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1.
J Orthop Sports Phys Ther ; 53(1): CPG1-CPG34, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36587265

RESUMEN

The Academy of Orthopaedic Physical Therapy and the American Academy of Sports Physical Therapy have an ongoing effort to create evidence-based clinical practice guidelines (CPGs) for orthopaedic and sports physical therapy management and prevention of musculoskeletal impairments described in the World Health Organization's International Classification of Functioning, Disability and Health (ICF). This guideline focuses on the exercise-based prevention of knee injuries and provides an update on the 2018 guideline, J Orthop Sports Phys Ther. 2018;48(9):A1-A42. doi:10.2519/jospt.2018.0303 J Orthop Sports Phys Ther. 2023;53(1):CPG1-CPG34. doi:10.2519/jospt.2023.0301.


Asunto(s)
Lesiones del Ligamento Cruzado Anterior , Traumatismos de la Rodilla , Deportes , Humanos , Lesiones del Ligamento Cruzado Anterior/prevención & control , Lesiones del Ligamento Cruzado Anterior/rehabilitación , Terapia por Ejercicio , Modalidades de Fisioterapia , Traumatismos de la Rodilla/terapia
2.
Clin J Sport Med ; 33(1): 90-96, 2023 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-36599363

RESUMEN

OBJECTIVE: To comprehensively review and report the outcomes of ankle syndesmotic injury management in elite athletes. DATA SOURCES: Three databases were searched for articles reporting the rate of return to sport following treatment of ankle syndesmotic injuries in elite athletes (collegiate or professional level). Ten articles and 440 athletes were included. Articles reporting the rate of return to sport following high ankle sprain injury in elite athletes. Data collected included demographics, type of treatment received, and return to sport (RTS) information. A random effects model was used. MAIN RESULTS: The estimated overall rate of RTS was 99% (95% CI, 95.5-99.9). The mean time to RTS was 38 ± 18 (range, 14-137) days. Of the 440 athletes, 269 (269/440%, 61%) were treated nonoperatively (nonoperative group); the rate of RTS was 99.6%, and the athletes returned at a mean time of 29 ± 14 (range, 13-45) days. A total of 171 athletes (171 of 440%, 39%) underwent surgical treatment (operative group). All (171 of 171%, 100%) athletes returned at a mean time of 50.3 ± 13 (range, 41-137) days. Almost all athletes who underwent surgery had suture button fixation (164 of 171 athletes, 96%), and the mean time to RTS was 7 weeks with 9.1% complication rate. CONCLUSIONS: Elite athletes with ankle syndesmosis injury return to sport at an extremely high rates, following operative or nonoperative treatment. Return to the preinjury level of competition should be expected at 4 weeks and 7 weeks in high-level athletes who undergo nonoperative and operative management, respectively. Suture button fixation was used by the majority of studies reporting surgical management of ankle syndesmosis injuries in athletes.


Asunto(s)
Traumatismos del Tobillo , Deportes , Humanos , Articulación del Tobillo , Atletas , Volver al Deporte , Traumatismos del Tobillo/cirugía
4.
Chemosphere ; 316: 137842, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36640983

RESUMEN

This study assessed the effect of tourism and other recreational activities on microplastic (MP) levels and their characteristics in the sand and surf zone of the seawater. Six sites were chosen belonging to three sandy beaches with similar geomorphologic and morphodynamic characteristics but with different tourism activities. On average, a concentration of 1133.3 ± 811.3 items/kg dry weight (d.w.) and 12.7 ± 14.9 items/m3 were found in the sand and seawater samples, respectively. Fibers and films predominated and were less than 1 mm in length. In the sand, the films mainly matched the PE polymer spectra and the fibers matched PET polymer, cotton, and indigo blue dye; in the seawater samples, PP films and PET fibers prevailed. At the Pehuén-Co - Monte Hermoso Coastal Marine MPA where the flow of tourists is low, the MP levels were the lowest and the largest particles were found, mainly blue or black fibers, with less polymer diversity, cotton and PET being the most prevalent suggesting a recent input of textile fibers to this site. Moreover, the highest concentration of MPs was found on the southern site of a beach considered to be more pristine due to negligible human activity, including the smallest size pattern, mostly composed of white films or fibers with a greater diversity of polymers, predominantly PE > PET > PP. A great occurrence of PVC white films was also found in the surf zone at this site. Proximity to the mouth of a river, littoral drift, and other point sources were identified as the main sources, indicating that, apart from the local tourism and recreational activities, other sources might play a major role in the input of MPs to sandy beaches, such as extensive/intensive agricultural land use and irrigation areas.


Asunto(s)
Deportes , Contaminantes Químicos del Agua , Humanos , Microplásticos , Plásticos , Turismo , Arena , Monitoreo del Ambiente , Contaminantes Químicos del Agua/análisis , Playas
5.
Sports Med ; 53(2): 481-501, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36622554

RESUMEN

BACKGROUND: One of the proposed mechanisms underlying the benefits of sports compression garments may be alterations in peripheral blood flow. OBJECTIVE: We aimed to determine if sports compression garments alter measures of peripheral blood flow at rest, as well as during, immediately after and in recovery from a physiological challenge (i.e. exercise or an orthostatic challenge). METHODS: We conducted a systematic literature search of databases including Scopus, SPORTDiscus and PubMed/MEDLINE. The criteria for inclusion of studies were: (1) original papers in English and a peer-reviewed journal; (2) assessed effect of compression garments on a measure of peripheral blood flow at rest and/or before, during or after a physiological challenge; (3) participants were healthy and without cardiovascular or metabolic disorders; and (4) a study population including athletes and physically active or healthy participants. The PEDro scale was used to assess the methodological quality of the included studies. A random-effects meta-analysis model was used. Changes in blood flow were quantified by standardised mean difference (SMD) [± 95% confidence interval (CI)]. RESULTS: Of the 899 articles identified, 22 studies were included for the meta-analysis. The results indicated sports compression garments improve overall peripheral blood flow (SMD = 0.32, 95% CI 0.13, 0.51, p = 0.001), venous blood flow (SMD = 0.37, 95% CI 0.14, 0.60, p = 0.002) and arterial blood flow (SMD = 0.30, 95% CI 0.01, 0.59, p = 0.04). At rest, sports compression garments did not improve peripheral blood flow (SMD = 0.18, 95% CI - 0.02, 0.39, p = 0.08). However, subgroup analyses revealed sports compression garments enhance venous (SMD = 0.31 95% CI 0.02, 0.60, p = 0.03), but not arterial (SMD = 0.12, 95% CI - 0.16, 0.40, p = 0.16), blood flow. During a physiological challenge, peripheral blood flow was improved (SMD = 0.44, 95% CI 0.19, 0.69, p = 0.0007), with subgroup analyses revealing sports compression garments enhance venous (SMD = 0.48, 95% CI 0.11, 0.85, p = 0.01) and arterial blood flow (SMD = 0.44, 95% CI 0.03, 0.86, p = 0.04). At immediately after a physiological challenge, there were no changes in peripheral blood flow (SMD = - 0.04, 95% CI - 0.43, 0.34, p = 0.82) or subgroup analyses of venous (SMD = - 0.41, 95% CI - 1.32, 0.47, p = 0.35) and arterial (SMD = 0.12, 95% CI - 0.26, 0.51, p = 0.53) blood flow. In recovery, sports compression garments did not improve peripheral blood flow (SMD = 0.25, 95% CI - 0.45, 0.95, p = 0.49). The subgroup analyses showed enhanced venous (SMD = 0.67, 95% CI 0.17, 1.17, p = 0.009), but not arterial blood flow (SMD = 0.02, 95% CI - 1.06, 1.09, p = 0.98). CONCLUSIONS: Use of sports compression garments enhances venous blood flow at rest, during and in recovery from, but not immediately after, a physiological challenge. Compression-induced changes in arterial blood flow were only evident during a physiological challenge.


Asunto(s)
Deportes , Humanos , Deportes/fisiología , Ejercicio Físico , Vestuario , Estado de Salud , Atletas
7.
PLoS One ; 18(1): e0280897, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36696387

RESUMEN

In recent years, numerous prognostic models have been developed to predict VO2max. Nevertheless, their accuracy in endurance athletes (EA) stays mostly unvalidated. This study aimed to compare predicted VO2max (pVO2max) with directly measured VO2max by assessing the transferability of the currently available prediction models based on their R2, calibration-in-the-large, and calibration slope. 5,260 healthy adult EA underwent a maximal exertion cardiopulmonary exercise test (CPET) (84.76% male; age 34.6±9.5 yrs.; VO2max 52.97±7.39 mL·min-1·kg-1, BMI 23.59±2.73 kg·m-2). 13 models have been selected to establish pVO2max. Participants were classified into four endurance subgroups (high-, recreational-, low- trained, and "transition") and four age subgroups (18-30, 31-45, 46-60, and ≥61 yrs.). Validation was performed according to TRIPOD guidelines. pVO2max was low-to-moderately associated with direct CPET measurements (p>0.05). Models with the highest accuracy were for males on a cycle ergometer (CE) (Kokkinos R2 = 0.64), females on CE (Kokkinos R2 = 0.65), males on a treadmill (TE) (Wasserman R2 = 0.26), females on TE (Wasserman R2 = 0.30). However, selected models underestimated pVO2max for younger and higher trained EA and overestimated for older and lower trained EA. All equations demonstrated merely moderate accuracy and should only be used as a supplemental method for physicians to estimate CRF in EA. It is necessary to derive new models on EA populations to include routinely in clinical practice and sports diagnostic.


Asunto(s)
Consumo de Oxígeno , Deportes , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Prueba de Esfuerzo/métodos , Atletas , Estado Nutricional
8.
Sensors (Basel) ; 23(2)2023 Jan 16.
Artículo en Inglés | MEDLINE | ID: mdl-36679844

RESUMEN

Failure detection of Unmanned Aerial Vehicle (UAV) motors and propulsion systems is the most important step in the implementation of active fault-tolerant control systems. This will increase the reliability of unmanned systems and increase the level of safety, especially in civil and commercial applications. The following paper presents a method of motor failure detection in the multirotor UAV using piezo bars. The results of a real flight, in which the failure of the propulsion system caused the crash of a hybrid VTOL UAV, were presented and analyzed. The conclusions drawn from this flight led to the development of a lightweight, simple and reliable sensor that can detect a failure of the UAV propulsion system. The article presents the outcomes of laboratory tests concerning measurements made with a piezo sensor. An extensive analysis of the obtained results of vibrations recorded on a flying platform arm with a propulsion system is presented, and a methodology for using this type of data to detect failures is proposed. The article presents the possibility of using a piezoelectric sensor to record vibrations on the basis of which it is possible to detect a failure of the UAV propulsion system.


Asunto(s)
Deportes , Reproducibilidad de los Resultados , Recolección de Datos , Dispositivos Aéreos No Tripulados , Vibración
9.
Br J Sports Med ; 57(3): 137-145, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36657824

RESUMEN

We sought to identify concepts that may facilitate National Collegiate Athletic Association efforts to assist member institutions in addressing the mental health needs of student-athletes of colour. A two-step process was followed to generate and refine concepts, guided by Delphi methodology. First, a scoping review was conducted, including original peer-reviewed research articles that quantified or qualitatively described determinant(s) of racial or ethnic differences in athlete mental health or mental healthcare. Next, a multiday virtual meeting was facilitated to review the results of the scoping review, discuss lived experiences and generate potential concepts. Participants included a racially and ethnically diverse group of student-athletes, medical and mental health professionals, athletics administrators, diversity, equity and inclusion experts, health educators and representatives from leading organisations involved in athlete mental health. Through the consensus process, participants identified 42 concepts that member institutions might consider implementing on their campuses. Concepts were largely focused on organisational policies and practices such as staffing diversity and inclusion, expanded options for clinical support (ie, identity-relevant support groups) and within-organisation accountability. Concepts related to specific areas for stakeholder education were also identified. Institutions have the potential to play an important role in supporting the mental well being of student-athletes of colour, and the present concepts can help inform institutional action. While concepts proposed are believed to be broadly relevant across athletics settings, they would need to be further considered and tailored to reflect setting-specific organisational structures, resources and needs.


Asunto(s)
Salud Mental , Deportes , Humanos , Color , Atletas/psicología , Estudiantes/psicología , Universidades
10.
Artículo en Inglés | MEDLINE | ID: mdl-36673673

RESUMEN

The aim of present study was to examine the mediating effect of presenteeism on the relationship between emotional labor and work engagement of coaches for disability sports. A total of 198 coaches in Korea participated in this study. Participants responded a survey measuring emotional labor, presenteeism, and work engagement. After analyzing the correlation between each variable, the mediation model was verified through structural equation model analysis. The results reveal that emotional labor of coaches for disability sports positively predicted their work engagement, but negatively predicted presenteeism. In addition, the participants' presenteeism can have a negative effect on their work engagement. Moreover, completing work in presenteeism was found to mediate the relationship between the deep acting and surface acting in emotional labor and work engagement of disability sports coaches.


Asunto(s)
Deportes , Compromiso Laboral , Humanos , Presentismo , Emociones , Encuestas y Cuestionarios
11.
Artículo en Inglés | MEDLINE | ID: mdl-36673898

RESUMEN

It is generally believed that sports play an important role in healing and boosting mental health. The provision of public sports services is important for enhancing residents' physical fitness and mental health, and for promoting their satisfaction with government public services. To build and strengthen a high-quality sports service-oriented society, it is important to explore whether community public sports services influence residents' mental health. To explore this phenomenon, the study gathered data from China and employed multi-level regression models to meet the study objective. The results show that the residents' age difference is 0.03, and the average daily exercise time is 0.02, which is significantly correlated with residents' mental health. The results show that the lower the availability and greening of sports facilities, and the fewer rest facilities there are, the higher the mental distress of residents may be. Conversely, the improvement of the greening and availability of sports facilities can facilitate the promotion of residents' mental health levels. Moreover, it was found that the mental health of residents is mainly and positively affected by the cleanliness of sports facilities. The street environment affects mental health and is attributed to the damage to sports facilities. Neighborhood communication also improves residents' mental health, and trust between neighbors has the greatest impact on reducing mental distress. Finally, the study proposes that the government should propose strategies to optimize the provision of community public sports services in the study area to boost both social and mental health benefits.


Asunto(s)
Salud Mental , Deportes , Encuestas y Cuestionarios , Satisfacción Personal , China
12.
Artículo en Inglés | MEDLINE | ID: mdl-36674008

RESUMEN

Skydiving have gained mainstream popularity over the past decades. However, limited data exist on the injury risk or type associated with skydiving. This systematic review evaluated the injuries and fatalities of civilian skydivers. A PRISMA-guided literature search was performed in MEDLINE, Web of Science, Cochrane Library, and Embase using the following MeSH terms: "skydiving" or "parachute" alone or in combination with "injury" or "trauma" was performed including all studies through June 2022 in both English and German. Additionally, injury reports from the German, American, and British Parachute Associations were reviewed. Of the 277 articles matching the selected search terms, 10 original articles and 34 non-scientific reports from various skydiving associations were included. More than 62 million jumps were evaluated, with an average of 3,200,000 jumps per year, which showed an average injury rate of 0.044% and an average fatality rate of 0.0011%. The most common injuries sustained by recreational skydivers involved the lumbar spine and lower extremities. Injuries were most commonly reported during the landing sequence. With modern equipment and training methods, fatalities occur in less than 1 per 100,000 cases, and serious injuries requiring hospitalization in less than 2 per 10,000 cases. This puts the assessment of skydiving as a high-risk sport into perspective.


Asunto(s)
Traumatismos en Atletas , Aviación , Deportes , Humanos , Traumatismos en Atletas/epidemiología , Conducta Peligrosa
13.
Artículo en Inglés | MEDLINE | ID: mdl-36674025

RESUMEN

There is strong evidence to support the association between daily physical activity and sleep parameters in children and adolescents. Physical activity and outdoor play are favourably associated with most sleep outcomes in school children. The aim is to find out the levels of physical activity and the quality of sleep in Basque schoolchildren aged between six and seventeen and to analyse the possible differences between those who carry out some kind of physical sports activity and those who do not. The sample consisted of 1082 schoolchildren (50.1% male and 49.9% female). Differences between groups were compared using the Mann-Whitney U test (2 samples) and Kruskal-Wallis one-factor ANOVA (k samples). A total of 723 (66.94%) of the participants said they practiced some physical sports activity. The accelerometers obtained significant differences in all levels of physical activity, as well as in sleep efficiency, with higher levels of physical activity (sedentary p = 0.001; light p = 0.017; moderate p = 0.009; vigorous p = 0.001 and moderate-to-vigorous physical activity p = 0.002) and better sleep efficiency (p = 0.002) in those schoolchildren who perform some type of physical sports activity. A significant difference in time spent in sedentary activities was also observed between primary and secondary school pupils of both sexes and regardless of the degree of physical sports activity completion.


Asunto(s)
Conducta Sedentaria , Deportes , Niño , Adolescente , Humanos , Masculino , Femenino , Ejercicio Físico , Instituciones Académicas , Sueño
14.
Artículo en Inglés | MEDLINE | ID: mdl-36674053

RESUMEN

BACKGROUND: Soccer is the most widely practiced sport in the world, demanding high-speed activities such as jumps, sprints and changes of direction. Therefore, having optimal levels of muscle strength improves performance and reduces the injury rate. OBJECTIVES: The objectives of our study were (i) to determine the dynamometric profile of hip muscle strength in young soccer players by position, evaluated at different isokinetic speeds, (ii) to describe the conventional and functional unilateral muscle strength ratios, (iii) to analyze the bilateral balance. METHODS: Thirty-seven male soccer players (age 17.02 ± 0.92 years) participated in the study. Strength assessment was performed with a functional electromechanical dynamometer, and concentric and eccentric strength of abductors, adductors, extensors and hip flexors were measured bilaterally at 0.5 m/s and 1 m/s. RESULTS: For eccentric right hip abduction at 0.5 m/s, defenders are significantly stronger than midfielders (p = 0.013) and stronger than forwards (p = 0.140). For eccentric right hip adduction at 0.5 m/s, defenders are significantly stronger than midfielders (p = 0.005) and stronger than forwards (p = 0.253), as for eccentric right hip adduction at 1 m/s, defenders are significantly stronger than midfielders (p = 0.014) and stronger than forwards (p = 0.084). There is a significant effect for the conventional strength ratio of left abduction/adduction at 1 m/s. The conventional strength ratio of forwards is significantly higher than that of defenders (p = 0.045) and higher than that of midfielders (p = 0.152). CONCLUSIONS: Concentric and eccentric hip strength values differ according to playing position.


Asunto(s)
Fútbol , Deportes , Masculino , Humanos , Adolescente , Fútbol/fisiología , Músculo Esquelético/fisiología , Muslo/fisiología , Cadera/fisiología , Fuerza Muscular/fisiología
15.
Artículo en Inglés | MEDLINE | ID: mdl-36674077

RESUMEN

The aim of the study was to analyse the perception of the barriers and motives for the practice of physical activity (PA) in people with a disability, according to gender and type of disability. The participants in this investigation were 103 people with a disability (33.25 ± 11.86 years) who were habitual users of PA or sports programmes. They completed the questionnaire Motives and Barriers for Physical Activity and Sport (MBAFD). The results showed that personal barriers were more important than environmental ones and that the most outstanding motives were those related to leisure, enjoyment or social aspects. Regarding gender, women perceived more barriers than men. For the people with physical (PD) and intellectual (ID) disabilities, the most common barriers were of an intrinsic nature, and for those with a visual disability (VD), barriers of an environmental nature. With respect to the motives, people with PD gave higher scores to the items related to aspects of physical improvement and rehabilitation. In contrast, people with ID and VD placed more importance on reasons of leisure, enjoyment and social relations. Knowledge of these findings can be a tool to help increase the provision of PA for people with a disability.


Asunto(s)
Personas con Discapacidad , Deportes , Masculino , Humanos , Femenino , Ejercicio Físico , Actividades Recreativas , Motivación
16.
Artículo en Inglés | MEDLINE | ID: mdl-36674388

RESUMEN

BACKGROUND: Sedentary behaviors have increased in recent years and their consequences have led the World Health Organization to make recommendations for promoting a more active lifestyle. The school environment has been defined as a key place for achieving this objective for children and adolescents. This systematic review and meta-analysis aims to analyze the effect of active-break interventions for interrupting prolonged sitting times during school-time on physical activity (PA) and sedentary behavior (SB), at school, in childhood and youth. METHODS: A systematic review and meta-analysis were carried out, including clinical trials aimed at assessing the effects of interrupting prolonged sitting at school with active breaks on in-school PA and/or SB. Multimodal and static interventions were excluded. Six databases were analyzed: Medline, WOS, Cochrane Library, SPORT Discus, CINAHL and EMBASE. PA, SB; moderate-to-vigorous physical activity (MVPA) were the variables considered. RESULTS: Nine studies were included, with a total of 2145 children between 6 and 12 years old. The heterogeneity in the duration (five-sixty min), the frequency (one-three times per-day up to three times per week), and duration (five days to three years) of the interventions was detected. The meta-analyses for in-school PA, MVPA, and SB were performed, showing a significant improvement in both PA and MVPA. CONCLUSIONS: Interrupting prolonged sitting with active-based school interventions could improve PA and MVPA levels during school time. (PROSPERO: CRD42022358933).


Asunto(s)
Ejercicio Físico , Deportes , Niño , Adolescente , Humanos , Instituciones Académicas , Estilo de Vida , Conducta Sedentaria
17.
Nutrients ; 15(2)2023 Jan 05.
Artículo en Inglés | MEDLINE | ID: mdl-36678150

RESUMEN

Bioelectrical impedance analysis (BIA) and anthropometry are considered alternatives to well-established reference techniques for assessing body composition. In team sports, the percentage of fat mass (FM%) is one of the most informative parameters, and a wide range of predictive equations allow for its estimation through both BIA and anthropometry. Although it is not clear which of these two techniques is more accurate for estimating FM%, the choice of the predictive equation could be a determining factor. The present study aimed to examine the validity of BIA and anthropometry in estimating FM% with different predictive equations, using dual X-ray absorptiometry (DXA) as a reference, in a group of futsal players. A total of 67 high-level male futsal players (age 23.7 ± 5.4 years) underwent BIA, anthropometric measurements, and DXA scanning. Four generalized, four athletic, and two sport-specific predictive equations were used for estimating FM% from raw bioelectric and anthropometric parameters. DXA-derived FM% was used as a reference. BIA-based generalized equations overestimated FM% (ranging from 1.13 to 2.69%, p < 0.05), whereas anthropometry-based generalized equations underestimated FM% in the futsal players (ranging from -1.72 to -2.04%, p < 0.05). Compared to DXA, no mean bias (p > 0.05) was observed using the athletic and sport-specific equations. Sport-specific equations allowed for more accurate and precise FM% estimations than did athletic predictive equations, with no trend (ranging from r = -0.217 to 0.235, p > 0.05). Regardless of the instrument, the choice of the equation determines the validity in FM% prediction. In conclusion, BIA and anthropometry can be used interchangeably, allowing for valid FM% estimations, provided that athletic and sport-specific equations are applied.


Asunto(s)
Composición Corporal , Deportes , Masculino , Humanos , Adolescente , Adulto Joven , Adulto , Impedancia Eléctrica , Antropometría/métodos , Absorciometría de Fotón/métodos
18.
Sensors (Basel) ; 23(2)2023 Jan 04.
Artículo en Inglés | MEDLINE | ID: mdl-36679367

RESUMEN

Over the past decades, huge steps have been made in the development of sensor technology related to sports monitoring [...].


Asunto(s)
Deportes , Tecnología
19.
Sensors (Basel) ; 23(2)2023 Jan 08.
Artículo en Inglés | MEDLINE | ID: mdl-36679512

RESUMEN

Today, more and more Internet public media platforms allowing people to make donations or seek help are being founded in China. However, there are few specialized sports-related public welfare platforms. In this paper, a sports-related public welfare platform that aims to help people who were disabled due to participation in sports and those who are disabled but want to participate in sports was developed based on multi-sensor technology. A multi-sensor data fusion algorithm was developed, and its estimation performance was verified by comparing it with the existing Kalman consistent filtering algorithm in terms of average estimation and average consistency errors. Experimental results prove that the speed of the data collection and analysis of the sports-related public welfare platform using the algorithm established in this paper was greatly improved. Relevant data on how users used this platform showed that various factors affected users' practical satisfaction with sports-related public welfare media platforms. It is suggested that a sports-related public welfare media platform should pay attention to the aid effect, and specific efforts should be devoted to improving the reliability and timeliness of public welfare aid information, and ensuring the stability of the platform system.


Asunto(s)
Deportes , Humanos , Reproducibilidad de los Resultados , Tecnología , Recolección de Datos , Algoritmos
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