@ubo.cl
Universidad Bernardo O'Higgins
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Exal Garcia-Carrillo, Rodrigo Ramirez-Campillo, Mikel Izquierdo, Ragab K. Elnaggar, José Afonso, Luis Peñailillo, Rodrigo Araneda, Daniela Ebner-Karestinos, and Urs Granacher
MDPI AG
The aim of this systematic review was to assess the effects of plyometric-jump training (PJT) on the physical fitness of youth with cerebral palsy (CP) compared with controls (i.e., standard therapy). The PRISMA 2020 guidelines were followed. Eligibility was assessed using the PICOS approach. Literature searches were conducted using the PubMed, Web of Science, and SCOPUS databases. Methodological study quality was assessed using the PEDro scale. Data were meta-analyzed by applying a random-effects model to calculate Hedges’ g effect sizes (ES), along with 95% confidence intervals (95% CI). The impact of heterogeneity was assessed (I2 statistic), and the certainty of evidence was determined using the GRADE approach. Eight randomized-controlled studies with low-to-moderate methodological quality were included, involving male (n = 225) and female (n = 138) youth aged 9.5 to 14.6 years. PJT interventions lasted between 8 and 12 weeks with 2–4 weekly sessions. Compared with controls, PJT improved the muscle strength (ES = 0.66 [moderate], 95% CI = 0.36–0.96, p < 0.001, I2 = 5.4%), static (ES = 0.69 [moderate], 95% CI= 0.33–1.04, p < 0.001, I2 = 0.0%) and dynamic balance (ES = 0.85 [moderate], 95% CI = 0.12–1.58, p = 0.023, I2 = 81.6%) of youth with CP. Therefore, PJT improves muscle strength and static and dynamic balance in youth with CP compared with controls. However, more high-quality randomized-controlled trials with larger sample sizes are needed to provide a more definitive recommendation regarding the use and safety of PJT to improve measures of physical fitness.
Exal Garcia-Carrillo, Bruno Silva, Nikolaos Zaras, Jairo Azocar-Gallardo, Rodrigo Yáñez-Sepúlveda, and Rodrigo Ramirez-Campillo
Termedia Sp. z.o.o.
Exal Garcia-Carrillo, Rodrigo Ramirez-Campillo, Rohit K. Thapa, José Afonso, Urs Granacher, and Mikel Izquierdo
Springer Science and Business Media LLC
Abstract Background Upper-body plyometric training (UBPT) is a commonly used training method, yet its effects on physical fitness are inconsistent and there is a lack of comprehensive reviews on the topic. Objective To examine the effects of UBPT on physical fitness in healthy youth and young adult participants compared to active, specific-active, and passive controls. Methods This systematic review followed PRISMA 2020 guidelines and utilized the PICOS framework. PubMed, WOS, and SCOPUS were searched. Studies were assessed for eligibility using the PICOS framework. The effects of UBPT on upper-body physical fitness were assessed, including maximal strength, medicine ball throw performance, sport-specific throwing performance, and upper limb muscle volume. The risk of bias was evaluated using the PEDro scale. Means and standard deviations were used to calculate effect sizes, and the I2 statistic was used to assess heterogeneity. Publication bias was assessed using the extended Egger's test. Certainty of evidence was rated using the GRADE scale. Additional analyses included sensitivity analyses and adverse effects. Results Thirty-five studies were included in the systematic review and 30 studies in meta-analyses, involving 1412 male and female participants from various sport-fitness backgrounds. Training duration ranged from 4 to 16 weeks. Compared to controls, UBPT improved maximal strength (small ES = 0.39 95% CI = 0.15–0.63, p = 0.002, I2 = 29.7%), medicine ball throw performance (moderate ES = 0.64, 95% CI = 0.43–0.85, p < 0.001, I2 = 46.3%), sport-specific throwing performance (small ES = 0.55, 95% CI = 0.25–0.86, p < 0.001, I2 = 36.8%), and upper limbs muscle volume (moderate ES = 0.64, 95% CI = 0.20–1.08, p = 0.005, I2 = 0.0%). The GRADE analyses provided low or very low certainty for the recommendation of UBPT for improving physical fitness in healthy participants. One study reported one participant with an injury due to UBPT. The other 34 included studies provided no report measure for adverse effects linked to UBPT. Conclusions UBPT interventions may enhance physical fitness in healthy youth and young adult individuals compared to control conditions. However, the certainty of evidence for these recommendations is low or very low. Further research is needed to establish the optimal dose of UBPT and to determine its effect on female participants and its transfer to other upper-body dominated sports.
Exal Garcia-Carrillo, Rodrigo Yáñez-Sepúlveda, Guillermo Cortés-Roco, Rodrigo Ramirez-Campillo, and Mikel Izquierdo
SciELO Agencia Nacional de Investigacion y Desarrollo (ANID)
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Exal Garcia-Carrillo and Rodrigo Ramirez-Campillo
Universidad de Alicante
Tapering is used to maximize performance and reduce fatigue levels before athletic competitions. However, scientific evidence regarding Paralympic athletes is scarce. Moreover, no study has assessed the effects of tapering practices on performance in a world champion female Paralympic shot putter (FPSP). Therefore, the aim of this study was to assess the effects of a short tapering period on the performance of an elite FPSP. A world champion FPSP (sport class F54; age 42.2 y; body mass 74 kg; height 1.67 m) was monitored during both overload (2 weeks) and tapering (2 weeks; training volume and intensity decreased) blocks previous to Dubai 2019 World Para Athletics Championships. The internal training load (ITL) (through session rating of perceived exertion) and self-reported wellbeing (using a questionnaire) were assessed daily. Shot put performance was assessed at the beginning and after tapering. The ITL decreased 37.9% with tapering, shot put performance increased 7.6%, there were no differences between weekly wellness scores. No significant correlations were found between ITL and wellbeing indicators. It was concluded that two weeks of tapering induced a rather large improvement in shot put performance. Surprisingly, self-reported wellbeing did not improve with taper as expected.