Perceived exertion threshold: Comparison with ventilatory thresholds and critical power

Critical Power Concept Adapted for the Specific Table Tennis Test: Comparisons Between Exhaustion Criteria, Mathematical Modeling, and Correlation with Gas Exchange Parameters

“…The critical power concept is supported by the hyperbolic relationship between intensity and time to exhaustion [30] . However, the adaptation of the critical power concept for table tennis has been applied with exercises performed until technical exhaustion [31,51,52] but not by voluntary exhaustion as applied in other ergometers [5,6,8,21,23,34] . The use of technical criterion as exhaustion could result in errors in the mathematical relationships used for estimating C f .…”

“…Similar to our results, Gaesser et al [12] found signifi cant correlations between ventilatory threshold and critical power estimated from 5 models in cycling ( r from 0.69 to 0.91), but the ventilatory threshold (considered as the highest power output that could be maintained for 40 min without a signifi cant rise in ventilation after 20 th min) was statistically lower than critical power, except in the Non -3 model. Nakamura et al [34] recently found a signifi cant correlation between critical power and second ventilatory threshold ( r = 0.86) on a cycloergometer. Other important signifi cant correlations were found between f V O 2PEAK and C f estimated from Lin -f ( • ▶ Fig.…”

“…Based on the studies with table tennis [31,51] and other ergometers [8,12,34] that found a signifi cant association between critical power model and respiratory or ventilatory parameters, we hypothesized that the C f values estimated in table tennis will present statistical correlation with respiratory parameters, independent of exhaustion criteria and mathematical modeling. This study was conducted in 2 stages, the fi rst one compared the C f values estimated from 2 exhaustion criteria (i. e., technical and voluntary) and from 5 mathematical models, and the second compared and correlated C f values with RCP, V O 2PEAK , and…”

Reprodutibilidade do protocolo de lactato mínimo com intensidade do esforço prévio individualizado pela PSE

“…Por exemplo, a PSE é uma variável psicofisiológica resultante de estímulos sensoriais, provenientes de fatores cardiopulmonares ou periféricos (BORG, 1982;2000;HAMPSON et al, 2001;NAKAMURA et al, 2010), ou de mecanismos localizados em regiões corticais (WILLIAMSON et al, 2001). A PSE tem sido utilizada no controle e determinação de cargas de treinamento em testes retangulares (NEVES; DOIMO, 2007), identificação do limiar de esforço percebido (NAKAMURA et al, 2009), bem como para identificação do LA em testes incrementais em populações de risco (SIMÕES et al, 2010) e tem sido reprodutível em crianças e adolescentes (LEUNG et al, 2002;PFEIFFER et al, 2002).…”

Comparação do limiar anaeróbio e da carga crítica com relação aos parâmetros cardiorrespiratórios, metabólicos e eletromiográficos no exercício resistido de Leg Press 45° em jovens e idosos

“…Tradicionalmente, tem sido preconizado na literatura, a prescrição da intensidade de exercício resistido com percentuais de cargas baixas a moderadas, entre 40 a 60% da RM, com curtos intervalos de repouso de 15 a 30 segundos (Gaskill et al, 2001;Oliveira et al, 2006;Nakamura et al, 2009;Arakelian, 2010) e 60 a 90% de 1RM para a prescrição da intensidade do exercício resistido com o objetivo de desenvolvimento de força pura e/ou hipertrofia muscular (Meyer, 2001). …”