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Related Concept Videos

Exercise and Muscle Performance01:27

Exercise and Muscle Performance

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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
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
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Classification of Skeletal Muscle Fibers01:48

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Skeletal muscles continuously produce ATP to provide the energy that enables muscle contractions. Skeletal muscle fibers can be categorized into three types based on differences in their contraction speed and how they produce ATP, as well as physical differences related to these factors. Most human muscles contain all three muscle fiber types, albeit in varying proportions.
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Exercise Stress Test01:26

Exercise Stress Test

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Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
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Exercise and Cardiac Output01:17

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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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Dynamic Equilibrium02:20

Dynamic Equilibrium

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A reversible chemical reaction represents a chemical process that proceeds in both forward (left to right) and reverse (right to left) directions. When the rates of the forward and reverse reactions are equal, the concentrations of the reactant and product species remain constant over time and the system is at equilibrium. A special double arrow is used to emphasize the reversible nature of the reaction. The relative concentrations of reactants and products in equilibrium systems vary greatly;...
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Exercise and Cardiovascular Response01:20

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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...
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Related Experiment Video

Updated: Jan 24, 2026

Muscle Function Obtained with Motion Mode Ultrasound and Surface Electromyography during Core Endurance Exercise
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Muscle Function Obtained with Motion Mode Ultrasound and Surface Electromyography during Core Endurance Exercise

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Trunk Muscle Activation During Dynamic Sling Training Exercises.

Tobias Morat1, Denis Holzer1, Rieke Trumpf1

  • 1Institute of Movement and Sport Gerontology, German Sport University, Cologne, GERMANY.

International Journal of Exercise Science
|June 4, 2019
PubMed
Summary
This summary is machine-generated.

Dynamic sling training effectively activates trunk muscles, particularly abdominal muscles. Adjusting body angle increases exercise intensity, making sling training a versatile tool for progressive core strengthening.

Keywords:
Electromyographyfunctional traininginjury preventionphysical activitystrength training

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Area of Science:

  • Exercise Physiology
  • Biomechanics
  • Sports Science

Background:

  • Sling training is a popular exercise modality.
  • Understanding trunk muscle activation during sling exercises is crucial for optimizing training programs.

Purpose of the Study:

  • To quantify trunk muscle activation during various dynamic sling training exercises.
  • To compare muscle activation levels across different exercises and difficulty variations.

Main Methods:

  • Thirty-six healthy adults performed six sling exercises at two difficulty levels.
  • Surface electromyography measured activation of eight trunk muscles.
  • Muscle activation was analyzed unilaterally and compared to peak reference values.

Main Results:

  • Significant differences in muscle activation were observed across front, side, and back trunk regions.
  • High activation (76-87%) was recorded for front trunk flexor muscles.
  • Harder exercise variations significantly increased activation in all tested trunk muscles compared to easier versions.

Conclusions:

  • Sling exercises tested are highly effective for abdominal muscle engagement.
  • Modifying body angle is a viable method to adjust sling training intensity.
  • This approach facilitates controlled, progressive overload in future sling training interventions.