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1

Effects of Different Backpack Loads in Acceleration Transmission during Recreational Distance Walking

100%

Lucas-Cuevas A. G., Pérez-Soriano P., Bush M., Crossman A., Llana S., Cortell-Tormo J. M., Pérez-Turpin J. A.

Journal of Human Kinetics

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2013

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vol. 37

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issue 1

81-89

EN

It is well established nowadays the benefits that physical activity can have on the health of individuals. Walking is considered a fundamental method of movement and using a backpack is a common and economical manner of carrying load weight. Nevertheless, the shock wave produced by the impact forces when carrying a backpack can have detrimental effects on health status. Therefore, the aim of this study was to investigate differences in the accelerations placed on males and females whilst carrying different loads when walking. Twenty nine sports science students (16 males and 13 females) participated in the study under 3 different conditions: no weight, 10% and 20% body weight (BW) added in a backpack. Accelerometers were attached to the right shank and the centre of the forehead. Results showed that males have lower accelerations than females both in the head (2.62 ± 0.43G compared to 2.83 + 0.47G) and shank (1.37 ± 0.14G compared to 1.52 ± 0.15G; p<0.01). Accelerations for males and females were consistent throughout each backpack condition (p>0.05). The body acts as a natural shock absorber, reducing the amount of force that transmits through the body between the foot (impact point) and head. Anthropometric and body mass distribution differences between males and females may result in women receiving greater impact acceleration compared to men when the same load is carried.

2

Effects of Exercise and/or Diet Programs on Kinanthropometric and Metabolic Parameters in Obese Children: a Pilot Study

100%

Saavedra J., Garcia-Hermoso A., Escalante Y.

Journal of Human Kinetics

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2011

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vol. 29

67-78

EN

This study was aimed at determining the effects of implementing a medium-term (six-month) exercise and/or a diet program on the kinanthropometric and metabolic parameters of obese children. The participants were 42 subjects (27 boys, 15 girls), whose ages were between 8 and 11, divided into three groups according to the program they followed. The E group followed a physical exercise program (three 90-minute sessions per week), the D group a low calorie diet, and the E+D group both interventions. A repeated-measure ANOVA was used to compare measurements of the participants' kinanthropometric and metabolic parameters at different times of the program, with the means being compared using the Tukey post-hoc test. It was found that medium-term intervention based on the combination of exercise and low calorie diet improved the obese children's kinanthropometric and metabolic parameters, especially those related to the lipid profile. Also, this combined program was more effective in controlling weight than the exercise or low calorie diet interventions alone.

3

HABITUAL PHYSICAL ACTIVITY IN ADULTS MEASURED BY ACCELEROMETER IN COMPLIANCE WITH SELECTED HEALTH RECOMMENDATIONS

100%

Dębska M., Mynarski W., Rozpara M., Puciato D.

Central European Journal of Sport Sciences and Medicine

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2017

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vol. 18

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issue 2

99-105

EN

The aim of the present study was the evaluation of habitual physical activity in adult members of health promoting associations in compliance with selected health recommendations. Physical activity was monitored for 7 consecutive days using accelerometer ActiGraph GT3X+. It was observed that the percentages of individuals with sufficient physical activity differ depending on healthoriented recommendation used in the evaluation. The results indicated that despite appropriate weekly volume of physical activity expressed in energy expenditure (on the average, twice as high as the recommended minimum) and the number of steps taken daily, the prevailing majority of participants (60%) demonstrated an inadequate level of it when assessed in the context of recommendation by World Health Organization.

4

Accelerometric testing of selected points of the human locomotor system

75%

Szczygieł E., Król S., Grzebień P., Korbiel T., Mazur T.

Medical Rehabilitation

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2010

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vol. 14(3)

8-17

PL

Cel: Celem niniejszej pracy było określenie zmian przyspieszeń na różnych poziomach ciała podczas chodu.Materiał i metody: W badaniu wykorzystano trzyosiowy czujnik akcelerometryczny, który był mocowany do stóp, podudzi, kolan, ud, bioder, na wyrostkach kolczystych L3 i C7 oraz na czubku głowy badanych. W teście wzięło udział 11 zdrowych osób w wieku 18-24 lat. Badani mieli do przejścia 20 metrów z wybraną przez siebie, naturalną prędkością. Wyniki były zapisywane przez komputer w czasie rzeczywistym.Wyniki: Badanie potwierdziło zmniejszanie się amplitudy przyspieszeń w miarę wzrostu poziomu ciała. U prawie wszystkich badanych najwyższe wartości przyśpieszenia zaobserwowano na piętach. Na wyższych poziomach przyspieszenia stopniowo malały, choć wyniki były zróżnicowane indywidualnie. U połowy badanych najmniejsze wartości zostały zarejestrowane na głowie, u pozostałych na wyrostku kolczystym C7. Najwyższy procentowo stopień absorpcji drgań miał miejsce w stawie skokowym i stopie, co przypisuje się specjalnej budowie tego stawu i mechanizmowi ewersji podczas chodu. Badania potwierdziły brak symetrii między prawą i lewą stroną ciała.

EN

Aim: The purpose of the paper was to determine changes in acceleration of the body parts while walking.Material and methods: A tri-axial accelerometric sensor which was fastened to the foot, shank, knee, thigh, hip, L3 and L7 spinous process or the head of the person who took part in the test was used. Eleven healthy adults aged 18-24 participated in the test. Test participants were asked to walk 20 meters at their chosen, normal speed. The results were recorded on a computer at the time of the test.Results: Tests results show that the higher the body part, the lower the amplitude of accelerations. The highest acceleration values for almost all test participants were observed at the heel level. Acceleration values gradually decreased in higher parts, though it must be noted that the results varied with regard to individual participants. As it was supposed prior to the test, in half of the participants the lowest values were the ones measured at the head level, while the other half showed lowest values in C7 spinous process. It turned out that the highest absorption rate of transient impulsive forces was in the ankle, which is considered to be the consequence of a special anatomical structure and the eversion mechanism during walking. The tests also confirmed the lack of symmetry between the right and the left side of the body.

5

Outcomes of the Rope Skipping ‘STAR’ Programme for Schoolchildren

75%

Ha A. S., Burnett A., Sum R., Medic N., Ng J. Y. Y.

Journal of Human Kinetics

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2015

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vol. 45

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issue 1

233-240

EN

Physical activity in children and adolescents is on a decline trend. To this end, we conducted a matched-pair randomized controlled trial to examine the effects of a 4-week STAR (School-based; Train-the-trainer; Accessibility of resources; Recreational) skipping programme. 1,386 schoolchildren from 20 primary and secondary schools were recruited. Schools were randomized into the experimental or wait-list control group. Participants self-reported their health-related quality of life using the KIDSCREEN-27. Accelerometers were used to measure the time a subgroup of participants (n = 480) spent in moderate-to-vigorous physical activity during school hours on five consecutive days. Measures were taken at pre- and post-test. At post-test, students in the experimental group, compared to those in the control group, engaged in less moderate-to-vigorous physical activity during school hours. Health-related quality of life from two groups of students was similar, but the experimental group reported higher levels of autonomy and parent relationships. Results suggested that although the intervention did not increase students’ physical activity levels, it slightly improved their health-related quality of life. Future studies should explore personal factors that might mediate the effect of the intervention.

6

Study on Ballistocardiogram Acquisition in a Moving Wheelchair with Embedded Sensors

63%

Pinheiro E., Postolache O., Girão P.

Metrology and Measurement Systems

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2012

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issue 4

Refine search results

Effects of Different Backpack Loads in Acceleration Transmission during Recreational Distance Walking

Effects of Exercise and/or Diet Programs on Kinanthropometric and Metabolic Parameters in Obese Children: a Pilot Study

HABITUAL PHYSICAL ACTIVITY IN ADULTS MEASURED BY ACCELEROMETER IN COMPLIANCE WITH SELECTED HEALTH RECOMMENDATIONS

Accelerometric testing of selected points of the human locomotor system

Outcomes of the Rope Skipping ‘STAR’ Programme for Schoolchildren

Study on Ballistocardiogram Acquisition in a Moving Wheelchair with Embedded Sensors