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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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Excitation-Contraction Coupling in Skeletal Muscles01:20

Excitation-Contraction Coupling in Skeletal Muscles

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Excitation-contraction coupling is a series of events that occur between generating an action potential and initiating a muscle contraction. It occurs at the triad, a structure found in skeletal muscle fibers that comprise a T-tubule and terminal cisternae of the sarcoplasmic reticulum on each side. These triads are visible in longitudinally sectioned muscle fibers. They are typically located at the A-I junction — the junction between the A and I bands of the sarcomere.
When an action...
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Isotonic and Isometric Muscle Contractions01:22

Isotonic and Isometric Muscle Contractions

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Two primary types of muscle contractions are isotonic and isometric, each serving unique functions and involving distinct mechanisms. Both isotonic and isometric contractions are integral to the body's complex system of movement and stability. Isotonic exercises contribute significantly to functional strength and movement, while isometric contractions are crucial for maintaining posture and joint stability.
Isotonic contractions
Isotonic contractions occur when a muscle changes length while...
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Motor Unit Stimulation01:20

Motor Unit Stimulation

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When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
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Axial and Appendicular Muscles01:18

Axial and Appendicular Muscles

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Skeletal muscles, the key players in our body's movement, can be classified into two groups based on their location and function: axial muscles and appendicular muscles. These classifications reflect the primary roles the muscles play in the body's structure and movement.
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Axial muscles, situated along the body's midline, are intricately connected to the axial skeleton, which includes the skull, spine, ribs, and sternum. These muscles facilitate facial expressions and...
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Muscles of the Thorax01:25

Muscles of the Thorax

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The thorax muscles are central to the body's respiration and provide essential support and movement for the upper body. They are intricately designed to facilitate the complex breathing process while also contributing to the structural integrity and mobility of the chest and upper limbs.
The diaphragm is at the core of thoracic musculature, the primary muscle involved in breathing. This expansive, dome-shaped muscle marks the division between the thoracic and abdominal cavities. It...
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Related Experiment Video

Updated: May 2, 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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Core muscle activity during suspension exercises.

Nicola W Mok1, Ella W Yeung1, Jeran C Cho1

  • 1Centre for Sports Training and Rehabilitation, Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong.

Journal of Science and Medicine in Sport
|February 22, 2014
PubMed
Summary
This summary is machine-generated.

Suspension training, particularly the hip abduction in plank, significantly activates core muscles. This exercise offers a strong potential for core strengthening compared to other suspension workouts.

Keywords:
Core musclesEMGStrengtheningSuspension training

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Isometric and Eccentric Force Generation Assessment of Skeletal Muscles Isolated from Murine Models of Muscular Dystrophies
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Area of Science:

  • Biomechanics and Exercise Physiology
  • Musculoskeletal Rehabilitation
  • Sports Science

Background:

  • Suspension exercise is recognized for enhancing core stability in various populations.
  • Limited data exists on the specific electromyographic activity of core muscles during suspension exercises.
  • Understanding core muscle engagement is crucial for optimizing training protocols.

Purpose of the Study:

  • To quantify the activation levels of key core muscles during four distinct suspension exercises.
  • To compare the relative muscle activation across different suspension movements.
  • To identify suspension exercises with the highest potential for core muscle strengthening.

Main Methods:

  • Surface electromyography (sEMG) measured core muscle (rectus abdominis, obliques, transversus abdominis, multifidus) activation.
  • Four suspension exercises were analyzed: hip abduction in plank, hamstring curl, chest press, and 45° row.
  • Muscle activity was normalized to maximal voluntary isometric contraction (MVIC) during a 5-second hold period.

Main Results:

  • Varied muscle activation was observed across the tested suspension exercises.
  • Hip abduction in plank elicited the highest activation in most abdominal muscles.
  • The 45° row exercise demonstrated the lowest overall core muscle activation.

Conclusions:

  • Suspension hip abduction in plank shows the greatest potential for strengthening core muscles among the exercises studied.
  • Suspension training generally yields high core muscle activation levels.
  • These findings support the efficacy of specific suspension exercises for robust core engagement.