Search results for "hope"
showing 8 items of 2928 documents
Analysis of requirements for valve accuracy and repeatability in high efficiency digital displacement motors
2018
Traditional variable displacement piston machines achieve high efficiency when operating at high displacements, but struggle with poor efficiency at low displacements. The pistons are connected to high pressure and low pressure in conjunction with the output shaft position and the displacement is changed by changing the piston stroke, resulting in almost constant friction, leakage, and compressibility losses independent of displacement. In digital displacement machines, the rotary valve is replaced by two fast switching on/off valves connected to every cylinder. By controlling the fast switching on/off valves, the cylinders can be controlled individually and friction, leakage and compressib…
Effects of 5-Week of FIFA 11+ Warm-Up Program on Explosive Strength, Speed, and Perception of Physical Exertion in Elite Female Futsal Athletes
2022
Futsal is a sport that originates from soccer and is increasingly practiced all over the world. Since training and warm-up protocols should be sport-specific in order to reduce injuries and maximize performance, this study aimed to evaluate the effects of 5 weeks of the FIFA 11+ warm-up program on explosive strength, speed, and perception of physical exertion in elite female futsal athletes. Twenty-nine elite female futsal athletes participating in the Italian national championships were divided into two groups: the experimental group (EG) underwent 5 weeks of the FIFA 11+ warm-up program, and the control group (CG) underwent 5 weeks of a dynamic warm-up. We evaluated any effect on explosiv…
Effects of progressive aquatic resistance training on symptoms and quality of life in women with knee osteoarthritis: A secondary analysis.
2020
Abstract Objective: To conduct a secondary analysis to study the effects, those 4 months of aquatic resistance training have on self‐assessed symptoms and quality of life in post‐menopausal women with mild knee osteoarthritis (OA), after the intervention and after a 12‐month follow‐up period. Methods: A total of 87 post‐menopausal volunteer women, aged 60‐68 years, with mild knee OA were recruited in a randomized, controlled, 4‐month aquatic training trial (RCT) and randomly assigned to an intervention (n = 43) and a control (n = 44) group. The intervention group participated in 48 supervised aquatic resistance training sessions over 4 months while the control group maintained their usual l…
The importance of vitamin D3 supplementation in orthopedics
2020
Falls have been recognized by the WHO as one of the most significant problems in aging societies. In the elderly after 65 years of age, they cause 90% of the fractures of the proximal femoral bone (bkk) and 100% of the forearm fractures [5].They usually occur when walking (most often), getting up and sitting down. The consequences of falls, as well as themselves, can be prevented by supplementing vitamin D3 [6] [8] regulating the body's calciumphosphate homeostasis. It improves neuromuscular function, including the mechanism reduces the frequency of falls. It also affects response time and balance. The concentration of vitamin D3 in the body is variable. Depends on endogenous biosynthesis a…
Force transmission and interactions between synergistic muscles
2023
The classical view of muscles as independent motors has been challenged over the past decades. An alternative view has emerged in which muscles are not isolated but embedded in a three-dimensional connective tissue network that links them to adjacent muscles and other non-muscular structures in the body. Animal studies showing that the forces measured at the distal and proximal ends of a muscle are not equal have provided undisputable evidence that these connective tissue linkages are strong enough to serve as an extra pathway for muscular force transmission. In this historical review, we first introduce the terminology and anatomy related to these pathways of muscle force transmission and …
Longitudinal physical activity patterns and the development of cardiometabolic risk factors during adolescence
2023
Purpose To examine the associations between longitudinal physical activity (PA) patterns and the development of cardiometabolic risk factors from adolescence to young adulthood. Methods This cohort study encompassed 250 participants recruited from sports clubs and schools, and examined at mean age 15 and 19. Device-measured moderate-to-vigorous PA was grouped into five patterns (via a data-driven method, using inactivity maintainers as a reference). The outcomes were: glucose, insulin, homeostasis model assessment for insulin resistance (HOMA-IR), total cholesterol, HDL and LDL cholesterol, triglycerides, blood pressure, and body mass index (BMI). Linear growth curve models were applied wit…
Validation in Young Soccer Players of the Modified Version of the Harre Circuit Test: The Petrucci Ability Test
2021
The evaluation of soccer players’ physical fitness from youth onward is important for monitoring performance and planning training. While health-related factors present valid and reliable tests, the skill-related component should be studied in depth. An interesting test to evaluate the skill-related factors is the Harre circuit test (HTC); unfortunately, this test includes the somersault, an element not present in soccer. The aim of the present study is the validation of the Petrucci ability test (PAT), a variation of the HTC without the somersault for young soccer players. Children and adolescents (age range 10–13 years old) soccer players concluded the 20-m, the HTC and the PAT. To establ…
Przywróćcie nam przyszłość! Kreatywny potencjał nostalgii w kontekście publicystycznych tekstów Aleksandra Hemona
2014
Autorka, opierając się na felietonach bośniackiego prozaika Aleksandra Hemona, wskazuje na aktywny, daleki od sentymentalizmu, kreatywny potencjał nostalgii, który nakierowany jest na przyszłość (a nie przeszłość). Zaangażowanie Hemona skierowane jest przeciw stanowi faktycznemu – rzeczywistości podzielonej Bośni i Hercegowiny, zaś gwarantem lepszej przyszłości ojczyzny pisarza są wartości obecne niegdyś w Jugosławii: wspólnota (umożliwiająca wymianę myśli i implikująca poczucie bycia częścią niejednorodnej zbiorowości) oraz nadzieja (związana z wiarą, że los jest w rękach jej mieszkańców, a jutro może być lepsze niż dziś).