View clinical trials related to Athletes.
Filter by:Kayak polo (KP) is a sport that, as a breviary, can be defined as the union between water polo and canoeing. The objective of this study is to compare anthropometric parameters, joint assessment, strength and functional capacity between two groups of KP players from the Valencian Community. The sample will be divided into a Sub21 group and a Senior group. Anthropometric variables (body mass index [BMI], percentage of fat mass, waist - hip index [CHF], body perimeters ...), shoulder assessment (Range of movement in rotations, Scapular Dyskinesis Test [SDT]) will be assessed. glenohumeral instability ...), hip assessment (modified Thomas test), strength (Hand Grip Strength test and upper limb thrust), lower limb power (Counter Movement Jump [CMJ]) and functional capacity (1 'push-ups for limbs upper and 1 'Sit-to-Stand test for lower limbs).
Many elite athletes are submitted to frequent rapid weight loss periods to meet their competition weight category and then experience weight cycling (lowing and gaining weight regularly). This weight cycling induce severe temporary energetic and metabolic changes and when repeated over time can lead to permanent metabolic adaptations that might favor metabolic disorders, body weight gain and body composition changes (favoring fat mass). The exact effects of this weight cycling are not clear yet, especially in terms of metabolic, energetics, nutritional functional and psychological impacts. Better understand these adaptations and their variations during weight loss and weight gain in regular weight cycler is of main importance to prevent these athletes for future health issues. The aim of the present project if to assess these metabolic, functional, energetic and nutritional adaptations during weight loss, weight stable and weight gain periods in athletes experiencing regular weight cycling.
In order to enhance the effects of training and improve performance, athletes often turn to nutritional supplements. According to the American College of Sports Medicine (ACSM), adequate selection of nutrients and supplements, adjusting intake according to the exercise performed, is necessary for optimal performance in athletes. The most recent consensus from the International Society for Sport Nutrition (ISSN), The American Dietetic Association (ADA) and ACSM on sport nutrition have been reviewed by Potgieter, stating that a single guideline is not sufficient to elaborate an individualized and focused nutritional management of athletes. Moreover, apart from the abovementioned guidelines, sport-specific nutritional strategies, including quantity, structure and timing of food (or supplement) intake should also be followed in order to maximize sports performance and recovery. The importance of dietary supplementation is of particular interest in swimming, where athletes usually undertake a training approach characterized by a high volume of training during aerobic development and high intensity training during the competition phase, coupled with strength training. The size and market value of the sports supplement industry is continuing to grow, with health, safety and contamination concerns becoming more pressing. Therefore, it is important to identify dietary supplements that are safe and effective in supporting swimmers. Rice germ could be a safe and effective dietary supplement for swimmers. In the last few years, scientific research is trying to use waste rice products in the pharmaceutical and nutraceutical fields, considering the potential value of nutrients they contain. In particular, rice germ has a high protein and essential amino acids, such as lysine, histidine and valine content, a good lipid content (with prevalence of mono- unsaturated and polyunsaturated fatty acids - in particular linoleic and linolenic essential fatty acids and oleic acid), an high fiber presence; regarding water-soluble vitamins, rice germ has high content if thiamine (B1) and pyridoxine (B6), while vitamin E prevails for liposoluble vitamins. About minerals, are most present iron and magnesium. All these nutrients play important roles in maintaining the health of athletes. Currently, despite these characteristics, no study has evaluated the potential beneficial effect of RG supplementation on athletes. Given this background, the purpose of this investigation was to ascertain whether performance in swimmers could be improved by a 5-weeks of RG supplementation.
Swimming is a sport that includes different styles and distances, which can expose the athlete to different stressors that can affect performance and generate conditions such as overtraining. This is due to the lack of integration of systematic recovery periods during training programs. A very used recuperative feature in swimming is massage. Recent studies have shown that the application of short duration is sufficient to obtain the desired effects and it is possible that its application systematized over a period of time may have greater effects on performance. The aims of this study were to evaluate the effects of deep and superficial massage on clinical, functional and performance issues; to identify its short-term effects on clinical and functional variables and to investigate the association between training load and the swimmer's perceptions.
Introduction. The high jump is a discipline that use the shortening-stretching cycle. Plyometric exersices emply an eccentric load followed by concentric contraction. Powerinstep is a tool training by means of weigthed weigth whose objective is improving performance in athletes. Aim. Evaluate efficacy of plyometric training with Powerinstep® in lower limbs, in the performance improvement in professional height jumpers from 18 to 40 years old. Study design. Non-randomized clinical trial, single bind, with follow-up period. Methods. 20 athletes will be recruited, that will be randomized to the two study groups: experimental (they carry out a plyometric training programme with Powerinstep) and control (won't be made a intervention on the subjects included in this group). The intervention consists of 6 week, with 2 session for week of 15 minutes duration each. The dependent variables will be the height of the jump, the time of flight, the reaction speed and the impulse force, measures though a pressure platform (model T-PLATE), employing Countermovement Jump, Abalakov and Drop Jump tests. We will make a descriptive statistical analysis. The Shapiro-Wilk statistical test will be used to calculate normality. Trough t-student test of repeated measures and an ANOVA of repeated measures will be calculated the difference between distinct assessment (preintervention, postintervention and follow-up) and the effect intra and inter subject, respectively. Expected results. We want to observe the changes in performance improvement in height jumpers.
Previous evidence showed hyperbaric oxygen can enhance aerobic and anaerobic performance during the exposure. The effect of continuous exposure of hyperbaric oxygen on performance was never evaluated.
Regular sustained physical activity creates a cardiac remodelling : it is athlete's heart. In our preliminary work published in 2016, the investigators demonstrated in a small population of triathletes that there is also a vascular remodelling named athlete's artery. Moreover, the investigators know that left ventricle and aorta behave together like a couple. So they want to study by Cardiovascular Magnetic Resonance Imaging the impact of triathlon on the cardiac AND aortic remodelling.
This study was performed to evaluate the efficacy of weekly vitamin D supplementation on athletic performance in Iranian athletes
Pulmonary vein isolation (PVI) has become a common and effective treatment for paroxysmal and persistent atrial fibrillation (AF), particularly in patients with drug-refractory disease. Intense endurance exercise is a known risk factor for atrial fibrillation. In general, these athletes poorly tolerate most common antiarrhythmic drugs used for atrial fibrillation control and often PVI is recommended for durable management. While the efficacy of PVI in athletes is similar to the general AF population, some athletes with lone atrial fibrillation report a reduction in subjective exertional capacity following PVI, despite maintenance of sinus rhythm and absence of pulmonary vein stenosis on imaging. The investigators hypothesize that PVI may alter pulmonary vein function and affect peak exercise performance. The investigators propose a small, prospective study of endurance athletes undergoing antral PVI for treatment of lone atrial fibrillation. Peak metabolic performance and pulmonary vein function will be assessed pre- and post-PVI by metabolic stress testing and cardiac MRI, respectively.
Phototherapy is a therapeutic resource of increasing use in the last decade. The photobiomodulatory effects are commonly produced by means of low intensity lasers or LED emitting diodes, and can be used at different wavelengths. These light sources are divergent as to coherence, but produce equivalent tissue effects. The application of laser or LED light is able to induce biochemical changes in tissues, allowing for inhibitory or stimulating effects. These responses are associated to a cascade of cellular reactions, which favor the absorption of enzymes by cytochrome c oxidase, generating physiological responses that lead to decreased production of reactive oxygen species and increased synthesis of adenosine triphosphate (ATP). The application of this therapeutic resource brings ergogenic and protective benefits in muscular performance. The use of LED as a light source is promising because of its low cost, but there are no enough studies that support this use in athletes, with a focus on performance improvement. In addition to the deficiency of the sample, there is also no consensus regarding the use of different wavelengths for LED in the literature, thus opening gaps for the best protocol for the application of this technique. Therefore, a study that evaluates the use of LED in athletes, with different wavelengths, to improve performance is necessary. Hypothesis: It is hypothesized that the LED application is capable of improving athletes performance in terms of increased fatigue resistance, increased strength and power, increased muscle recruitment, and optimized oxygen demand. It is also expected that the results generated in this study can contribute to and increase the resources used by physiotherapists within the clinical-sports field, contributing to the post-training recovery, as well as the more effective physical performance in competitive activities.