DeustoTeka Examinando por Autor "Mielgo Ayuso, Juan"

Examinando por Autor "Mielgo Ayuso, Juan"

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Anthropometric profile, body composition, and somatotype in stand-up paddle (Sup) boarding international athletes: a cross-sectional study
(ARAN Ediciones, 2020-10-13) Castañeda Babarro, Arkaitz; Viribay, Aitor; León Guereño, Patxi; Urdampilleta Otegui, Aritz; Mielgo Ayuso, Juan; Coca Núñez, Aitor
Introduction: the anthropometric characteristics of international stand-up paddle (SUP) boarders are relevant aspects when it comes to their performance. However, very little research has been carried out within this sport, almost none regarding the body composition and anthropometric characteristics of SUP practitioners. Therefore, the aim of this research will be to describe the anthropometric profile of international SUP boarders. Material and methods: a cross-sectional design in thirty-one international SUP boarders (34.2 ± 12.4 years). Height, body mass, 8 skinfolds, 2 bone diameters, and 5 perimeters were measured, and corrected perimeters were calculated by the same two level-2 internationally certified anthropometrists. Anthropometric measurements were taken following the International Society of Advancement of Kinanthropometry (ISAK) protocol. Body fat mass (FM) was calculated using Carter, Faulkner, Yuhasz, and Withers equations, whereas muscle mass (MM) was estimated using the Lee 2000 equation. Somatotype was calculated by applying the Heath and Carter equation. Bioimpedance (BIA) measurements were also recorded. Results: international SUP athletes had a body mass of 74.6 (6.6) kg, a body fat percentage of 7.6 % (2.1 %) (Carter), 11.3 % (3.5 %) (Faulkner), 7.6 % (2.1 %) (Yuhasz), and 9.0 % (3.6 %) (Whiters), and skinfold sums of 48.2 (20.6) mm for 6, and 57.8 (22.2) mm for 8 skinfolds. Muscle mass was 47.3 % (2.6 %) and somatotype was ecto-mesomorphic with values of 1.9 (0.9) for endomorphy, 5.4 (1.0) for mesomorphy, and 2.4 (0.9) for ectomorphy. BIA results for FM were 11.7 % (4.4 %), and for MM were 50.0 % (2.9 %). Conclusion: these results suggest that a low body fat percentage and high muscle mass are representative characteristics of international stand-up paddlers, as well as a balanced mesomorphic somatotype. According to these, a low skindfold sum and high arm muscle mass may represent key factors for performance in this sport because of their relation to acceleration and stroke force.
The effect of different cadence on paddling gross efficiency and economy in stand-up paddle boarding
(MDPI AG, 2020-07-07) Castañeda Babarro, Arkaitz; Santos Concejero, Jordan; Viribay, Aitor; Gutiérrez Santamaría, Borja; Mielgo Ayuso, Juan
Background: Due to the importance of energy eﬃciency and economy in endurance performance,it is important to know the inﬂuence of diﬀerent paddling cadences on these variables in the stand-up paddleboarding (SUP).The purpose of this study was todetermine the eﬀect of paddling at diﬀerent cadences on the energy eﬃciency, economy, and physiological variables of international SUP race competitors. Methods: Ten male paddlers (age 28.8 ± 11.0 years; height 175.4±5.1 m; body mass 74.2±9.4 kg) participating in international tests carried out two test sessions. In the ﬁrst one, an incremental exercise test was conducted to assess maximal oxygen uptake and peak power output (PPO). On the second day, they underwent 3 trials of 8 min each at 75% of PPO reached in the ﬁrst test session. Three cadences were carried out in diﬀerent trials randomly assigned between 45–55 and 65 strokes-min−1 (spm). Heart rate (HR), blood lactate, perceived sense of exertion (RPE), gross eﬃciency, economy, and oxygen uptake (VO2) were measured in the middle (4-min) and the end (8-min) of each trial. Results: Economy (45.3±5.7 KJ·l−1 at 45 spm vs. 38.1±5.3 KJ·l−1 at 65 spm; p = 0.010) and gross eﬃciency (13.4±2.3% at 45 spm vs. 11.0±1.6% at 65 spm; p = 0.012) was higher during de 45 spm condition than 65 spm in the 8-min. Respiratory exchange ratio (RER) presented a lower value at 4-min than at 8-min in 55 spm (4-min, 0.950±0.065 vs. 8-min, 0.964±0.053) and 65 spm cadences (4-min, 0.951 ± 0.030 vs. 8-min, 0.992 ± 0.047; p < 0.05). VO2, HR, lactate, and RPE were lower (p < 0.05) at 45 spm (VO2, 34.4±6.0 mL·kg−1·min−1; HR, 161.2 ± 16.4 beats·min−1; lactate, 3.5±1.0 mmol·l−1; RPE, 6.0 ± 2.1) than at 55 spm (VO2, 38.6±5.2 mL·kg−1·min−1; HR, 168.1±15.1 beats·min−1; lactate, 4.2±1.2 mmol·l−1; RPE, 6.9±1.4) and 65 spm (VO2, 38.7±5.9 mL·kg−1·min−1; HR, 170.7±13.0 beats·min−1; 5.3±1.8 mmol·l−1; RPE, 7.6±1.4) at 8-min. Moreover, lactate and RPE at 65 spm was greater than 55 spm (p < 0.05) at 8-min. Conclusion: International male SUP paddlers were most eﬃcient and economical when paddling at 45 spm vs. 55 or 65 spm, conﬁrmed by lower RPE values, which may likely translate to faster paddling speed and greater endurance.
The effect of dragon boating on the quality of life for breast cancer survivors: a systematic review
(Multidisciplinary Digital Publishing Institute (MDPI), 2024-06-27) Herrero Zapirain, Igor; Álvarez Pardo, Sergio; Castañeda Babarro, Arkaitz; Moreno Villanueva, Adrián; Mielgo Ayuso, Juan
Physical activity improves breast cancer-related symptoms in women and decreases cancer-related mortality. The main objective of this systematic review is to synthesize and analyze the evidence of the effect of dragon boating on the quality of life of female breast cancer survivors. A systematic review based on the PRISMA method was conducted using four databases (Web of Science, Scopus, Cochrane and Pubmed). The search phrase used was “Breast Cancer” AND “Dragon Boat” AND “Quality of Life”. The search was conducted in June 2024. The PEDro method was used to ensure the quality of the publications. A total of 77 articles published until 2024 were selected, of which 10 met the inclusion criteria of assessing the application of dragon boating and that used a validated instrument to assess quality of life. There is no homogeneity in terms of the instrument used to measure QOL. The SF-36 was the most commonly used, followed by the FACT-B and the EORTC QLQ-C30. Five out of ten articles compared the improvement in quality of life between dragon boating and other physical activities, while 6 out of 10 analyzed the pre–post effect of dragon boat use. Dragon boating is a physical activity alternative that improves the quality of life of breast cancer survivors and reduces the symptomatology caused by the disease and its treatments. As dragon boat programs are applied over a longer period of time, the improvements in quality of life are greater. When compared with other types of physical activity, dragon boating does not show significant differences that position it as a better option for this population.
Effect of ten weeks of creatine monohydrate Plus HMB supplementation on athletic performance tests in elite male endurance athletes
(MDPI, 2020-01-10) Fernández de Landa, Julen; Fernández Lázaro, Diego; Calleja González, Julio; Caballero García, Alberto; Córdova Martínez, Alfredo; León Guereño, Patxi; Mielgo Ayuso, Juan
Creatine monohydrate (CrM) and β-hydroxy β-methylbutyrate (HMB) are common ergogenic aids in the field of sports and are frequently used in an isolated way. However, there are a few studies that have investigated the effect of combining both supplements on different variables related to performance, with controversial results. Therefore, the main purpose of this study was to determine the efficacy and the degree of potentiation of 10 weeks of CrM plus HMB supplementation on sports performance, which was measured by an incremental test to exhaustion in elite male traditional rowers. In this placebo-controlled, double-blind trial, 10-week study, participants (n = 28) were randomized to a placebo group (PLG; n = 7), CrM group (0.04 g/kg/day of CrM; n = 7), HMB group (3 g/day of HMB; n = 7) and CrM-HMB group (0.04 g/kg/day of CrM plus 3 g/day of HMB; n = 7). Before and after 10 weeks of different treatments, an incremental test was performed on a rowing ergometer to calculate the power that each rower obtained at the anaerobic threshold (WAT), and at 4 mmol (W4) and 8 mmol (W8) of blood lactate concentration. There were no significant differences in WAT and W4 among groups or in body composition. However, it was observed that the aerobic power achieved at W8 was significantly higher in the CrM-HMB group than in the PLG, CrM and HMB groups (p < 0.001; η2p = 0.766). Likewise, a synergistic effect of combined supplementation was found for the sum of the two supplements separately at WAT (CrM-HMBG = 403.19% vs. CrMG+HMBG = 337.52%), W4 (CrM-HMBG = 2736.17% vs. CrMG+HMBG = 1705.32%) and W8 (CrM-HMBG = 1293.4% vs. CrMG+HMBG = 877.56%). In summary, CrM plus HMB supplementation over 10 weeks showed a synergistic effect on aerobic power (measured as WAT, W4, and W8) during an incremental test but had no influence muscle mass.
Effects of 120 g/h of carbohydrates intake during a mountain marathon on exercise-induced muscle damage in elite runners
(MDPI AG, 2020-05-11) Viribay, Aitor; Arribalzaga Petrozzi, María Soledad; Mielgo Ayuso, Juan; Castañeda Babarro, Arkaitz; Seco Calvo, Jesús; Urdampilleta Otegui, Aritz
Background—exercise-induced muscle damage (EIMD) and internal exercise load are increased after competing in ultraendurance events such as mountain marathons. Adequate carbohydrate (CHO) intake during exercise optimizes athletic performance and could limit EIMD, reduce internal exercise load and, thus, improve recovery. Therefore, the aim of this study was to research into and compare the effects of high CHO intake (120 g/h) in terms of CHO intake recommendation (90 g/h) and regular CHO intake performed by ultraendurance athletes (60 g/h) during a mountain marathon, on exercise load and EIMD markers (creatine kinase (CK), lactate dehydrogenase (LDH), glutamic oxaloacetic transaminase (GOT), urea and creatinine). Materials and Methods—a randomized trial was carried out on 20 male elite runners who had previously undertaken nutritional and gut training, and who consumed different CHO dosages according to experimental (EXP— 120 g/h), control (CON— 90 g/h) and low CHO intake (LOW— 60 g/h) groups during a ~4000 m cumulative slope mountain marathon. EIMD markers were analyzed before the race and 24 h afterwards. Internal exercise load was calculated based on rate of perceived exertion (RPE) during and after the marathon event. Results—internal exercise load during the mountain marathon was significantly lower (p = 0.019; η2p = 0.471) in EXP (3805 ± 281 AU) compared to LOW (4688 ± 705 AU) and CON (4692 ± 716 AU). Moreover, results revealed that the EXP group evidenced significantly lower CK (p = 0.019; η2p = 0.373), LDH (p < 0.001; η2p = 0.615) and GOT (p = 0.003; η2p = 0.500) values 24 h after the mountain marathon race compared to LOW and CON. Along these lines, EIMD and exercise load evidenced a close correlation (R = 0.742; p < 0.001). Conclusion: High CHO intake (120 g/h) during a mountain marathon could limit the EIMD observed by CK, LDH and GOT and internal exercise load compared to CHO ingestion of 60 and 90 g/h.
Effects of 120 vs. 60 and 90 g/h carbohydrate intake during a trail marathon on neuromuscular function and high intensity run capacity recovery
(MDPI AG, 2020-07-15) Urdampilleta Otegui, Aritz; Arribalzaga Petrozzi, María Soledad; Viribay, Aitor; Castañeda Babarro, Arkaitz; Seco Calvo, Jesús; Mielgo Ayuso, Juan
Background: Current carbohydrate (CHO) intake recommendations for ultra-trail activities lasting more than 2.5 h is 90 g/h. However, the benefits of ingesting 120 g/h during a mountain marathon in terms of post-exercise muscle damage have been recently demonstrated. Therefore, the aim of this study was to analyze and compare the effects of 120 g/h CHO intake with the recommendations (90 g/h) and the usual intake for ultra-endurance athletes (60 g/h) during a mountain marathon on internal exercise load, and post-exercise neuromuscular function and recovery of high intensity run capacity. Methods: Twenty-six elite trail-runners were randomly distributed into three groups: LOW (60 g/h), MED (90 g/h) and HIGH (120 g/h), according to CHO intake during a 4000-m cumulative slope mountain marathon. Runners were measured using the Abalakov Jump test, a maximum a half-squat test and an aerobic power-capacity test at baseline (T1) and 24 h after completing the race (T2). Results: Changes in Abalakov jump time (ABKJT), Abalakov jump height (ABKH), half-squat test 1 repetition maximum (HST1RM) between T1 and T2 showed significant differences by Wilcoxon signed rank test only in LOW and MED (p < 0.05), but not in the HIGH group (p > 0.05). Internal load was significantly lower in the HIGH group (p = 0.017) regarding LOW and MED by Mann Whitney u test. A significantly lower change during the study in ABKJT (p = 0.038), ABKH (p = 0.038) HST1RM (p = 0.041) and in terms of fatigue (p = 0.018) and lactate (p = 0.012) within the aerobic power-capacity test was presented in HIGH relative to LOW and MED. Conclusions: 120 g/h CHO intake during a mountain marathon might limit neuromuscular fatigue and improve recovery of high intensity run capacity 24 h after a physiologically challenging event when compared to 90 g/h and 60 g/h.
Effects of a targeted concurrent training program on the exercise adherence in female breast cancer survivors: a randomized controlled trial
(Multidisciplinary Digital Publishing Institute (MDPI), 2025-02) Herrero Zapirain, Igor; Álvarez Pardo, Sergio; Castañeda Babarro, Arkaitz; García Heras, Fabio; Pons Llanas, Olga; Oliete Ramírez, Elena; Mielgo Ayuso, Juan
Background/Objectives: Increased time and adherence to physical activity, as well as increased intensity of physical activity, is one of the determining factors in improving survival and avoiding disease recurrence in female breast cancer survivors. The study aims to determine the effect of a 12-session concurrent training program on increasing moderate/vigorous physical activity time in this population. Methods: A total of (N = 72) female breast cancer survivors were randomized into an intervention group and a control group to perform a 12-session concurrent training program. The GPAQ questionnaire measured the time and intensity of physical activity and work they performed before starting the program and three months after completion of the program. Results: A total of (N = 15) women in the intervention group and (N = 22) women in the control group completed the questionnaire before and three months after completing the program. A significant increase in moderate, vigorous, and combined physical activity (PA) was observed in the intervention group (IG) in comparison to the control group (CG) at three months following the intervention. While these results are promising, it is important to note that the observed improvements in PA adherence reflect associations rather than direct causal relationships. While these changes are statistically significant, they also reflect meaningful improvements in clinical outcomes. A notable finding was the significant decrease in sedentary time observed in the IG, which is likely to have contributed to the observed improvement in adherence. Conclusions: Concurrent training shows an increment in the time and intensity of daily physical activity performed by breast cancer survivors, which is a determining aspect of the survival and non-relapse of the disease in this population
Exercise-induced muscle damage and cardiac stress during a marathon could be associated with dietary intake during the week before the race
(MDPI, 2020-01-25) Mielgo Ayuso, Juan; Calleja González, Julio; Refoyo, Ignacio; León Guereño, Patxi; Córdova Martínez, Alfredo; Coso Garrigós, Juan del
Adequate food intake is important prior to endurance running competitions to facilitate adequate exercise intensity. However, no investigations have examined whether dietary intake could prevent exercise-induced muscle damage (EIMD) and cardiac stress (EICS). Thus, this study’s objective was to determine the associations between EIMD, EICS and endurance athlete diets one week before a marathon race. Sixty-nine male runners participated in this study. Food intake during the week prior to the race was collected through a seven-day weighed food record. Dietary intake on race day was also recorded. At the end of the marathon, blood samples were drawn to determine serum creatine kinase (CK) and myoglobin, and muscle–brain isoform creatine kinase (CK-MB), prohormone of brain natriuretic peptide (NT-proBNP), cardiac troponin I (TNI), and cardiac troponin T (TNT) concentration as markers of EIMD and EICS, respectively. To determine the association between these variables, a stepwise regression analysis was carried out. The dependent variable was defined as EIMD or EICS and the independent variables were defined as the number of servings within each different food group. Results showed that the intake of meat during the previous week was positively associated with post-race CK (Standardized Coefficients (β) = 0.643; p < 0.01) and myoglobin (β = 0.698; p < 0.001). Vegetables were negatively associated the concentration of post-race CK (β = −0.482; p = 0.002). Butter and fatty meat were positively associated with NT-proBNP (β = 0.796; p < 0.001) and TNI (β = 0.396; p < 0.001) post-marathon values. However, fish intake was negatively associated with CK (β = −0.272; p = 0.042), TNI (β = −0.593; p < 0.001) and TNT (β = −0.640; p = 0.002) post-marathon concentration. Olive oil was negatively associated with TNI (β = −0.536; p < 0.001) and TNT (β = −0.415; p = 0.021) values. In conclusion, the consumption of meat, butter, and fatty meat might be associated with higher levels of EIMD and EICS. On the other hand, fish, vegetables, and olive oil might have a protective role against EIMD and EICS. The selection of an adequate diet before a marathon might help to reduce some of the acute burdens associated with marathon races.
Impact of a short-term nitrate and citrulline co-supplementation on sport performance in elite rowers: a randomized, double-blind, placebo-controlled crossover trial
(Springer Science and Business Media Deutschland GmbH, 2024-02-10) Viribay, Aitor; Alcántara Alcántara, Juan Manuel; López Torre, Iker; Mielgo Ayuso, Juan; Castañeda Babarro, Arkaitz
Purpose: Citrulline (CIT) and beetroot extract (BR) have separately shown benefits in rowing performance-related outcomes. However, effects of combined supplementation remain to be elucidated. The main purpose of this research was to study the effects of 1 week of daily co-supplementation of 3.5 g BR (500 mg NO3−) plus 6 g CIT on aerobic performance, maximal strength, and high-intensity power and peak stroke in elite male rowers compared to a placebo and to a BR supplementation. Methods: 20 elite rowers participated in this randomized, double-blind, placebo-controlled crossover trial completing 1 week of supplementation in each group of study: Placebo group (PLAG); BR group (BRG); and BR + CIT group (BR-CITG). 3 main physical tests were performed: aerobic performance, Wingate test and CMJ jump, and metabolic biomarkers and physiological outcomes were collected. Results: The Wingate all-out test showed no between-condition differences in peak power, mean power, relative power, or fatigue index (P > 0.05), but clearance of lactate was better in BR-CITG (P < 0.05). In the performance test, peak power differed only between PLAG and BR-CITG (P = 0.036), while VO2peak and maximum heart rate remained similar. CMJ jumping test results showed no between-condition differences, and blood samples were consistent (P > 0.200). Conclusion: Supplementation with 3.5 g of BR extract plus 6 g of CIT for 7 days improved lactate clearance after Wingate test and peak power in a performance test. No further improvements were found, suggesting longer period of supplementation might be needed to show greater benefits.
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.
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.
Relationship between training factors and injuries in stand-up paddleboarding athletes
(MDPI AG, 2021-01-29) 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
Relationship of carbohydrate intake during a single-stage one-day ultra-trail race with fatigue outcomes and gastrointestinal problems: a systematic review
(MDPI AG, 2021-05-27) Arribalzaga Petrozzi, María Soledad; Viribay, Aitor; Calleja González, Julio; Fernández Lázaro, Diego; Castañeda Babarro, Arkaitz; Mielgo Ayuso, Juan
Due to the high metabolic and physical demands in single-stage one-day ultra-trail (SOUT) races, athletes should be properly prepared in both physical and nutritional aspects in order to delay fatigue and avoid associated difficulties. However, high carbohydrate (CHO) intake would seem to increase gastrointestinal (GI) problems. The main purpose of this systematic review was to evaluate CHO intake during SOUT events as well as its relationship with fatigue (in terms of internal exercise load, exercise-induced muscle damage (EIMD) and post-exercise recovery) and GI problems. A structured search was carried out in accordance with PRISMA guidelines in the following: Web of Science, Cochrane Library and Scopus databases up to 16 March 2021. After conducting the search and applying the inclusion/exclusion criteria, eight articles in total were included in this systematic review, in all of which CHO intake involved gels, energy bars and sports drinks. Two studies associated higher CHO consumption (120 g/h) with an improvement in internal exercise load. Likewise, these studies observed that SOUT runners whose intake was 120 g/h could benefit by limiting the EIMD observed by CK (creatine kinase), LDH (lactate dehydrogenase) and GOT (aspartate aminotransferase), and also improve recovery of high intensity running capacity 24 h after a trail marathon. In six studies, athletes had GI symptoms between 65–82%. In summary, most of the runners did not meet CHO intake standard recommendations for SOUT events (90 g/h), while athletes who consumed more CHO experienced a reduction in internal exercise load, limited EIMD and improvement in post-exercise recovery. Conversely, the GI symptoms were recurrent in SOUT athletes depending on altitude, environmental conditions and running speed. Therefore, a high CHO intake during SOUT events is important to delay fatigue and avoid GI complications, and to ensure high intake, it is necessary to implement intestinal training protocols.

Examinando por Autor "Mielgo Ayuso, Juan"

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