnej wartości dystansu 6-minutowego testu marszowego. W wysiłkowej kardiografii impedancyjnej zarejestrowano na szczycie wysiłku: częstość rytmu serca 147,2 ± 22,4/min, objętość wyrzutową 110,2 ± 21,8 ml, pojemność minutową 15,9 ± 4,2 l/min, opór obwodowy 587,4 ± 168,0 dyn.s/cm5. Wnioski: Objawy obniżonej tolerancji wysiłku i nieprawidłowe wyniki obiektywnej oceny wydolności fizycznej u pacjentów z niepowikłanym nadciśnieniem tętniczym są częste, chociaż niewielki odsetek tych chorych spełnia kryteria diagnostyczne niewydolności serca.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Acute aerobic exercise enhances cortical connectivity between structures involved in shaping mood and improves self-reported mood : an EEG effective-connectivity study in young male adults
Autorzy:: Wyczesany, Mirosław
Szyguła, Zbigniew
Nowak, Izabela
Maciejczyk, Marcin
Ligęza, Tomasz
Opis:: There seems to be a general consensus among researchers that acute aerobic exercise (exercise hereafter) improves mood, but the neural mechanisms which drive these effects are far from being clear. The current study investigated the cortical connectivity patterns that underlie changes in mood after exercise. Twenty male adults underwent three different experimental protocols that were carefully controlled in terms of underlying metabolism and were administered in a randomized order: moderate-intensity continuous exercise, high-intensity interval exercise, and seated rest condition. Before and after each experimental protocol, we collected data on the participants' mood using the UMACL questionnaire and recorded their resting-state EEG. We focused on the effective connectivity patterns exerted by the dorso-lateral prefrontal cortex (dlPFC) over the temporal region (TMP), as these are important cortical structures involved in shaping mood. The cortical connectivity patterns in the resting-state EEG were evaluated using the directed transfer function (DTF), which is an autoregressive effective connectivity method. The results showed that both moderate-intensity exercise and high-intensity interval exercise improved participants' self-reported mood. Crucially, this improvement was accompanied by stronger influences of dlPFC over TMP. The observed changes in the effective connectivity patterns between dlPFC and TMP might help to better understand the effects of exercise on mood.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 7.

Tytuł:: Contrasting response of haematological variables between long-term training and short exercise bouts in zebra finches (Taeniopygia guttata)
Autorzy:: Bury, Agata
Niedojadło, Jowita
Bauchinger, Ulf
Sadowska, Edyta
Cichoń, Mariusz
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 8.

Tytuł:: Cardiovascular system adaptability to exercise according to morphological, temporal, spectral and correlation analysis of oscillograms
Autorzy:: Viktorovych Vakulenko, Dmytro
Petrovych Martseniuk, Vasyl
Oleksiyvna Vakulenko, Liudmyla
Romanovych Selskyy, Romanovych Selskyy
Kutakova, Oksana
Gevko, Olena
Kadobnyj, Taras
Tematy:: cardiovascular system
exercise
regeneration; Pokaż więcej
Wydawca:: Stowarzyszenie Przyjaciół Medycyny Rodzinnej i Lekarzy Rodzinnych
Powiązania:: https://bibliotekanauki.pl/articles/551536.pdf Link otwiera się w nowym oknie
Opis:: Background. Diseases of the cardiovascular system (CVS) are among the most common diseases of humankind (WHO). Monitoring of blood pressure (BP) is an accessible method for evaluating global hemodynamic processes. The functional reserves of the circulatory system are traditionally determined by the use of functional loading trials and tests. Objectives. The aim of the study is to enhance the information collected during the blood pressure measurement process by studying the levels of adaptation of the CVS to physical activity with morphological, temporal, spectral and correlation analyses of arterial oscillography (AO). Material and methods. In 178 healthy individuals aged 18–20 years, arterial oscillograms were recorded during blood pressure measurement and correlations of the functional reserve of the cardiovascular system at various stages of adaptation to a Ruffier test were investigated. Results. The proposed methods of AO analysis significantly increase the informativeness of the procedure for blood pressure measurement, provide an opportunity to conduct a visual analysis of AOs and to assess the state of the cardiovascular system, its reserve capabilities and its ways of adapting to shoulder compression at rest, after physical load and in the process of recovery. Conclusions. Using the information technologies proposed by the authors of the morphological, temporal, spectral and correlation analysis of arterial oscillograms, their evaluation and clinical interpretation significantly increase the informativeness of the blood pressure measuring process. They can be used for early detection of pre-morbid conditions and functional blood circulation reserves, which will help the physician to more effectively plan a preventative, diagnostic and therapeutic process.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: The Aporetic Method in Plotinus’ Enneads
Autorzy:: Stróżyński, Mateusz
Tematy:: Plotinus
spiritual exercise
aporia; Pokaż więcej
Wydawca:: Uniwersytet im. Adama Mickiewicza w Poznaniu
Powiązania:: https://bibliotekanauki.pl/articles/1046767.pdf Link otwiera się w nowym oknie
Opis:: There seem to be two tendencies in the Plotinian scholarship concerning spiritual method of the Enneads. First is more general and the other more specific and focused on the analysis of the text. The paper follows the second type of study and attempts to present and analyze Plotinian use of aporia as a spiritual exercise. Traditionally aporia was used as a point of departure for philosophical discussion (e.g. by Aristotle) and sometimes Plotinus follows this tradition. But at other times he uses aporia as a point of arrival – he creates a painful tension due to the fact that discursive thought is unable to know the nature of the One (or, less frequently, also Intellect). The tension becomes a sort of spiritual labor in which the contemplation is born and the tension is released. Several passages from the Enneads are analyzed to show various uses of that method.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Effects of physical exercise on the motility of hands in patients operated because of Dupuytrens contracture in own material
Autorzy:: Deskur, Zbigniew
Deskur, Anna
Zawadzki, Maciej
Tematy:: Dupuytren's contracture
exercise
surgery; Pokaż więcej
Wydawca:: Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Powiązania:: https://bibliotekanauki.pl/articles/1055191.pdf Link otwiera się w nowym oknie
Opis:: The purpose of this study was to evaluate the effect of physical exercise on limited locomotion in the hands of patients who underwent surgery to correct Dupuytren's contracture. We studied the hands of 84 patients with Dupuytren's contracture aged from 30 to 84 years. In all patients, the contracture was removed by performing a partial fasciectomy. Physical exercises were carried out a week prior to surgery and during the postoperative period. Patients were divided into group I, in which the exercise was carried out under the supervision of the authors of this study and group II, in which exercises were performed sporadically and without professional supervision. Measurements were performed on all patients one week before surgery (A), 1 week after surgery (B) and 6 weeks after (C). The range of movement of fingers was measured using a goniometer. The average total loss of finger extension was evaluated, taking due account of the extension loss in the MCP, PIP and DIP joints of all fingers of the treated hand. Rehabilitation treatment included active and passive exercises; in more severe cases the treatment of choice was massage and special equipment to help bear flexion contracture. Test results were statistically analyzed. In all patients, there was an increase in mobility of the fingers. Patients taking part in physical exercise had significantly greater range of finger movement.
Dostawca treści:: Biblioteka Nauki

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