Search results

1

Obesity - causes and remedies

100%

Bunc V.

Physical Activity Review

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2016

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vol. 4

50-56

EN

Obesity is blamed for over 2.8 million annual deaths all over the world with increasing prevalence of related comorbidities, including metabolic (e.g. diabetes mellitus, hyperlipidemia, hypertension) and non-metabolic disorders (e.g. cancer, stroke, depression, polycystic ovary syndrome, fat liver disease, glomerulopathy, bone fragility etc.) The aim of the study was to describe the causes and remedies of obesity. There are two primary causes for the increase in obesity: lack of an active lifestyle and poor nutrition. Fortunately, inactivity and poor nutrition are causes that can be altered through intervention. The PA based on walking in duration of 5 months were used in subjects with BMI>30kg.m-1. The PA was controlled in 192 middle age women, 67 men of the same age, and 58 women seniors with help the pedometer Omron HJ720IT and energy content was controlled by Caltrac, and by relationship between speed of walking and VO2. VO2peak was improved from 13.2±2.1% in women to 15.1±2.4% in men, and by 13.0±2.7% in senior women. Similarly was altered the motor performance – maximal speed of walking on the treadmill about 11.3±2.6% in women and16.2±3.1% in men, and by 10.8±2.6% in senior women. %BF was decreased by 7.2±1.9% in women and by 6.5±2.0% in men, and by 6.7±2.4% in senior women. Together with these variables were significantly improved the predispositions for physical and workload evaluated by ECM/BCM coefficient (6.8±2.5% in women, 7.9±3.1% in men, and 8.5±3.0% in senior women). We may concluded that walking with the mean energy content of 1500kcal.week-1 (9430 ± 840steps.day-1)in females and men of middle age, and energy content about 1000 kcal.week-1 (6930 ± 610steps.day-1) in senior women is able to significantly reduce the overweight and/or obesity and an improve actual fitness state in subjects without regular movement regime. Therefore, the chance of success in reducing the effects of hypokinesia have only those PA, which are cheap, safe, well manageable and easily available for sale in the times and conditions, complying with the intervened individuals.

2

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.

3

Effect of Added Weights on the Characteristics of Vertical Ground Reaction Force During Walk-to-Run Gait Transition

100%

Nimbarte A., Li L.

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EN

Purpose. In this study, the effect of added weights on the various force and time related characteristics of vertical ground reaction force (VGRF) during the last five steps prior to walk-to-run transition was studied. Basic procedures. Experimental set up consisted of a force platform embedded treadmill. Sixteen college students performed experimental trials by carrying 0%, 10%, 20% and 30% of their body weight. During each trial, after walking for about 30 seconds the speed of the treadmill was increased manually at a rate of 0.089 m/s/s (0.2 miles/hour) until the participant started running. Main findings. A significant interaction (weights × steps) was observed for the first peak of VGRF. The trough, second peak, impulse, and rate of force development of VGRF increased with added weights. During the last five walking steps, most of VGRF parameters changed in a nonlinear fashion. Conclusions. Based on the behavior of VGRF parameters and manually recorded preferred transition speed values, we argue that the added weights would reduce the walk-to-run transition speed. We further speculate that a combination of transition determinants actively participate in the reorganization process during the last five walking steps, prompting the gait transition.

4

Effects of Fatigue Induced by Prolonged Gait When Walking on the Elderly

88%

Pereira M., Gonçalves M.

Human Movement

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2011

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vol. 12

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issue 3

242-247

EN

Purpose. Fatigue has been pointed as a fall risk in the elderly; however, the effects of prolonged gait on neuromuscular recruitment and on its pattern remain unknown. The aim of this study was to evaluate the effects of prolonged gait on neuromuscular recruitment levels and spatial-temporal gait variables. Methods. Eight healthy older women (age: 72.63 ± 6.55 years) walked at their preferred walking speed for twenty minutes on a treadmill. The Root Mean Square (RMS) from the vastus-lateralis, femoral biceps, tibialis anterior and lateral gastrocnemius muscles were determined at the first and last minute of the test during the moments of Heel Strike (HS), Terminal Stance and Terminal Swing (TS). In addition, coactivation in the knee and ankle as well as the stride cadence and length were measured in the test. The two RMS data (taken at the first and last minute) were compared by means of a Student's t-test. Results. Twenty minutes of walking induced fatigue in the subjects, as observed through an increase in RMS, notably during the HS and TS. Coactivation was also influenced by the prolonged gait test. The only gait phase where a risk of falling was enhanced was the HS. Nonetheless, subjects developed strategies to maintain a safe motor pattern, which was evidenced by an increase in stride length and a decrease in stride cadence. Conclusion. Tests lasting just twenty minutes on a treadmill were enough to induce fatigue in older adults. However, the level of fatigue was not enough to present a danger or fall risk to elderly individuals.

5

Gait Asymmetry During Dual-Task Obstacle Crossing in the Young and Elderly

75%

da Rocha E. S., Machado Á. S., Franco P. S., Guadagnin E. C., Carpes F. P.

Human Movement

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2013

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vol. 14

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issue 2

138-143

EN

Purpose. To evaluate gait asymmetry during obstacle crossing by young and elderly adults performing normal and dual-task gait. Methods. Ten healthy young adults and ten elderly adults with mild cognitive impairment performed a gait protocol by stepping over a foam obstacle during normal gait and while performing a secondary task (Stroop task). Sagittal kinematics of the lead and trail limbs were analyzed. Statistical procedures involved analysis of variance and t tests at a significance of 0.05. Results. Many of the kinematic variables presented a main effect for group (young adults vs. elderly adults), where the elderly featured poorer gait performance. It was observed that gait velocity during obstacle crossing in normal and dual-task gait was similar between the preferred and non-preferred limbs in both the young and elderly. However, the elderly were slower during normal and dual-task gait. A main effect for the dual-task condition was observed. Kinematic asymmetries for obstacle crossing were more frequent in the elderly and especially during the dual-task condition. Conclusions. The results suggest that the elderly may require more compensatory adjustments after crossing an obstacle. The asymmetries observed among the elderly may contribute to higher risk of falling during perturbed gait.

6

Differences in male and female lower extremity joint kinematics during walking

75%

Szymańska K., Domżalski M., Stolarczyk A.

Medical Rehabilitation

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2019

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vol. 23(3)

39-46

PL

Wprowadzenie: Sposób chodu kobiet i mężczyzn jest od dawna postrzegany jako różny, jednak stosunkowo niedługo istnieje możliwość wykonania dokładnych pomiarów dających precyzyjne informacje na temat tych różnic. Stworzenie oddzielnych przedziałów norm chodu dla kobiet i mężczyzn mogłoby pomóc w diagnostyce, profilaktyce i terapii zaburzeń lokomocji. Cel: Praca przedstawia przegląd dostępnej literatury na temat chodu zdrowych dorosłych kobiet i mężczyzn, w celu wykazania czy istnieją naukowe podstawy do stworzenia oddzielnych przedziałów wartości norm dla chodu w zależności od płci. Metody: Przeszukano elektroniczne bazy danych PubMed, Web of Science i Science Direct stosując hasła ‚gait’, ‚sex’, ‚gender’, ‚men’, ‚women’, ‚male’, ‚female’. Kryteria włączenia obejmowały: artykuł był dostępny w języku angielskim, artykuł zawierał informacje dotyczące osób zdrowych, w badaniu analizowano biomechanikę chodu, w badaniu porównywano wartości dla obu płci, badanie obejmowało osoby dorosłe. Jeżeli w piśmiennictwie wyszukanych prac pojawiały się artykuły spełniające kryteria włączenia były one dołączane do przeglądu. Wyniki: Kryteria włączenia spełniało 12 prac. Po przejrzeniu abstraktów, a następnie pełnych tekstów pozostawiono 8 prac, 4 wyłączono ze względu na nie stosowanie powszechnych parametrów biomechanicznych lub badanie biomechaniki chodu do celów innych niż temat przeglądu (badanie ortez). Wnioski: Istnieją różnice w parametrach kinematycznych kobiet i mężczyzn podczas chodu dla miednicy i stawu biodrowego w płaszczyźnie czołowej i prawdopodobnie w płaszczyźnie strzałkowej dla stawu skokowego. Zalecane jest stworzenie oddzielnych przedziałów norm dla kobiet i mężczyzn.

EN

Introduction: Men and women are claimed to walk differently- with modern techniques we are able to quantify gait parameters and establish whether those perceived dissimilarities are supported by precise measurements. Creating separate normative values for men and women may help in gait disturbances diagnosis, prevention and therapy. Objectives: We review available studies on normal locomotion in adult men and women, to clarify if there is scientific evidence to create separate normative values of normal gait according to gender. Methods: Potentially relevant articles were identified with an electronic search of PubMed, Web of Science and Science Direct. Combination of keywords ‘gait’, ‘sex’, ‘gender’, ‘men’, ‘women’, ‘male’, ‘female’ were used. Articles were included if they met following criteria: article was written in English, the article contained information about non-pathological subjects, the study analyzed biomechanics of walking, the article compared metrics of both sexes, the study included data for adults. If additional papers were identified from cited references and met the inclusion criteria they were incorporated into the catalog of references. Results: The inclusion criteria was met by 12 articles. After reviewing abstracts and full-text articles 8 were included and 4 were excluded due to not applying common gait biomechanics parameters or studying gait biomechanics for purposes not connected to the review’s topic. Conclusions: There are differences between males’ and females’ gait kinematic values for coronal plane pelvis and hip movement and possibly in sagittal plane ankle movement. Creating separate normative values is recommended.

7

Effects of physiotherapy including various forms of gait exercises on a treadmill on functional efficiency in the elderly at risk of falling

75%

Wnuk B., Walusiak M., Durmała J., Kadyjewska M., Żak E.

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2010

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vol. 18

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issue 2

3-9

PL

Celem pracy jest ocena skuteczności fizjoterapii rozszerzonej o różne formy treningu marszowego na bieżni u osób starszych z obniżoną sprawnością fizyczną i zaburzeniami równowagi w przebiegu osteoporozy. Badaniem objęto 9 mężczyzn i 21 kobiet w wieku 60-80 lat. Pacjentów podzielono losowo na dwie równe grupy (kontrolną i badawczą). W grupie kontrolnej zastosowano trening chodu do przodu na bieżni ruchomej, a w grupie badawczej trening chodu do tyłu. Jako narzędzie badawcze wykorzystano testy funkcjonalne, m.in.: Tinetti, Functional Reach Test, Get Up and Go oraz badanie momentu siły mięśni czworogłowych stawów kolanowych. Wyniki badań wskazują, że trening chodu do tyłu na bieżni ruchomej w istotny sposób wpływa na poprawę sprawności fizycznej osób starszych i może być specyficzną i skuteczną formą kształtowania ich równowagi ciała.

EN

The aim of the study was to evaluate the effects of physiotherapy consisting of various forms of gait training on a treadmill in elderly patients with reduced physical fitness and with balance disorders. The examination group consisted of 9 men and 21 women aged 60-80 years and they were randomly divided into two groups (control and test). The gait exercises on a treadmill were based on walking forward in the control group and on walking backward in the test group. The following tests were employed for the purpose of the research: Tinetti test, Functional Reach Test, Get Up and Go Test. The strength of quadriceps muscles of the knee joints was examined as well. The research results show that backward walking on the treadmill significantly influences balance and physical fitness in elderly people and it may be an effective way of improving balance in the elderly.

Refine search results

Obesity - causes and remedies

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

Effect of Added Weights on the Characteristics of Vertical Ground Reaction Force During Walk-to-Run Gait Transition

Effects of Fatigue Induced by Prolonged Gait When Walking on the Elderly

Gait Asymmetry During Dual-Task Obstacle Crossing in the Young and Elderly

Differences in male and female lower extremity joint kinematics during walking

Effects of physiotherapy including various forms of gait exercises on a treadmill on functional efficiency in the elderly at risk of falling