Examinando por Autor "Viribay, Aitor"

Mostrando 1 - 3 de 3
  • Miniatura
    Ítem
    The influence of anthropometric variables on the performance of Eeite traditional rowers
    (Multidisciplinary Digital Publishing Institute (MDPI), 2024-07) Castañeda Babarro, Arkaitz; León Guereño, Patxi; Viribay, Aitor; Gutiérrez Santamaría, Borja; López Torre, Iker; Mielgo Ayuso, Juan
    Athletes’ anthropometry, and especially their body composition, plays an important role in sport performance in general and in Trainera rowing in particular. Rowers’ anthropometric and performance profiles may vary according to their position in the boat. The objectives of this study were to investigate the relationship between anthropometry, physical performance, physiological variables, and elite male rowers’ boat positions. Twenty elite male traditional rowers were assessed and categorized according to their boat position: either in the middle of the boat (M) (n = 9) or in the bow and stern positions (BS) (n = 11). Anthropometric measurements and body composition were obtained for each rower, and physical performance was measured by a 45-s supramaximal rowing test and a VO2max incremental test on a Concept II rowing ergometer. The results showed that the rowers in the middle were taller (186.6 ± 4.9 cm), and significant differences were also found between the two groups according to body mass (BS 72.3 ± 3.8 vs. M 85.4 ± 4.3) and peak power (BS 641.5 ± 84 vs. M 737 ± 47.1), mean power (BS 538.5 ± 48.4 vs. M 604.1 ± 42.3), and physiological parameters (p < 0.05), VO2max (BS 66.5 ± 4.9 vs. M 59.3 ± 6.7). It can be concluded that height could be associated with elite rowers’ performance and that a lower body mass index is related to better performance in bow and stern positions.
  • Miniatura
    Ítem
    Long‐term combined effects of citrulline and nitrate‐rich beetroot extract supplementation on recovery status in trained male triathletes: a randomized, double‐blind, placebo‐controlled trial
    (MDPI, 2022-01-04) Burgos, José; Viribay, Aitor; Calleja González, Julio; Fernández Lázaro, Diego; Olasagasti Ibargoien, Jurgi; Seco Calvo, Jesús; Mielgo Ayuso, Juan
    Citrulline (CIT) and nitrate‐rich beetroot extract (BR) are widely studied ergogenic aids. Nevertheless, both supplements have been studied in short‐term trials and separately. To the best of the authors’ knowledge, the effects of combining CIT and BR supplementation on recovery status observed by distance covered in the Cooper test, exercise‐induced muscle damage (EIMD) and an-abolic/catabolic hormone status have not been investigated to date. Therefore, the main purpose of this research was to assess the effect of the long‐term (9 weeks) mixture of 3 g/day of CIT plus 2.1 g/day of BR (300 mg/day of nitrates (NO3−)) supplementation on recovery by distance covered in the Cooper test, EIMD markers (urea, creatinine, AST, ALT, GGT, LDH and CK) and anabolic/catabolic hormones (testosterone, cortisol and testosterone/cortisol ratio (T/C)) in male trained triathletes. Thirty‐two triathletes were randomized into four different groups of eight triath-letes in this double‐blind, placebo‐controlled trial: placebo group (PLG), CIT group (CITG; 3 g/day of CIT), BR group (BRG; 2.1 g/day of BR (300 mg/day of NO3−)) and CIT‐BR group (CIT‐BRG; 3 g/day of CIT plus 2.1 g/day of BR (300 mg/day of NO3−)). Distance covered in the Cooper test and blood samples were collected from all participants at baseline (T1) and after 9 weeks of supplementation (T2). There were no significant differences in the interaction between group and time in EIMD markers (urea, creatinine, AST, ALT, GGT, LDH and CK) (p > 0.05). However, significant differences were observed in the group‐by‐time interaction in distance covered in the Cooper test (p = 0.002; η2p = 0.418), cortisol (p = 0.044; η2p = 0.247) and T/C (p = 0.005; η²p = 0.359). Concretely, significant differences were observed in distance covered in the Cooper test percentage of change (p = 0.002; η²p = 0.418) between CIT‐BRG and PLG and CITG, in cortisol percentage change (p = 0.049; η2p = 0.257and in T/C percentage change (p = 0.018; η2p = 0.297) between CIT‐BRG and PLG. In conclusion, the combination of 3 g/day of CIT plus 2.1 g/day of BR (300 mg/day of NO3−) supplementation for 9 weeks did not present any benefit for EIMD. However, CIT + BR improved recovery status by pre-venting an increase in cortisol and showing an increase in distance covered in the Cooper test and T/C.
  • Miniatura
    Ítem
    Relationship between training factors and injuries in stand-up paddleboarding athletes
    (MDPI AG, 2021-02) Castañeda Babarro, Arkaitz; Calleja González, Julio; Viribay, Aitor ; Fernández Lázaro, Diego; León Guereño, Patxi ; Mielgo Ayuso, Juan
    Stand-up paddleboarding (SUP) is an increasingly popular sport but, as in other sports, there is an injury ratio associated with practicing it. In other types of sport, some factors have been linked to the likelihood of suffering an injury, among which stretching, core training and resistance training may be considered the most significant. Therefore, the main aim of this study was to identify the training factors that could influence injuries suffered by participants in international SUP competitions. Ninety-seven questionnaires were collected from paddlers who participated in an international SUP circuit, with epidemiological data being gathered about injuries and different ques-tions related to the training undertaken. A multi-factor ANOVA test was used to identify the factors which influence the state of injury. Results showed that almost 60% of injuries occurred in the arms or in the upper thoracic region, around 65% of which were in tendons or muscles and, in almost half of cases, were related to overuse. Likewise, the results showed that athletes with injury performed fewer resistance training sessions per week (p = 0.028), over fewer months per year (p = 0.001), more weekly training sessions (p = 0.004) and, lastly, a greater volume of weekly training (p = 0.003) than athletes without injury. Moreover, the most important training factors that reduce the likelihood of suffering an injury were taken into account-in. particular, resistance training alone (p = 0.011) or together with CORE training (p = 0.006) or stretching (p = 0.012), and the dominant side of paddling (p = 0.032). In conclusion, resistance training would seem to reduce the likelihood of injury among SUP practitioners, and such benefits could be obtained by resistance training alone or in combination with CORE training or stretching