Development of Ventilatory Responses to Exercise in Normal White Children

Comportamento das variáveis cardiovasculares, ventilatórias e metabólicas durante o exercício: diferenças entre crianças e adultos

“…Over a period of five years, Rowland & Cunningham 4 noted a progressive decline in the ventilatory equivalent of oxygen (VE/VO 2 ) variable, both for a given absolute submaximal intensity and for peak effort (Fig. 5).…”

“…In fact, ventilatory variables such as RR, TV, and MV are closely linked to the child's anthropometric characteristics, particularly body mass and stature 28 . In pre-puberal children, Rowland & Cunningham 4 observed that with age, the RR shows a progressive drop and the TV shows a linear climb, stabilizing at physical maturity, both for a given submaximal and maximal work intensity.…”

“…When children are submitted to a given absolute submaximal intensity of exercise, for example 60 watts on a cycle ergometer, the intensity of the ventilatory response is exacerbated relative to that seen in adults, and progressively decreases with age 2,4 . Over a period of five years, Rowland & Cunningham 4 noted a progressive decline in the ventilatory equivalent of oxygen (VE/VO 2 ) variable, both for a given absolute submaximal intensity and for peak effort (Fig.…”

“…Currently, there is a growing interest in research on growth and physiological development in children and adolescents, and consequently on the mechanisms involved in the cardiorespiratory and metabolic behavior of the pediatric population during physical exercise. In fact, certain authors [2][3][4][5] attribute the different physiological and metabolic responses observed in children during physical exercise to their level of biological maturation, since as they grow, they also develop in almost all functional capacities.…”

Limiar anaeróbico ventilatório em adolescentes brasileiros de ambos os sexos

“…Valores normais de respostas cardiorrespiratórias ao exercício máximo para crianças e adolescentes já foram amplamente publicados (CUNNINGhAM et al, 1984;REYBROUCk et al, 1985;ZANCONATO et al, 1989;WAShINGTON et al, 1988;ROWLAND;CUNNINGhAM, 1992CUNNINGhAM, , 1997AL-hAZZAA, 2001;MANDADZhIEVA et al, 2005;RODRIGUES et al, 2006;SILVA;SARAIVA;SOBRAL, 2007). Contudo, alguns desses estudos apontam também valores para o LAV, que podem ser mencionados como referências, baseados em amostras internacionais, para avaliar o nível de resistência cardiorrespiratória de crianças e adolescentes no exercício submáximo (REYBROUCk et al, 1985;ZANCONATO et al, 1989;AL-hAZZAA, 2001).…”