Introduction. The objectives of this systematic review were to identify the volleyball external loads values in the literature and to verify the applicability of different means of quantification and monitoring of these variables during training sessions and matches. Material and methods: This systematic review was produced following the PRISMA statement recommendations, and the search for publications was carried out in the databases PubMed/NCBI, SportDiscus via EBSCOhost, SciELO. 12 studies meet the criteria and were included in this review. Results: The most used tool for quantification, monitoring and evaluation of external loads are video recording and manual or semi-automatic counting of jumps and distance covered and, more recently, the use of inertial measurements unit. The middle blocker has the highest high jump load, outside hitters jump closer to the maximum more often and setters have a high demand of medium height jumps. Conclusions: Match and training jump loads seem to be similar, and sessions that involve block or attack have a higher jump load. In professional male volleyball, training is planned with variation in training loads according to the period of the sea-son and according to the days of the week before and after games.

Zecchin, A, Puggina, EF, Hortobágyi, T, and Granacher, U. Association between foundation strength and weightlifting exercises in highly trained weightlifters: support for a general strength component. J Strength Cond Res XX(X): 000–000, 2022—In addition to specific weightlifting exercises (i.e., clean and jerk and snatch), foundation strength exercises (i.e., overhead press, front squat, and deadlift) constitute an integral part of the weightlifters' training regime. The unexamined concept behind this training plan is that foundation strength exercises are associated with clean and jerk and snatch performance, implying the existence of a general strength component. We thus determined the relationship between performance in foundation strength exercises (overhead press, front squat, and deadlift) and weightlifting exercises (clean and jerk and snatch) in weightlifters. Well-trained weightlifters (N = 19, age: 26.8 ± 4.4 years; body mass index: 27.6 ± 2.3 kg·m⁻²; and training history: 4.6 ± 0.8 years) performed 1 repetition maximum tests (1RM) in foundation strength and weightlifting exercises, over 14 days, in a randomized order. We observed significant correlations in 1RM performance between the overhead press and snatch (r = 0.69), front squat and snatch (r = 0.73), overhead press and clean and jerk (r = 0.67), and front squat and clean and jerk (r = 0.72, all r values: p < 0.01). No significant correlations were found for 1RM performance between the snatch and deadlift or between the clean and jerk and deadlift (r-range: 0.20–0.58; p > 0.05). Stepwise linear regression revealed that 1RM performance in the overhead press and front squat explained 62% of the variance in snatch 1RM performance (F = 5.51; p < 0.04). Overhead press and front squat 1RM performance explained 59% of the variance in the clean and jerk 1RM performance (F = 5.14; p < 0.04). Our results demonstrate the existence of a general strength component between selected foundation strength exercises and weightlifting performance. However, the use of the front squat and overhead press to increase 1RM performance in weightlifting exercises needs to be determined in future research using a different methodological approach (i.e., longitudinal protocols), given that the observed correlations do not necessarily imply causation.

The 2-minutes walking test (2-MWT) is a valid and reliable test that has a high correlation with the distance walked in the 6-minutes walking test (6-MWT). However, to date, no study has determined the relationship between 2-MWT performance and the aerobic fitness indices obtained during a maximal incremental test to confirm if this test is a valid surrogate of aerobic fitness in apparently healthy older adults. The main objective of this work was to identify the factors associated to the performance in the 2-MWT, including aerobic fitness, functional and spatial-temporal gait parameters. Seventeen elderly adults performed a maximal incremental cycling test to determine maximum oxygen consumption (VO_2max) and ventilatory thresholds (VT1 and VT2), two static standing balance tests with open and close eyes, a 5-times sit-to-stand test (5-TSTS), a handgrip test, and a 2-MWT on three different days over 2 weeks. No correlations were found between aerobic fitness indices and the distance covered in 2-MWT, but significant moderate correlations were found between the distance covered in 2-MWT and the time to perform the 5-TSTS (rho = −0.49) and with stride length (rho = 0.52) during the test. In conclusion, the 2-MWT does not seem a good test to assess aerobic capacity while it showed to be associated to the 5-TSTS performance of the elderly.

Article: Two days of simulated CrossFit competition affect autonomic nervous system but not anaerobic power or fatigue - The Journal of Sports Medicine and Physical Fitness 2021 Dec 21 - Minerva Medica - Journals

O presente estudo teve como objetivo revisar sobre os aspectos que possam relacionar as concepções acerca da imagem corporal (IC), a prática de exercícios físicos, bullying e transtornos alimentares (TA) em adultos. Trata-se de uma revisão sistemática. Foi realizada uma busca de artigos sobre o tema na base de dados Portal Periódicos da Capes publicados entre as datas 01/01/2016 e 08/10/2021, sendo selecionados os artigos que corresponderam ao tema proposto e excluídos todos os que eram revisões bibliográficas, resenhas, livros, teses, dissertações e estudos que não abrangessem o tema escolhido. Foram selecionados 14 artigos. De um modo geral, esses apontaram um alto índice de indivíduos adultos insatisfeitos com sua IC, em sua maioria do sexo feminino, que buscavam diminuir suas silhuetas, enquanto os indivíduos do sexo masculino desejavam aumentar sua massa corporal. Houve menções sobre associações entre a estimação da imagem corporal e as variáveis, como a prática de exercícios, indícios de TA, doenças e/ou sintomas depressivos, distorções na imagem corporal, estilo de vida e outros, sem estabelecer uma relação entre essas percepções negativas com riscos de bullying e transtornos relacionados que possam ter sido vivenciados na adolescência. Grande influência da mídia, família, amigos e os padrões socialmente estabelecidos sobre a percepção que os indivíduos detêm sobre sua imagem corporal foi relatada. Diante desse contexto, é necessário descontruir a imagem de um corpo padrão perfeito pela própria mídia e espaços como escolas e ambiente familiar, evitando que se multipliquem quadros de distorção de IC, TA e consequentes quadros de depressão.

Este estudo buscou compreender a situação das academias de ginástica durante a pandemia por COVID-19, através de análises das reportagens de um site de grande circulação. Observou-se sobre o contexto do fechamento e prejuízo das academias; relação cliente, empresa e profissional; consequências no ambiente empreendedor da área fitness; estratégias empregadas pelos profissionais do ramo e reabertura gradual. Após analisar as 246 reportagens selecionadas, foi identificado que São Paulo e Minas Gerais foram os estados mais noticiados, o que pode estar relacionado ao fato de pertencerem à região com maior fluxo de notícias no país. Algumas das alternativas utilizadas pelas academias foram a negociação dos meses de mensalidade pagos como crédito para o período pós isolamento, enquanto outras decidiram suspender o pagamento das mensalidades até que o isolamento fosse relaxado. Também utilizaram como alternativa o atendimento online, atendimento a domicílio, empréstimo de equipamentos e atendimento individual no próprio estabelecimento. Apesar da proposta dessas alternativas, de um modo geral, a suspensão das atividades presenciais provocou prejuízos financeiros. Portanto, considera-se que o processo de recuperação do faturamento perdido será lento.