1,721,135 research outputs found
DALL’OUTDOOR EXERCISE ALLA REALTÀ VIRTUALE: SOLUZIONI INNOVATIVE PER LA PROMOZIONE DI STILI DI VITA ATTIVI PER IL BENESSERE
No full textLa presente tesi intende esplorare il ruolo differenziale degli ambienti outdoor e indoor nell'attività fisica (AF), in un momento storico caratterizzato da crescenti sfide per la salute pubblica e la sostenibilità ambientale. La ricerca si inserisce nel contesto degli obiettivi dell'OMS per il 2030, che mirano a una riduzione del 15% dell'inattività fisica e all'implementazione di politiche urbane per la mobilità attiva.
L'elaborato si articola in due parti distinte e complementari: una teorica e una sperimentale. La parte teorica comprende un'ampia rassegna della letteratura scientifica che analizza: (1) i benefici multidimensionali dell'AF outdoor nelle diverse popolazioni, con particolare attenzione ai meccanismi fisiologici e psicologici sottostanti; (2) l'impatto della pandemia COVID-19 sulle abitudini di AF e le conseguenti modifiche comportamentali; (3) il ruolo emergente delle nuove tecnologie nella promozione di stili di vita attivi, con focus sulle potenzialità delle tecnologie immersive; (4) le implicazioni per la sostenibilità ambientale e le pratiche green.
La parte sperimentale si compone di due studi che indagano gli effetti dell'AF in contesti diversi. Il primo studio, un trial randomizzato cross-over condotto su trentuno giovani adulti (20M e 11F; età 24,3±3,2 anni; BMI 23,5±3,6 kg/m2), ha confrontato gli effetti acuti di tre diverse modalità di ciclismo: con realtà aumentata (ERC), con realtà virtuale (VRC) e outdoor (OUTC). Le variabili investigate hanno incluso parametri fisiologici (frequenza cardiaca) e psicologici (enjoyment, motivazione intrinseca e intenzione di svolgere esercizio green). I risultati hanno evidenziato la superiore efficacia dell'ambiente outdoor nel promuovere aspetti motivazionali e di enjoyment (p<0,001), nonostante le tecnologie immersive abbiano elicitato risposte fisiologiche più intense.
Il secondo studio, un trial randomizzato controllato della durata di dodici settimane, ha coinvolto trentatré adulti e anziani con patologie cardiovascolari stabilizzate (19M e 14F; età 69,5±4,9 anni; BMI 27,34±4,95 kg/m2). I partecipanti sono stati assegnati a tre gruppi: allenamento multicomponente outdoor (OMTG), allenamento multicomponente indoor (IMTG) e gruppo di controllo (CG). L'intervento ha valutato parametri emodinamici, fitness fisica e qualità della vita. Entrambi i gruppi di intervento hanno mostrato miglioramenti significativi nei parametri emodinamici e nella fitness fisica (p<0,001) rispetto al gruppo di controllo, con il gruppo outdoor che ha evidenziato benefici superiori per i domini psicologici (p<0,001) rispetto a quello indoor.
Complessivamente, questa linea di ricerca fornisce nuove evidenze scientifiche sull'efficacia differenziale degli ambienti outdoor e indoor nella promozione dell'AF. I risultati supportano l'importanza di integrare attività all'aperto nei programmi di promozione della salute, pur riconoscendone le limitazioni. Le implicazioni di questi risultati sono rilevanti per lo sviluppo di programmi di esercizio fisico che bilancino efficacemente i benefici per la salute con la sostenibilità ambientale, offrendo spunti per i professionisti del settoreThis thesis aims to explore the differential role of outdoor and indoor environments in physical activity (PA) during a historical period marked by growing challenges to public health and environmental sustainability. The research aligns with the WHO’s 2030 objectives, which aim for a 15% reduction in physical inactivity and the implementation of urban policies for active mobility.
The thesis is structured into two distinct yet complementary parts: theoretical and experimental. The theoretical section includes a comprehensive review of the scientific literature analyzing: (1) the multidimensional benefits of outdoor PA across diverse populations, with a particular focus on the underlying physiological and psychological mechanisms; (2) the impact of the COVID-19 pandemic on PA habits and subsequent behavioral changes; (3) the emerging role of new technologies in promoting active lifestyles, emphasizing the potential of immersive technologies; and (4) the implications for environmental sustainability and green practices.
The experimental section consists of two studies investigating the effects of PA in different contexts. The first study, a randomized crossover trial involving thirty-one young adults (20M, 11F; age 24.3±3.2 years; BMI 23.5±3.6 kg/m2), compared the acute effects of three cycling modes: augmented reality cycling (ARC), virtual reality cycling (VRC), and outdoor cycling (OUTC). Investigated variables included physiological parameters (heart rate) and psychological factors (enjoyment, intrinsic motivation, and intention to engage in green exercise). Results highlighted the superior efficacy of the outdoor environment in promoting motivational and enjoyment aspects (p<0.001), despite immersive technologies eliciting more intense physiological responses.
The second study, a twelve-week randomized controlled trial, involved thirty-three adults and older adults with stabilized cardiovascular conditions (19M and 14F; age 69.5±4.9 years; BMI 27.34±4.95 kg/m2). Participants were assigned to three groups: outdoor multicomponent training (OMTG), indoor multicomponent training (IMTG), and a control group (CG). The intervention assessed hemodynamic parameters, physical fitness, and quality of life. Both intervention groups showed significant improvements in hemodynamic parameters and physical fitness (p<0.001) compared to the control group, with the outdoor group demonstrating superior benefits in psychological domains (p<0.001) compared to the indoor group.
Overall, this research provides new scientific evidence on the differential efficacy of outdoor and indoor environments in promoting PA. The findings underscore the importance of integrating outdoor activities into health promotion programs while acknowledging their limitations. The implications of these results are relevant for developing exercise programs that effectively balance health benefits with environmental sustainability, offering insights for professionals in the fiel
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Physical Education in primary schools through traditional folk Games in outdoor contexts
Full text linkIl contributo evidenzia la necessità di modificare le strategie didattiche in educazione fisica nella scuola primaria. Lo stile di vita sedentario, complice la tecnologia e la recente Pandemia COVID19, richiede una rivalutazione delle didattiche classiche per promuovere, sin dall’infanzia, una educazione verso stili di vita attivi.
Dopo una disamina sull’importanza dei giochi della tradizione popolare (GTD), l’analisi rivaluta il loro utilizzo, nell’ambito della scuola primaria, sia per favorire la socializzazione e conservare i valori popolari sia come pratica di attività fisica al di fuori del contesto scolastico. Per questo motivo, la trattazione focalizza l’attenzione sulle strategie didattiche innovative come l’outdoor education (OE) e sui benefici psico-fisici da esse apportate, insieme alla pratica dei GTD, come esperienze educative reali in situazioni autentiche.
L’utilizzo dei GTD in OE può rappresentare una strategia ecologica per promuovere l’ attività motoria come stile di vita attivo in una età sensibile come l’infanzia
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
ISSUES IN ORGAN DONATION:LIVING UNRELATED KIDNEY TRANSPLANTATION
No full textAT THE PRESENT time, the validity of kidney transplant from living donors (LD) is based on many ethical and clinical considerations, which include the free willingness of the donor, the limited amount of risks to his or her health, and the results, which in most reports are better than those from cadaver donors (CD). On the other hand, the use of living unrelated donors (LURD) in kidney transplantation is still debated, and different opinions are expressed; in the United States it accounts for only 2% of all kidney transplants performed yearly.1 The data from our experience on this subject are reported here
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
- …
