Acute effect of multiple sets of fatiguing resistance exercise on muscle thickness, echo intensity and extracellular-to-intracellular water ratio.

08:00 EDT 12th July 2019 | BioPortfolio

Summary of "Acute effect of multiple sets of fatiguing resistance exercise on muscle thickness, echo intensity and extracellular-to-intracellular water ratio."

Resistance exercise (RE) causes an acute increase of the muscle thickness (MT) considered to relate to an increase in tissue water content. Segmental bioelectrical impedance spectroscopy (S-BIS) is a tool to non-invasively assess intra- and extra-cellular water (ICW and ECW, respectively) of a given limb segment. The purpose of the present study was to examine the change of MT, ultrasound echo intensity (EI), ICW and ECW after three sets of exhaustive RE. Eighteen untrained young males (age, 25.4 ± 4.1 years) performed RE consisting of three sets of knee extension concentric and eccentric contractions with 80% of one repetition maximum to failure. The MT and EI of the quadriceps measured by ultrasonography, and ECW/ICW ratio of the thigh assessed by S-BIS before (baseline) and after each set of RE (PostEx-1, 2, and 3). The changes (Δ) in MT, EI, and ECW/ICW ratio were calculated as values of PostEx minus baseline values. The values of MT, EI, and ECW/ICW ratio at PostEx-3 were significantly higher than baseline (effect size: MT, 1.11; EI, 0.47; and ECW/ICW ratio, 0.45). In addition, ΔMT was significantly and moderately correlated with ΔECW/ICW ratio (r=0.61). Integrated data showed weak but significant correlation between ΔEI and ΔECW/ICW ratio as well (r = 0.31). The present results suggest multiple sets of exhaustive knee extension RE induce the acute increase of EI and ECW/ICW ratio as well as MT. The acute increase of muscle size after exercise can be at least partly explained by relative ECW increase.


Journal Details

This article was published in the following journal.

Name: Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme
ISSN: 1715-5320


DeepDyve research library

PubMed Articles [31047 Associated PubMed Articles listed on BioPortfolio]

Time-course bicep tissue bio-impedance changes throughout a fatiguing exercise protocol.

This study investigated the localized electrical-impedance changes in the biceps tissues throughout a fatiguing exercise protocol. During the protocol, 17 subjects performed 10 sets of bicep curl repe...

pQCT- and Ultrasound-based Muscle and Fat Estimate Errors after Resistance Exercise.

Resistance exercise increases blood flow, induces osmotic and hydrostatic fluid shifts during and immediately after exercise, and may trigger inflammatory responses for several days in the working mus...

Phosphorylation of αB-crystallin and its cytoskeleton association differs in skeletal myofiber types depending on resistance exercise intensity and volume.

αB-crystallin (CRYAB) is an important actor in the immediate cell stabilizing response following mechanical stress in skeletal muscle. Yet, only little is known regarding myofiber type-specific stres...

Contralateral fatigue during severe-intensity single-leg exercise: influence of acute acetaminophen ingestion.

Exhaustive single-leg exercise has been suggested to reduce time to task failure (T) during subsequent exercise in the contralateral leg by exacerbating central fatigue development. We investigated th...

Exercise training guidelines for multiple sclerosis, stroke, and Parkinson's disease: Rapid review and synthesis.

The translation of knowledge from exercise training research into the clinical management of multiple sclerosis (MS), stroke, and Parkinson's disease (PD) requires evidence-based guidelines that are u...

Clinical Trials [21037 Associated Clinical Trials listed on BioPortfolio]

Lower and Higher Load Resistance Exercise Protocols: Acute Muscle Activation and Skeletal Muscle Hypertrophy

How much weight an individual lifts per workout does not dictate the relative increase in muscle size the individual gains following weeks of training, which is contrary to current strengt...

Comparing Acute Aerobic and Resistance Exercise

The purpose of this study is to determine the effect of age and fitness level on the physiological response to an acute bout of resistance or aerobic exercise.

Effects of Vibration Foam Rolling After Muscle Damage

Purpose: To compare the effects between non-vibration foam rolling (NVFR) and vibration foam rolling (VFR) on visual analogic scale (VAS), pressure pain threshold (PPT), oxygen saturation ...

Comparative Effects of Post-exercise Ingestion of a High or Low Molecular Weight Solution on Resistance Exercise Performance

This study sought to examine differences in resistance exercise performance, as measured by the kinetic and kinematic profile during multiple sets of the back squat exercise, following ing...

Resistance Exercise and Muscle Protein Synthesis in Obese Adults

Obesity has numerous comorbidities that are associated with exceedingly high healthcare costs. In addition to well- characterized impairments in lipid and glucose metabolism, obesity is as...

Medical and Biotech [MESH] Definitions

A type of strength-building exercise program that requires the body muscle to exert a force against some form of resistance, such as weight, stretch bands, water, or immovable objects. Resistance exercise is a combination of static and dynamic contractions involving shortening and lengthening of skeletal muscles.

Alternating sets of exercise that work out different muscle groups and that also alternate between aerobic and anaerobic exercises, which, when combined together, offer an overall program to improve strength, stamina, balance, or functioning.

A state arrived at through prolonged and strong contraction of a muscle. Studies in athletes during prolonged submaximal exercise have shown that muscle fatigue increases in almost direct proportion to the rate of muscle glycogen depletion. Muscle fatigue in short-term maximal exercise is associated with oxygen lack and an increased level of blood and muscle lactic acid, and an accompanying increase in hydrogen-ion concentration in the exercised muscle.

The ability of fungi to resist or to become tolerant to several structurally and functionally distinct drugs simultaneously. This resistance phenotype may be attributed to multiple gene mutations.

The ability of viruses to resist or to become tolerant to several structurally and functionally distinct drugs simultaneously. This resistance phenotype may be attributed to multiple gene mutation.

Quick Search

DeepDyve research library

Relevant Topics

Arthritis Fibromyalgia Gout Lupus Rheumatic Rheumatology is the medical specialty concerned with the diagnosis and management of disease involving joints, tendons, muscles, ligaments and associated structures (Oxford Medical Diction...

Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...

Joint Disorders
A joint is where two or more bones come together, like the knee, hip, elbow, or shoulder. Joints can be damaged by many types of injuries or diseases, including Arthritis - inflammation of a joint causes pain, stiffness, and swelling with ...

Searches Linking to this Article