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1.
Int J Obes (Lond) ; 48(1): 22-32, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37775520

RESUMEN

BACKGROUND AND OBJECTIVE: The association between physical activity and diet has a valuable impact in weight status management to counteract obesity. In this context, within different training strategies (i.e., endurance, resistance training, concurrent training, agility training) the Integrative Neuromuscular Training (INT) represents a structured training mode focused on global human movement pattern development with the aim to enhance motor control, mobility and stability. In this narrative review we aimed to discuss the feasibility of INT interventions on physical fitness and body composition outcomes in individuals with obesity. SUBJECTS: Medline/PubMed, EMBASE, Web of Science, Google Scholar including were searched before 1st February 2023 without restrictions on publication year. METHODS: Two researchers extracted data from published trials. Randomized controlled trials or clinical trials, Body Mass Index of children and adolescents at the 95% percentile or greater, and for adults to be above 30 kg/m2, detailed intervention description, randomization process and allocation into an experimental or a control group, trials must have been written in English, were included. RESULTS: We included a total of 19 studies complying with the inclusion criteria for the review process. There is evidence that INT promotes positive adaptations in fitness levels in both younger and older participants with concomitant ameliorations during a shorter, medium and longer time period. Moreover, cardiorespiratory fitness, muscular strength, balance, postural control and body composition reached significant remarkable improvements following a specific intervention based on INT principles compared to other training mode. However, Body Mass Index, fat mass percentage and waist circumference showed similar changes overtime. CONCLUSIONS: Taken together, these findings support the effectiveness of INT in ameliorating physical fitness (i.e., health-related and skill related components) without negative changes in body composition. Nevertheless, fitness coaches and therapists may consider this training modality a feasible option when prescribing physical exercise in outpatients with obesity.


Asunto(s)
Aptitud Física , Entrenamiento de Fuerza , Adulto , Niño , Adolescente , Humanos , Ejercicio Físico , Obesidad/terapia , Fuerza Muscular
2.
Sensors (Basel) ; 23(2)2023 Jan 11.
Artículo en Inglés | MEDLINE | ID: mdl-36679631

RESUMEN

Surface electromyography (sEMG) is the acquisition, from the skin, of the electrical signal produced by muscle activation. Usually, sEMG is measured through electrodes with electrolytic gel, which often causes skin irritation. Capacitive contactless electrodes have been developed to overcome this limitation. However, contactless EMG devices are still sensitive to motion artifacts and often not comfortable for long monitoring. In this study, a non-invasive contactless method to estimate parameters indicative of muscular activity and fatigue, as they are assessed by EMG, through infrared thermal imaging (IRI) and cross-validated machine learning (ML) approaches is described. Particularly, 10 healthy participants underwent five series of bodyweight squats until exhaustion interspersed by 1 min of rest. During exercising, the vastus medialis activity and its temperature were measured through sEMG and IRI, respectively. The EMG average rectified value (ARV) and the median frequency of the power spectral density (MDF) of each series were estimated through several ML approaches applied to IRI features, obtaining good estimation performances (r = 0.886, p < 0.001 for ARV, and r = 0.661, p < 0.001 for MDF). Although EMG and IRI measure physiological processes of a different nature and are not interchangeable, these results suggest a potential link between skin temperature and muscle activity and fatigue, fostering the employment of contactless methods to deliver metrics of muscular activity in a non-invasive and comfortable manner in sports and clinical applications.


Asunto(s)
Músculo Esquelético , Músculo Cuádriceps , Humanos , Músculo Esquelético/diagnóstico por imagen , Músculo Esquelético/fisiología , Electromiografía/métodos , Músculo Cuádriceps/fisiología , Fatiga , Aprendizaje Automático Supervisado , Fatiga Muscular/fisiología
3.
J Strength Cond Res ; 36(3): 813-819, 2022 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-31972828

RESUMEN

ABSTRACT: Formenti, D, Trecroci, A, Duca, M, Vanoni, M, Ciovati, M, Rossi, A, and Alberti, G. Volleyball-specific skills and cognitive functions can discriminate players of different competitive levels. J Strength Cond Res 36(3): 813-819, 2022-The aim of this study was to investigate whether volleyball-specific skills, physical performance, and general cognitive functions differ between players of different competitive levels. Twenty-six female volleyball players competing at 2 different levels (n = 13, regional; n = 13, provincial) were tested on volleyball-specific skills (accuracy and technique of setting, passing, spiking, and serving), change of direction speed (COD) by the modified T-test, countermovement jump (CMJ) and general cognitive functions (executive control by Flanker task and perceptual speed by visual search task). Four machine learning models were tested to detect the best one to predict players' level. Regional players presented higher passing, spiking, serving accuracy (p < 0.05) and setting, passing, spiking, and serving technique (p < 0.05) than provincial players. Regional players had also better performance in COD and CMJ than provincial players (p < 0.05). Regional players presented lower response time than provincial players in both congruent and incongruent conditions of the Flanker task, and in both 10 items and 15 items conditions of the visual search task (p < 0.05). Decision tree classifier was the machine learning model with the highest performance to discriminate regional and provincial players (93% precision and 73% recall) by considering passing technique, congruent and incongruent condition of the Flanker task, 15 items and 10 items condition of the visual search task, and spiking technique. These findings demonstrated the importance of assessing volleyball-specific skills and cognitive functions as playing a role to discriminate players of different competitive levels.


Asunto(s)
Rendimiento Atlético , Voleibol , Cognición , Femenino , Humanos , Recuerdo Mental , Rendimiento Físico Funcional , Voleibol/fisiología
4.
Adapt Phys Activ Q ; 38(2): 215-231, 2021 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-33596539

RESUMEN

The purpose of this study was to monitor the changes in breathing pattern, trunk muscle stabilization, and upper-body muscular power in Paralympic swimmers throughout a competitive season over three time points: October (T1), March (T2), and August (T3). Six top-level Paralympic swimmers voluntarily participated in this study. The Friedman test, the Bonferroni-Dunn multiple comparison post hoc analysis, and Kendall's W concordance coefficient for the measure of effect were used. A significant difference was found in the breathing pattern, trunk stability, and upper-body power variables from the T1 to T3 season (p < .05). However, no significant changes were found in the T2 season. A long-term assessment of these fitness parameters may be of practical importance for better tailoring the training programs of top-level Paralympic swimmers.


Asunto(s)
Respiración , Natación , Humanos , Estaciones del Año
5.
J Strength Cond Res ; 33(5): 1232-1236, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-31034460

RESUMEN

Trecroci, A, Formenti, D, Rossi, A, Esposito, F, and Alberti, G. Short-term delayed effects of Kinesio taping on sprint cycling performance. J Strength Cond Res 33(5): 1232-1236, 2019-The aim of this study was to assess short-term delayed effects of Kinesio taping (KT) on maximal cycling performance. A design with repeated measures was used. Fifteen healthy trained subjects underwent 3 conditions: no KT (without tape), KT (Kinesio tape applied longitudinally on the thighs), and sham taping (Kinesio tape applied horizontally on the thighs). Each subject performed 2 sets of 3 × 6-second sprints (separated by 3 minutes) interspersed by 30 minutes of rest on a cycle ergometer. Allometric scaling of peak power (PP) and average power (AP) values were computed and analyzed for each sprint performance. Both PP and AP decreased significantly after 30 minutes (between set 1 and set 2) in all conditions, with a greater decrease in no KT condition compared with KT and sham (p < 0.01). No significant differences were observed between KT and sham conditions. The application of KT on thigh muscles attenuated the performance decrease that occurred after 30 minutes of rest between the 2 sets compared with the no KT condition. This finding suggests athletes may use KT to better manage their performance during delays in competition events.


Asunto(s)
Rendimiento Atlético , Cinta Atlética , Ciclismo/fisiología , Músculo Esquelético/fisiología , Adulto , Humanos , Masculino , Esfuerzo Físico , Distribución Aleatoria , Descanso/fisiología , Muslo , Factores de Tiempo , Adulto Joven
6.
Laterality ; 23(4): 462-478, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-29098936

RESUMEN

Facial asymmetry is considered a marker of psychological, emotional and physiological distress, while anxiety is a behavioural, psychological and physiological response to a threat to well-being. Since individuals respond to anxiety with specific patterns (e.g., muscular tension), it is reasonable to hypothesize that anxiety could contribute to facial tension and therefore facial asymmetry. Instead, since facial asymmetry is perceived as "unpleasant" from peers, its presence may be a hindrance to social adaptation contributing to generate anxiety. In this study, we investigated whether resting facial asymmetry and anxiety are associated in young population. Full frontal facial photographs of 56 Caucasian males were taken in resting state to obtain indices of asymmetry in six facial landmarks. Anxiety status was assessed using the State-Trait Anxiety Inventory (STAI-Y). Analysis of the face showed that asymmetry and laterality of specific facial landmarks were associated with anxiety. State anxiety was associated with eyebrow and lateral angle of the eye, while trait anxiety was associated with eyebrow and lateral angle of the mouth. Moreover, as compared with contralateral landmarks, the left landmarks were lifted/expanded in subjects with elevated trait/state anxiety, whereas the right landmarks were lifted/expanded in subjects with low-trait/state anxiety.


Asunto(s)
Ansiedad , Asimetría Facial , Ansiedad/fisiopatología , Lateralidad Funcional , Humanos , Masculino , Personalidad/fisiología , Escalas de Valoración Psiquiátrica , Descanso , Población Blanca , Adulto Joven
7.
J Therm Biol ; 69: 155-162, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-29037377

RESUMEN

The importance of using infrared thermography (IRT) to assess skin temperature (tsk) is increasing in clinical settings. Recently, its use has been increasing in sports and exercise medicine; however, no consensus guideline exists to address the methods for collecting data in such situations. The aim of this study was to develop a checklist for the collection of tsk using IRT in sports and exercise medicine. We carried out a Delphi study to set a checklist based on consensus agreement from leading experts in the field. Panelists (n = 24) representing the areas of sport science (n = 8; 33%), physiology (n = 7; 29%), physiotherapy (n = 3; 13%) and medicine (n = 6; 25%), from 13 different countries completed the Delphi process. An initial list of 16 points was proposed which was rated and commented on by panelists in three rounds of anonymous surveys following a standard Delphi procedure. The panel reached consensus on 15 items which encompassed the participants' demographic information, camera/room or environment setup and recording/analysis of tsk using IRT. The results of the Delphi produced the checklist entitled "Thermographic Imaging in Sports and Exercise Medicine (TISEM)" which is a proposal to standardize the collection and analysis of tsk data using IRT. It is intended that the TISEM can also be applied to evaluate bias in thermographic studies and to guide practitioners in the use of this technique.


Asunto(s)
Temperatura Cutánea , Termografía/métodos , Animales , Regulación de la Temperatura Corporal , Técnica Delphi , Ejercicio Físico , Terapia por Ejercicio/métodos , Humanos , Medicina Deportiva/métodos
8.
Res Sports Med ; 25(1): 48-57, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-27855489

RESUMEN

Based on the hypothesis that tactile stimulation affects muscle activation levels, we theorized that taping vastus medialis and vastus lateralis muscles would improve a 6 s sprint cycling performance. Thus, the aim of this study was to determine whether the use of kinesio taping (KT) was helpful in increasing maximal-intensity cycling exercise. Sixteen active healthy subjects were enrolled in a randomized placebo, repeated measures design. All subjects were tested on a cycle ergometer under three conditions: without taping, taping along anterior thigh muscles and sham taping across the same muscle groups. Results showed a significant increase in peak power output and total work after the application compared to the condition with no tape applied (p < 0.05). No significant difference was found between the two modes of application. Our findings indicated that the tactile stimulation of KT applied longitudinally provided positive effects during a sprint cycling performance in healthy and active subjects.


Asunto(s)
Rendimiento Atlético/fisiología , Cinta Atlética , Ciclismo/fisiología , Músculo Cuádriceps/fisiología , Adulto , Prueba de Esfuerzo , Voluntarios Sanos , Humanos , Masculino , Fuerza Muscular/fisiología
9.
Appl Opt ; 55(34): D126-D130, 2016 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-27958445

RESUMEN

The use of thermal imaging in monitoring the dynamic of skin temperature during prolonged physical exercise is central to assess athletes' ability to dissipate heat from the skin surface to the environment. In this study, seven elite cyclists completed an incremental maximal cycling test to evaluate their skin temperature response under controlled-environment conditions. Thermal images have been analyzed using a method based on maxima detection (Tmax). Data confirmed a reduction in skin temperature due to vasoconstriction during the exercise, followed by a temperature increment after exhaustion. A characteristic hot-spotted thermal pattern was found over the skin surface in all subjects. This research confirmed also the notable ability by highly trained cyclists to modify skin temperature during an incremental muscular effort. This study gives additional contributions for understanding the capability of the Tmax method applied to the thermoregulatory physiological processes.


Asunto(s)
Ciclismo/fisiología , Temperatura Cutánea , Termografía/métodos , Adulto , Ejercicio Físico , Humanos , Masculino
10.
J Therm Biol ; 59: 58-63, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27264889

RESUMEN

Low intensity resistance training with slow movement and tonic force generation has been shown to create blood flow restriction within muscles that may affect thermoregulation through the skin. We aimed to investigate the influence of two speeds of exercise execution on skin temperature dynamics using infrared thermography. Thirteen active males performed randomly two sessions of squat exercise (normal speed, 1s eccentric/1s concentric phase, 1s; slow speed, 5s eccentric/5s concentric phase, 5s), using ~50% of 1 maximal repetition. Thermal images of ST above muscles quadriceps were recorded at a rate of 0.05Hz before the exercise (to determine basal ST) and for 480s following the initiation of the exercise (to determine the nonsteady-state time course of ST). Results showed that ST changed more slowly during the 5s exercise (p=0.002), whereas the delta (with respect to basal) excursions were similar for the two exercises (p>0.05). In summary, our data provided a detailed nonsteady-state portrait of ST changes following squat exercises executed at two different speeds. These results lay the basis for further investigations entailing the joint use of infrared thermography and Doppler flowmetry to study the events taking place both at the skin and the muscle level during exercises executed at slow speed.


Asunto(s)
Regulación de la Temperatura Corporal , Ejercicio Físico , Flujo Sanguíneo Regional , Entrenamiento de Fuerza/métodos , Temperatura Cutánea , Piel/irrigación sanguínea , Adulto , Humanos , Masculino , Músculo Esquelético/irrigación sanguínea , Músculo Esquelético/fisiología , Termografía , Adulto Joven
11.
Res Sports Med ; 24(4): 331-340, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27593436

RESUMEN

The purpose of this study was to examine the effects of speed, agility and quickness (SAQ) training on acceleration (5 and 20 m), change of direction speed (CODS) and reactive agility in preadolescent soccer players. Thirty-five participants (age = 10.57 ± 0.26, body mass = 36.78 ± 5.34 kg, body height = 1.42 ± 0.05 m), randomly assigned to experimental (EG, n = 20) and control groups (CG, n = 15), completed a 12-week training intervention, 2 day/week. A significant interaction was found in 5-m sprint (P < 0.05, part η2 = 0.117) and reactive agility (P < 0.01, part η2 = 0.248) between EG and CG. In both groups, 20-m sprint time improved significantly (P < 0.05, effect size = 0.3-0.4) while performance on CODS remained unchanged after 12 weeks. These findings indicated that SAQ training could positively affect cognitive skills and initial sprint acceleration through the middle childhood, offering useful guidance to soccer coaches.


Asunto(s)
Aceleración , Rendimiento Atlético/fisiología , Acondicionamiento Físico Humano/métodos , Tiempo de Reacción/fisiología , Carrera/fisiología , Fútbol/fisiología , Niño , Prueba de Esfuerzo , Humanos
12.
Percept Mot Skills ; 121(3): 840-55, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26682609

RESUMEN

It was hypothesized that an individual's chronotype might influence the response to physical activity at a given time of day. This study aimed to analyze the psychophysiological responses during a walking task at different times of day in individuals with different chronotypes. 46 students (M age=24.8 yr., SD=7.2) filled in the Morningness-Eveningness Questionnaire to determine chronotypes. Heart rate, walking time, and the rating of perceived exertion (RPE) were measured during two self-paced walking sessions: one in the morning (08:30) and one in the afternoon (15:30). A multivariate analysis of variance found a significant interaction between chronotype and time of day. The post hoc analysis showed a significant difference for RPE in the morning session, with evening types reporing a higher RPE compared with the morning types. The chronotype and the time of day when a physical task is undertaken can influence the RPE response, although it might not influence physiological or performance parameters. This has to be taken into account, because it can affect test reliability as well as possibly have a negative influence on the affective responses to a given task.


Asunto(s)
Ritmo Circadiano/fisiología , Ejercicio Físico/fisiología , Estudiantes/psicología , Estudiantes/estadística & datos numéricos , Caminata/fisiología , Adulto , Femenino , Frecuencia Cardíaca/fisiología , Humanos , Masculino , Esfuerzo Físico/fisiología , Psicofisiología , Reproducibilidad de los Resultados , Sueño , Encuestas y Cuestionarios , Factores de Tiempo , Adulto Joven
13.
Res Sports Med ; 23(2): 126-39, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25670160

RESUMEN

The aim of this study was to observe the cardiovascular demands by monitoring the heart rate (HR) and the pacing strategy by evaluating the speed during a simulated cross-country skiing race. Eleven skiers (16.45 ± 1.67 yrs; 21.32 ± 2.03 kg m(-2); 72.35 ± 4.69 mL min(-1) kg(-1)) competed in a 10 km event divided into four laps. The HR profile was classified into four intensity zones. The skiers spent 66.84 ± 23.64% and 31.82 ± 23.77% of the total time above 90% and at 80-90% of the HRmax respectively, whereas the lower zones were negligible. During the event, a progressive increase in intensity was observed: HRmean raised by 2.42% in the last versus the first lap (p < 0.001). The skiers decreased their speed in the second (p = 0.017) and the third laps (p < 0.001) compared to with the first lap. In the fourth lap the skiers increased the speed slightly but without statistical difference. The speed maintained by the skiers resulted in the adoption of a reverse J-shaped pacing strategy.


Asunto(s)
Rendimiento Atlético/fisiología , Frecuencia Cardíaca , Esfuerzo Físico , Esquí/fisiología , Adolescente , Humanos , Masculino
14.
Sports (Basel) ; 12(4)2024 Mar 26.
Artículo en Inglés | MEDLINE | ID: mdl-38668562

RESUMEN

This study aimed to identify the relationship between dryland tests and swimming performance in elite Paralympic swimmers. Fifteen competitive swimmers (age: 27.4 ± 5.4 years, height: 1.70 ± 6.8 m, body mass: 67.9 ± 9.2 kg; 9 males, 6 females) performed a lat pull-down and a bench press incremental load test to determine maximum power (Pmax), the strength corresponding to maximum power (F@Pmax), and the barbell velocity corresponding to maximum power (V@Pmax) from the force-velocity and power-velocity profiles. These outcomes were also normalized by the athlete's body mass. Swimming performance was carried out from the best result in a 100 m freestyle race registered during an international competition. Lat pull-down F@Pmax was significantly associated with 100 m freestyle chronometric time (ρ = -0.56, p < 0.05), and lat pull-down V@Pmax presented a relationship with mean swimming velocity (ρ = 0.71, p < 0.01). Similarly, bench press F@Pmax and the normalized F@Pmax were significantly related to the mean swimming velocity (ρ = -0.51, ρ = -0.62, p < 0.05). Stepwise multiple regression showed that lat pull-down V@Pmax, bench press normF@Pmax, and V@Pmax accounted for 40.6%, 42.3%, and 65.8% (p < 0.05) of the mean swimming velocity variance. These preliminary results highlighted that simple dryland tests, although with a moderate relationship, are significantly associated with 100 m freestyle swimming performance in elite Paralympic swimmers.

15.
PLoS One ; 19(4): e0301858, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38625955

RESUMEN

System Thinking is an actual construct supported by several scientific evidence that offer a perspective on how phenomena relate. Rhythm methodology, teaching-learning, and enjoyment in physical education are the main system elements we hypothesize interacting closely to determine direct or mediated effects on motor creativity and rhythmic perceptive capacity. Seventy-six elementary and middle school students (8.9 ± 2.1 years) were randomly assigned to two groups: a) an intervention group that received a physical education lesson based on rhythmic methodology and b) a control group that received conventional lessons without specific rhythmic interventions. Participants were engaged in eight physical education lessons lasting one hour each for eight weeks. Tests and questionnaires were administered before and after the intervention to evaluate motor creativity, rhythmic perception capacity, self-perception and enjoyment. Two lessons were randomly analyzed to identify the teaching style and motor content (moderate and vigorous activity). The main results revealed direct effects on the intervention group's motor creativity (p = 0.001) and its rhythmic perception capacity (p = 0.02). Furthermore, enjoyment mediated the effects of the intervention on motor creativity (p = 0.01). Finally, the results have shown that self-perception does not mediate the effect of rhythmic intervention group on motor creativity and rhythmic perceptive capacity (p > 0.05). A rhythmic methodology proposed by specific multi-teaching styles can involve children and young people in an enjoyable activity with more moderate to vigorous physical activity.


Asunto(s)
Educación y Entrenamiento Físico , Instituciones Académicas , Niño , Humanos , Adolescente , Creatividad , Aprendizaje
16.
CJC Open ; 6(5): 735-744, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38846444

RESUMEN

Background: Nordic walking (NW) has several potential benefits for individuals with cardiovascular (CV) disease, type 2 diabetes, and obesity and/or overweight. NW improves cardiovascular health, including exercise capacity and blood pressure control. NW enhances glycemic control and insulin sensitivity in diabetes, and aids in weight management and body composition improvement. NW offers additional advantages, such as improvement in muscular strength, joint mobility, physical activity levels, and psychological well-being. Methods: This open-label study with 3 arms will aim to evaluate the efficacy, safety, and adherence to exercise prescription in obese and/or overweight diabetic patients with CV complications. The primary objective will be to assess the CV performance of participants after a 6-month and a 12-month follow-up period, following a 3-month NW intervention, compared with standard rehabilitation, and with cardiological counseling (control group) training lasting 3 months. Results: The results of the study will provide valuable insights into the comparative effectiveness of a NW intervention vs standard rehabilitation and control group training in improving CV performance in obese and/or overweight diabetic patients with CV complications. Additionally, safety and adherence data will help inform the feasibility and sustainability of the exercise prescription over an extended period. Conclusions: These findings may have implications for the development of tailored exercise programs for this specific patient population, with the aim of optimizing CV health outcomes. Clinical Trials Registration: NCT05987410.


Contexte: La marche nordique offre plusieurs bienfaits potentiels aux personnes atteintes d'une maladie cardiovasculaire (CV), de diabète de type 2, de surpoids ou d'obésité. Elle améliore la santé cardiovasculaire, notamment l'endurance à l'effort et la régulation de la pression artérielle, en plus de favoriser l'équilibre glycémique et d'accroître la sensibilité à l'insuline chez les personnes diabétiques. Elle facilite également la gestion du poids et l'amélioration de la composition corporelle. Par ailleurs, la marche nordique présente d'autres avantages, comme l'augmentation de la force musculaire, de la mobilité articulaire, du niveau d'activité physique et du bien-être psychologique. Méthodologie: Cette étude ouverte à 3 groupes vise à évaluer l'efficacité, la sécurité et l'observance des exercices prescrits chez des sujets diabétiques obèses ou en surpoids présentant des complications CV. Le principal objectif consistera à évaluer la performance CV des participants au cours d'une période de suivi de 6 et 12 mois après un programme de marche nordique de 3 mois, comparativement à un programme de réadaptation standard et à un programme d'encadrement en soins CV (groupe témoin) de 3 mois. Résultats: Les résultats de l'étude fourniront de précieux renseignements sur l'efficacité d'un programme de marche rapide comparativement à un programme de réadaptation standard et à un programme d'encadrement (groupe témoin) pour améliorer la performance CV chez des sujets diabétiques obèses ou en surpoids présentant des complications CV. Les données relatives à la sécurité et à l'observance permettront également d'évaluer la faisabilité et la viabilité de la prescription d'exercices sur une longue période. Conclusions: Ces résultats pourraient s'avérer utiles dans l'élaboration de programmes d'exercices spécifiquement conçus pour cette population de patients, afin d'optimiser les résultats en santé CV. Numéro d'inscription de l'essai clinique: NCT05987410.

17.
Front Sports Act Living ; 5: 1170738, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37601169

RESUMEN

Cognitive training primarily aims to improve executive functions (EFs). It has become a popular research topic, as previous studies have provided preliminary evidence that EFs relate to sports performance. However, whether a domain-generic cognitive training intervention can improve EFs in high-performance athletes is still unclear. The present randomized controlled study aimed to examine the effects of an eight-week (5 min/day, 5 days/week) smartphone-based domain-generic cognitive training intervention (i.e., the smartphone game "Fruit Ninja") on EFs in youth soccer athletes (N = 33; intervention: n = 15, passive control: n = 18; German youth soccer academy). We assessed working memory (3-back task), inhibition (Flanker & Go/NoGo task), and cognitive flexibility (number-letter task) in a pre-post design with computerized tasks. The results showed no significant time x group differences attributable to the cognitive training between the intervention group and the control group, except for a response time variable of the Go/NoGo task. These preliminary results do not suggest an application of CT as a smartphone-based game to improve EFs performance in soccer players. However, more research is needed to establish the efficacy of domain-specific interventions in high-level team sport athletes.

18.
Sci Data ; 9(1): 250, 2022 05 31.
Artículo en Inglés | MEDLINE | ID: mdl-35641518

RESUMEN

From March 2020 to May 2021, several lockdown periods caused by the COVID-19 pandemic have limited people's usual activities and mobility in Italy, as well as around the world. These unprecedented confinement measures dramatically modified citizens' daily lifestyles and behaviours. However, with the advent of summer 2021 and thanks to the vaccination campaign that significantly prevents serious illness and death, and reduces the risk of contagion, all the Italian regions finally returned to regular behaviours and routines. Anyhow, it is unclear if there is a long-tail effect on people's quality of life, sleep- and physical activity-related behaviours. Thanks to the dataset described in this paper, it will be possible to obtain accurate insights of the changes induced by the lockdown period in the Italians' health that will permit to provide practical suggestions at local, regional, and state institutions and companies to improve infrastructures and services that could be beneficial to Italians' well being.


Asunto(s)
COVID-19 , Calidad de Vida , Cuarentena , COVID-19/epidemiología , COVID-19/psicología , Control de Enfermedades Transmisibles , Ejercicio Físico , Humanos , Italia/epidemiología , Pandemias , Cuarentena/psicología , Sueño
19.
Artículo en Inglés | MEDLINE | ID: mdl-35329144

RESUMEN

This study investigated the combined effects of competition area (4 × 4, 6 × 6, and 8 × 8 m) and judo-specific training type (tachi-waza, ne-waza, and free randori) on physiological responses and perceived exertion in female judo athletes. In a within-subject design, 12 female subelite and elite athletes who competed at regional or national levels with a mean training background of 8.4 ± 0.5 years performed the experimental conditions (i.e., combats (viz., matches) featuring different area/training type combinations) in random order. The following measurements at different time points were chosen: blood lactate before and after each match; heart rate before, mean, and peak for each match; and rating of perceived exertion immediately after each match. Two-factor analysis of variance was used to compare between conditions, while Bonferroni post hoc test and magnitude of difference were used to measure significance. There was no main effect of training type or area size on lactate before each match, heart rate (HR) before each match, HR mean during each match, and rating of perceived exertion. Main effects of training type and area size were found for lactate after each event, with the values being greater in free randori compared to tachi-waza and ne-waza and in 4 × 4 m compared to 6 × 6 and 8 × 8 m area. Main effects of training type and area size were also found in peak heart rate, with lower values in ne-waza compared to free randori and tachi-waza and in 8 × 8 m compared to 4 × 4 m area. The results demonstrate that varying training modality and area size may alter physiological responses during female judo combats by putting stress on the cardiovascular system and increasing anaerobic glycolysis solicitation.


Asunto(s)
Artes Marciales , Esfuerzo Físico , Atletas , Femenino , Frecuencia Cardíaca/fisiología , Humanos , Ácido Láctico , Masculino , Artes Marciales/fisiología , Esfuerzo Físico/fisiología
20.
J Sports Med Phys Fitness ; 62(10): 1368-1374, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34821493

RESUMEN

BACKGROUND: Respiratory muscle training has been shown to provide positive effects for both health and performance purposes. The aim of this study was to evaluate the effects of a six-week period of nasal breathing on pulmonary function and cardio-respiratory fitness in young basketball players. METHODS: Thirty-four, male, basketball players were enrolled and assigned either to experimental group (EG) or to control group (CG). All participants were tested for Yo-Yo Intermittent Recovery level 1 (Yo-Yo IR1), Shuttle Sprint Test (SST), Forced Vitality Capacity (FVC), Forced Expiratory Volume in one second (FEV1) and Peak Expiratory Flow (PEF). EG group followed reduced breathing frequency training program focused on intermittent running exercises while performing nasal breathing. RESULTS: The main findings were significant interactions in Yo-Yo IR1 test, FVC, FEV1 and PEF (P<0.05) in favor of EG compared to CG. Conversely, no significant changes were detected between EG and CG in the SST total time. CONCLUSIONS: Young basketball players may benefit from nasal breathing protocol during their regular training practice leading remarkable improvements in both physical fitness and pulmonary function.


Asunto(s)
Rendimiento Atlético , Baloncesto , Carrera , Rendimiento Atlético/fisiología , Baloncesto/fisiología , Ejercicio Físico , Prueba de Esfuerzo , Humanos , Masculino , Aptitud Física/fisiología , Carrera/fisiología
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