Wyniki wyszukiwania - Biblioteka Nauki

1

Cardiovascular Stress, Energy Expenditure and Subjective Perceived Ratings of Fire Fighters During Typical Fire Suppression and Rescue Tasks

100%

Bugajska J. , Zużewicz K. , Szmauz-Dybko M. , Konarska M.

International Journal of Occupational Safety and Ergonomics

|

2007

|

tom Vol. 13, No. 3

323--331

EN

The study determined physiological and psychophysical responses to fire fighters’ typical activities. Selfreported assessment of the most demanding fire fighting/rescue tasks were collected with a questionnaire. Then 19 voluntary fire fighters performed 3 simulated fire fighting/rescue tasks in protective clothing. Heart rate (HR), blood pressure and energy expenditure were measured; the rating of perceived exertion (RPE) was assessed with the Borg scale. The questionnaires showed that carrying out victims, fire suppression and resuscitation were classified as heavy load; climbing stairs with a hose as moderate load. According to RPE the subjects considered their effort during ladder climbing fairly light and only somewhat harder during stair climbing and carrying out injured people. The study demonstrated that typical fire fighting/rescue tasks were associated with high energy expenditure and imposed considerable cardiovascular stress. The Borg scale appeared not suitable for assessing perceived exertion in fire fighters during simulated tasks.

2

Ocena wydatku energetycznego na stanowisku pracy piekarza metodą chronometrażowo-tabelaryczną wg Lehmanna

100%

Prędecka A. , Węgrzyn M. , Sowa M. , Sulak E.

Zeszyty Naukowe SGSP / Szkoła Główna Służby Pożarniczej

|

2016

|

tom Nr 59 (3)

137--155

PL

Ocena obejmuje charakterystykę obciążenia fizycznego pracą, ze szczególnym uwzględnieniem wydatku energetycznego. Przedstawiono również opis metod, które umożliwiają wyliczenie wydatku energetycznego, główny nacisk kładąc na metodę chronometrażowo-tabelaryczną. Nawiązano również do wartości normatywów higienicznych dotyczących wydatku energetycznego obowiązujących w Polsce. W artykule przedstawiono wyniki pomiaru wydatku energetycznego na stanowisku roboczym – piekarz. Analizę tę wykonano dla mężczyzny oraz dla kobiety, pracujących w czasie tej samej zmiany roboczej (w godzinach 16:00–24:00). Pomiary wydatku energetycznego metodą chronometrażowo-tabelaryczną prowadziły niezależnie dwie osoby. Celem autorów było odniesienie uzyskanych wartości wydatku energetycznego do obowiązujących kryteriów normatywnych. Badania te umożliwiły również porównanie wydatku energetycznego obliczonego wyżej wymienioną metodą przez dwie osoby i przeanalizowanie, jakie są różnice w obliczonych wartościach oraz czym mogły być spowodowane.

EN

The article includes the characteristics of the load of physical work, especially energy expenditure. It also presents a description of the methods that allow to determinate the energy expenditure on the workplace, with the main emphasis on the chronometric-tabular analysis, which have been used in practice. It also refers to the values of hygienic standards on energy expenditure valid in Poland. The article presents the study on the energy expenditure at the – baker’s stand. The analysis was made for men and for women working during the same work shift. The measurements of energy expenditure with the chronometric-tabular analysis by Lehmann were conducted independently by two people. The aim of this study was to analyze the physical effort in order to compare it with the hygienic standards. The studies also allow to compare the energy expenditure calculated by the mentioned method by two independent persons and indicate what are the differences in the calculated values and what could have they been caused by.

3

Improvement of the Ergonomic Quality of the Work Process

100%

Lis T. , Nowacki K. , Łakomy K.

Multidisciplinary Aspects of Production Engineering

|

2018

|

tom Vol. 1, Iss. 1

703--710

EN

The improvement of production processes is currently one of the key elements of the company's competitiveness. In the pursuit of profit, the rationality of streamlined processes is not always taken into account, i.e. that both process needs and these of employees should be considered. Caring of the comfort of work, of adjusting the workplace to the employee is the main goal of ergonomic activity. On the level of implementation of ergonomic demands depends not only the quality and modernity of the products, but also the ergonomics of the workstation and the production process, forming the basis for better quality and more efficient work. The Improvement of the quality of the ergonomic workplace is possible on the basis of a properly conducted assessment, using a variety of tools. This article presents the evaluation and ergonomic analysis of the work process at four production workplaces, and then indicates the directions of changes. The analysis included elements of physical effort: energy expenditure, static load and traffic monotype. Traditional tools were used, such as OWAS, REBA, and also the use of quality assessment tools (Ishikawa diagram, Pareto-Lorenzo diagram) was proposed in order to suggest solutions to improve the ergonomic quality of the workstations under analysis.

4

Energy Expenditure and Intensity of Interactive Video Dance Games according to Health Recommendations

100%

Polechoński J. , Mynarski W. , Garbaciak W. , Fredyk A. , Rozpara M. , Nawrocka A.

Central European Journal of Sport Sciences and Medicine

|

2018

|

tom 24

|

nr 4

35-43

EN

Backround: The aim of this study was the assessment of energy expenditure (EE) and the intensity of physical activity (PA) of adult women during the interactive dance video game (IDVG) Dance Central on Xbox 360 Kinect in the context of health recommendations. Methods: Twenty eight intentionally selected women (mean ± SD age: 21.8±1.1 years, body height: 167.3±6.1cm, body mass: 59.3±5.9 kg, body mass index: 21.2±1.3) met the inclusion criteria and took part in to the experiment. Heart rate monitor, accelerometer, and pedometer were used as measurement tools. Participants performed the same easy dance routine three times (for a total of 10 min.). Trials consisted of imitating the motions presented by the virtual dancer. Results: The data from accelerometer and heart rate monitor were similar, and indicated the moderate intensity of interactive dance video game (IDVG) Dance Central. However, energy expenditure assessed by pedometer was significantly lower. Conclusion: IDVG Dance Central may be useful in increasing the daily dose of physical activity of adult women and meet the health-related recommendations provided its regular practice.

5

Cooling Suits, Physiological Response, and Task Performance in Hot Environments for the Power Industry

100%

Furtado A. L. , Craig B. N. , Chard J. T. , Zaloom V. A. , Chu H. W.

International Journal of Occupational Safety and Ergonomics

|

2007

|

tom Vol. 13, No. 3

227--239

EN

Heat stress on workers working outdoors in the power industry may result in fatigue and deterioration in task performance. This research collected and analyzed data on task performance of workers working indoors and outdoors with and without a cooling suit. The task performance was compared on the basis of heart rate, oxygen consumption, tympanic temperature, subjective responses, productivity, and error rates. Based on One-Way Analysis Of Variance (ANOVA) results, a significantly lower estimated working oxygen consumption was observed (p < .001) when the cooling suit was worn. The productivity was higher while workers wore the cooling suit as compared to no cooling suit (p = .011) whereas the error rates were significantly lower (p < .001). Also a significantly lower self-reported discomfort was observed in the neck and shoulders while working wearing the cooling suit (p = .004). This study concluded that wearing a cooling suit while working outdoors was associated with physiological benefits as well as improved task performance of the study participants.

6

Energy Cost of Resistance Exercises: an Uptade

100%

Reis V. , Júnior R. , Zajac A. , Oliveira D.

Journal of Human Kinetics

|

2011

|

tom 29A

|

nr Special Issue

33-39

EN

The use of resistance exercises and of typical strength training methods have been progressively used to control body mass and to promote fat mass loss. The difficulties involved in the energy cost calculation during strength training are associated with the large amount of exercises and their several variations. Mean values between ≈3 and 30 kcal·min-1 are typically reported but our studies indicate that it may attain values as high as 40 kcal·min-1 in exercises which involve a large body mass. Therefore, in our opinion, the next step in research must be the isolated study of each of the main resistance exercises. Since the literature is scarce and that we do consider that the majority of the studies present severe limitations, the aim of this paper is to present a critical analysis of the energy cost estimation methods and provide some insights that may help to improve knowledge on resistance exercise. It seems necessary to rely on the expired O2 measurements to quantify aerobic energy. However, it is warranted further attention on how this measure is performed during resistance exercises. In example, studies on the O2 on-kinetics at various conditions are warranted (i.e. as a function of intensity, duration and movement speed). As for anaerobic lactic energy, it is our opinion that both the accumulated oxygen deficit and the blood lactate energy equivalent deserve further studies; analyzing variations of each method as an attempt to establish which is more valid for resistance exercise. The quantification of alactic anaerobic energy should be complemented by accurate studies on the muscle mass involved in the different resistance exercises. From the above, it is concluded that knowledge on the energy cost in resistance exercises is in its early days and that much research is warranted before appropriate reference values may be proposed.

7

Oxygen Uptake and Heart Rate Kinetics after Different Types of Resistance Exercise

100%

Vianna J. M. , Werneck F. Z. , Coelho E. F. , Damasceno V. O. , Reis V. M.

Journal of Human Kinetics

|

2014

|

tom 42

|

nr 1

235-244

EN

Oxygen uptake (VO2) and heart rate (HR) kinetics after exercise are important indicators of fitness and cardiovascular health. However, these variables have been little investigated in resistance exercise (RE). The current study compared post-exercise kinetics of VO2 and the HR among different types of REs. The study included 14 males (age: 26.5±5.4 years, body mass: 80.1±11.4 kg, body height: 1.77±0.07 m, fat content: 11.3±4.6%) with RE experience. Dynamic muscle strength was measured using one repetition maximum (1RM) with regard to the half-squat, bench press, pull-down, and triceps pushdown exercises. The participants performed a maximum number of repetitions at 80% of 1RM for each exercise, separated by a recovery period of 60 minutes. VO2 was measured using ergospirometry. VO2 and HR kinetics were assessed using the time constant of the recovery curves, and excess oxygen consumption (EPOC) was calculated afterward. Significant differences were not observed across the exercises with regard to VO2 kinetics. However, the half-squat exercise elicited a greater EPOC than the bench press and triceps pushdown exercises (p<.05). HR kinetics was slower for the half-squat exercise than for the other exercises (p<.05). These findings confirm that the type of RE influences both the cardiac autonomic response post-exercise and EPOC, but not VO2 kinetics

8

Indirect calorimetry in the assessment of the energy requirement in overweight and obese women

100%

Lange E. , Głąbska D. , Włodarek D.

Advances in Science and Technology. Research Journal

|

2013

|

tom Vol. 7, nr 20

91--97

EN

Individual total energy expenditure may be calculated as a sum of basal energy requirement and energy expenditure associated with physical activity. Measurement of basal energy requirement is not often conducted in dietetic practice, but may be applied using indirect calorimetry. The aim of the analysis was to present the possibilities of using the Fitmate PRO monitor in the assessment of resting metabolic rate and basal energy expenditure with a method of indirect calorimetry in a group of 91 overweight and obese women in various age. The mean results of the resting metabolic rate measured with method of indirect calorimetry using the Fitmate PRO monitor did not differ in the age groups of overweight and obese women. The results of the resting metabolic rate measured with method of indirect calorimetry using the Fitmate PRO monitor were correlated with body mass, height, fat mass, muscle mass and waist circumference. The Fitmate PRO monitor may be a valuable tool in everyday dietetic practice to assess the basal energy expenditure with method of indirect calorimetry in a group of overweight and obese women.

9

Comparison of Accuracy of Various Non-Calorimetric Methods Measuring Energy Expenditure at Different Intensities

100%

Durkalec-Michalski K. , Woźniewicz M. , Bajerska J. , Jeszka J.

Human Movement

|

2013

|

tom 14

|

nr 2

161-167

EN

Purpose. The purpose of the study was to evaluate the accuracy of three non-calorimetric methods’ measurements of energy expenditure (EE) in laboratory conditions and to compare the results obtained by each method in free-living condition in a group of adult subjects. Methods. Measurement was performed on 20 individuals aged 19-39 years. An assessment of EE at different intensities of physical activity was conducted by: monitoring heart rate with a S-610 Polar Sport Tester (HRM), measuring body movement by an ActiGraph GT1M accelerometer (AM), and recording METs (MR) by a physical activity questionnaire, for different activities (leisure and exercise) at various intensities in laboratory and free-living conditions. Indirect calorimetry (Cosmed K4b2 respirometer) was used as a reference standard. Results. The most reliable tool for EE assessment was HRM (100% accurate). AM overestimated EE (about 60%) for activity at moderate-intensity and underestimated EE (about 40%) at vigorous-intensity. MR overestimated the results, with measurement errors increasing with an increase in physical activity intensity (about 40-120%). Conclusions. Although AM and MR provided less accurate results than HRM in laboratory conditions, there were no significant differences between the three methods (HRM, AM and MR) when total daily energy expenditure was calculated for the participants in free-living condition.

10

Evaluation of Aerobic Capacity and Energy Expenditure in Folk Dancers

100%

Maciejczyk M. , Feć A.

Human Movement

|

2013

|

tom 14

|

nr 1

76-81

EN

Purpose. The aim of the study was to evaluate the aerobic capacity and energy expenditure of folk dancers. Methods. The aerobic capacity (VO2max) of four male and four female folk dancers was measured by an incremental treadmill test and energy expenditure was assessed by the linear relationship between heart rate and oxygen uptake as based on indirect calorimetry. Results. The dancers presented good aerobic capacity (VO2max), with men achieving values of 51.8 ± 7.39 ml ∙ kg-1 and women 43.43 ± 3.81 ml ∙ kg-1. Steady-state heart rate during folk dancing was 167.8 ± 16.68 b ∙ min-1 (85.0% ± 8.68% HRmax) for men and 178.3 ± 5.62 b ∙ min-1 (91.0% ± 3.83% HRmax) for women, with energy expenditure at 14.54 ± 2.09 kcal · min-1 and 10.08 ± 2.03 kcal · min-1, respectively. Conclusions. The exercise intensity performed during folk dancing is close to the threshold of decompensated metabolic acidosis. Folk dancing can be quantified as a difficult (for men) and very difficult (for women) form of physical activity; dancers should be physically well-prepared for the high exercise intensity present in folk dancing.

11

Correlations Between Habitual Physical Activity and Self-Perceived Functional Fitness, Self-Sufficiency Fitness and Health Among Men Over 60 Years Old

100%

Szeklicki R. , Osiński W. , Maciaszek J. , Stemplewski R. , Salamon A.

Human Movement

|

2013

|

tom 14

|

nr 1

27-34

EN

Purpose. The study examined whether increased levels of habitual physical activity (HPA) in men over 60, expressed by the volume of energy expenditure in relation to PA, is significantly related to a higher self-assessment of functional fitness, selfdependency fitness and health. Methods. One hundred and sixty six men over 60 (60-88 years of age) living in Poznań (a large city in Poland) participated in the study. In order to measure actual HPA, a Caltrac accelerometer was used. The results were analysed according to weekly physical activity energy expenditure (PA-EE) values and PA-EE values per kilogram of body weight (PA-EE/kg). A questionnaire was used to estimate self-perceived functional fitness, self-sufficiency fitness and health. Results. The study noted higher values of PA-EE and PA-EE/kg in men who positively perceived their functional fitness, self-sufficiency fitness and health. Conclusions. Increasing the range of everyday activities is one of the potential directions for the development of health prophylaxis.

12

Comparison of Physiological and Metabolic Responses to Playing Nintendo Wii Sports and Brisk Treadmill Walking

88%

Willems M. , Bond T.

Journal of Human Kinetics

|

2009

|

tom 22

43-49

EN

Regular moderate-intensity exercise (e.g. brisk walking) provides health benefits. In the present study, we compared the physiological and metabolic responses of playing the Nintendo Wii Sports tennis, baseball and boxing with self-paced brisk treadmill walking. Ten young-adults (21±1 years; 73.9±12.0 kg; 1.76±0.06 m) played each sport for 10 min with a 5 min rest interval or, in a separate session, walked briskly (6.1±0.6 km·h-1) with an equivalent time order wearing the Cosmed K4b2 metabolic system. In a bout of 10 min, the average values during Nintendo Wii boxing for physiological (i.e. minute ventilation, oxygen uptake and heart rate) and metabolic (i.e. energy expenditure, fat oxidation, carbohydrate oxidation and respiratory exchange ratio) responses were equal to brisk treadmill walking but lower for Nintendo Wii tennis and baseball (P<0.05). It was concluded that the physiological and metabolic responses of Nintendo Wii boxing would allow this game activity to be a viable part of a programme of structured exercise in young-adults to gain health benefits.

13

Physiological Responses During Multiplay Exergaming in Young Adult Males are Game-Dependent

88%

McGuire S. , Willems M. E.

Journal of Human Kinetics

|

2015

|

tom 46

|

nr 1

263-271

EN

Regular moderate-intensity exercise provides health benefits. The aim of this study was to examine whether the selected exercise intensity and physiological responses during exergaming in a single and multiplayer mode in the same physical space were game-dependent. Ten males (mean ±SD, age: 23 ±5 years, body mass: 84.2 ±15.6 kg, body height: 180 ±7 cm, body mass index: 26.0 ±4.0 kg·m−2) played the games Kinect football, boxing and track & field (3 × ~10 min, ~ 2 min rest periods) in similar time sequence in two sessions. Physiological responses were measured with the portable Cosmed K4b2 pulmonary gas exchange system. Single play demands were used to match with a competitive opponent in a multiplay mode. A within-subjects crossover design was used with one-way ANOVA and a post-hoc t-test for analysis (p<0.05). Minute ventilation, oxygen uptake and the heart rate were at least 18% higher during a multiplayer mode for Kinect football and boxing but not for track & field. Energy expenditure was 21% higher during multiplay football. Single play track & field had higher metabolic equivalent than single play football (5.7 ±1.6, range: 3.2-8.6 vs 4.1 ±1.0, range: 3.0-6.1, p<0.05). Exergaming in a multiplayer mode can provide higher physiological demands but the effects are game-dependent. It seems that exergaming with low intensity in a multiplayer mode may provide a greater physical challenge for participants than in a single play mode but may not consistently provide sufficient intensity to acquire health benefits when played regularly as part of a programme to promote and maintain health in young adults.

14

Assessment of the physical load of the waterjet operator using the G. Lehmann method

88%

Pałęga M.

Multidisciplinary Aspects of Production Engineering

|

2019

|

tom Vol. 2, Iss. 1

101--107

EN

Basic parameter characterizing the body's workload (in particular physical work) is the energy expenditure, which determines the amount of energy used to perform a specific job (in kcal or kJ). The purpose of this work was to determine the energy expenditure at the station of a water-cutting machine using the tabular-timing method according to G. Lehmann. As part of the author's own research, the position of the waterjet operator was described, taking into account the basic hazards present in the work environment and the requirements regarding occupational health and safety. The paper also presents the results of the energy expenditure assessment and their analysis, which allowed to propose corrective and preventive actions.

15

Energy Expenditure Combining Strength and Aerobic Training

88%

Vilaça J. , Bottaro M. , Santos C.

Journal of Human Kinetics

|

2011

|

tom 29A

|

nr Special Issue

21-25

EN

The combination of Strength Training (ST) with Aerobic Training (AT) exercises in the same training session, which commonly appears in literature as the concurrent training, is widely used in fitness and physical condition programs, especially when the aim is to increase the energy expenditure during and after training session. The aim of this study was to identify, through literature, whether the combination of exercises of the ST with exercises of the AT allows changes in body composition and energy expenditure during and after the training session. Chronic studies have showed a positive effect on body composition (decreased in relative body fat) when the ST are combined with AT. Similarly, the acute effects of the order of combining these two types of exercise does not seem to affect energy expenditure, measured by oxygen consumption (VO2), during the training session and only change this expenditure in the first 15 minutes after the training session. In conclusion, we can say that the studies indicate that the combination of exercises of the ST with exercises of the AT has a positive effect on changes in body composition, and energy expenditure during and after training sessions.

16

The futuristic model for physical activity and exercise: active video games

88%

Aygün C. , Çakır-Atabek H.

Physical Activity Review

|

2018

|

tom 6

45-53

EN

Physical inactivity is one of the main causes of noncommunicable diseases worldwide. In addition, obesity worldwide is increasing day by day due to insufficient energy expenditure, which is the result of physical inactivity. This review aimed to examine the physio logical effects of active video games (AVGs) systems and tried to define whether the AVGs could be suggested as an alternative exercise model considering the American College of Sports Medicine (ACSM) criteria. This review was based on the physiological re sponses of the different AVGs that were discussed in previous studies. It was revealed that AVGs significantly increased the energy expenditure and metabolic equivalent according to resting state. The majority of AVGs were found to achieve physical activit y levels of moderate intensity which meet ACSM criteria for health and fitness (3 -6 MET). Especially, AVGs can be considered as an alternative exercise model that is integrated with fun and technology in everyday use of individuals, reducing obesity preval ence and improving physical activity level with the ever - evolving modern and sophisticated AVGs systems. AVGs can actually be considered among the exercise models for the future, with the increasing use of active video game systems around the world.

17

Energy expenditure in triticale cultivation with different microelements fertilization technique

88%

Raczkowski M.

Polish Journal of Natural Sciences

|

2010

|

tom 25

|

nr 3

EN

The purpose of study was determination the energetic expenditure of triticale cultivation at different fertilization technique. There were calculated expenditure of treatments, natural resources, materials, durable means and equivalent of real work. It was showed, that the sum of the total energy expenditure in triticale cultivation was from 16723.2 to 21864.8 MJ ha⁻¹. The lower expenditures were with soil fertilization technique without objects with higher manganese dose (10.0 kg ha⁻¹) and with copper, zinc and manganese applied together at nitrogen dose 80 and 120 kg ha⁻¹ independent with microelement dose. The higher sum of total energy expenditure was with all microelements applied together before triticale sawing (to soil) depend on ferlilization before sawing with copper, zinc or manganese. There was not significant different in the same case with spray application of studied microelements. In the energy expenditure structure of triticale cultivation the higher participation (64.4–71.7%) was shoved with raw and materials, the lower (17.2–21.5% and 8.9–11.4%) with immediate energy carriers and exploitation expenditure and, the lowest (2.2–2.7%) with human work.

PL

Celem badań było określenie nakładów energetycznych w uprawie pszenżyta w warunkach zróżnicowanej techniki nawożenia. Obliczono energochłonność zabiegów, surowców, materiałów, środków trwałych i ekwiwalentu pracy ludzkiej. Stwierdzono, że suma skumulowanych nakładów energetycznych w uprawie pszenżyta wynosiła od 16 723,2 do 21 864,8 MJ ha⁻¹. Niższe nakłady występowały w doglebowej technice nawożenia, z wyjątkiem obiektów z większą dawką manganu (10,0 kg ha⁻¹) oraz z równoczesnym zastosowaniem miedzi z cynkiem i manganem na tle 80 i 120 kg ha⁻¹ azotu, niezależnie od dawki mikroelementów. Do zwiększenia sumy skumulowanych nakładów energetycznych przyczyniło się zastosowanie łączne mikroelementów przed siewem pszenżyta (doglebowo) w porównaniu z nawożeniem przedsiewnym wyłącznie miedzią, cynkiem lub manganem. Nie stwierdzono natomiast istotnej różnicy w takim samym przypadku po dolistnej aplikacji badanych mikroelementów. W strukturze energochłonności uprawy pszenżyta największy udział miały surowce i materiały (64,4–71,7%), mniejszy bezpośrednie nośniki energii (17,2–21,5%) i nakłady eksploatacyjne (8,9–11,4%), a najmniejszy praca ludzka (2,2–2,7%).

18

Effect of Modified Thai Yoga on Energy Cost and Metabolic Intensity in Obese Older Adult Thai Women

88%

Widjaja W. , Jitvimolnimit K. , Ajjimaporn A. , Laskin J. J.

Advances in Rehabilitation

|

2019

|

tom 33

|

nr 3

47-54

EN

Introduction Obesity is associated with increased risk of chronic diseases. An increasing of physical activity can prevent the obesity and improve the daily life quality in older adults. The purpose of this study was to investigate the effect of modified Thai Yoga on metabolic intensity and energy expenditure in obese older adult Thai women. Material and methods Twenty-six participants, aged 56-75 years old, were divided into two groups: non-obese group (NB) and obese group (OB) defined by their body mass index. After 12 sessions of familiarization, the participants performed the modified Thai Yoga exercise program for 60 minutes. Energy expenditure and metabolic variables were measured via open circuit calorimetry. Results At the exercise phase, the mean percentage of maximum heart rate for the OB and NB groups were OB: 57.43±6.32 % and 59.89±7.94%, respectively. The mean oxygen consumption for the OB group was 7.52±1.09 ml/min/kg as compared to the NB group which was 8.44±0.90 ml/min/kg. The mean metabolic equivalent (MET) for the OB group was 2.15±0.31 MET as compared to 2.41±0.26 MET for the NB group. Total energy expenditure for the OB and NB groups were 3531.32±483.47 kcal/day and 3090.82±387.99 kcal/day, respectively. The mean of activity energy expenditure for the OB group was 1509.65±498.72 kcal/day and 1393.39±367.41 kcal/day for the NB group. The difference between all parameters measured from OB and NB groups were significant (p<0.05). Conclusions These results demonstrated that this modified Thai Yoga program provides a well-tolerated light intensity exercise stimulus and could be prescribed as an exercise program for obese older adults.

19

Evidence for spontaneous torpor in Crocidura flavescens

88%

Baxter R. M.

Acta Theriologica

|

1996

|

tom 41

|

nr 3

EN

Periods of no activity between 02.00 and 10.00 and lasting for up to 7 h 40 min are reported for two captive Crocidura flavescens (I. Geoffroy, 1827). During one of these periods, the weight specific energy requirement of the shrew dropped to 25.1% of the usual, indicating a period of spontaneous torpor. Nest-box temperatures also drop during the periods of prolonged inactivity suggesting a lowered body temperature. Data for a younger animal suggest shorter periods of torpor. The timing of the torpor spans the coldest period of the day when the animal would expend most energy maintaining a constant body temperature.

20

Estimation of energy expenditure during various forms of exercise training in early cardiac rehabilitation

75%

Kocur P. , Deskur-Śmielecka E. , Wilk M. , Dylewicz P.

Physiotherapy

|

2009

|

tom 17

|

nr 2

3-11

PL

Celem niniejszej pracy było porównanie szacowania za pomocą trzech metod wydatku energetycznego (WE) podczas różnych form treningu stosowanego w rehabilitacji kardiologicznej. Materiał i metoda: badaniu poddanych zostało 40 kolejnych mężczyzn uczestniczących w programie wczesnej rehabilitacji po ostrym zespole wieńcowym. Program rehabilitacyjny składał się z 12-13 sesji treningowych obejmujących Nordic Walking (NW), ćwiczenia ogól-nousprawniające (Ćw) i trening na cyklergometrze (R). U każdego pacjenta 4-krotnie oszacowano WE za pomocą 3 prostych metod: z wykorzystaniem rejestratora częstotliwości rytmu serca z wbudowaną funkcją kalkulacji WE (CRS), akcelerometru i obliczanego na podstawie średniej treningowej CRS w odniesieniu do wartości CRS podczas kolejnych obciążeń w trakcie próby wysiłkowej. Wyniki: w przypadku wszystkich rodzajów treningu wartość WE oszacowanego za pomocą akcelerometru była istotnie mniejsza niż na podstawie obliczeń wykonywanych w odniesieniu do próby wysiłkowej, a w przypadku Ćw i R była także mniejsza niż oszacowana za pomocą rejestratora CRS. Szacowania WE za pomocą rejestratora CRS i obliczeń na podstawie średniej treningowej CRS różniły się istotnie jedynie w przypadku treningu na cykloergometrze. Niezależnie od zastosowanej metody, największy średni WE uzyskali pacjenci podczas NW. Wnioski: użycie rejestratora CRS wyposażonego w funkcję kalkulacji WE umożliwia wiarygodne porównanie WE związanego z różnymi formami aktywności fizycznej. Pomiar WE za pomocą akcelerometru jest przydatny wyłącznie do oceny niezłożonych czynności odbywających się z dużym przyspieszeniem liniowym ciała.

EN

Aim: to compare estimated energy expenditure by means of three simple methods during various forms of training used in cardiac rehabilitation. Material and methods: the examined group consisted of 40 men involved in early cardiac rehabilitation following acute coronary syndrome. The rehabilitation program consisted of 12-13 sessions comprising Nordic Walking (NW), calisthenics (Cal), and cycle ergometer training (Erg). In each subject, energy expenditure was measured four times using a heart rate monitor with inbuilt function for calculating energy expenditure (CRS), an accelerometer, and heart rate calculated from mean exercise heart rate value based on the data from the treadmill exercise test. Results: for all types of training, the energy expenditure value assessed with an accelerometer was lowerthan calculated based on data from the treadmill exercise test. For Cal and Erg, it was also lower than estimated with the heart rate monitor. The assessment of energy expenditure with the heart rate monitor and calculated based on the data from the exercise test differed exclusively in the case of ergometer training. For all methods of assessment, the energy expenditure was highest during NW. Conclusions: the use of the heart rate monitor enables reliable comparison of energy expenditure during various forms of physical activity. The accelerometer may be useful in assessment of energy expenditure only during simple activities with high linear acceleration.