278 research outputs found
MEDEX 2015: Heart Rate Variability Predicts Development of Acute Mountain Sickness
No full textSutherland, Angus, Joseph Freer, Laura Evans, Alberto Dolci, Matteo Crotti, and Jamie Hugo Macdonald. MEDEX 2015: Heart rate variability predicts development of acute mountain sickness. High Alt Med Biol. 18: 199-208, 2017.AIMS: Acute mountain sickness (AMS) develops when the body fails to acclimatize to atmospheric changes at altitude. Preascent prediction of susceptibility to AMS would be a useful tool to prevent subsequent harm. Changes to peripheral oxygen saturation (SpO2) on hypoxic exposure have previously been shown to be of poor predictive value. Heart rate variability (HRV) has shown promise in the early prediction of AMS, but its use pre-expedition has not previously been investigated. We aimed to determine whether pre- and intraexpedition HRV assessment could predict susceptibility to AMS at high altitude with better diagnostic accuracy than SpO2.METHODS: Forty-four healthy volunteers undertook an expedition in the Nepali Himalaya to >5000 m. SpO2 and HRV parameters were recorded at rest in normoxia and in a normobaric hypoxic chamber before the expedition. On the expedition HRV parameters and SpO2 were collected again at 3841 m. A daily Lake Louise Score was obtained to assess AMS symptomology.RESULTS: Low frequency/high frequency (LF/HF) ratio in normoxia (cutpoint ≤2.28 a.u.) and LF following 15 minutes of exposure to normobaric hypoxia had moderate (area under the curve ≥0.8) diagnostic accuracy. LF/HF ratio in normoxia had the highest sensitivity (85%) and specificity (88%) for predicting AMS on subsequent ascent to altitude. In contrast, pre-expedition SpO2 measurements had poor (area under the curve <0.7) diagnostic accuracy and inferior sensitivity and specificity.CONCLUSIONS: Pre-ascent measurement of HRV in normoxia was found to be of better diagnostic accuracy for AMS prediction than all measures of HRV in hypoxia, and better than peripheral oxygen saturation monitoring
La centralità del malato nel pensiero di fra Domenico da Catalogna negli statuti e nell'attività dell'Ospedale San Matteo
No full textSi indaga sul concetto di umanizzazione della cura nel processo di riforma ospedaliera del Quattrocento sulla base di testi statutari dell'Ospedale San Matteo di Pavi
The Road to Designing Integrated Neuromuscular Training Programs for Children and Adolescents: A Systematic Review and Meta-Analysis
No full text: Li, M, Crotti, M, Martins, R, Tiernan, C, Lyons, M, Lander, N, Barnett, LM, and Duncan, MJ. The road to designing integrated neuromuscular training programs for children and adolescents: A systematic review and meta-analysis. J Strength Cond Res 39(8): e1043-e1060, 2025-Integrative neuromuscular training (INT) combines motor competence and strength development to boost athletic performance, but its specific components and effects on children and adolescents are not well understood. Three predetermined principles (INT exercise categories, INT progression modalities, and INT program effectiveness) were used to guide this review. Electronic databases SPORTDiscus, MEDLINE (Ovid), APA PsycINFO, Cochrane Library, Web of Science, and Embase were searched. Search terms related to study design, population, and intervention were identified, and risk of bias was appraised using the Physiotherapy Evidence Database (PEDro) Scale. Narrative synthesis indicated "strength training" (18 out of 30 studies, 60%), particularly core strength exercises (72.2%), was the most common in INT exercise categories. Twelve out of 30 studies (40%) met at least 2 types of INT progression modalities (i.e., volume-based progressions, intensity-based progressions, and complexity-oriented progressions). Meta-analysis reported significant improvements in countermovement jump (mean difference [MD] 3.32 cm, 95% CI [2.07, 4.38]; p = 0.00), push-up (MD 3.74 repetitions, 95% CI [1.53, 5.95]; p = 0.00), and sprint (standardized MD -0.18 s, 95% CI [-0.26 to -0.09]; p = 0.00), but not in flexibility. Subgroup analysis revealed that meeting all the 3 progression modalities significantly enhanced sprint (standardized MD -0.76 s, 95% CI [1.21 to -0.31]; p = 0.03) and flexibility (MD 6.38 cm, 95% CI [5.45 to 7.31]; p = 0.00). This review provides evidence that INT programs have a positive effect on improving children and adolescents' physical fitness and is regarded as a promising protocol. This review and future research can inform a call to action for using INT as a novel approach for developing motor competence, strength, and conditioning simultaneously during childhood and adolescence
Differenziare i metodi per l'insegnamento dell'educazione fisica. Didattiche del movimento umano
No full textPer raggiungere diversi obiettivi di apprendimento nell’educazione fisica, il docente dovrebbe essere in grado di selezionare metodi di insegnamento idonei. La letteratura scientifica evidenzia che un fattore determinante in tale selezione è rappresentato dalle conoscenze pedagogiche pregresse dell’educatore. Diversi studiosi hanno creato modelli pedagogici e approcci didattici basati su solide fondamenta pratiche e teoriche per fornire una struttura con cui organizzare le varie tecniche che facilitano sia il lavoro del docente che l’apprendimento degli studenti. Per questo, il volume discute in modo critico tali modelli ed approcci con il fine di motivare il lettore ad ampliare le proprie risorse didattiche e promuovere in modo efficace lo sviluppo di competenze motorie, creatività motoria, responsabilità, collaborazione, motivazione, attività fisica e conoscenze tattiche negli allievi
Validity and reliability of submaximal fitness tests based on perceptual variables
No full textBACKGROUND: Few studies examined the validity of fitness tests based on perception scales. The field-based fitness tests batteries are composed by maximal tests and currently, a battery of submaximal tests does not exist. METHODS: Seventeen physically active male participants (age 40.5±10.7 years) performed the Multistage Fitness Test, the Crunch Test, the Push-Up Test and a Trunk Flexion Test with a submaximal protocol based on perceptual variables that were defined as non-validated submaximal. The mentioned tests were repeated three times to assess their reliability. The participants also performed four validated maximal tests comprising a velocity dependent ramp test on the treadmill, the Crunch Test, the Push-Up Test, and Sit-and-Reach Test. The submaximal tests were correlated to the maximal ones to assess their criterion validity. RESULTS: All the submaximal tests showed an ICC superior to 0.8 apart from the submaximal Crunch Test. The correlation between Maximal Treadmill Test and submaximal Multistage Fitness Test was 0.77. The correlation between Sit-and-Reach Test and submaximal Trunk Flexion Test was 0.71. Correlations equal to 0.66 and 0.60 were found between the maximal and submaximal Crunch Test and Push-Up Test respectively. CONCLUSIONS: The use of submaximal tests based on a fixed value of perception can represent a suitable tool to assess cardiorespiratory fitness and flexibility because of their correlation with the corresponding maximal evaluation tests and because of their reliability. On the contrary, muscular endurance capacity seems not to be assessable in the same manner
Feasibility of a teacher training intervention to improve primary school children motor competence and motivation through student-centred motor learning pedagogical approaches
No full textIntelligenza artificiale applicata al fitness e allo sport: la perdita delle relazioni = Artificial intelligence in fitness and sport context: the loss of relationships
No full textLe applicazioni sfruttano smartphone, sistemi GPS e giroscopi per l’analisi dei movimenti: velocità, angoli e arrangiamento dei segmenti del corpo. Questi strumenti consentono di confrontare i movimenti con modelli ideali e forniscono feedback personalizzati. L’IA in contesti sportivi è impressionante (sia per analisi angolari sia nel
rilevamento total body in grandi aree) ma non può sostituire il ruolo interattivo e interpretativo delle persone e la vera relazione tra docente e discente.The applications use smartphones, GPS systems and gyroscopes to analyse movement: speed, angles and arrangement of body segments. These tools allow you to compare movements with ideal models and provide customized feedback. AI in sports contexts is impressive (both for angular analysis and for total body detection in large areas) but it cannot replace the interactive and interpretive role of people and the real teacher-student relationship
Investigazione di pratiche basate su modelli e pedagogie per la promozione dell’interesse nell’educazione fisica
No full textInvestigation of model-based practices and pedagogies for an interest promoting physical education = Investigazione di pratiche basate su modelli e pedagogie per la promozione dell’interesse nell’educazione fisica
No full textLe attitudini verso l’educazione fisica (EF) calano con l’età portando ad alti livelli di insoddisfazione nella scuola secondaria. Esperienze negative in EF possono avere un impatto deleterio sulla futura attività fisica. Per risolvere questo problema gli educatori potrebbero usare approcci pedagogici basati su o pensati per promuovere interesse negli studenti in EF. Questo articolo esamina approcci per la promozione dell’interesse per creare un nuovo modello di promozione di interesse nell’EF.Attitudes in physical education (PE) decline with age leading to high levels of dissatisfaction in secondary school. Negative experiences in PE can have an adverse impact on future engagement in physical activity. To address this issue educators might employ pedagogical approaches that are either based on students’ personal interest or designed to promote interest in PE. This paper examines existing literature about approaches to promote interest in PE to create a new interest promoting model
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