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Related Concept Videos

Exercise and Cardiovascular Response01:20

Exercise and Cardiovascular Response

Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Exercise and Cardiac Output01:17

Exercise and Cardiac Output

Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
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Exercise and Muscle Performance01:27

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Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
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Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective response...
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Oxygen Transport in the Blood

Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
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Factors Affecting Respiration

Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:

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Supramaximal Intensity Hypoxic Exercise and Vascular Function Assessment in Mice
10:00

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Published on: March 15, 2019

Does aerobic and strength exercise sequence in the same session affect the oxygen uptake during and postexercise?

José Vilacxa Alves1, Francisco Saavedra, Roberto Simão

  • 1Research Center for Sport, Health, and Human Development, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal. josevilaca@utad.pt

Journal of Strength and Conditioning Research
|October 12, 2011
PubMed
Summary

Concurrent training, combining strength and aerobic exercise, does not significantly alter oxygen consumption (VO2) regardless of the order. This finding supports integrating both training types within a single session for general fitness and sports conditioning.

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Determining the Contribution of the Energy Systems During Exercise
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Published on: March 20, 2012

Area of Science:

  • Exercise Physiology
  • Sports Science
  • Human Performance

Background:

  • Concurrent training, integrating strength and aerobic exercise, is widely used in fitness and sports.
  • The optimal sequencing of strength training (ST) and aerobic training (AT) within a single session remains a topic of interest for maximizing physiological adaptations.
  • Understanding the impact of exercise order on oxygen consumption (VO2) is crucial for designing effective training programs.

Purpose of the Study:

  • To compare the physiological responses, specifically VO2, heart rate (HR), and respiratory exchange ratio (RER), to different combinations of ST and AT.
  • To investigate whether the sequence of AT and ST affects overall oxygen utilization during a combined training session.

Main Methods:

  • Eight healthy men completed three randomized training sessions: AT before ST, AT between ST blocks, and AT after ST.
  • Each session included 20 minutes of interval cycling (AT) and a standardized ST protocol.
  • Measurements of VO2, HR, and RER were taken during and post-exercise.

Main Results:

  • No significant differences in absolute or relative VO2, HR, or RER were observed across the three exercise sequences.
  • While RER showed minor differences between specific sequences during ST, overall session oxygen consumption was unaffected.
  • All sequences demonstrated significant increases in VO2 and HR, and decreases in RER from the first to the second part of ST.

Conclusions:

  • The order of performing strength and aerobic training within the same session does not appear to significantly impact overall oxygen consumption.
  • Concurrent training sessions can effectively integrate both ST and AT without compromising aerobic exercise responses.
  • These findings provide evidence for flexible concurrent training program design in both general fitness and athletic conditioning.