Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 2 de 2
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
J Strength Cond Res ; 32(12): 3534-3541, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28301444

RESUMO

Fryer, SM, Giles, D, Garrido Palomino, I, de la O Puerta, A, and España-Romero, V. Hemodynamic and cardiorespiratory predictors of sport rock climbing performance. J Strength Cond Res 32(12): 3543-3550, 2018-Rock climbing performance has been suggested to involve a notable contribution from aerobic metabolism. Previously, it has been shown that forearm oxygenation kinetics can be used to distinguish ability groups and predict red-point sport climbing performance. Currently, it is not known if forearm oxygenation kinetics or a sport-specific assessment of cardiorespiratory fitness best predicts sport rock climbing performance. The aim of the study was to determine whether forearm oxidative capacity index, maximal deoxygenation (Δ score) during a treadwall V[Combining Dot Above]O2peak test, treadwall V[Combining Dot Above]O2peak, or running V[Combining Dot Above]O2max best predicts self-reported sport climbing performance. Twenty-one male sport rock climbers completed a treadwall V[Combining Dot Above]O2peak, running V[Combining Dot Above]O2max, and an assessment of near-infrared spectroscopy-derived oxidative capacity index. Linear regression, adjusted for age and experience (years), revealed that forearm oxidative capacity index, treadwall maximal deoxygenation (Δ), and treadwall V[Combining Dot Above]O2peak all significantly predicted self-reported red-point sport climbing ability (Adj R = -0.398, -0.255, and 0.374, respectively), whereas treadmill running V[Combining Dot Above]O2max did not (Adj R = -0.052). Additionally, multiple regression suggested that the combined significant aerobic predictors accounted for 67% of the variance in red-point climbing ability. Findings suggest that training for sport rock climbing performance should look to incorporate modalities that focus on (a) improving local forearm aerobic capacity and (b) improving whole-body aerobic capacity using sport-specific apparatus, such as treadwalls.


Assuntos
Desempenho Atlético , Aptidão Cardiorrespiratória , Antebraço/fisiologia , Hemodinâmica , Montanhismo/fisiologia , Adulto , Atletas , Teste de Esforço , Tolerância ao Exercício , Humanos , Cinética , Masculino , Consumo de Oxigênio , Corrida , Espectroscopia de Luz Próxima ao Infravermelho
2.
Environ Pollut ; 159(8-9): 2138-47, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21269745

RESUMO

Tropospheric ozone (O(3)) is considered one of the most important air pollutants affecting human health. The role of peri-urban vegetation in modifying O(3) concentrations has been analyzed in the Madrid region (Spain) using the V200603par-rc1 version of the CHIMERE air quality model. The 3.7 version of the MM5 meteorological model was used to provide meteorological input data to the CHIMERE. The emissions were derived from the EMEP database for 2003. Land use data and the stomatal conductance model included in CHIMERE were modified according to the latest information available for the study area. Two cases were considered for the period April-September 2003: (1) actual land use and (2) a fictitious scenario where El Pardo peri-urban forest was converted to bare-soil. The results show that El Pardo forest constitutes a sink of O(3) since removing this green area increased O(3) levels over the modified area and over down-wind surrounding areas.


Assuntos
Poluição do Ar/estatística & dados numéricos , Monitoramento Ambiental/métodos , Modelos Químicos , Árvores/fisiologia , Poluentes Atmosféricos/análise , Poluentes Atmosféricos/metabolismo , Cidades , Ozônio/análise , Ozônio/metabolismo , Espanha , Árvores/classificação , Árvores/metabolismo
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA