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Helms ER, Spence AJ, Sousa C, Kreiger J, Taylor S, Oranchuk DJ, Dieter BP, Watkins CM. Effect of Small and Large Energy Surpluses on Strength, Muscle, and Skinfold Thickness in Resistance-Trained Individuals: A Parallel Groups Design. SPORTS MEDICINE - OPEN 2023; 9:102. [PMID: 37914977 PMCID: PMC10620361 DOI: 10.1186/s40798-023-00651-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/16/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND Many perform resistance training (RT) to increase muscle mass and strength. Energy surpluses are advised to support such gains; however, if too large, could cause unnecessary fat gain. We randomized 21 trained lifters performing RT 3 d/wk for eight weeks into maintenance energy (MAIN), moderate (5% [MOD]), and high (15% [HIGH]) energy surplus groups to determine if skinfold thicknesses (ST), squat and bench one-repetition maximum (1-RM), or biceps brachii, triceps brachii, or quadriceps muscle thicknesses (MT) differed by group. COVID-19 reduced our sample, leaving 17 completers. Thus, in addition to Bayesian ANCOVA comparisons, we analyzed changes in body mass (BM) with ST, 1-RM, and MT changes via regression. We reported Bayes factors (BF10) indicating odds ratios of the relative likelihood of hypotheses (e.g., BF10 = 2 indicates the hypothesis is twice as likely as another) and coefficients of determination (R2) for regressions. RESULTS ANCOVAs provided no evidence supporting the group model for MT or squat 1-RM. However, moderate (BF10 = 9.9) and strong evidence (BF10 = 14.5) indicated HIGH increased bench 1-RM more than MOD and MAIN, respectively. Further, there was moderate evidence (BF10 = 4.2) HIGH increased ST more than MAIN and weak evidence (BF10 = 2.4) MOD increased ST more than MAIN. Regression provided strong evidence that BM change predicts ST change (BF10 = 14.3, R2 = 0.49) and weak evidence predicting biceps brachii MT change (BF10 = 1.4, R2 = 0.24). CONCLUSIONS While some group-based differences were found, our larger N regression provides the most generalizable evidence. Therefore, we conclude faster rates of BM gain (and by proxy larger surpluses) primarily increase rates of fat gain rather than augmenting 1-RM or MT. However, biceps brachii, the muscle which received the greatest stimulus in this study, may have been positively impacted by greater BM gain, albeit slightly. Our findings are limited to the confines of this study, where a group of lifters with mixed training experience performed moderate volumes 3 d/wk for 8 weeks. Thus, future work is needed to evaluate the relationship between BM gains, increases in ST and RT adaptations in other contexts.
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Affiliation(s)
- Eric R Helms
- Sport Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, 17 Antares Place, Rosedale, Auckland, 0632, New Zealand.
- Muscle Physiology Laboratory, Department of Exercise Science and Health Promotion, Florida Atlantic University, Boca Raton, FL, USA.
| | - Alyssa-Joy Spence
- Sport Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, 17 Antares Place, Rosedale, Auckland, 0632, New Zealand
| | - Colby Sousa
- Sport Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, 17 Antares Place, Rosedale, Auckland, 0632, New Zealand
| | | | | | - Dustin J Oranchuk
- Sport Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, 17 Antares Place, Rosedale, Auckland, 0632, New Zealand
| | | | - Casey M Watkins
- Department of Kinesiology, Seattle University, Seattle, WA, USA
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Möller Parera I, Miguel M, Blasi J, Piccasso R, Hammer HB, Ortiz-Sagrista J, Zaottini F, Martinoli C, Terslev L. Ultrasound assessment of degenerative muscle sarcopenia: the University of Barcelona ultrasound scoring system for sarcopenia. RMD Open 2023; 9:rmdopen-2022-002779. [PMID: 36707106 PMCID: PMC9884912 DOI: 10.1136/rmdopen-2022-002779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 01/11/2023] [Indexed: 01/28/2023] Open
Abstract
AIM This study aimed to (1) determine the intraobserver and interobserver reliability of ultrasonographic measurement of muscle thickness (MT) and cross-sectional area (CSA) of the rectus femoris and biceps brachii, correlating these values with manual measurements on dissected cadavers and (2) develop the first semiquantitative musculoskeletal ultrasound (MSUS) scoring system of muscle morphology in sarcopenia and assess its intraobserver and interobserver reliability. In addition, the MSUS morphology score was compared with the corresponding histological images to verify concurrent validity. METHODS Ten cryopreserved limbs of 10 cadavers aged 68-91 years were evaluated. The MSUS scoring system was based on the severity of muscle degeneration on a 3-point qualitative scale: grade 1 (normal), grade 2 (moderate changes) and grade 3 (severe changes). Reliability was assessed with intraclass correlation coefficient (ICC) for the MT and CSA and with Cohen's kappa coefficients (κ) for the MSUS scoring system. Concurrent validity was analysed with ICC. RESULTS The results showed excellent intraobserver and interobserver reliability for both the MSUS evaluation of MT and CSA (ICC ≥0.93). The MSUS scoring system showed excellent intraobserver reliability (κ=1.0) and very good interobserver reliability (κ=0.85). There was also a high intra- and inter-observer reliability for the histological scorings (ĸ ≥0.85 and mean ĸ=0.70, respectively), as well as high reliability between the histology and MSUS scoring systems (ICC=0.92). All results were statistically significant (p≤0.001). CONCLUSION MSUS measures of MT and CSA and the novel MSUS scoring system for degenerative muscle changes in sarcopenia was found to be reliable and strongly associated with histological findings.
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Affiliation(s)
- Ingrid Möller Parera
- Reumatologia, Instituto Poal de Reumatologia, Barcelona, Spain,Unidad de Anatomía y Embriología Humana, Departamento de Patología y Terapéutica Experimental, Facultad de Medicina y Ciencias de la Salud (Campus de Bellvitge), University of Barcelona, Barcelona, Spain
| | - Maribel Miguel
- Unidad de Anatomía y Embriología Humana, Departamento de Patología y Terapéutica Experimental, Facultad de Medicina y Ciencias de la Salud (Campus de Bellvitge), University of Barcelona, Barcelona, Spain
| | - Joan Blasi
- Unidad de Histologia, Facultad de Medicina y Ciencias de la Salud (Campus de Bellvitge), University of Barcelona, Barcelona, Spain
| | - Riccardo Piccasso
- Department of Health Sciences (DISSAL), University of Genoa, Genova, Italy
| | - Hilde Berner Hammer
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Sykehus AS, Oslo, Norway,Faculty of Medicine, University of Oslo, Oslo, Norway
| | | | | | - Carlo Martinoli
- Department of Health Sciences (DISSAL), University of Genoa, Genova, Italy,IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Lene Terslev
- Center for Rheumatology and Spine Diseases, Rigshospitalet Glostrup, Glostrup, Denmark .,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Paris MT, Bell KE, Avrutin E, Rosati K, Mourtzakis M. Influence of Subcutaneous Adipose Tissue and Skeletal Muscle Thickness on Rectus Femoris Echo Intensity in Younger and Older Males and Females. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2022; 41:2355-2364. [PMID: 34921442 DOI: 10.1002/jum.15922] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 11/30/2021] [Accepted: 12/05/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVES Ultrasound measurements of muscle echo intensity are commonly used surrogates of muscle composition (eg, intramuscular adipose tissue). However, given that soundwaves are increasingly attenuated with tissue depth, the interpretation of echo intensity may be confounded by adipose and skeletal muscle thickness. Our objectives are to compare the associations between adipose or muscle tissue thickness and rectus femoris echo intensity in younger and older males and females. METHODS Participants included in this analysis were derived from 3 previously published cohorts of younger (<45 years) and older (≥60 years) males and females. Ultrasound images of the rectus femoris were evaluated for muscle thickness, echo intensity, and subcutaneous adipose tissue thickness. RESULTS Older adults (n: 49 males, 19 females) had a higher body mass index (P = .001) compared with younger adults (n: 37 males, 49 females). Muscle thickness was negatively associated with echo intensity in older males (r = -0.59) and females (r = -0.53), whereas no associations were observed in younger males (r = 0.00) or females (r = -0.11). Subcutaneous adipose tissue thickness displayed no associations with echo intensity in any group. CONCLUSIONS Despite the known influence of subcutaneous adipose tissue thickness on beam attenuation, we observed no association with muscle echo intensity, indicating that adipose tissue correction may be required to better understand muscle echo intensity across differences in adiposity. The negative associations between muscle thickness and echo intensity in older, but not younger adults, suggests these associations may be related to the co-occurrence of skeletal muscle atrophy and intramuscular adipose tissue infiltration with advancing age.
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Affiliation(s)
- Michael T Paris
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Kirsten E Bell
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Egor Avrutin
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Katherine Rosati
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Marina Mourtzakis
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
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Palmer TB, Farrow AC. Correcting for subcutaneous fat: does it improve the correlation between vastus lateralis echo intensity and physical performance in older women? Clin Physiol Funct Imaging 2022; 42:372-379. [PMID: 35778784 DOI: 10.1111/cpf.12778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/05/2022] [Accepted: 06/27/2022] [Indexed: 11/30/2022]
Abstract
Numerous studies have corrected echo intensity of the vastus lateralis for subcutaneous fat thickness. However, it is unclear if correction for subcutaneous fat improves the correlation between vastus lateralis echo intensity and physical performance. We aimed to examine the correlations between vastus lateralis muscle morphology parameters and physical performance outcomes in older women. Twenty healthy older women (67 ± 4 years) participated in this study. Muscle cross-sectional area, raw and corrected echo intensity, and subcutaneous fat thickness were determined from ultrasound scans of the vastus lateralis. Physical performance was assessed from timed up-and-go and six-minute walk tests. Raw echo intensity was significantly related to timed up-and-go scores (r = 0.552, P = 0.012) and six-minute walk distance (r = -0.462, P = 0.040), whereas corrected echo intensity was not significantly associated with these performances (r = 0.433, P = 0.056 and r = -0.373, P = 0.105). There was a non-significant correlation between raw echo intensity and subcutaneous fat thickness (r = 0.353, P = 0.126). There were also non-significant correlations between muscle cross-sectional area and timed up-and-go scores (r = -0.189, P = 0.426) and six-minute walk distance (r = 0.298, P = 0.201). The results of our study showed that raw echo intensity correlated better than corrected echo intensity with physical performance. These findings question the need to correct echo intensity of the vastus lateralis for subcutaneous fat thickness in older adults. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ty B Palmer
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX
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Varanoske AN, Coker NA, Johnson BADI, Belity T, Wells AJ. Influence of muscle depth and thickness on ultrasound echo intensity of the vastus lateralis. Acta Radiol 2021; 62:1178-1187. [PMID: 32996322 DOI: 10.1177/0284185120958405] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Ultrasonography is used to evaluate muscle quality (i.e. echo intensity [EI]), but an attenuation of ultrasound waves occurs in deeper tissues, potentially affecting these measures. PURPOSE To determine whether muscle thickness (MT) affects EI and if EI varies between the superficial and deep portions of the muscle. MATERIALS AND METHODS MT, EI, subcutaneous adipose tissue thickness (SAT), tissue depth (DISDEEP), and EI of the overall (EIFULL) as well as deep (EIDEEP) and superficial (EISUPF) portions of the vastus lateralis (VL) were assessed in 33 resistance-trained males using ultrasonography. The difference (EIDIFF) between EISUPF and EIDEEP was calculated. Mean differences between EIFULL, EISUPF, and EIDEEP were analyzed using a repeated-measures analysis of variance (ANOVA). Relationships between measures of muscle depth/ thickness and EI were examined using Pearson's r. RESULTS EISUPF was greater than EIDEEP (P < 0.001) and EIFULL (P < 0.001). MT was negatively correlated with EIFULL (P < 0.001) and positively correlated with EIDIFF (P < 0.001). SAT was not correlated with any EI measure, but DISDEEP was positively correlated with EIDIFF (P < 0.001). CONCLUSION EI of the VL is heterogeneous, as the deeper portion produces lower values than the superficial portion. Thicker muscles present lower EI but have greater discrepancies in EI between the superficial and deep portions. Although SAT was not correlated with EI, DISDEEP was related to EIDIFF, demonstrating that the combination of MT and SAT should be considered when evaluating muscle quality. Future research is necessary to determine if changes in EI following resistance training are driven by increases in MT.
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Affiliation(s)
- Alyssa N Varanoske
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, College of Health Professions and Sciences, University of Central Florida, Orlando, FL, USA
| | - Nicholas A Coker
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, College of Health Professions and Sciences, University of Central Florida, Orlando, FL, USA
| | - Bri-Ana DI Johnson
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, College of Health Professions and Sciences, University of Central Florida, Orlando, FL, USA
| | - Tal Belity
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, College of Health Professions and Sciences, University of Central Florida, Orlando, FL, USA
| | - Adam J Wells
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, College of Health Professions and Sciences, University of Central Florida, Orlando, FL, USA
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Naimo MA, Varanoske AN, Hughes JM, Pasiakos SM. Skeletal Muscle Quality: A Biomarker for Assessing Physical Performance Capabilities in Young Populations. Front Physiol 2021; 12:706699. [PMID: 34421645 PMCID: PMC8376973 DOI: 10.3389/fphys.2021.706699] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/09/2021] [Indexed: 12/28/2022] Open
Abstract
Muscle quality (MQ), defined as the amount of strength and/or power per unit of muscle mass, is a novel index of functional capacity that is increasingly relied upon as a critical biomarker of muscle health in low functioning aging and pathophysiological adult populations. Understanding the phenotypical attributes of MQ and how to use it as an assessment tool to explore the efficacy of resistance exercise training interventions that prioritize functional enhancement over increases in muscle size may have implications for populations beyond compromised adults, including healthy young adults who routinely perform physically demanding tasks for competitive or occupational purposes. However, MQ has received far less attention in healthy young populations than it has in compromised adults. Researchers and practitioners continue to rely upon static measures of lean mass or isolated measures of strength and power, rather than using MQ, to assess integrated functional responses to resistance exercise training and physical stress. Therefore, this review will critically examine MQ and the evidence base to establish this metric as a practical and important biomarker for functional capacity and performance in healthy, young populations. Interventions that enhance MQ, such as high-intensity stretch shortening contraction resistance exercise training, will be highlighted. Finally, we will explore the potential to leverage MQ as a practical assessment tool to evaluate function and enhance performance in young populations in non-traditional research settings.
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Affiliation(s)
- Marshall A Naimo
- Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, MA, United States
| | - Alyssa N Varanoske
- Military Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, MA, United States.,Oak Ridge Institute for Science and Education, Oak Ridge, TN, United States
| | - Julie M Hughes
- Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, MA, United States
| | - Stefan M Pasiakos
- Military Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, MA, United States
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Sobolewski EJ, Wein LD, Crow JM, Carpenter KM. Intra-rater and inter-rater reliability of the process of obtaining cross-sectional area and echo intensity measurements of muscles from ultrasound images. J Ultrason 2021; 21:7-11. [PMID: 33791111 PMCID: PMC8008133 DOI: 10.15557/jou.2021.0002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 01/16/2021] [Indexed: 11/29/2022] Open
Abstract
Introduction: The use of ultrasound images for analyzing muscle quality and size is continuing to grow in the literature. However, many of these manuscripts fail to properly describe their measurement techniques and steps involved in analyzing ultrasound images. Aim of this study: To evaluate the intra- and inter-rater reliability of the steps involved when analyzing ultrasound images to measure cross-sectional area and echo intensity. Material and methods: Twenty ultrasound images of the rectus femoris and vastus lateralis images were blinded and replicated, and then analyzed by experienced raters. The raters then were asked to analyze the images using open-source software for scaling measurements, subcutaneous fat thickness, cross-sectional area, and echo intensity. Matched image values for each measurement where compared for intra- and inter-rater reliability. Results: Intra-rater reliability ranged from fair (ICC3,1 = 0.32) to high (0.98), with echo intensity values being the least reliable (>0.55), and scaling and depth measurements being the most reliable (<0.85). Inter-rater reliability ranged from good (0.77) to high (0.97). Conclusion: Ultrasound-derived measures of cross-sectional area and echo intensity can be measured reliably, with echo intensity being the most difficult to replicate. However, reliability measures are unique to the rater and study and, therefore, should be clearly reported in every paper.
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Affiliation(s)
| | - Leah D Wein
- Molnar Human Performance Lab, Furman University, Greenville SC, USA
| | - Jacquelyn M Crow
- Molnar Human Performance Lab, Furman University, Greenville SC, USA
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Varanoske AN, Coker NA, Johnson BADI, Belity T, Wells AJ. Muscle Quality, Measured by Ultrasound-Derived Corrected Echo Intensity, Does not Affect Changes in Cross-sectional Area of the Vastus Lateralis Following Recumbent Rest. JOURNAL OF DIAGNOSTIC MEDICAL SONOGRAPHY 2021. [DOI: 10.1177/8756479320967277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective: Recumbent rest elicits a decrease in muscle size of the lower extremity, but the extent of decrease may be related to differences in muscle quality. This could have implications for ultrasound-derived measures of muscle size, particularly in individuals with a large proportion of intramuscular contractile elements. The research objective was to determine whether decreases in muscle size following recumbent rest are related to ultrasound-derived corrected echo intensity in resistance-trained males. Methods: Cross-sectional area (CSA), echo intensity (EI), subcutaneous fat thickness (SFT), and EI corrected for SFT (EICor) of the vastus lateralis (VL) were measured via ultrasonography in 30 resistance-trained males. Measures were obtained immediately following recumbency (T0) and 15 minutes after recumbency (T15). The association between EICor and percentage change in CSA (%ΔCSA) from T0 to T15 was examined. Comparisons of morphological characteristics were examined between a subset of participants with the lowest (LO; n = 10; <33rd percentile) and highest (HI; n = 10; >66th percentile) EICor. Results: EICor was not correlated with %ΔCSA ( P = .151), and the decrease in CSA from T0 to T15 did not differ between the LO and HI groups. Conclusions: Muscle quality (EICor) is not related to the decrease in CSA of the VL following recumbent rest among resistance-trained, young males. The time frame of muscle CSA acquisition should not differ based solely on differences in muscle quality.
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Affiliation(s)
- Alyssa N. Varanoske
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, College of Health Professions and Sciences, University of Central Florida, Orlando, FL, USA
| | - Nicholas A. Coker
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, College of Health Professions and Sciences, University of Central Florida, Orlando, FL, USA
| | - Bri-Ana D. I. Johnson
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, College of Health Professions and Sciences, University of Central Florida, Orlando, FL, USA
| | - Tal Belity
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, College of Health Professions and Sciences, University of Central Florida, Orlando, FL, USA
- Department of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Adam J. Wells
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, College of Health Professions and Sciences, University of Central Florida, Orlando, FL, USA
- Exercise Physiology Intervention and Collaboration (EPIC) Laboratory, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL
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Short-term neuromuscular, morphological, and architectural responses to eccentric quasi-isometric muscle actions. Eur J Appl Physiol 2020; 121:141-158. [PMID: 32995961 DOI: 10.1007/s00421-020-04512-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 09/21/2020] [Indexed: 12/24/2022]
Abstract
PURPOSE Eccentric quasi-isometric (EQI) contractions have been proposed as a novel training method for safely exposing the musculotendinous system to a large mechanical load/impulse, with few repetitions. However, understanding of this contraction type is rudimentary. We aimed to compare the acute effects of a single session of isotonic EQIs with isokinetic eccentric (ECC) contractions. METHODS Fifteen well-trained men performed a session of impulse-equated EQI and ECC knee extensions, with each limb randomly allocated to one contraction type. Immediately PRE, POST, 24/48/72 h, and 7 days post-exercise, regional soreness, quadriceps swelling, architecture, and echo intensity were evaluated. Peak concentric and isometric torque, rate of torque development (RTD), and angle-specific impulse were evaluated at each time point. RESULTS There were substantial differences in the number of contractions (ECC: 100.8 ± 54; EQI: 3.85 ± 1.1) and peak torque (mean: ECC: 215 ± 54 Nm; EQI: 179 ± 28.5 Nm). Both conditions elicited similar responses in 21/53 evaluated variables. EQIs resulted in greater vastus intermedius swelling (7.1-8.8%, ES = 0.20-0.29), whereas ECC resulted in greater soreness at the distal and middle vastus lateralis and distal rectus femoris (16.5-30.4%, ES = 0.32-0.54) and larger echogenicity increases at the distal rectus femoris and lateral vastus intermedius (11.9-15.1%, ES = 0.26--0.54). Furthermore, ECC led to larger reductions in concentric (8.3-19.7%, ES = 0.45-0.62) and isometric (6.3-32.3%, ES = 0.18-0.70) torque and RTD at medium-long muscle lengths. CONCLUSION A single session of EQIs resulted in less soreness and smaller reductions in peak torque and RTD versus impulse-equated ECC contractions, yet morphological shifts were largely similar. Long-term morphological, architectural, and neuromuscular adaptations to EQI training requires investigation.
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Oranchuk DJ, Stock MS, Nelson AR, Storey AG, Cronin JB. Variability of regional quadriceps echo intensity in active young men with and without subcutaneous fat correction. Appl Physiol Nutr Metab 2020; 45:745-752. [PMID: 31917597 DOI: 10.1139/apnm-2019-0601] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Quantifying echo intensity (EI), a proposed measure of muscle quality, is becoming increasingly popular. Additionally, much attention has been paid to regional differences in other ultrasonically evaluated measures of muscle morphology and architecture. However, the variability of regional (proximal, middle, distal) EI of the vastus lateralis, rectus femoris, and lateral and anterior vastus intermedius has yet to be determined. Twenty participants (40 limbs), were evaluated on 3 occasions, separated by 7 days. Intersession variability of EI with and without subcutaneous fat correction was quantified. Furthermore, the interchangeability of corrected EI across regions was evaluated. Variability of regional quadriceps EI was substantially lower with subcutaneous fat correction (intraclass correlation coefficient (ICC) = 0.81-0.98, coefficient of variation (CV) = 4.5%-16.8%, typical error of measure (TEM) = 0.13-0.49) versus raw values (ICC = 0.69-0.98, CV = 7.7%-42.7%, TEM = 0.14-0.68), especially when examining the vastus intermedius (ICC = 0.81-0.95, CV = 7.1%-16.8%, TEM = 0.23-0.49 vs. ICC = 0.69-0.92, CV = 22.9%-42.7%, TEM = 0.31-0.68). With the exception of the rectus femoris and vastus intermedius (p ≥ 0.143, effect size (ES) ≤ 0.18), corrected EI was greater for proximal and distal regions when compared with the midpoint (p ≤ 0.038, ES = 0.38-0.82). Researchers and practitioners should utilize subcutaneous fat thickness correction to confidently evaluate EI at all regions of the quadriceps. Regional EI cannot be used interchangeably for the vastus muscles, likely because of an increase in fibrous content towards the myotendinous junctions. Novelty Regional quadriceps echo intensity was reliable with and without correction for subcutaneous fat thickness. Intersession variability of regional quadriceps echo intensity was substantially improved following subcutaneous fat correction. Quadriceps echo intensity increased towards myotendinous junctions in the vastus muscles.
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Affiliation(s)
- Dustin J Oranchuk
- Sports Performance Research Institute New Zealand, Auckland University of Technology, Mairangi Bay, Auckland, New Zealand
| | - Matt S Stock
- School of Kinesiology and Physical Therapy, University of Central Florida, Orlando, FL 32816, USA
| | - André R Nelson
- Institute for Health and Sport, Victoria University, Melbourne, Australia
| | - Adam G Storey
- Sports Performance Research Institute New Zealand, Auckland University of Technology, Mairangi Bay, Auckland, New Zealand
| | - John B Cronin
- Sports Performance Research Institute New Zealand, Auckland University of Technology, Mairangi Bay, Auckland, New Zealand
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11
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Varanoske AN, Coker NA, Johnson BAD, Belity T, Mangine GT, Stout JR, Fukuda DH, Wells AJ. Effects of Rest Position on Morphology of the Vastus Lateralis and Its Relationship with Lower-Body Strength and Power. J Funct Morphol Kinesiol 2019; 4:jfmk4030064. [PMID: 33467379 PMCID: PMC7739298 DOI: 10.3390/jfmk4030064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 08/16/2019] [Accepted: 08/20/2019] [Indexed: 11/16/2022] Open
Abstract
Ultrasonography of the lower body typically encompasses supine rest due to fluid shifts affecting tissue size and composition. However, vastus lateralis (VL) examination is completed in the lateral recumbent position, and this positional change may influence morphology and its ability to predict function. This study aimed to examine the effect of position on VL morphology and its relationship with lower-body performance. Cross-sectional area (CSA), muscle thickness (MT), pennation angle (PA), echo intensity (UnCorEI), subcutaneous adipose tissue thickness (SFT), and echo intensity corrected for SFT (CorEI) were assessed in 31 resistance-trained males (23.0 ± 2.1 yrs; 1.79 ± 0.08 m; 87.4 ± 11.7 kg) immediately after transitioning from standing to supine (IP), after 15 min of standing (ST), and after 15 min of rest in three recumbent positions: supine (SUP), dominant lateral recumbent (DLR), non-dominant lateral recumbent (NDLR). Participants also completed unilateral vertical jumps, isometric/isokinetic tests, and a one-repetition maximum leg press. CSA, MT, PA, and SFT were greater in ST compared to NDLR, DLR, and SUP (p < 0.05). CSA, UnCorEI, and CorEI were different between recumbent positions; however no differences were observed for MT, PA, and SFT. Different magnitudes of relationships were observed between muscle morphological characteristics measured after rest in different positions and performance variables. Muscle morphology in IP generally appears to be the best predictor of performance for most variables, although utilizing the NDLR and DLR positions may provide comparable results, whereas morphology measured in ST and SUP provide weaker relationships with physical performance. IP also requires less time and fewer requirements on the technician and subject, thus researchers should consider this positioning for VL examination.
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Affiliation(s)
- Alyssa N. Varanoske
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, University of Central Florida, 12494 University Blvd., Orlando, FL 32816, USA
| | - Nicholas A. Coker
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, University of Central Florida, 12494 University Blvd., Orlando, FL 32816, USA
| | - Bri-Ana D.I. Johnson
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, University of Central Florida, 12494 University Blvd., Orlando, FL 32816, USA
| | - Tal Belity
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, University of Central Florida, 12494 University Blvd., Orlando, FL 32816, USA
| | - Gerald T. Mangine
- Department of Exercise Science and Sport Management, Kennesaw State University, Kennesaw, GA 30144, USA
| | - Jeffrey R. Stout
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, University of Central Florida, 12494 University Blvd., Orlando, FL 32816, USA
| | - David H. Fukuda
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, University of Central Florida, 12494 University Blvd., Orlando, FL 32816, USA
| | - Adam J. Wells
- Institute of Exercise Physiology and Rehabilitation Science, Division of Kinesiology, University of Central Florida, 12494 University Blvd., Orlando, FL 32816, USA
- Correspondence: ; Tel.: +1-407-823-3906
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Gonzalez AM, Spitz RW, Ghigiarelli JJ, Sell KM, Mangine GT. Acute Effect of Citrulline Malate Supplementation on Upper-Body Resistance Exercise Performance in Recreationally Resistance-Trained Men. J Strength Cond Res 2018; 32:3088-3094. [DOI: 10.1519/jsc.0000000000002373] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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13
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Application of ultrasound for muscle assessment in sarcopenia: towards standardized measurements. Eur Geriatr Med 2018; 9:739-757. [DOI: 10.1007/s41999-018-0104-9] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 08/29/2018] [Indexed: 12/22/2022]
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14
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Mota JA, Stock MS, Thompson BJ. Vastus lateralis and rectus femoris echo intensity fail to reflect knee extensor specific tension in middle-school boys. Physiol Meas 2017; 38:1529-1541. [DOI: 10.1088/1361-6579/aa791a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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