The Experts below are selected from a list of 102081 Experts worldwide ranked by ideXlab platform

Tom D Brutsaert - One of the best experts on this subject based on the ideXlab platform.

  • aerobic capacity of peruvian quechua a test of the Developmental adaptation hypothesis
    American Journal of Physical Anthropology, 2015
    Co-Authors: Melisa Kiyamu, Gianpietro Elias, Fabiola Leonvelarde, Maria Riverachira, Tom D Brutsaert
    Abstract:

    High altitude natives are reported to have outstanding work capacity in spite of the challenge of oxygen transport and delivery in hypoxia. To evaluate the Developmental Effect of lifelong exposure to hypoxia on aerobic capacity, VO2peak was measured on two groups of Peruvian Quechua subjects (18-35 years), who differed in their Developmental exposure to altitude. Male and female volunteers were recruited in Lima, Peru (150 m), and were divided in two groups, based on their Developmental exposure to hypoxia, those: a) Born at sea-level individuals (BSL), with no Developmental exposure to hypoxia (n = 34) and b) Born at high-altitude individuals (BHA) with full Developmental exposure to hypoxia (n = 32), but who migrated to sea-level as adults (>16-years-old). Tests were conducted both in normoxia (BP = 750 mm Hg) and normobaric hypoxia at sea-level (BP = 750 mm Hg, FiO2  = 0.12, equivalent to 4,449 m), after a 2-month training period (in order to control for initial differences in physical fitness) at sea-level. BHA had a significantly higher VO2peak at hypoxia (40.31 ± 1.0 ml/min/kg) as compared to BSL (35.78 ± 0.96 ml/min/kg, P = 0.001), adjusting for sex. The decrease of VO2peak at HA relative to SL (ΔVO2peak ) was not different between groups, controlling for baseline levels (VO2peak at sea-level) and sex (BHA = 0.35 ± 0.04 l/min, BSL = 0.44 ± 0.04 l/min; P = 0.12). Forced vital capacity (controlling for height) and the residuals of VO2peak (controlling for weight) had a significant association in the BHA group only (r = 0.155; P = 0.031). In sum, results indicate that Developmental exposure to altitude constitutes an important factor to determine superior exercise performance.

  • aerobic capacity of peruvian quechua a test of the Developmental adaptation hypothesis
    American Journal of Physical Anthropology, 2015
    Co-Authors: Melisa Kiyamu, Gianpietro Elias, Fabiola Leonvelarde, Maria Riverachira, Tom D Brutsaert
    Abstract:

    High altitude natives are reported to have outstanding work capacity in spite of the challenge of oxygen transport and delivery in hypoxia. To evaluate the Developmental Effect of lifelong exposure to hypoxia on aerobic capacity, VO2peak was measured on two groups of Peruvian Quechua subjects (18–35 years), who differed in their Developmental exposure to altitude. Male and female volunteers were recruited in Lima, Peru (150 m), and were divided in two groups, based on their Developmental exposure to hypoxia, those: a) Born at sea-level individuals (BSL), with no Developmental exposure to hypoxia (n = 34) and b) Born at high-altitude individuals (BHA) with full Developmental exposure to hypoxia (n = 32), but who migrated to sea-level as adults (>16-years-old). Tests were conducted both in normoxia (BP = 750 mm Hg) and normobaric hypoxia at sea-level (BP = 750 mm Hg, FiO2 = 0.12, equivalent to 4,449 m), after a 2-month training period (in order to control for initial differences in physical fitness) at sea-level. BHA had a significantly higher VO2peak at hypoxia (40.31 ± 1.0 ml/min/kg) as compared to BSL (35.78 ± 0.96 ml/min/kg, P = 0.001), adjusting for sex. The decrease of VO2peak at HA relative to SL (ΔVO2peak) was not different between groups, controlling for baseline levels (VO2peak at sea-level) and sex (BHA = 0.35 ± 0.04 l/min, BSL = 0.44 ± 0.04 l/min; P = 0.12). Forced vital capacity (controlling for height) and the residuals of VO2peak (controlling for weight) had a significant association in the BHA group only (r = 0.155; P = 0.031). In sum, results indicate that Developmental exposure to altitude constitutes an important factor to determine superior exercise performance. Am J Phys Anthropol 156:363–373, 2015. © 2014 Wiley Periodicals, Inc.

Jocelyn E Malamy - One of the best experts on this subject based on the ideXlab platform.

  • intrinsic and environmental response pathways that regulate root system architecture
    Plant Cell and Environment, 2005
    Co-Authors: Jocelyn E Malamy
    Abstract:

    Root system development is an important agronomic trait. The right architecture in a given environment allows plants to survive periods of water of nutrient deficit, and compete Effectively for resources. Root systems also provide an optimal system for studying Developmental plasticity, a characteristic feature of plant growth. This review proposes a framework for describing the pathways regulating the development of complex structures such as root systems: intrinsic pathways determine the characteristic architecture of the root system in a given plant species, and define the limits for plasticity in that species. Response pathways co-ordinate environmental cues with development by modulating intrinsic pathways. The current literature describing the regulation of root system development is summarized here within this framework. Regulatory pathways are also organized based on their specific Developmental Effect in the root system. All the pathways affect lateral root formation, but some specifically target initiation of the lateral root, while others target the development and activation of the lateral root primordium, or the elongation of the lateral root. Finally, we discuss emerging approaches for understanding the regulation of root system architecture.

Melisa Kiyamu - One of the best experts on this subject based on the ideXlab platform.

  • aerobic capacity of peruvian quechua a test of the Developmental adaptation hypothesis
    American Journal of Physical Anthropology, 2015
    Co-Authors: Melisa Kiyamu, Gianpietro Elias, Fabiola Leonvelarde, Maria Riverachira, Tom D Brutsaert
    Abstract:

    High altitude natives are reported to have outstanding work capacity in spite of the challenge of oxygen transport and delivery in hypoxia. To evaluate the Developmental Effect of lifelong exposure to hypoxia on aerobic capacity, VO2peak was measured on two groups of Peruvian Quechua subjects (18-35 years), who differed in their Developmental exposure to altitude. Male and female volunteers were recruited in Lima, Peru (150 m), and were divided in two groups, based on their Developmental exposure to hypoxia, those: a) Born at sea-level individuals (BSL), with no Developmental exposure to hypoxia (n = 34) and b) Born at high-altitude individuals (BHA) with full Developmental exposure to hypoxia (n = 32), but who migrated to sea-level as adults (>16-years-old). Tests were conducted both in normoxia (BP = 750 mm Hg) and normobaric hypoxia at sea-level (BP = 750 mm Hg, FiO2  = 0.12, equivalent to 4,449 m), after a 2-month training period (in order to control for initial differences in physical fitness) at sea-level. BHA had a significantly higher VO2peak at hypoxia (40.31 ± 1.0 ml/min/kg) as compared to BSL (35.78 ± 0.96 ml/min/kg, P = 0.001), adjusting for sex. The decrease of VO2peak at HA relative to SL (ΔVO2peak ) was not different between groups, controlling for baseline levels (VO2peak at sea-level) and sex (BHA = 0.35 ± 0.04 l/min, BSL = 0.44 ± 0.04 l/min; P = 0.12). Forced vital capacity (controlling for height) and the residuals of VO2peak (controlling for weight) had a significant association in the BHA group only (r = 0.155; P = 0.031). In sum, results indicate that Developmental exposure to altitude constitutes an important factor to determine superior exercise performance.

  • aerobic capacity of peruvian quechua a test of the Developmental adaptation hypothesis
    American Journal of Physical Anthropology, 2015
    Co-Authors: Melisa Kiyamu, Gianpietro Elias, Fabiola Leonvelarde, Maria Riverachira, Tom D Brutsaert
    Abstract:

    High altitude natives are reported to have outstanding work capacity in spite of the challenge of oxygen transport and delivery in hypoxia. To evaluate the Developmental Effect of lifelong exposure to hypoxia on aerobic capacity, VO2peak was measured on two groups of Peruvian Quechua subjects (18–35 years), who differed in their Developmental exposure to altitude. Male and female volunteers were recruited in Lima, Peru (150 m), and were divided in two groups, based on their Developmental exposure to hypoxia, those: a) Born at sea-level individuals (BSL), with no Developmental exposure to hypoxia (n = 34) and b) Born at high-altitude individuals (BHA) with full Developmental exposure to hypoxia (n = 32), but who migrated to sea-level as adults (>16-years-old). Tests were conducted both in normoxia (BP = 750 mm Hg) and normobaric hypoxia at sea-level (BP = 750 mm Hg, FiO2 = 0.12, equivalent to 4,449 m), after a 2-month training period (in order to control for initial differences in physical fitness) at sea-level. BHA had a significantly higher VO2peak at hypoxia (40.31 ± 1.0 ml/min/kg) as compared to BSL (35.78 ± 0.96 ml/min/kg, P = 0.001), adjusting for sex. The decrease of VO2peak at HA relative to SL (ΔVO2peak) was not different between groups, controlling for baseline levels (VO2peak at sea-level) and sex (BHA = 0.35 ± 0.04 l/min, BSL = 0.44 ± 0.04 l/min; P = 0.12). Forced vital capacity (controlling for height) and the residuals of VO2peak (controlling for weight) had a significant association in the BHA group only (r = 0.155; P = 0.031). In sum, results indicate that Developmental exposure to altitude constitutes an important factor to determine superior exercise performance. Am J Phys Anthropol 156:363–373, 2015. © 2014 Wiley Periodicals, Inc.

Fabiola Leonvelarde - One of the best experts on this subject based on the ideXlab platform.

  • aerobic capacity of peruvian quechua a test of the Developmental adaptation hypothesis
    American Journal of Physical Anthropology, 2015
    Co-Authors: Melisa Kiyamu, Gianpietro Elias, Fabiola Leonvelarde, Maria Riverachira, Tom D Brutsaert
    Abstract:

    High altitude natives are reported to have outstanding work capacity in spite of the challenge of oxygen transport and delivery in hypoxia. To evaluate the Developmental Effect of lifelong exposure to hypoxia on aerobic capacity, VO2peak was measured on two groups of Peruvian Quechua subjects (18-35 years), who differed in their Developmental exposure to altitude. Male and female volunteers were recruited in Lima, Peru (150 m), and were divided in two groups, based on their Developmental exposure to hypoxia, those: a) Born at sea-level individuals (BSL), with no Developmental exposure to hypoxia (n = 34) and b) Born at high-altitude individuals (BHA) with full Developmental exposure to hypoxia (n = 32), but who migrated to sea-level as adults (>16-years-old). Tests were conducted both in normoxia (BP = 750 mm Hg) and normobaric hypoxia at sea-level (BP = 750 mm Hg, FiO2  = 0.12, equivalent to 4,449 m), after a 2-month training period (in order to control for initial differences in physical fitness) at sea-level. BHA had a significantly higher VO2peak at hypoxia (40.31 ± 1.0 ml/min/kg) as compared to BSL (35.78 ± 0.96 ml/min/kg, P = 0.001), adjusting for sex. The decrease of VO2peak at HA relative to SL (ΔVO2peak ) was not different between groups, controlling for baseline levels (VO2peak at sea-level) and sex (BHA = 0.35 ± 0.04 l/min, BSL = 0.44 ± 0.04 l/min; P = 0.12). Forced vital capacity (controlling for height) and the residuals of VO2peak (controlling for weight) had a significant association in the BHA group only (r = 0.155; P = 0.031). In sum, results indicate that Developmental exposure to altitude constitutes an important factor to determine superior exercise performance.

  • aerobic capacity of peruvian quechua a test of the Developmental adaptation hypothesis
    American Journal of Physical Anthropology, 2015
    Co-Authors: Melisa Kiyamu, Gianpietro Elias, Fabiola Leonvelarde, Maria Riverachira, Tom D Brutsaert
    Abstract:

    High altitude natives are reported to have outstanding work capacity in spite of the challenge of oxygen transport and delivery in hypoxia. To evaluate the Developmental Effect of lifelong exposure to hypoxia on aerobic capacity, VO2peak was measured on two groups of Peruvian Quechua subjects (18–35 years), who differed in their Developmental exposure to altitude. Male and female volunteers were recruited in Lima, Peru (150 m), and were divided in two groups, based on their Developmental exposure to hypoxia, those: a) Born at sea-level individuals (BSL), with no Developmental exposure to hypoxia (n = 34) and b) Born at high-altitude individuals (BHA) with full Developmental exposure to hypoxia (n = 32), but who migrated to sea-level as adults (>16-years-old). Tests were conducted both in normoxia (BP = 750 mm Hg) and normobaric hypoxia at sea-level (BP = 750 mm Hg, FiO2 = 0.12, equivalent to 4,449 m), after a 2-month training period (in order to control for initial differences in physical fitness) at sea-level. BHA had a significantly higher VO2peak at hypoxia (40.31 ± 1.0 ml/min/kg) as compared to BSL (35.78 ± 0.96 ml/min/kg, P = 0.001), adjusting for sex. The decrease of VO2peak at HA relative to SL (ΔVO2peak) was not different between groups, controlling for baseline levels (VO2peak at sea-level) and sex (BHA = 0.35 ± 0.04 l/min, BSL = 0.44 ± 0.04 l/min; P = 0.12). Forced vital capacity (controlling for height) and the residuals of VO2peak (controlling for weight) had a significant association in the BHA group only (r = 0.155; P = 0.031). In sum, results indicate that Developmental exposure to altitude constitutes an important factor to determine superior exercise performance. Am J Phys Anthropol 156:363–373, 2015. © 2014 Wiley Periodicals, Inc.

Gianpietro Elias - One of the best experts on this subject based on the ideXlab platform.

  • aerobic capacity of peruvian quechua a test of the Developmental adaptation hypothesis
    American Journal of Physical Anthropology, 2015
    Co-Authors: Melisa Kiyamu, Gianpietro Elias, Fabiola Leonvelarde, Maria Riverachira, Tom D Brutsaert
    Abstract:

    High altitude natives are reported to have outstanding work capacity in spite of the challenge of oxygen transport and delivery in hypoxia. To evaluate the Developmental Effect of lifelong exposure to hypoxia on aerobic capacity, VO2peak was measured on two groups of Peruvian Quechua subjects (18-35 years), who differed in their Developmental exposure to altitude. Male and female volunteers were recruited in Lima, Peru (150 m), and were divided in two groups, based on their Developmental exposure to hypoxia, those: a) Born at sea-level individuals (BSL), with no Developmental exposure to hypoxia (n = 34) and b) Born at high-altitude individuals (BHA) with full Developmental exposure to hypoxia (n = 32), but who migrated to sea-level as adults (>16-years-old). Tests were conducted both in normoxia (BP = 750 mm Hg) and normobaric hypoxia at sea-level (BP = 750 mm Hg, FiO2  = 0.12, equivalent to 4,449 m), after a 2-month training period (in order to control for initial differences in physical fitness) at sea-level. BHA had a significantly higher VO2peak at hypoxia (40.31 ± 1.0 ml/min/kg) as compared to BSL (35.78 ± 0.96 ml/min/kg, P = 0.001), adjusting for sex. The decrease of VO2peak at HA relative to SL (ΔVO2peak ) was not different between groups, controlling for baseline levels (VO2peak at sea-level) and sex (BHA = 0.35 ± 0.04 l/min, BSL = 0.44 ± 0.04 l/min; P = 0.12). Forced vital capacity (controlling for height) and the residuals of VO2peak (controlling for weight) had a significant association in the BHA group only (r = 0.155; P = 0.031). In sum, results indicate that Developmental exposure to altitude constitutes an important factor to determine superior exercise performance.

  • aerobic capacity of peruvian quechua a test of the Developmental adaptation hypothesis
    American Journal of Physical Anthropology, 2015
    Co-Authors: Melisa Kiyamu, Gianpietro Elias, Fabiola Leonvelarde, Maria Riverachira, Tom D Brutsaert
    Abstract:

    High altitude natives are reported to have outstanding work capacity in spite of the challenge of oxygen transport and delivery in hypoxia. To evaluate the Developmental Effect of lifelong exposure to hypoxia on aerobic capacity, VO2peak was measured on two groups of Peruvian Quechua subjects (18–35 years), who differed in their Developmental exposure to altitude. Male and female volunteers were recruited in Lima, Peru (150 m), and were divided in two groups, based on their Developmental exposure to hypoxia, those: a) Born at sea-level individuals (BSL), with no Developmental exposure to hypoxia (n = 34) and b) Born at high-altitude individuals (BHA) with full Developmental exposure to hypoxia (n = 32), but who migrated to sea-level as adults (>16-years-old). Tests were conducted both in normoxia (BP = 750 mm Hg) and normobaric hypoxia at sea-level (BP = 750 mm Hg, FiO2 = 0.12, equivalent to 4,449 m), after a 2-month training period (in order to control for initial differences in physical fitness) at sea-level. BHA had a significantly higher VO2peak at hypoxia (40.31 ± 1.0 ml/min/kg) as compared to BSL (35.78 ± 0.96 ml/min/kg, P = 0.001), adjusting for sex. The decrease of VO2peak at HA relative to SL (ΔVO2peak) was not different between groups, controlling for baseline levels (VO2peak at sea-level) and sex (BHA = 0.35 ± 0.04 l/min, BSL = 0.44 ± 0.04 l/min; P = 0.12). Forced vital capacity (controlling for height) and the residuals of VO2peak (controlling for weight) had a significant association in the BHA group only (r = 0.155; P = 0.031). In sum, results indicate that Developmental exposure to altitude constitutes an important factor to determine superior exercise performance. Am J Phys Anthropol 156:363–373, 2015. © 2014 Wiley Periodicals, Inc.