Podcast
Questions and Answers
No decorrer da atividade física:
No decorrer da atividade física:
O mecanismo de termorregulação visa:
O mecanismo de termorregulação visa:
A vasoconstrição cutânea é:
A vasoconstrição cutânea é:
A frequência de ativação das unidades motoras:
A frequência de ativação das unidades motoras:
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O grupo de populações especiais engloba:
O grupo de populações especiais engloba:
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As crianças apresentam:
As crianças apresentam:
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A criança apresenta menor capacidade ventilatória que os adultos. Alguns dos fatores a que podemos atribuir essa capacidade ventilatória são:
A criança apresenta menor capacidade ventilatória que os adultos. Alguns dos fatores a que podemos atribuir essa capacidade ventilatória são:
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As crianças compensam a sua capacidade cardíaca menor:
As crianças compensam a sua capacidade cardíaca menor:
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Um dos fatores a que podemos associar o decréscimo de VO2 máx com o aumento da idade é:
Um dos fatores a que podemos associar o decréscimo de VO2 máx com o aumento da idade é:
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Algumas das alterações respiratórias que se dão com a idade são:
Algumas das alterações respiratórias que se dão com a idade são:
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A Sarcopénia pode ser explicada por alterações:
A Sarcopénia pode ser explicada por alterações:
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Poderemos referir que uma das alterações morfológicas cardiovasculares mais salientes que se associam ao envelhecimento é:
Poderemos referir que uma das alterações morfológicas cardiovasculares mais salientes que se associam ao envelhecimento é:
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A somação de ondas múltiplas é:
A somação de ondas múltiplas é:
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O Fuso Neuromuscular (FNM) informa:
O Fuso Neuromuscular (FNM) informa:
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As adaptações fisiológicas agudas à altitude que ocorrem são:
As adaptações fisiológicas agudas à altitude que ocorrem são:
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O VO2 máx diminui com a altitude devido:
O VO2 máx diminui com a altitude devido:
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As adaptações fisiológicas crónicas à altitude que ocorrem são:
As adaptações fisiológicas crónicas à altitude que ocorrem são:
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A cascata de transporte de O2 explica-nos como a pressão de O2:
A cascata de transporte de O2 explica-nos como a pressão de O2:
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O síndrome de overtraining pode ser definido como:
O síndrome de overtraining pode ser definido como:
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A fadiga pode ser considerada como:
A fadiga pode ser considerada como:
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Flashcards
Thermoregulation during exercise
Thermoregulation during exercise
Maintaining a stable body temperature during physical activity.
Vasoconstriction
Vasoconstriction
The narrowing of blood vessels to reduce heat loss.
Motor unit activation
Motor unit activation
Increasing the frequency to produce more force and speed during exercise.
Children's ventilatory capacity
Children's ventilatory capacity
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Cardiac capacity in children
Cardiac capacity in children
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Age-related decline in VO2 max
Age-related decline in VO2 max
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Respiratory changes with age
Respiratory changes with age
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Sarcopenia
Sarcopenia
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Arterial stiffness
Arterial stiffness
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Neuromuscular function
Neuromuscular function
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FNM (Fuso Neuromuscular)
FNM (Fuso Neuromuscular)
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Acute high-altitude adaptation
Acute high-altitude adaptation
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VO2 max decrease at high altitude
VO2 max decrease at high altitude
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Chronic high-altitude adaptation
Chronic high-altitude adaptation
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Oxygen transport cascade
Oxygen transport cascade
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Overtraining syndrome
Overtraining syndrome
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Fatigue
Fatigue
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Special Populations
Special Populations
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Study Notes
Thermoregulation During Physical Activity
- The thermoregulation mechanism aims to maintain a stable body temperature during exercise.
Vasoconstriction and Motor Units
- Vasoconstriction is the constriction of blood vessels that helps to reduce heat loss during exercise.
- The frequency of motor unit activation is increased during exercise to generate more force and speed.
Special Populations
- The special population group includes children, pregnant women, and elderly individuals who have unique physiological responses to exercise.
- Children have a lower ventilatory capacity compared to adults, which can be attributed to factors such as smaller lung volume, lower diffusion capacity, and higher oxygen affinity.
Cardiovascular Adaptations in Children
- Children compensate for their lower cardiac capacity by increasing their heart rate and stroke volume during exercise.
Age-Related Changes in VO2 Max
- One of the factors contributing to the decline in VO2 max with age is the reduction in muscle mass and mitochondrial density.
Respiratory Changes with Age
- Some of the respiratory changes that occur with age include a decrease in lung volume, diffusion capacity, and oxygen affinity.
Sarcopenia
- Sarcopenia can be explained by changes in muscle fiber composition, muscle protein synthesis, and hormonal changes.
Cardiovascular Morphological Changes with Age
- One of the most significant morphological changes in the cardiovascular system with age is the increase in arterial stiffness.
Neuromuscular Function
- The summation of multiple waves is a key aspect of neuromuscular function, allowing for the rapid transmission of nerve impulses.
Fuso Neuromuscular (FNM)
- The FNM provides information on the neuromuscular function and the relationship between the nervous system and muscle fibers.
Acute Adaptations to High Altitude
- The acute physiological adaptations to high altitude include increased ventilation, heart rate, and cardiac output to compensate for the lower oxygen availability.
Decrease in VO2 Max with Altitude
- The VO2 max decreases with altitude due to the lower oxygen availability, which affects aerobic exercise performance.
Chronic Adaptations to High Altitude
- The chronic physiological adaptations to high altitude include increased red blood cell count, myoglobin, and mitochondrial density to enhance oxygen delivery and utilization.
Oxygen Transport Cascade
- The oxygen transport cascade explains how oxygen pressure affects the binding of oxygen to hemoglobin and its transport to the tissues.
Overtraining Syndrome
- The overtraining syndrome can be defined as a state of chronic fatigue, decreased performance, and impaired physiological function resulting from excessive and prolonged exercise.
Fatigue
- Fatigue can be considered as a temporary and reversible decline in physical performance, whereas overtraining syndrome is a more severe and prolonged condition.
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