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Virto N, Río X, Méndez-Zorrilla A, García-Zapirain B. Non invasive techniques for direct muscle quality assessment after exercise intervention in older adults: a systematic review. BMC Geriatr 2024; 24:642. [PMID: 39085773 PMCID: PMC11293103 DOI: 10.1186/s12877-024-05243-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 07/24/2024] [Indexed: 08/02/2024] Open
Abstract
BACKGROUND The aging process induces neural and morphological changes in the human musculoskeletal system, leading to a decline in muscle mass, strength and quality. These alterations, coupled with shifts in muscle metabolism, underscore the essential role of physical exercise in maintaining and improving muscle quality in older adults. Muscle quality's morphological domain encompasses direct assessments of muscle microscopic and macroscopic aspects of muscle architecture and composition. Various tools exist to estimate muscle quality, each with specific technical requirements. However, due to the heterogeneity in both the studied population and study methodologies, there is a gap in the establishment of reference standards to determine which are the non-invasive and direct tools to assess muscle quality after exercise interventions. Therefore, the purpose of this review is to obtain an overview of the non-invasive tools used to measure muscle quality directly after exercise interventions in healthy older adults, as well as to assess the effects of exercise on muscle quality. MAIN TEXT To address the imperative of understanding and optimizing muscle quality in aging individuals, this review provides an overview of non-invasive tools employed to measure muscle quality directly after exercise interventions in healthy older adults, along with an assessment of the effects of exercise on muscle quality. RESULTS Thirty four studies were included. Several methods of direct muscle quality assessment were identified. Notably, 2 studies harnessed CT, 20 utilized US, 9 employed MRI, 2 opted for TMG, 2 adopted myotonometry, and 1 incorporated BIA, with several studies employing multiple tests. Exploring interventions, 26 studies focus on resistance exercise, 4 on aerobic training, and 5 on concurrent training. CONCLUSIONS There is significant diversity in the methods of direct assessment of muscle quality, mainly using ultrasound and magnetic resonance imaging; and a consistent positive trend in exercise interventions, indicating their efficacy in improving or preserving muscle quality. However, the lack of standardized assessment criteria poses a challenge given the diversity within the studied population and variations in methodologies.. These data emphasize the need to standardize assessment criteria and underscore the potential benefits of exercise interventions aimed at optimizing muscle quality.
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Affiliation(s)
- Naiara Virto
- eVida Research Lab, Faculty of Engineering, University of Deusto, Bilbo, Spain.
| | - Xabier Río
- Department of Physical Activity and Sport Sciences, Faculty of Education and Sport, University of Deusto, Bilbo, Spain
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Ruas CV, Ratel S, Nosaka K, Castellano G, Pinto RS. Resistance training effects on pubertal children with a risk of developing pediatric dynapenia. Eur J Appl Physiol 2024; 124:2123-2137. [PMID: 38421430 PMCID: PMC11199291 DOI: 10.1007/s00421-024-05436-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/04/2024] [Indexed: 03/02/2024]
Abstract
PURPOSE Many modern-day children are at risk of pediatric dynapenia (muscle weakness). We examined the effects of a 12-week resistance training (RT) program on neuromuscular function and body composition parameters in pubertal children with a risk of dynapenia. METHODS Twelve children (13.4 ± 0.9 y) with dynapenia performed a progressive RT program consisting of knee extension and flexion, bench press, abdominal crunch, back extension, lateral pull-down, elbow flexion, and upright row (1-2 sets of 10-15 repetitions/exercise) twice/week for 12 weeks. Outcome measures included one-repetition maximum (1-RM) strength, maximal voluntary isometric contraction (MVIC) torque, rate of torque development (RTD), electromyographic (EMG) activity, muscle thickness (MT), muscle quality (MQ) assessed by echo intensity (MQEI) of the knee extensors and specific tension of MVIC torque to thigh fat-free mass (MQST), and total and regional body and bone composition assessed by dual-energy X-ray absorptiometry. Changes in the measures before and after the 12-week RT and associations among the measures were analyzed by linear mixed models. RESULTS Significant (p < 0.05) increases in 1-RM (63.9 ± 4.5%), MVIC torque (16.3 ± 17.8%), MT (18.8 ± 5.5%) and MQ (MQEI: -25.9 ± 15.2%; MQST: 15.1 ± 18.8%;) were evident from pre- to post-training. Total fat-free mass (FFM) increased by 2.3 ± 3.2% from baseline (p = 0.01), but no changes (p > 0.05) in the other measures were observed. Significant (p < 0.05) associations between the changes in 1-RM and/or MVIC torque and the changes in quadriceps MT, MQEI, MQST and total body FFM were evident. CONCLUSIONS The 12-week RT was effective for improving neuromuscular and body composition parameters, and thereby reversed the risk of pediatric dynapenia.
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Affiliation(s)
- Cassio V Ruas
- School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia.
- Brazilian Institute of Neuroscience and Neurotechnology-Institute of Physics Gleb Wataghin, Universidade Estadual de Campinas, R. Sérgio Buarque de Holanda, 777, Campinas, São Paulo, 13083-859, Brazil.
- Exercise Research Laboratory, School of Physical Education, Physiotherapy and Dance, Universidade Federal Rio Grande do Sul, Porto Alegre, Brazil.
| | - Sébastien Ratel
- Université Clermont Auvergne, AME2P, 63000, Clermont-Ferrand, France
| | - Kazunori Nosaka
- School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
| | - Gabriela Castellano
- Brazilian Institute of Neuroscience and Neurotechnology-Institute of Physics Gleb Wataghin, Universidade Estadual de Campinas, R. Sérgio Buarque de Holanda, 777, Campinas, São Paulo, 13083-859, Brazil
| | - Ronei S Pinto
- Exercise Research Laboratory, School of Physical Education, Physiotherapy and Dance, Universidade Federal Rio Grande do Sul, Porto Alegre, Brazil
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Nuzzo JL, Pinto MD, Kirk BJC, Nosaka K. Resistance Exercise Minimal Dose Strategies for Increasing Muscle Strength in the General Population: an Overview. Sports Med 2024; 54:1139-1162. [PMID: 38509414 PMCID: PMC11127831 DOI: 10.1007/s40279-024-02009-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2024] [Indexed: 03/22/2024]
Abstract
Many individuals do not participate in resistance exercise, with perceived lack of time being a key barrier. Minimal dose strategies, which generally reduce weekly exercise volumes to less than recommended guidelines, might improve muscle strength with minimal time investment. However, minimal dose strategies and their effects on muscle strength are still unclear. Here our aims are to define and characterize minimal dose resistance exercise strategies and summarize their effects on muscle strength in individuals who are not currently engaged in resistance exercise. The minimal dose strategies overviewed were: "Weekend Warrior," single-set resistance exercise, resistance exercise "snacking," practicing the strength test, and eccentric minimal doses. "Weekend Warrior," which minimizes training frequency, is resistance exercise performed in one weekly session. Single-set resistance exercise, which minimizes set number and session duration, is one set of multiple exercises performed multiple times per week. "Snacks," which minimize exercise number and session duration, are brief bouts (few minutes) of resistance exercise performed once or more daily. Practicing the strength test, which minimizes repetition number and session duration, is one maximal repetition performed in one or more sets, multiple days per week. Eccentric minimal doses, which eliminate or minimize concentric phase muscle actions, are low weekly volumes of submaximal or maximal eccentric-only repetitions. All approaches increase muscle strength, and some approaches improve other outcomes of health and fitness. "Weekend Warrior" and single-set resistance exercise are the approaches most strongly supported by current research, while snacking and eccentric minimal doses are emerging concepts with promising results. Public health programs can promote small volumes of resistance exercise as being better for muscle strength than no resistance exercise at all.
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Affiliation(s)
- James L Nuzzo
- Centre for Human Performance, School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia.
| | - Matheus D Pinto
- Centre for Human Performance, School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
| | - Benjamin J C Kirk
- Centre for Human Performance, School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
| | - Kazunori Nosaka
- Centre for Human Performance, School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
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Rocha JNDS, Pereira-Monteiro MR, Vasconcelos ABS, Pantoja-Cardoso A, Aragão-Santos JC, Da Silva-Grigoletto ME. Different resistance training volumes on strength, functional fitness, and body composition of older people: A systematic review with meta-analysis. Arch Gerontol Geriatr 2024; 119:105303. [PMID: 38128241 DOI: 10.1016/j.archger.2023.105303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023]
Abstract
Aging causes several changes in the body, reducing strength and muscle mass, which leads to a decline in function. Resistance training (RT) is used to counteract these changes. However, there is still ongoing debate about the optimal volume of RT in the context of aging. We systematically reviewed articles that assessed the impact of different volumes of RT on muscular strength, functional fitness, and body composition of older people. We conducted a systematic search in the PubMed/MEDLINE, Scopus, Embase, Web of Science, Cochrane Library, LILACS, PEDro, and Google Scholar databases, using keywords related to the older population and various RT volumes. We performed meta-analyses for each outcome separately using intervention time in weeks for subgroup analyses. We employed random effects models for all meta-analyses and expressed the results as standardized mean differences (Hedges' g). We included 31 studies, encompassing a total of 1.744 participants. The sample size ranged from 18 to 376, with an average size of 56 participants. Participants' ages ranged from 60 to 83 years. On average, HV-RT (High-Volume Resistance Training) induced significant adaptations in muscle strength of the upper limbs (g = 0.36; 95 % CI = 0.11-0.61) and lower limbs (g = 0.41; 95 % CI = 0.23-0.59), with superiority more pronounced after 12 weeks of training. Regarding functional fitness, there was a tendency favoring HV-RT (g = 0.41; 95 % CI = 0.23-0.59). Thus, HV-RT outperforms LV-RT (Low-Volume Resistance Training) in enhancing muscle strength, particularly in longer interventions with independent older adults.
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Affiliation(s)
| | | | | | - Alan Pantoja-Cardoso
- Graduate Program in Physical Education, Federal University of Sergipe, São Cristóvão, Sergipe
| | - José Carlos Aragão-Santos
- Graduate Program in Health Sciences (PPGCS), Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Marzo Edir Da Silva-Grigoletto
- Department of Physical Education, Federal University of Sergipe, Aracaju, Brazil; Graduate Program in Physiological Sciences (PROCFIS), Federal University of Sergipe, São Cristóvão, Brazil; Graduate Program in Health Sciences (PPGCS), Federal University of Sergipe, Aracaju, Sergipe, Brazil; Graduate Program in Physical Education, Federal University of Sergipe, São Cristóvão, Sergipe
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Marques DL, Neiva HP, Marinho DA, Marques MC. Changes in strength-related outcomes following velocity-monitored resistance training with 10 % and 20 % velocity loss in older adults. Exp Gerontol 2024; 186:112361. [PMID: 38232787 DOI: 10.1016/j.exger.2024.112361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/10/2023] [Accepted: 01/10/2024] [Indexed: 01/19/2024]
Abstract
We compared the effects of velocity-monitored resistance training with an intra-set velocity loss (i.e., the decrement in repetition velocity over the set) of 10 % vs. 20 % on strength-related outcomes in older adults. We randomly assigned eighteen older adults to a velocity loss group of 10 % (n = 10; 78 ± 12 years) or 20 % (n = 8; 73 ± 10 years) to perform a 10-week training program. The primary outcomes were the one-repetition maximum (1RM) and the average mean velocity against absolute loads associated with loads <60 % 1RM (MVlow) and ≥ 60 % 1RM (MVhigh) in the leg and chest press exercises, assessed at pre-, mid- (week 5), and post-test. Secondary outcomes included handgrip strength, 1-kg medicine ball throw distance, 10-m walking time, and five-repetition sit-to-stand time. No differences between groups were found in any outcome at any time (p > 0.05). Both groups improved the 1RM leg press from pre- to mid- and post-test and the MVlow and MVhigh from pre- to mid-test (p < 0.05). No group improved the 1RM chest press (p > 0.05), but both increased the MVlow from pre- to mid-test (p < 0.05). Furthermore, both groups improved the sit-to-stand time, while only the 20 % velocity loss group significantly improved handgrip strength and 10-m walking time (p < 0.05). The results showed that both velocity losses improved leg press strength and velocity, chest press velocity, and sit-to-stand time in older adults, although a 10 % velocity loss was more efficient as it required less volume (i.e., total repetitions) than 20 %. Nevertheless, the latter seems required to optimize handgrip strength and 10-m walking time in older people.
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Affiliation(s)
- Diogo Luís Marques
- Department of Sport Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal; Research Center in Sports Sciences, Health Sciences, and Human Development (CIDESD), 6201-001 Covilhã, Portugal.
| | - Henrique Pereira Neiva
- Department of Sport Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal; Research Center in Sports Sciences, Health Sciences, and Human Development (CIDESD), 6201-001 Covilhã, Portugal
| | - Daniel Almeida Marinho
- Department of Sport Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal; Research Center in Sports Sciences, Health Sciences, and Human Development (CIDESD), 6201-001 Covilhã, Portugal
| | - Mário Cardoso Marques
- Department of Sport Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal; Research Center in Sports Sciences, Health Sciences, and Human Development (CIDESD), 6201-001 Covilhã, Portugal
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Hirono T, Takeda R, Nishikawa T, Okudaira M, Kunugi S, Yoshiko A, Ueda S, Yoshimura A, Watanabe K. Motor unit firing patterns in older adults with low skeletal muscle mass. Arch Gerontol Geriatr 2024; 116:105151. [PMID: 37544147 DOI: 10.1016/j.archger.2023.105151] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 07/17/2023] [Accepted: 07/31/2023] [Indexed: 08/08/2023]
Abstract
Muscular dysfunctions involving a decline in muscle strength are often induced by loss of muscle mass in older adults. Understanding neural activation in older adults in addition to muscular characteristics may be important to prevent such age-related dysfunctions. This study aimed to investigate the difference in motor unit firing patterns between community-dwelling older individuals with normal and low skeletal muscle mass. Sixty-six older adults (62-90 years) performed muscle strength and function tests. On conducting high-density surface electromyography of the vastus lateralis, individual motor unit firing properties were assessed. Individual motor units were divided into three different recruitment threshold groups and their firing rates were compared. The skeletal muscle quantity and quality were assessed using bioimpedance methods and ultrasound images. They were divided into two groups according to sarcopenia criteria: a normal group (n = 39) and presarcopenia group with low skeletal muscle mass but normal physical functions (n = 21). Skeletal muscle mass and muscle thickness were greater and echo intensity was lower in the normal group than presarcopenia group. Motor units in normal older adults fired at different rates with a hierarchy depending on their recruitment threshold, observed as a normal phenomenon. However, motor units in the presarcopenia group fired without showing the hierarchical pattern. The results suggest that older adults with low skeletal muscle mass exhibited an abnormal neural input pattern, in addition to declines in muscle quantity and quality.
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Affiliation(s)
- Tetsuya Hirono
- Laboratory of Neuromuscular Biomechanics, School of Health and Sport Sciences, Chukyo University, Aichi, Japan; Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | - Ryosuke Takeda
- Laboratory of Neuromuscular Biomechanics, School of Health and Sport Sciences, Chukyo University, Aichi, Japan
| | - Taichi Nishikawa
- Laboratory of Neuromuscular Biomechanics, School of Health and Sport Sciences, Chukyo University, Aichi, Japan
| | - Masamichi Okudaira
- Laboratory of Neuromuscular Biomechanics, School of Health and Sport Sciences, Chukyo University, Aichi, Japan; Faculty of Education, Iwate University, Iwate, Japan
| | - Shun Kunugi
- Center for General Education, Aichi Institute of Technology, Aichi, Japan
| | - Akito Yoshiko
- Faculty of Liberal Arts and Sciences, Chukyo University, Aichi, Japan
| | - Saeko Ueda
- Laboratory of Neuromuscular Biomechanics, School of Health and Sport Sciences, Chukyo University, Aichi, Japan; Department of Human Nutrition, School of Life Studies, Sugiyama Jogakuen University, Aichi, Japan
| | - Akane Yoshimura
- Faculty of Education and Integrated Arts and Sciences, Waseda University, Tokyo, Japan
| | - Kohei Watanabe
- Laboratory of Neuromuscular Biomechanics, School of Health and Sport Sciences, Chukyo University, Aichi, Japan
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Augustsson SR, Gannby E. The Significance of Maximal Squat Strength for Neuromuscular Knee Control in Elite Handball Players: A Cross-Sectional Study. Sports (Basel) 2023; 11:236. [PMID: 38133103 PMCID: PMC10748350 DOI: 10.3390/sports11120236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 11/18/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
Both weak muscle strength and impaired neuromuscular control has previous been suggested as risk factors for future traumatic knee injury. However, data on the relationship between these two factors are scarce. Thus, the aim of this study was to investigate the relationship and influence of the one repetition maximum (1RM) barbell squat strength on dynamic knee valgus in elite female and male handball players. In this cross-sectional study 22 elite handball players (7 females) were included. A unilateral drop jump (VDJ) test was used for the assessment of frontal plane dynamic knee valgus. Players also performed a one repetition maximum (1RM) barbell squat test, expressed relative to bodyweight (r1RM), to assess maximal strength, which were dichotomized to analyze 'weak' versus 'strong' players according to median. Correlations were noted between r1RM in squat and knee valgus angle for both the non-dominant (r = -0.54; p = 0.009) and dominant leg (r = -0.46, p = 0.03). The odds of knee valgus were eight times higher, for the dominant leg, in the weak group compared to the strong group (p = 0.03) and 27 times higher, for the non-dominant leg (p = 0.002). The outcome of the present study suggests that maximum squat strength plays an important role when it comes to neuromuscular control of the knee, and that weak handball players are at higher risk of knee valgus compared to strong players during jumping activity.
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Affiliation(s)
- Sofia Ryman Augustsson
- Department of Sport Science, Faculty of Social Sciences, Linnaeus University, 39231 Kalmar, Sweden;
| | - Erik Gannby
- Department of Sport Science, Faculty of Social Sciences, Linnaeus University, 39231 Kalmar, Sweden;
- Kry Health Center, 29535 Bromölla, Sweden
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Silva AC, Pereira MA, Peixoto LM, Rosse IC, Júnior JBF, de Oliveira EC, Becker LK, Coelho DB. 12 weeks of resistance training with progressive intensity improves the diagnostic parameters of sarcopenia in individuals of advanced age. Geriatr Nurs 2023; 54:60-65. [PMID: 37703691 DOI: 10.1016/j.gerinurse.2023.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/15/2023] [Accepted: 08/17/2023] [Indexed: 09/15/2023]
Abstract
OBJECTIVE The objective of this study was to evaluate the effects of 12 weeks of resistance training (RT) with progressive intensity on factors associated with sarcopenia in older individuals. METHODS A cross-sectional study was conducted with 74 participants (64.27 ± 7.06-y-old) who were divided into a control group (n = 37) and an intervention group (n = 37). The intervention group underwent 12 weeks of RT three times a week, with an initial training of 60% and final training of 85% of one-repetition maximum (1RM). Both groups were evaluated before and after the 12-week training period to assess improvements in strength and physical performance. RESULTS The intervention group showed an increase in physical performance, as evidenced by a reduction in the time to perform the Timed Up and Go (TUG) test (p < 0.01) and the Five Times Sit to Stand Test (p < 0.01). Furthermore, the RT proved to be efficient for increasing hand grip and overall muscular strength, as confirmed through the 1RM test. However, the muscle mass index (MMI) and walking speed did not show any significant alterations in both groups. CONCLUSIONS In conclusion, 12 weeks of RT with progressive intensity has a positive effect on the diagnostic parameters of sarcopenia, leading to improvements in physical performance and muscular strength while maintaining the MMI.
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Affiliation(s)
- Ana Carolina Silva
- School of Nutrition and Postgraduate Program in Health and Nutrition, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Milton Amaral Pereira
- Exercise Physiology Laboratory - School of Physical Education, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Lilian Maria Peixoto
- School of Nutrition and Postgraduate Program in Health and Nutrition, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Izinara Cruz Rosse
- School of Phamarcy, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | | | - Emerson Cruz de Oliveira
- School of Physical Education and Postgraduate Program in Health and Nutrition, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Lenice Kappes Becker
- School of Physical Education and Postgraduate Program in Health and Nutrition, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Daniel Barbosa Coelho
- School of Physical Education and Postgraduate Program in Health and Nutrition, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil.
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Kováčiková Z, Sarvestan J, Buková A, Cimboláková I. The association between muscle mass quantity and its quality in physically active older women. Health Care Women Int 2023; 44:1575-1586. [PMID: 36976844 DOI: 10.1080/07399332.2023.2191964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 03/13/2023] [Indexed: 03/29/2023]
Abstract
In this study, the authors aim to determine whether lower limb strength is related to lower limb lean mass and whether this relationship is affected by lower limb functionality in physically active older women. Twenty-six women underwent measures of knee muscles strength and lean mass of lower limbs. Bilateral strength of the knee flexors and extensors was measured by an isokinetic dynamometer. The concentric peak torque was measured at an angular velocity of 60°/s. Lean mass of the lower limbs was measured by bio-impedance analysis. Pearson's correlation analysis revealed significant association between the strength of the knee flexors and lean mass on non-dominant limb only (r = .427, p = .03). Researchers revealed that strategies aiming to prevent lean mass and muscle strength losses should be specifically targeted to individual muscles or muscle groups, even in physically active older women. To improve overall mobility, the strengthening of larger muscle such as hamstring is crucial.
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Affiliation(s)
- Zuzana Kováčiková
- Institute of Physical Education and Sport, Pavol Jozef Šafárik University in Košice, Košice, Slovak Republic
| | - Javad Sarvestan
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Alena Buková
- Institute of Physical Education and Sport, Pavol Jozef Šafárik University in Košice, Košice, Slovak Republic
| | - Iveta Cimboláková
- Institute of Physical Education and Sport, Pavol Jozef Šafárik University in Košice, Košice, Slovak Republic
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Arai H, Nozoe M, Kamiya K, Matsumoto S, Morimoto T. Association Between Skeletal Muscle Mass Index and Falls in Patients With Functional Impairment. Am J Phys Med Rehabil 2023; 102:913-918. [PMID: 37405906 DOI: 10.1097/phm.0000000000002249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
OBJECTIVE This study aimed to assess the association between skeletal muscle mass index and falls in patients with functional impairment. DESIGN This retrospective cohort study was implemented at a convalescent rehabilitation ward. Patients with no measurement of skeletal muscle mass index and bed-ridden patients were excluded from this study. Patients were dichotomized into the low skeletal muscle mass index group and the high skeletal muscle mass index group. The occurrence of fall was assessed according to skeletal muscle mass index groups. RESULTS Of the 327 included patients, 231 (71%) were assigned to the low skeletal muscle mass index group. In total, 66 patients (20%) experienced at least one fall, and a total of 102 falls occurred. The incidence of falls for the low skeletal muscle mass index group was not significantly greater than that for the high skeletal muscle mass index group (4.9 per 1000 patient-days vs. 4.5 per 1000 patient-days, P = 0.9). Low skeletal muscle mass index was not significantly associated with one or more incidents of falls (odds ratio [95% confidence intervals] = 0.6 [0.3-1.17]). CONCLUSIONS This study found that skeletal muscle mass index was not significantly associated with falls in patients undergoing convalescent rehabilitation.
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Affiliation(s)
- Hideki Arai
- From the Department of Clinical Epidemiology, Hyogo College of Medicine, Nishinomiya, Japan (HA, TM); Toyonaka Heisei Hospital, Toyonaka, Osaka, Japan (HA, SM); Department of Physical Therapy, Faculty of Nursing and Rehabilitation, Konan Women's University, Kobe, Hyogo, Japan (MN); and Department of Hygiene and Public Health, Osaka Medical and Pharmaceutical University, Takatsuki, Japan (KK)
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Cordeiro LDS, Linhares DG, Barros Dos Santos AO, Lima Dos Santos L, de Castro JBP, Vale RGDS. Influence of resistance training on muscle architecture in older adults: A systematic review and meta-analysis of randomized controlled trials. Arch Gerontol Geriatr 2023; 112:105020. [PMID: 37043838 DOI: 10.1016/j.archger.2023.105020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/28/2023] [Accepted: 04/01/2023] [Indexed: 04/14/2023]
Abstract
BACKGROUND Resistance training (RT) consists of planned exercise programs to increase muscle strength capacity through neural and structural adaptations, such as changes in the geometric arrangement of muscle fibers. This study aimed to analyze the influence of RT on muscle architecture in older people. METHODS This PROSPERO-registered systematic review and meta-analysis (identification number CRD42022340477) followed the PRISMA guidelines. Four electronic databases were searched for eligible randomized controlled trials (RCTs) that observed older individuals submitted to RT programs that reported muscle architecture outcomes. RESULTS Seventeen RCTs met the eligibility criteria with a total of 488 participants. The main results of the meta-analysis showed that RT interventions had a significant effect on the thickness of the medial gastrocnemius (SMD = 0.12; 95% CI: - 0.07 to 0.17; p < 0.00001; I2 = 0%). CONCLUSION Based on available evidence, studies included in this review showed improvement in maximum isometric force, pennation angle, fascicle length, thickness, and muscle activation after RT interventions. In turn, the meta-analysis suggested a potential for improving the thickness of the medial gastrocnemius after the intervention. However, any clinical implications drawn from the analyses should be interpreted with caution, as these findings are substantially limited due to a low number of included studies and a potential heterogeneity between studies.
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Affiliation(s)
- Lilliany de Souza Cordeiro
- Postgraduate Program in Exercise and Sport Sciences, Rio de Janeiro State University, Rio de Janeiro, Brazil; Laboratory of Exercise and Sport, Institute of Physical Education and Sports, Rio de Janeiro State University, Rua São Francisco Xavier, 524, Pavilhão João Lira Filho, 9° andar, Bloco F, sala 9134/5, Maracanã, CEP, Rio de Janeiro, RJ CEP 20550-900, Brazil.
| | - Diego Gama Linhares
- Postgraduate Program in Exercise and Sport Sciences, Rio de Janeiro State University, Rio de Janeiro, Brazil; Laboratory of Exercise and Sport, Institute of Physical Education and Sports, Rio de Janeiro State University, Rua São Francisco Xavier, 524, Pavilhão João Lira Filho, 9° andar, Bloco F, sala 9134/5, Maracanã, CEP, Rio de Janeiro, RJ CEP 20550-900, Brazil
| | - Andressa Oliveira Barros Dos Santos
- Postgraduate Program in Exercise and Sport Sciences, Rio de Janeiro State University, Rio de Janeiro, Brazil; Laboratory of Exercise and Sport, Institute of Physical Education and Sports, Rio de Janeiro State University, Rua São Francisco Xavier, 524, Pavilhão João Lira Filho, 9° andar, Bloco F, sala 9134/5, Maracanã, CEP, Rio de Janeiro, RJ CEP 20550-900, Brazil
| | - Luciano Lima Dos Santos
- Postgraduate Program in Exercise and Sport Sciences, Rio de Janeiro State University, Rio de Janeiro, Brazil; Laboratory of Exercise and Sport, Institute of Physical Education and Sports, Rio de Janeiro State University, Rua São Francisco Xavier, 524, Pavilhão João Lira Filho, 9° andar, Bloco F, sala 9134/5, Maracanã, CEP, Rio de Janeiro, RJ CEP 20550-900, Brazil
| | - Juliana Brandão Pinto de Castro
- Postgraduate Program in Exercise and Sport Sciences, Rio de Janeiro State University, Rio de Janeiro, Brazil; Laboratory of Exercise and Sport, Institute of Physical Education and Sports, Rio de Janeiro State University, Rua São Francisco Xavier, 524, Pavilhão João Lira Filho, 9° andar, Bloco F, sala 9134/5, Maracanã, CEP, Rio de Janeiro, RJ CEP 20550-900, Brazil
| | - Rodrigo Gomes de Souza Vale
- Postgraduate Program in Exercise and Sport Sciences, Rio de Janeiro State University, Rio de Janeiro, Brazil; Laboratory of Exercise and Sport, Institute of Physical Education and Sports, Rio de Janeiro State University, Rua São Francisco Xavier, 524, Pavilhão João Lira Filho, 9° andar, Bloco F, sala 9134/5, Maracanã, CEP, Rio de Janeiro, RJ CEP 20550-900, Brazil; Active Aging, Exercise, and Health (HEALTHY-AGE Network), Spain
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12
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Van den Broeck J, Héréus S, Cattrysse E, Raeymaekers H, De Maeseneer M, Scafoglieri A. Reliability of Muscle Quantity and Quality Measured With Extended-Field-of-View Ultrasound at Nine Body Sites. ULTRASOUND IN MEDICINE & BIOLOGY 2023; 49:1544-1549. [PMID: 37002153 DOI: 10.1016/j.ultrasmedbio.2023.02.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 02/01/2023] [Accepted: 02/27/2023] [Indexed: 05/17/2023]
Abstract
OBJECTIVE Measuring muscle quantity and quality is very important because the loss of muscle quantity and quality is associated with several adverse effects specifically in older people. Ultrasound is a method widely used to measure muscle quantity and quality. One problem with ultrasound is its limited field of view, which makes it impossible to measure the muscle quantity and quality of certain muscles. In this study, we aimed to evaluate the intra- and inter-rater reliability of extended-field-of-view (EFOV) ultrasound for the measurement of muscle quantity and quality in nine muscles of the limbs and trunk. METHODS Two examiners took two ultrasound EFOV images with a linear probe from each of the muscle sites. The intraclass correlation coefficient (ICC) was used, and the standard error of measurement and coefficient of variation were calculated. RESULTS Intra-rater reliability was good to excellent (ICC = 0.2-1.00) for all muscle measurements. The inter-rater reliability for most of the muscle measurements was good to excellent (ICC = 0.82-0.98). Inter-rater reliability was moderate (0.58-0.72) for some muscle quantity measurements of the tibialis anterior, gastrocnemius, rectus femoris, biceps femoris and triceps brachii muscles. CONCLUSION Muscle quantity and quality can be measured reliably using EFOV US.
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Affiliation(s)
- Jona Van den Broeck
- Experimental Anatomy Research Group, Department of Physiotherapy and Human Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium.
| | - Savanah Héréus
- Experimental Anatomy Research Group, Department of Physiotherapy and Human Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Erik Cattrysse
- Experimental Anatomy Research Group, Department of Physiotherapy and Human Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Hubert Raeymaekers
- Department of Radiology, University Hospital Brussels, Brussels, Belgium
| | | | - Aldo Scafoglieri
- Experimental Anatomy Research Group, Department of Physiotherapy and Human Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium
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Impact of Resistance Training Volume on Physical and Perceptual Outcomes of Breast Cancer Survivors Submitted to a Combined Training Program: A Randomized, Single-Blinded Study. J Phys Act Health 2023; 20:204-216. [PMID: 36689989 DOI: 10.1123/jpah.2022-0097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 09/08/2022] [Accepted: 11/29/2022] [Indexed: 01/24/2023]
Abstract
BACKGROUND To determine the effect of resistance training volume on physical and perceptual outcomes of breast cancer survivors submitted to a combined training program. DESIGN Randomized single-blinded study. METHODS Nineteen breast cancer survivor women were randomized to a single-set (SS) or a multiple-set (MS) group. Both groups completed an 8-week combined training intervention in which the SS and MS groups performed 1 and 3 sets per resistance exercise, respectively. The following outcomes were assessed preintervention and postintervention: maximal knee extension dynamic strength (1-repetition maximum), quadriceps muscle thickness, peak oxygen uptake, time to exhaustion, cancer-related fatigue, and quality of life. RESULTS Both interventions increased knee extension 1-repetition maximum (SS: 29.8% [37.5%]; MS: 19.3% [11.8%]), quadriceps muscle thickness (9.4% [4.1%]; 8.9% [5.9%]), and quality of life (4.3% [6.3%]; 7.9% [9.0%]), with no difference between the groups. However, only MS improved cancer-related fatigue (-2.1% [1.7%]) and time to exhaustion (21.3% [14.9%]), whereas peak oxygen uptake remained unchanged in both groups. CONCLUSIONS Cancer-related fatigue and time to exhaustion, improved only in the MS group after the intervention. On the other hand, similar knee extension 1-repetition maximum, quadriceps muscle thickness, and quality of life improvements were observed in breast cancer survivors irrespective of the resistance training volume performed.
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14
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Ohmae N, Yasui-Yamada S, Furumoto T, Wada K, Hayashi H, Kitao M, Yamanaka A, Kubo M, Matsuoka M, Kamimura S, Shimada A, Sato N, Kitamura Y, Katoh S, Takeda N, Hamada Y. Muscle mass, quality, and strength; physical function and activity; and metabolic status in cachectic patients with head and neck cancer. Clin Nutr ESPEN 2023; 53:113-119. [PMID: 36657901 DOI: 10.1016/j.clnesp.2022.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 11/22/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS Cancer cachexia is commonly associated with poor prognosis in patients with head and neck cancer (HNC). However, its pathophysiology and treatment are not well established. The current study aimed to assess the muscle mass/quality/strength, physical function and activity, resting energy expenditure (REE), and respiratory quotient (RQ) in cachectic patients with HNC. METHODS This prospective cross-sectional study analyzed 64 patients with HNC. Body composition was measured via direct segmental multifrequency bioelectrical impedance analysis, and muscle quality was assessed using echo intensity on ultrasonography images. Muscle strength was investigated utilizing handgrip strength and isometric knee extension force (IKEF). Physical function was evaluated using the 10-m walking speed test and the five times sit-to-stand (5-STS) test. Physical activity was examined using a wearable triaxial accelerometer. REE and RQ were measured via indirect calorimetry. These parameters were compared between the cachectic and noncachectic groups. RESULTS In total, 23 (36%) patients were diagnosed with cachexia. The cachectic group had a significantly lower muscle mass than the noncachectic group. Nevertheless, there was no significant difference in terms of fat between the two groups. The cachectic group had a higher quadriceps echo intensity and a lower handgrip strength and IKEF than the noncachectic group. Moreover, they had a significantly slower normal and maximum walking speed and 5-STS speed. The number of steps, total activity time, and time of activity (<3 Mets) did not significantly differ between the two groups. The cachectic group had a shorter time of activity (≥3 Mets) than the noncachectic group. Furthermore, the cachectic group had a significantly higher REE/body weight and REE/fat free mass and a significantly lower RQ than the noncachectic group. CONCLUSIONS The cachectic group had a lower muscle mass/quality/strength and physical function and activity and a higher REE than the noncachectic group. Thus, REE and physical activity should be evaluated to determine energy requirements. The RQ was lower in the cachectic group than that in the noncachectic group, indicating changes in energy substrate. Further studies must be conducted to examine effective nutritional and exercise interventions for patients with cancer cachexia.
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Affiliation(s)
- Nao Ohmae
- Department of Therapeutic Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan
| | - Sonoko Yasui-Yamada
- Department of Therapeutic Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan.
| | - Taiki Furumoto
- Department of Rehabilitation Medicine, Tokushima University Hospital, 2-50-1, Tokushima 770-8503, Japan
| | - Kyoko Wada
- Department of Therapeutic Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan
| | - Haruka Hayashi
- Department of Therapeutic Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan
| | - Midori Kitao
- Department of Therapeutic Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan
| | - Ayaka Yamanaka
- Department of Therapeutic Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan
| | - Miyu Kubo
- Department of Therapeutic Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan
| | - Momoyo Matsuoka
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan
| | - Seiichiro Kamimura
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan
| | - Aki Shimada
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan
| | - Nori Sato
- Department of Rehabilitation Medicine, Tokushima University Hospital, 2-50-1, Tokushima 770-8503, Japan
| | - Yoshiaki Kitamura
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan
| | - Shinsuke Katoh
- Department of Rehabilitation Medicine, Tokushima University Hospital, 2-50-1, Tokushima 770-8503, Japan
| | - Noriaki Takeda
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan
| | - Yasuhiro Hamada
- Department of Therapeutic Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Tokushima 770-8503, Japan
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15
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Marques DL, Neiva HP, Marinho DA, Marques MC. Manipulating the Resistance Training Volume in Middle-Aged and Older Adults: A Systematic Review with Meta-Analysis of the Effects on Muscle Strength and Size, Muscle Quality, and Functional Capacity. Sports Med 2023; 53:503-518. [PMID: 36307745 DOI: 10.1007/s40279-022-01769-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND Effective manipulation of the acute variables of resistance training is critical to optimizing muscle and functional adaptations in middle-aged and older adults. However, the ideal volume prescription (e.g., number of sets performed per exercise) in middle-aged and older adults remains inconclusive in the literature. OBJECTIVE The effects of single versus multiple sets per exercise on muscle strength and size, muscle quality, and functional capacity in middle-aged and older adults were compared. Moreover, the effects of single versus multiple sets per exercise on muscular and functional gains were also examined, considering the influence of training duration. METHODS Randomized controlled trials and non-randomized controlled trials comparing single versus multiple sets per exercise on muscle strength, muscle size, muscle quality, or functional capacity in middle-aged and older adults (aged ≥ 50 years) in the PubMed/MEDLINE, Web of Science, and Scopus databases (01/09/2021, updated on 15/05/2022) were identified. A random-effects meta-analysis was used. RESULTS Fifteen studies were included (430 participants; 93% women; age 57.9-70.1 years). Multiple sets per exercise produced a greater effect than single sets on lower-limb strength (standardized mean difference [SMD] = 0.29; 95% confidence interval [CI] 0.07-0.51; mean difference [MD] = 1.91 kg; 95% CI 0.50-3.33) and muscle quality (SMD = 0.40; 95% CI 0.05-0.75) gains. There were no differences between single versus multiple sets per exercise for upper-limb strength (SMD = 0.13; 95% CI - 0.14 to 0.40; MD = 0.11 kg; 95% CI - 0.52 to 0.75), muscle size (SMD = 0.15; 95% CI - 0.07 to 0.37), and functional capacity (SMD = 0.01; 95% CI - 0.47 to 0.50) gains. In addition, there were no differences between single versus multiple sets on muscle strength and size gains for training durations ≤ 12 weeks or > 12 weeks. CONCLUSIONS Multiple sets per exercise produced greater lower-limb strength and muscle quality gains than single sets in middle-aged and older adults, although the magnitude of the difference was small. In contrast, single sets per exercise were sufficient to improve upper-limb strength, muscle size, and functional capacity in these populations. Despite these findings, researchers should conduct future high-quality, pre-registered, and blinded randomized controlled trials to strengthen the scientific evidence on this topic.
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Affiliation(s)
- Diogo Luís Marques
- Department of Sport Sciences, University of Beira Interior, Covilhã, Portugal.
| | - Henrique Pereira Neiva
- Department of Sport Sciences, University of Beira Interior, Covilhã, Portugal
- Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), Covilhã, Portugal
| | - Daniel Almeida Marinho
- Department of Sport Sciences, University of Beira Interior, Covilhã, Portugal
- Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), Covilhã, Portugal
| | - Mário Cardoso Marques
- Department of Sport Sciences, University of Beira Interior, Covilhã, Portugal
- Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), Covilhã, Portugal
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16
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Cesanelli L, Kamandulis S, Volungevičius G, Satkunskiene D. Relationships between muscle quality, subcutaneous adipose tissue, and sprint performance markers of competitive cyclists. J Sports Med Phys Fitness 2023; 63:104-110. [PMID: 35333030 DOI: 10.23736/s0022-4707.22.13613-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Many variables are considered to be determinants of cycling sprint performance. Among them, the importance of skeletal muscle properties in relation to cycling performance has been consistently underlined. The aim of the present study was to evaluate the vastus lateralis (VL), rectus femoris (RF) and vastus medialis (VM), echo intensity (EI) and subcutaneous adipose tissue (SAT) content in a group of competitive cyclists and to identify whether these are related to sprint performance. METHODS Muscle echo intensity was evaluated by ultrasound in 16 highly trained competitive cyclists. The cyclists performed a maximal-intensity sprint session comprising four 15 s maximal sprints on a Wingate bike with 2 min of recovery between each. Pearson correlational analysis with linear regression was used to identify significant relationships between the criteria EI and SAT content and the sprint performance variables. RESULTS Muscle EI correlated strongly with sprint performance markers (r=from 0.54 to 0.62; P<0.05), while SAT content and body fat percentage correlated trivially to moderately with sprint performance (r=from 0.07 to 0.40; P>0.05). CONCLUSIONS Overall, muscle quality of knee extensors was positively related to sprint performance markers, but SAT content was not. Although additional studies are needed, muscle quality may represent a valid body composition indicator and may be helpful for supporting sprint performance optimization procedures in competitive cyclists.
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Affiliation(s)
- Leonardo Cesanelli
- Department of Health Promotion and Rehabilitation, Lithuanian Sports University, Kaunas, Lithuania -
| | - Sigitas Kamandulis
- Institute of Sports Science and Innovation, Lithuanian Sports University, Kaunas, Lithuania
| | | | - Danguole Satkunskiene
- Institute of Sports Science and Innovation, Lithuanian Sports University, Kaunas, Lithuania
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17
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Bell L, Nolan D, Immonen V, Helms E, Dallamore J, Wolf M, Androulakis Korakakis P. "You can't shoot another bullet until you've reloaded the gun": Coaches' perceptions, practices and experiences of deloading in strength and physique sports. Front Sports Act Living 2022; 4:1073223. [PMID: 36619355 PMCID: PMC9811819 DOI: 10.3389/fspor.2022.1073223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022] Open
Abstract
Deloading refers to a purposeful reduction in training demand with the intention of enhancing preparedness for successive training cycles. Whilst deloading is a common training practice in strength and physique sports, little is known about how the necessary reduction in training demand should be accomplished. Therefore, the purpose of this research was to determine current deloading practices in competitive strength and physique sports. Eighteen strength and physique coaches from a range of sports (weightlifting, powerlifting, and bodybuilding) participated in semi-structured interviews to discuss their experiences of deloading. The mean duration of coaching experience at ≥ national standard was 10.9 (SD = 3.9) years. Qualitative content analysis identified Three categories: definitions, rationale, and application. Participants conceptualised deloading as a periodic, intentional cycle of reduced training demand designed to facilitate fatigue management, improve recovery, and assist in overall training progression and readiness. There was no single method of deloading; instead, a reduction in training volume (achieved through a reduction in repetitions per set and number of sets per training session) and intensity of effort (increased proximity to failure and/or reduction in relative load) were the most adapted training variables, along with alterations in exercise selection and configuration. Deloading was typically prescribed for a duration of 5 to 7 days and programmed every 4 to 6 weeks, although periodicity was highly variable. Additional findings highlight the underrepresentation of deloading in the published literature, including a lack of a clear operational definition.
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Affiliation(s)
- Lee Bell
- Department of Sport and Physical Activity, Sheffield Hallam University, Sheffield, United Kingdom,Correspondence: Lee Bell
| | - David Nolan
- School of Health & Human Performance, Dublin City University, Dublin, Ireland,Department of Sport and Health Sciences, Technological University of the Shannon, Athlone, Westmeath, Ireland
| | - Velu Immonen
- Department of Sports and Exercise, Haaga-Helia University of Applied Sciences, Vierumäki, Finland, United Kingdom
| | - Eric Helms
- Sport Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, Auckland, New Zealand
| | - Jake Dallamore
- Department of Sport and Physical Activity, Sheffield Hallam University, Sheffield, United Kingdom
| | - Milo Wolf
- Centre for Health, Exercise and Sport Science, Solent University, Southampton, United Kingdom
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18
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Nonoyama T, Shigemi H, Kubota M, Matsumine A, Shigemi K, Ishizuka T. Neuromuscular electrical stimulation in the intensive care unit prevents muscle atrophy in critically ill older patients: A retrospective cohort study. Medicine (Baltimore) 2022; 101:e29451. [PMID: 35945760 PMCID: PMC9351912 DOI: 10.1097/md.0000000000029451] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Critically ill patients in the intensive care unit (ICU) develop muscle atrophy and decreased physical function. Though neuromuscular electrical stimulation (NMES) therapy has been shown to be effective in preventing this, but its effect on older patients is unknown. To examine the course of critically ill older patients treated with NMES in the ICU and to define the impact of its use. A retrospective cohort study was conducted using older ICU patients (≥65 years) categorized into a control group (n = 20) and an NMES group (n = 22). For subgroup analysis, each group was further classified into pre-old age (65-74 years) and old age (≥75 years). The control group showed significant decrease in muscle thickness during ICU and hospital stay. The NMES group showed lower reduction in muscle thickness and showed decrease in muscle echo intensity during hospital stay, compared to the control group. NMES inhibited decrease in muscle thickness in the pre-old age group versus the old age group. The decreasing effect of NMES on echo intensity during hospital stay manifested only in the pre-old age group. We did not find much difference in physical functioning between the NMES and control groups. Lower limb muscle atrophy reduces in critically ill older patients (≥65 years) with NMES and is pronounced in patients aged < 75 years. The impact of NMES on the physical functioning of older patients in ICU needs to be further investigated.
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Affiliation(s)
- Tadayoshi Nonoyama
- Third Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Eiheiji, Fukui, Japan
- Department of Rehabilitation, University of Fukui Hospital, Eiheiji, Fukui, Japan
- * Correspondence: Tadayoshi Nonoyama, PT, 23-3 Matsuoka-Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan (e-mail: )
| | - Hiroko Shigemi
- Division of Infection Control and Prevention, Faculty of Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masafumi Kubota
- Department of Rehabilitation, University of Fukui Hospital, Eiheiji, Fukui, Japan
- Department of Physical Therapy, Graduate Course of Rehabilitation Science, School of Health Sciences, College of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Akihiko Matsumine
- Department of Orthopedics and Rehabilitation Medicine, Faculty of Medical Sciences, University of Fukui, Eiheiji, Fukui, Japan
| | - Kenji Shigemi
- Department of Anesthesiology, Faculty of Medical Sciences, University of Fukui, Eiheiji, Fukui, Japan
| | - Tamotsu Ishizuka
- Third Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Eiheiji, Fukui, Japan
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19
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Inter-individual variations in response to aerobic and resistance training in hypertensive older adults. J Hypertens 2022; 40:1090-1098. [PMID: 35703877 DOI: 10.1097/hjh.0000000000003139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Hemodynamic responses to physical training are not homogenous and uniform, and considerable inter-individual variations in the blood pressure of hypertensive individuals are noted in both aerobic and resistance training protocols. In this context, this study aimed to evaluate the effects of resistance and aerobic exercise on the blood pressure responses of hypertensive older adults. METHODS Groups were randomly divided into resistance training, n = 20; aerobic training, n = 20; control group, n = 21). After the first intervention period (12 weeks), individuals underwent a washout period (six detraining weeks), followed by a second intervention. This process is called the 'cross-over' model, where individuals who performed the aerobic exercise protocol also performed resistance training and vice-versa, constituting another 12 weeks of intervention. Blood pressure, functional performance, glycated hemoglobin and lipid profiles were evaluated preintervention and postintervention. RESULTS Varying responses to resistance training or aerobic training stimuli were observed in the hypertensive older adult participants. Both resistance training (pre 133.2 ± 14.1; post 122.4 ± 7.3; P < 0.05) and aerobic training (pre 134.2 ± 14.4; post 123 ± 9.4; P < 0.0.5) were effective in decreasing SBP, but only aerobic training (pre 9955.3 ± 1769.4; post 8800.9 ± 1316.1; P < 0.05) resulted in a decreased double product, and only the resistance training group improved functional performance. CONCLUSION Responses to resistance training or aerobic training stimuli varied noticeably between hypertensive older adults and both resistance training and aerobic training were effective in reducing SBP. This knowledge may be useful in providing individually tailored exercise prescriptions for hypertensive older adults.
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Abiko T, Ohmae K, Murata S, Shiraiwa K, Horie J. Reliability of muscle thickness and echo intensity measurements of the quadriceps: A novice examiner. J Bodyw Mov Ther 2022; 31:164-168. [DOI: 10.1016/j.jbmt.2022.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 12/06/2021] [Accepted: 03/14/2022] [Indexed: 11/17/2022]
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Yoshiko A, Kaji T, Kozuka T, Sawazaki T, Akima H. Evaluation of rehabilitation exercise effects by using gradation-based skeletal muscle echo intensity in older individuals: a one-group before-and-after trial study. BMC Geriatr 2021; 21:485. [PMID: 34488651 PMCID: PMC8422694 DOI: 10.1186/s12877-021-02423-3] [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: 10/15/2020] [Accepted: 08/27/2021] [Indexed: 12/28/2022] Open
Abstract
Background Higher muscle echo intensity (EI) reflects higher content of fat and/or connective tissue within skeletal muscle, eventually inducing lower muscle strength, physical dysfunction, and metabolic impairment. Continuous exercise decreases muscle EI in older individuals; however, it is not well understood how several months’ rehabilitation exercise affects gradation-based EI. The purpose of this study was to investigate the effects of 6 months of rehabilitation exercise on gradation-based higher and lower EI in older men and women. Methods Twenty-seven men and women (7 men, 20 women; age, 75.6 ± 6.4 years; height, 154.3 ± 8.5 cm; weight, 55.8 ± 9.7 kg) participated in this study. This study was a one-group before-and-after trial. They needed long-term care for activities of daily living. They performed rehabilitation exercises consisting of resistance exercises using a hydraulic resistance machine, stretching, and aerobic exercises using a recumbent bicycle once or twice a week for 6 months. B-mode ultrasonographic transverse image was taken from thigh muscles, e.g., rectus femoris, vastus lateralis, and biceps femoris. We calculated gradation-based cross-sectional area (CSA) from thigh muscles by dividing 256 greyscale level to 10 different components levels (e.g., 0–24, 25–49, 50–74, …, 200–224 and 225–249 a.u.). Results Lowest EI (e.g., 0–24 a.u.) CSA of thigh muscle was significantly increased after the exercise (0.3 ± 0.3 to 1.0 ± 0.8 cm2; P < 0.05). Middle to higher EI (e.g., 50–74, 75–99, 100–124, 125–149, 150–174, 175–199 and 200–224 a.u.) CSAs were significantly decreased from 23.0 to 68.7% after the exercise (P < 0.05). Conclusions Several months’ rehabilitation exercise affected both lower and higher EI in older men and women. This result suggests that rehabilitation exercise changes muscle composition by increasing contractile muscle tissue and decreasing fat and connective tissues.
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Affiliation(s)
- Akito Yoshiko
- Faculty of Liberal Arts and Sciences, Chukyo University, Toyota, Aichi, Japan.
| | | | | | | | - Hiroshi Akima
- Research Center of Health, Physical Fitness & Sports, Nagoya University, Nagoya, Aichi, Japan.,Graduate School of Education and Human Development, Nagoya University, Nagoya, Aichi, Japan
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22
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Ransdell LB, Wayment HA, Lopez N, Lorts C, Schwartz AL, Pugliesi K, Pohl PS, Bycura D, Camplain R. The impact of resistance training on body composition, muscle strength, and functional fitness in older women (45-80 years): A systematic review (2010-2020). WOMEN 2021; 1:143-168. [PMID: 35702064 PMCID: PMC9191851 DOI: 10.3390/women1030014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023] Open
Abstract
As women age, they typically experience a progressive decrease in skeletal muscle mass and strength, which can lead to a decline in functional fitness and quality of life. Resistance training (RT) has the potential to attenuate these losses. Although well established for men, evidence regarding the benefits of RT for women is sparse and inconsistent: prior reviews include too few studies with women and do not adequately examine the interactive or additive impacts of workload, modalities, and nutritional supplements on outcomes such as muscle mass (MM), body composition (BC), muscle strength (MS), and functional fitness (FF). The purpose of this review is to identify these gaps. Thirty-eight papers published between 2010 and 2020 (in English) represent 2519 subjects (mean age = 66.89 ± 4.91 years). Intervention averages include 2 to 3 × 50 min sessions across 15 weeks with 7 exercises per session and 11 repetitions per set. Twelve studies (32%) examined the impact of RT plus dietary manipulation. MM, MS, and FF showed positive changes after RT. Adding RT to fitness regimens for peri- to postmenopausal women is likely to have positive benefits.
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Affiliation(s)
- Lynda B Ransdell
- College of Health and Human Sciences, Northern Illinois University, DeKalb, IL
| | - Heidi A Wayment
- Department of Psychological Sciences, Northern Arizona University, Flagstaff, AZ
| | - Nanette Lopez
- Department of Health Sciences, Northern Arizona University, Flagstaff, AZ
| | - Cori Lorts
- Department of Health Sciences, Northern Arizona University, Flagstaff, AZ
| | - Anna L Schwartz
- School of Nursing, Northern Arizona University, Flagstaff, AZ
| | - Karen Pugliesi
- Department of Sociology, Northern Arizona University, Flagstaff, AZ
| | - Patricia S Pohl
- Department of Physical Therapy and Athletic Training, Northern Arizona University, Flagstaff, AZ
| | - Dierdra Bycura
- Department of Health Sciences, Northern Arizona University, Flagstaff, AZ
| | - Ricky Camplain
- Department of Health Sciences, Northern Arizona University, Flagstaff, AZ
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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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25
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Yamaguchi K, Nakagawa K, Yoshimi K, Ariya C, Nakane A, Furuya J, Tohara H. Age-related changes in swallowing muscle intramuscular adipose tissue deposition and related factors. Exp Gerontol 2021; 153:111505. [PMID: 34343633 DOI: 10.1016/j.exger.2021.111505] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/24/2021] [Accepted: 07/27/2021] [Indexed: 01/22/2023]
Abstract
OBJECTIVES To investigate age-related changes in the intramuscular adipose tissue (IAT) of the tongue and geniohyoid muscle (GHM) and associated factors. DESIGN Exploratory cross-sectional study. SETTING AND PARTICIPANTS This study included 89 participants recruited from a health survey, which included 38 younger adults (age range, 20-63 years) and 51 older adults (age range, 65-87 years). MEASUREMENTS Age, body mass index, body fat, lean body mass, skeletal muscle mass index, trunk muscle mass index, tongue pressure, jaw opening force, and oral diadochokinesis were assessed. The cross-sectional area (CSA) and echo intensity (EI) of the tongue and GHM were measured using ultrasonography. IAT was assessed according to EI values. The factors related to the IAT of each muscle were examined using multiple regression analysis. We also investigated the correlation of IAT with factors related to oral function and systemic and morphological factors. RESULTS Neither the EI of the tongue nor that of the GHM had a significant correlation with factors related to oral function and systemic factors. In the multiple regression analysis, significant explanatory variables for EI of the tongue and GHM were age (β = 0.14, P = 0.019; tongue and β = 0.13, P = 0.017; GHM) and the CSA of each muscle (β = -0.01, P = 0.042; tongue and β = -0.04, P = 0.003; GHM). EI was positively associated with age and negatively associated with muscle CSA. CONCLUSION Age-related changes in the IAT show the same trend for both the tongue and GHM, unlike age-related changes in muscle mass. The IATs of the tongue and GHM were not significantly correlated with oral function and systemic factors. Therefore, EI may not be a useful index for the functional evaluation of the tongue and GHM.
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Affiliation(s)
- Kohei Yamaguchi
- Department of Dysphagia Rehabilitation, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan.
| | - Kazuharu Nakagawa
- Department of Dysphagia Rehabilitation, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Kanako Yoshimi
- Department of Dysphagia Rehabilitation, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Chantaramanee Ariya
- Department of Preventive Dentistry, Naresuan University, 99 Moo 9, Phitsanulok-Nakhon Sawan Road, Tha Pho, Mueang Phitsanulok 65000, Thailand
| | - Ayako Nakane
- Department of Dysphagia Rehabilitation, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Junichi Furuya
- Department of Dysphagia Rehabilitation, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan; Department of Geriatric Dentistry, Showa University School of Dentistry, 2-1-1 Kitasenzoku, Ohta-ku, Tokyo 145-8515, Japan
| | - Haruka Tohara
- Department of Dysphagia Rehabilitation, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
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Coelho-Júnior HJ, Uchida MC, Picca A, Bernabei R, Landi F, Calvani R, Cesari M, Marzetti E. Evidence-based recommendations for resistance and power training to prevent frailty in community-dwellers. Aging Clin Exp Res 2021; 33:2069-2086. [PMID: 33587271 DOI: 10.1007/s40520-021-01802-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/21/2021] [Indexed: 02/07/2023]
Abstract
Frailty is a reversible state of reduced resilience to stressful events resulting from a multisystem impairment of the human body. As frailty progresses, people become more vulnerable to numerous adverse events, including falls and fractures, cognitive decline, disability, hospitalization, nursing home placement, and death. As such, substantial health care costs are associated with frailty. These features have led to the recognition of frailty as a public health problem. The identification of strategies for the management of frailty has, therefore, become a topic of extensive instigation. In this context, resistance (RT) and power training (PT) have received considerable attention, and experts in the field have recently suggested that both training modalities may improve frailty-related parameters. However, most studies have only included robust people and investigated frailty as a secondary outcome, so that current literature only allows RT and PT preventive programs against frailty to be designed. Here, we provide evidence-based critical recommendations for the prescription of RT and PT programs against incident frailty in community-dwellers.
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Affiliation(s)
- Hélio José Coelho-Júnior
- Università Cattolica del Sacro Cuore, 00168, Rome, Italy.
- Applied Kinesiology Laboratory-LCA, School of Physical Education, University of Campinas, Campinas, 13083-970, Brazil.
- Rehabilitation Unit, Lar Mãe Mariana Nursing Home, Poá, Brazil.
| | - Marco Carlos Uchida
- Applied Kinesiology Laboratory-LCA, School of Physical Education, University of Campinas, Campinas, 13083-970, Brazil
| | - Anna Picca
- Department of Geriatrics and Internal Medicine, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Università Cattolica del Sacro Cuore. L.Go F, Vito 1, 00168, Rome, Italy
| | - Roberto Bernabei
- Università Cattolica del Sacro Cuore, 00168, Rome, Italy
- Department of Geriatrics and Internal Medicine, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Università Cattolica del Sacro Cuore. L.Go F, Vito 1, 00168, Rome, Italy
| | | | - Riccardo Calvani
- Department of Geriatrics and Internal Medicine, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Università Cattolica del Sacro Cuore. L.Go F, Vito 1, 00168, Rome, Italy
| | - Matteo Cesari
- Department of Clinical Sciences and Community Health, Università di Milano, 20122, Milan, Italy
- Geriatric Unit, IRCCS Istutiti Clinici Scientifici Maugeri, 20138, Milan, Italy
| | - Emanuele Marzetti
- Università Cattolica del Sacro Cuore, 00168, Rome, Italy.
- Department of Geriatrics and Internal Medicine, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Università Cattolica del Sacro Cuore. L.Go F, Vito 1, 00168, Rome, Italy.
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27
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Rush B, Binkley N, Krueger D, Yamada Y, Kuchnia AJ. Combination of DXA and BIS Predicts Jump Power Better Than Traditional Measures of Sarcopenia. JBMR Plus 2021; 5:e10527. [PMID: 34368612 PMCID: PMC8328796 DOI: 10.1002/jbm4.10527] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 12/20/2022] Open
Abstract
Traditional diagnostic criteria for sarcopenia use dual-energy X-ray absorptiometry (DXA)-measured appendicular lean mass (ALM), normalized to height (ALM/ht2) or body mass index (ALM/BMI) to define low muscle mass. However, muscle function declines with aging before the loss of muscle mass is detected by ALM. This is likely due, in part, to qualitative muscle changes such as extracellular and intracellular fluid compartment shifts uncaptured by DXA. We propose combining bioimpedance spectroscopy (BIS), which estimates extracellular and intracellular compartment volume, with DXA to more accurately predict muscle function. This combination may help incorporate muscle quality, thereby improving sarcopenia diagnosis. We cross-sectionally analyzed data from 248 Black and White participants aged 25 to 75 years from the Midlife in the United States Refresher Cohort. We proposed two novel muscle measures: ALM corrected by the BIS-derived whole-body extracellular to intracellular fluid ratio (E/I) and leg lean mass (LLM) corrected by leg-specific E/I, creating (ALM/(E/I)W) and (LLM/(E/I)L), respectively. We compared the associations of traditional muscle measures, ALM/(E/I)W, and LLM/(E/I)L, with grip strength and lower limb power using jumping mechanography. LLM/(E/I)L explained jump power best at R 2 = 0.803 compared with ALM/(E/I)W (p < 0.0001) and all other measures. ALM/(E/I)W explained jump power second best (R 2 = 0.759) but not significantly better than traditional muscle measures. No muscle measure performed better than covariates when predicting handgrip strength. LLM/(E/I)L outperformed ALM/ht2 and ALM/BMI when predicting jump power. We propose LLM/(E/I)L is a powerful and clinically relevant method that accounts for muscle quality. © 2021 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Benjamin Rush
- Department of Nutritional Sciences University of Wisconsin-Madison Madison WI USA
| | - Neil Binkley
- University of Wisconsin Osteoporosis Clinical Research Program Madison WI USA
| | - Diane Krueger
- University of Wisconsin Osteoporosis Clinical Research Program Madison WI USA
| | - Yosuke Yamada
- Department of Physical Activity, National Institute of Health and Nutrition National Institutes of Biomedical Innovation, Health and Nutrition Tokyo Japan
| | - Adam J Kuchnia
- Department of Nutritional Sciences University of Wisconsin-Madison Madison WI USA
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28
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Song JS, Abe T, Bell ZW, Wong V, Spitz RW, Yamada Y, Loenneke JP. The Relationship Between Muscle Size and Strength Does not Depend on Echo Intensity in Healthy Young Adults. J Clin Densitom 2021; 24:406-413. [PMID: 33020041 DOI: 10.1016/j.jocd.2020.09.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 12/13/2022]
Abstract
Muscle quality is typically defined as muscle strength relative to muscle size. Echo intensity has gained popularity as an index of skeletal muscle quality. There is common agreement that muscle size is related to strength at baseline and echo intensity is purported to impact this relationship. Thus, the purpose of this study was to examine whether echo intensity can be used as a physiological marker for muscle quality by investigating the moderating effect of echo intensity on the relationship between muscle size and strength. A sample of 96 participants was used for the upper body analysis and a separate sample of 96 participants was used for the lower body analysis. Echo intensity, muscle thickness, and strength measurements were measured on each limb. For strength, participants performed unilateral elbow flexion (upper body analysis) and knee extension (lower body analysis) to quantify 1-repetition maximum. Muscle thickness and echo intensity were determined from images captured using B-mode ultrasound. Muscle size correlated with muscle strength for all limbs. However, the relationship between muscle size and strength was not significantly moderated by echo intensity for Arm 1 (b = 0.042, p = 0.54) or Arm 2 (b = -0.002, p = 0.97). At the proximal site, no significant moderating effect of echo intensity was found in Leg 1 (b = 0.037, p = 0.67) or Leg 2 (b = -0.085, p = 0.29). Similarly, no significant moderating effect was observed at the distal site for Leg 1 (b = 0.03, p = 0.69) or Leg 2 (b = -0.026, p = 0.75). The results would indicate that the relationship between muscle size and strength does not depend on echo intensity. Therefore, the use of echo intensity as an index of muscle quality in healthy young adults may need to be reconsidered.
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Affiliation(s)
- Jun Seob Song
- Department of Health, Exercise Science, & Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA
| | - Takashi Abe
- Department of Health, Exercise Science, & Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA
| | - Zachary W Bell
- Department of Health, Exercise Science, & Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA
| | - Vickie Wong
- Department of Health, Exercise Science, & Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA
| | - Robert W Spitz
- Department of Health, Exercise Science, & Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA
| | - Yujiro Yamada
- Department of Health, Exercise Science, & Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA
| | - Jeremy P Loenneke
- Department of Health, Exercise Science, & Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA.
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29
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Cunha PM, Tomeleri CM, Nascimento MA, Mayhew JL, Fungari E, Cyrino LT, Barbosa DS, Venturini D, Cyrino ES. Comparision of Low and High Volume of Resistance Training on Body Fat and Blood Biomarkers in Untrained Older Women: A Randomized Clinical Trial. J Strength Cond Res 2021; 35:1-8. [PMID: 31306389 DOI: 10.1519/jsc.0000000000003245] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
ABSTRACT Cunha, PM, Tomeleri, CM, Nascimento, MA, Mayhew, JL, Fungari, E, Cyrino, LT, Barbosa, DS, Venturini, D, and Cyrino, ES. Comparision of low and high volume of resistance training on body fat and blood biomarkers in untrained older women: a randomized clinical trial. J Strength Cond Res 35(1): 1-8, 2021-The purpose of this study was to compare the effects of resistance training (RT) performed with 2 different volumes on body fat and blood biomarkers in untrained older women. Sixty-five physically independent older women (≥60 years) were randomly assigned to one of 3 groups: low-volume (LV) training group, high-volume (HV) training group, and a control group. Both training groups performed RT for 12 weeks, using 8 exercises of 10-15 repetitions maximum for each exercise. The low-volume group performed only a single set per exercise, whereas the HV group performed 3 sets. Anthropometric, body fat (%), trunk fat, triglycerides (TG), total cholesterol, low-density lipoprotein cholesterol (LDL-c), high-density lipoprotein cholesterol, very LDL-c (VLDL-c), glucose (GLU), C-reactive protein (CRP), and composite Z-score were measured. The HV group obtained greater improvements compared with the LV group (p < 0.05) for TG (LV = -10.5% vs. HV = -16.6%), VLDL-c (LV = -6.5% vs. HV = -14.8%), GLU (LV = -4.7% vs. HV = -11.1%), CRP (LV = -13.2% vs. HV = -30.8%), % body fat (LV = -2.4% vs. HV = -6.1%), and composite Z-score (LV = -0.13 ± 0.30 vs. HV = -0.57 ± 0.29). Trunk fat was reduced (p < 0.05) only in the HV group (-6.8%). We conclude that RT performed in higher volume seems to be the most appropriate strategy to reduce body fat (%), trunk fat, improve blood biomarkers, and reduce composite Z-score in older women.
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Affiliation(s)
- Paolo M Cunha
- Metabolism, Nutrition, and Exercise Laboratory, Londrina State University, Londrina, Puerto Rico, Brazil
| | - Crisieli M Tomeleri
- Metabolism, Nutrition, and Exercise Laboratory, Londrina State University, Londrina, Puerto Rico, Brazil
| | - Matheus A Nascimento
- Metabolism, Nutrition, and Exercise Laboratory, Londrina State University, Londrina, Puerto Rico, Brazil.,Paraná State University-UNESPAR, Paranavaí, Puerto Rico, Brazil
| | - Jerry L Mayhew
- Exercise Science Program, Truman State University, Kirksville, Missouri; and
| | - Edilaine Fungari
- Metabolism, Nutrition, and Exercise Laboratory, Londrina State University, Londrina, Puerto Rico, Brazil
| | - Letícia T Cyrino
- Metabolism, Nutrition, and Exercise Laboratory, Londrina State University, Londrina, Puerto Rico, Brazil
| | - Décio S Barbosa
- Clinical Analyses Laboratory, Londrina State University, Londrina, Brazil
| | - Danielle Venturini
- Clinical Analyses Laboratory, Londrina State University, Londrina, Brazil
| | - Edilson S Cyrino
- Metabolism, Nutrition, and Exercise Laboratory, Londrina State University, Londrina, Puerto Rico, Brazil
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30
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Komforti D, Joffe C, Magras A, Peller A, Garbe E, Garib R, Trapuzzano A, Dawson N, Stock MS. Does skeletal muscle morphology or functional performance better explain variance in fast gait speed in older adults? Aging Clin Exp Res 2021; 33:921-931. [PMID: 32451962 DOI: 10.1007/s40520-020-01596-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/11/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Fast gait speed is being increasingly recognized as an important clinical tool in older adults. However, the underlying muscular and functional contributors to fast gait speed performance remain poorly understood. AIM We sought to determine predictors of fast gait speed in older adults. We hypothesized that lower-extremity skeletal muscle size and quality would be strong predictors. METHODS Ninety community-dwelling older adults (33 men, 57 women; mean ± SD age = 74 ± 6 years) participated. B-mode ultrasonography was used to capture images of the vastus lateralis, rectus femoris, and gastrocnemius in the transverse plane. Each participant performed 30-second chair stand, heel-rise, functional reach, and grip strength tests. Fast gait speed was measured using the NIH Toolbox 4-Meter Walk Test. ImageJ software was used to quantify cross-sectional area (CSA), subcutaneous tissue thickness, and echo intensity. Two separate stepwise regression analyses were performed, one using muscle morphology variables as independent variables, and another including the functional outcomes. RESULTS The ultrasound variables exhibited weak-to-moderate correlations with fast gait speed (|r| range = 0.168-0.416). The initial regression analysis indicated that the combination of medial gastrocnemius CSA and subcutaneous tissue thickness explained 22.8% of the variance in fast gait speed. The secondary analysis indicated that 30-second chair stand, heel-rise, and grip strength performance explained 45.5% of the variance. CONCLUSION While medial gastrocnemius morphology is important, measures of upper and lower-extremity muscle function are better predictors of fast gait speed. These results highlight a dissociation between skeletal muscle morphology and fast gait speed.
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31
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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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Ikezoe T. Age-Related Change in Muscle Characteristics and Resistance Training for Older Adults. Phys Ther Res 2021; 23:99-105. [PMID: 33489646 DOI: 10.1298/ptr.r0009] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 09/13/2020] [Indexed: 11/23/2022]
Abstract
In older adults, muscle weakness contributes greatly to functional restrictions on daily living activities, increased risk of falls, and adverse physiological changes. It has been suggested that not only muscle mass but also muscular infiltration of noncontractile elements may influence muscular performance such as strength and rapid force production. It is proved that resistance training may provoke substantial increases in muscle size even if it is performed at low intensities in older individuals. Also, recent studies have demonstrated the effectiveness of resistance training on muscle quality such as muscular infiltration of noncontractile elements for older people. This review shows the age-related changes in muscle mass and muscle quality, which were measured by muscle echo intensity on ultrasound images, and low-intensity resistance training effects on muscle volume and muscle quality.
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Affiliation(s)
- Tome Ikezoe
- Human Health Sciences, Graduate School of Medicine, Kyoto University
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Stock MS, Thompson BJ. Echo intensity as an indicator of skeletal muscle quality: applications, methodology, and future directions. Eur J Appl Physiol 2020; 121:369-380. [PMID: 33221942 DOI: 10.1007/s00421-020-04556-6] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/07/2020] [Indexed: 12/14/2022]
Abstract
PURPOSE This narrative review provides an overview of the current knowledge of B-mode ultrasound-derived echo intensity (EI) as an indicator of skeletal muscle quality. METHOD PubMed and Google Scholar were used to search the literature. Advanced search functions were used to find original studies with the terms 'echo intensity' and/or 'muscle quality' in the title and/or abstract. Publications that conceptually described muscle quality but did not include measurement of EI were not a focus of the review. RESULT Importantly, the foundational premise of EI remains unclear. While it is likely that EI reflects intramuscular adiposity, data suggesting that these measurements are influenced by fibrous tissue is limited to diseased muscle and animal models. EI appears to show particular promise in studying muscular aging. Studies have consistently reported an association between EI and muscle function, though not all chronic interventions have demonstrated improvements. Based on the existing literature, it is unclear if EI can be used as a marker of muscle glycogen following exercise and nutritional interventions, or if EI is influenced by hydration status. Inconsistent methodological approaches used across laboratories have made comparing EI studies challenging. Image depth, rest duration, participant positioning, probe tilt, and the decision to correct for subcutaneous adipose tissue thickness are all critical considerations when interpreting the literature and planning studies. CONCLUSION While some areas show conflicting evidence, EI shows promise as a novel tool for studying muscle quality. Collaborative efforts focused on methodology are necessary to enhance the consistency and quality of the EI literature.
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Affiliation(s)
- Matt S Stock
- School of Kinesiology and Physical Therapy, University of Central Florida, 12805 Pegasus Drive, HPA 1, Room 258, Orlando, FL, 32816-2205, USA. .,Neuromuscular Plasticity Laboratory, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, USA.
| | - Brennan J Thompson
- Department of Kinesiology and Health Science, Utah State University, Logan, UT, USA.,Sorenson Legacy Foundation Center for Clinical Excellence, Movement Research Clinic, Utah State University, Logan, UT, USA
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Dankel SJ, Abe T, Bell ZW, Jessee MB, Buckner SL, Mattocks KT, Mouser JG, Loenneke JP. The Impact of Ultrasound Probe Tilt on Muscle Thickness and Echo-Intensity: A Cross-Sectional Study. J Clin Densitom 2020; 23:630-638. [PMID: 30454951 DOI: 10.1016/j.jocd.2018.10.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/19/2018] [Accepted: 10/22/2018] [Indexed: 11/28/2022]
Abstract
INTRODUCTION/BACKGROUND To determine the influence of ultrasound probe tilt on reliability and overall changes in muscle thickness and echo-intensity. MATERIALS AND METHODS Thirty-six individuals had a total of 15 images taken on both the biceps brachii and tibialis anterior muscles. These images were taken in 2° increments with the probe tilted either upward (U) or downward (D) from perpendicular (0°) to the muscle (U6°, U4°, U2°, 0°, D2°, D4°, and D6°). All images were then saved, stored, and analyzed using Image-J software for echo-intensity and muscle thickness measures. Mean values (2-3 measurements within each probe angle) were compared across each probe angle, and reliability was assessed as if the first measure was taken perpendicular to the muscle, but the second measure was taken with the probe tilted to a different angle (to assume unintentional adjustments in reliability from probe tilt). RESULTS Tilting the probe as little as 2° produced a significant 4.7%, and 10.5% decrease in echo-intensity of the tibialis anterior and biceps brachii muscles, respectively, while changes in muscle thickness were negligible (<1%) at all probe angles. The reliability for muscle thickness was greater than that of echo-intensity when the probe was held perpendicular at both measurements (∼1% vs 3%), and the impact that probe tilt had on reliability was exacerbated for echo-intensity measurements (max coefficient of variation: 24.5%) compared to muscle thickness (max coefficient of variation: 1.5%). CONCLUSION While muscle thickness is less sensitive to ultrasound probe tilt, caution should be taken to ensure minimal probe tilt is present when taking echo-intensity measurements as this will alter mean values and reduce reliability. Echo-intensity values should be interpreted cautiously, particularly when comparing values across technicians/studies where greater alterations in probe tilt is likely.
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Affiliation(s)
- Scott J Dankel
- Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA
| | - Takashi Abe
- Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA
| | - Zachary W Bell
- Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA
| | - Matthew B Jessee
- School of Kinesiology, University of Southern Mississippi, Hattiesburg, MS, USA
| | - Samuel L Buckner
- Division of Exercise Science, University of South Florida, Tampa, FL, USA
| | - Kevin T Mattocks
- Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA
| | - J Grant Mouser
- Department of Kinesiology and Health Promotion, Troy University, Troy, AL, USA
| | - Jeremy P Loenneke
- Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA.
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Tufano JJ, Vetrovsky T, Stastny P, Steffl M, Malecek J, Omcirk D. Assisted Jumping in Healthy Older Adults: Optimizing High-Velocity Training Prescription. J Strength Cond Res 2020; 36:1518-1523. [PMID: 32639371 DOI: 10.1519/jsc.0000000000003661] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Tufano, JJ, Vetrovsky, T, Stastny, P, Steffl, M, Malecek, J, and Omcirk, D. Assisted jumping in healthy older adults: optimizing high-velocity training prescription. J Strength Cond Res XX(X): 000-000, 2020-Because older adults benefit from power training, training strategies for athletes such as supramaximal velocity-assisted jumping could also be useful for older adults. However, optimizing-assisted exercise prescription in older adults remains uninvestigated. Therefore, the purpose of this study was to determine the effects of different bodyweight (BW) assistance levels on jumping force and velocity in healthy older adults. Twenty-three healthy older adults (67.6 ± 7.6 years, 167.0 ± 8.8 cm, 72.7 ± 14.3 kg, and 27.1 ± 6.9% body fat) performed 5 individual countermovement jumps at BW, 90, 80, 70, and 60% of BW. Jumps were performed on a force plate, which provided peak take-off force (TOF), flight time, and peak impact force. A linear position transducer measured peak concentric velocity (PV). The rating of perceived exertion (RPE) was also assessed after each condition. Take-off force was greater during BW than all other conditions, 90 and 80% were greater than 70 and 60%, but there were no differences between 80 and 90% or between 70 and 60%. The FT progressively increased at all assistance levels, and PV was faster for all assistance levels than BW, with no differences between assistance levels. Impact force was greater during BW than 80, 70, and 60% and was greater during 90% than 60%. The RPE was less than BW during all assistance conditions but was the least during 70%. Implementing assisted jumping between 70 and 80% of BW in older adults likely provides the ideal combination of force, velocity, and RPE.
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Affiliation(s)
- James J Tufano
- Faculty of Physical Education and Sport, Charles University in Prague, Prague, Czech Republic
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Lopez P, Crosby BJ, Robetti BP, Turella DJP, Weber TAS, de Oliveira ML, Rech A. Effects of an 8-week resistance training intervention on plantar flexor muscle quality and functional capacity in older women: A randomised controlled trial. Exp Gerontol 2020; 138:111003. [PMID: 32562747 DOI: 10.1016/j.exger.2020.111003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/27/2020] [Accepted: 06/13/2020] [Indexed: 01/11/2023]
Abstract
The present study examined 8 weeks of resistance training and its effects on muscle quality measures, plantar flexor muscle strength, muscle thickness and functional capacity in older women. Moreover, we tested if changes in muscle quality were associated with functional capacity. Twenty-four older women (66.3 ± 5.8 years; 69.0 ± 3.0 kg; 25.3 ± 1.4 kg·m-2) were recruited to the study. After completion of the baseline assessment, participants were randomly assigned to either the resistance training (RET, n = 12) or an active control group (CTR, n = 12). Muscle quality was evaluated through muscle echo intensity (MQEI) and specific tension (MQST). Muscle thickness, unilateral plantar flexor muscle strength and functional tests were evaluated at baseline and after the training period. After 8 weeks, both MQEI and MQST did not respond to the intervention. Furthermore, significant changes in stair climb performance (P < 0.05) were not associated with plantar flexor-derived muscle quality (P > 0.05). Finally, significant gains in muscle hypertrophy were observed in the RET group (P < 0.01), while muscle strength failed to change significantly (P > 0.05). In conclusion, a resistance training program provided significant benefits in the stair climb test, unrelated to plantar flexor-derived muscle quality measures as previously demonstrated in quadriceps femoris.
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Affiliation(s)
- Pedro Lopez
- Exercise Medicine Research Institute, Edith Cowan University, Perth, Western Australia, Australia.
| | - Brendan James Crosby
- Exercise Medicine Research Institute, Edith Cowan University, Perth, Western Australia, Australia
| | | | | | | | | | - Anderson Rech
- Universidade de Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
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Ribeiro AS, Picoloto A, Nunes JP, Bezerra ES, Schoenfeld BJ, Cyrino ES. Effects of Different Resistance Training Loads on the Muscle Quality Index in Older Women. J Strength Cond Res 2020; 36:1445-1449. [DOI: 10.1519/jsc.0000000000003667] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abdalla PP, Dos Santos Carvalho A, Dos Santos AP, Venturini ACR, Alves TC, Mota J, de Sousa Oliveira A, Ramos NC, Marini JAG, Machado DRL. Cut-off points of knee extension strength allometrically adjusted to identify sarcopenia risk in older adults: A cross-sectional study. Arch Gerontol Geriatr 2020; 89:104100. [PMID: 32470897 DOI: 10.1016/j.archger.2020.104100] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 04/27/2020] [Accepted: 05/05/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE Handgrip strength used to identify sarcopenia is not representative of overall strength, especially as greater muscle volume and consequent autonomy-mobility are concentrated in the lower limbs. While absolute strength or relative to body mass is used to define sarcopenia, this relationship is not always linear. The aim of this study was to establish allometrically adjusted cut-off points of lower limb (quadriceps) muscle strength to identify sarcopenia risk in older adults. METHODS ninety-four physically independent individuals over the age of 60 were measured by DXA and sarcopenia was identified. The one-repetition maximum (1RM) test of knee extension strength was estimated using the extensor chair by the submaximal repetition protocol. The six-minute walk test performance was recorded. 1RM values were scaled by body mass (1RM/body mass) and allometrically adjusted (1RM/body massb). Cut-off points for sarcopenia from 1RM were defined with ROC curve and Youden index with functional limitation (walking distance<400 m). Analyzes considered sex (α = 5%). RESULTS Sarcopenia was present in 10.6 % of participants. The exponents b obtained were 0.70 for women and 0.96 for men. Except for absolute 1RM in women, all areas under the curve were acceptable (>0.70). The cut-off points for women and men were respectively, 38.1 and 56.1 kg for 1RM, 0.53 and 0.85 for 1RM/body mass, 1.48 and 1.00 for 1RM/body massb. CONCLUSIONS 1RM of knee extension scaled by body mass or allometrically adjusted is an effective parameter to identify sarcopenia in older adults. The proposed cut-off points could be used to monitor sarcopenia risk in geriatrics.
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Affiliation(s)
| | | | | | | | | | - Jorge Mota
- Center for Research in Physical Activity, Health and Leisure (CIAFEL), University of Porto, Porto, Portugal
| | - Alcivandro de Sousa Oliveira
- School of Physical Education and Sport of Ribeirão Preto at the University of São Paulo at Ribeirão Preto, SP, Brazil
| | - Nilo Cesar Ramos
- Graduate and Specialty Studies, Coastal Carolina University, Conway, United States
| | - José Augusto Gonçalves Marini
- School of Physical Education and Sport of Ribeirão Preto at the University of São Paulo at Ribeirão Preto, SP, Brazil
| | - Dalmo Roberto Lopes Machado
- College of Nursing of the University of São Paulo at Ribeirão Preto, SP, Brazil; School of Physical Education and Sport of Ribeirão Preto at the University of São Paulo at Ribeirão Preto, SP, Brazil
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Cunha PM, Nunes JP, Tomeleri CM, Nascimento MA, Schoenfeld BJ, Antunes M, Gobbo LA, Teixeira D, Cyrino ES. Resistance Training Performed With Single and Multiple Sets Induces Similar Improvements in Muscular Strength, Muscle Mass, Muscle Quality, and IGF-1 in Older Women: A Randomized Controlled Trial. J Strength Cond Res 2020; 34:1008-1016. [DOI: 10.1519/jsc.0000000000002847] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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MacLennan RJ, Sahebi M, Becker N, Davis E, Garcia JM, Stock MS. Declines in skeletal muscle quality vs. size following two weeks of knee joint immobilization. PeerJ 2020; 8:e8224. [PMID: 31976172 PMCID: PMC6964688 DOI: 10.7717/peerj.8224] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 11/15/2019] [Indexed: 12/27/2022] Open
Abstract
Background Disuse of a muscle group, which occurs during bedrest, spaceflight, and limb immobilization, results in atrophy. It is unclear, however, if the magnitude of decline in skeletal muscle quality is similar to that for muscle size. The purpose of this study was to examine the effects of two weeks of knee joint immobilization on vastus lateralis and rectus femoris echo intensity and cross-sectional area. Methods Thirteen females (mean ± SD age = 21 ± 2 years) underwent two weeks of left knee joint immobilization via ambulating on crutches and use of a brace. B-mode ultrasonography was utilized to obtain transverse plane images of the immobilized and control vastus lateralis and rectus femoris at pretest and following immobilization. Effect size statistics and two-way repeated measures analyses of variance were used to interpret the data. Results No meaningful changes were demonstrated for the control limb and the rectus femoris of the immobilized limb. Analyses showed a large increase in vastus lateralis echo intensity (i.e., decreased muscle quality) for the immobilized limb (p = .006, Cohen’s d = .918). For vastus lateralis cross-sectional area, no time × limb interaction was observed (p = .103), but the effect size was moderate (d = .570). There was a significant association between the increase in vastus lateralis echo intensity and the decrease in cross-sectional area (r = − .649, p = .016). Conclusion In female participants, two weeks of knee joint immobilization resulted in greater deterioration of muscle quality than muscle size. Echo intensity appears to be an attractive clinical tool for monitoring muscle quality during disuse.
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Affiliation(s)
- Rob J MacLennan
- School of Kinesiology and Physical Therapy, University of Central Florida, Orlando, FL, United States of America
| | - Michael Sahebi
- School of Kinesiology and Physical Therapy, University of Central Florida, Orlando, FL, United States of America
| | - Nathan Becker
- School of Kinesiology and Physical Therapy, University of Central Florida, Orlando, FL, United States of America
| | - Ethan Davis
- School of Kinesiology and Physical Therapy, University of Central Florida, Orlando, FL, United States of America
| | - Jeanette M Garcia
- Department of Health Sciences, University of Central Florida, Orlando, FL, United States of America
| | - Matt S Stock
- School of Kinesiology and Physical Therapy, University of Central Florida, Orlando, FL, United States of America
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Exercise induced changes in echo intensity within the muscle: a brief review. J Ultrasound 2020; 23:457-472. [PMID: 31925731 DOI: 10.1007/s40477-019-00424-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 12/19/2019] [Indexed: 02/07/2023] Open
Abstract
Echo intensity is the mean pixel intensity of a specific region of interest from an ultrasound image. This variable has been increasingly used in the literature as a physiological marker. Although there has been an increased interest in reporting changes in echo intensity in response to exercise, little consensus exists as to what a change in echo intensity represents physiologically. The purpose of this paper is to review some of the earliest, as well as the most up to date literature regarding the changes in echo intensity in response to exercise. Echo intensity has been used to measure muscle quality, muscle damage, acute swelling, and intramuscular glycogen. The changes in echo intensity, however, are not consistent throughout the literature and often times lead to conclusions that seem contrary to the physiologic effects of exercise. For example, echo intensity increases in conjunction with increases in strength, contrary to what would be expected if echo intensity was a marker of muscle quality/muscle damage. It is conceivable that a change in echo intensity represents a range of physiologic effects at different time points. We recommend that these effects should be determined experimentally in order to rule out what echo intensity might and might not represent. Until this is done, caution should be employed when interpreting changes in echo intensity with acute and chronic exercise.
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Muscle quality and functionality in older women improve similarly with muscle power training using one or three sets. Exp Gerontol 2019; 128:110745. [DOI: 10.1016/j.exger.2019.110745] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/29/2019] [Accepted: 09/30/2019] [Indexed: 11/21/2022]
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Nijholt W, Jager-Wittenaar H, Raj IS, van der Schans CP, Hobbelen H. Reliability and validity of ultrasound to estimate muscles: A comparison between different transducers and parameters. Clin Nutr ESPEN 2019; 35:146-152. [PMID: 31987109 DOI: 10.1016/j.clnesp.2019.10.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 10/14/2019] [Accepted: 10/24/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND AND AIMS We aimed to investigate the test-retest reliability and validity of ultrasound for two commonly used types of transducer, using different methods for the estimation of muscle size and echo intensity (EI). METHODS Fourteen healthy adults were included in this study. Ultrasound images of the rectus femoris size (thickness in cm and cross-sectional area [CSA] in cm2), obtained at the mid-thigh, were validated against MRI. Both a linear and a curved array transducer were used to assess rectus femoris size and EI (values 0-255, higher scores indicating increased intramuscular fat and interstitial fibrous tissue). To assess test-retest reliability of ultrasound, participants were tested twice, with a one-week interval. Validity and reliability were evaluated using paired sample t-tests, intraclass correlation coefficient (ICC), and Bland-Altman plots. RESULTS No significant differences between the repeated evaluations of rectus femoris thickness, CSA and EI were found. Reliability for thickness and CSA evaluations was excellent for both transducers (ICC = 0.87-0.97) and moderate for EI (ICC = 0.42-0.44). Mean difference between MRI and ultrasound for CSA (curved = 0.59 cm2, p = 0.086; linear = 2.1 cm2, p = 0.002) and thickness (curved = 0.31 cm, p = 0.01; linear = 0.21 cm, p = 0.043) were small but significant, except for CSA using a curved transducer. Agreement between ultrasound and MRI ranged from moderate for thickness (ICC = 0.45) to excellent for CSA (ICC = 0.92). CONCLUSIONS Our study demonstrates that the test-retest reliability and validity of muscle size estimation by ultrasound for both curved and linear array transducers seems to be adequate. Future studies should focus on the longitudinal evaluation of muscle size and EI by ultrasound.
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Affiliation(s)
- Willemke Nijholt
- Hanze University of Applied Sciences, Research Group Healthy Ageing, Allied Health Care and Nursing, Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Department of Rehabilitation Medicine, Groningen, the Netherlands.
| | - Harriët Jager-Wittenaar
- Hanze University of Applied Sciences, Research Group Healthy Ageing, Allied Health Care and Nursing, Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Department of Maxillofacial Surgery, Groningen, the Netherlands.
| | - Isaac S Raj
- Royal Melbourne Institute of Technology University, Discipline of Exercise Sciences, School of Health and Biomedical Sciences, Bundoora, Victoria, Australia.
| | - Cees P van der Schans
- Hanze University of Applied Sciences, Research Group Healthy Ageing, Allied Health Care and Nursing, Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Department of Rehabilitation Medicine, Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Health Psychology Research, Groningen, the Netherlands.
| | - Hans Hobbelen
- Hanze University of Applied Sciences, Research Group Healthy Ageing, Allied Health Care and Nursing, Groningen, the Netherlands; Department of General Practice and Elderly Care Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
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Bezerra EDS, Diefenthaeler F, Sakugawa RL, Cadore EL, Izquierdo M, Moro ARP. Effects of different strength training volumes and subsequent detraining on strength performance in aging adults. J Bodyw Mov Ther 2019; 23:466-472. [DOI: 10.1016/j.jbmt.2019.01.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 01/26/2019] [Indexed: 10/27/2022]
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Nunes PR, Barcelos LC, Oliveira AA, Furlanetto R, Martins FM, Resende EA, Orsatti FL. Muscular Strength Adaptations and Hormonal Responses After Two Different Multiple-Set Protocols of Resistance Training in Postmenopausal Women. J Strength Cond Res 2019; 33:1276-1285. [DOI: 10.1519/jsc.0000000000001788] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Leal LC, Abrahin O, Rodrigues RP, da Silva MC, Araújo AP, de Sousa EC, Pimentel CP, Cortinhas-Alves EA. Low-volume resistance training improves the functional capacity of older individuals with Parkinson's disease. Geriatr Gerontol Int 2019; 19:635-640. [PMID: 31037806 DOI: 10.1111/ggi.13682] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 03/02/2019] [Accepted: 04/10/2019] [Indexed: 11/27/2022]
Abstract
AIM To evaluate the effects of low-volume resistance training on the physical and functional capacity of older patients with Parkinson's disease. METHODS A total of 54 patients (aged ≥60 years) were randomly divided into two groups: (i) a control group comprising 13 men and 14 women; and (ii) a resistance training group with 14 men and 13 women. The resistance training group, in addition to maintaining their pharmacological treatments, carried out 6 months of resistance training twice a week, whereas the control group maintained their pharmacological treatments. Handgrip strength, flexibility, aerobic endurance, gait speed and balance were assessed in both groups. RESULTS After 6 months, patient functionality in the control group was reduced, whereas patients who carried out low training volumes showed significantly improved flexibility (Pre × Post: P = 0.008), aerobic resistance (Pre × Post: P = 0.006), gait speed (Pre × Post: P = 0.006) and balance (Pre × Post: P = 0.043). Significant improvement (P = 0.042) was also observed in right handgrip strength in the resistance training group. CONCLUSIONS The results of the present study showed that low-volume resistance training improves the physical capacity of older people with Parkinson's disease. Therefore, we suggest that resistance training be a central component in exercise programs for patients with Parkinson's disease. Geriatr Gerontol Int 2019; 19: 635-640.
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Affiliation(s)
- Leon Cp Leal
- Department of Physical Education, Exercise Biochemistry Laboratory, Pará State University, Belém, Brazil.,Department of Physical Education, Resistance Exercise and Health Laboratory, Pará State University, Belém, Brazil
| | - Odilon Abrahin
- Department of Physical Education, Resistance Exercise and Health Laboratory, Pará State University, Belém, Brazil
| | - Rejane P Rodrigues
- Department of Physical Education, Resistance Exercise and Health Laboratory, Pará State University, Belém, Brazil
| | - Maria Cr da Silva
- Department of Physical Education, Exercise Biochemistry Laboratory, Pará State University, Belém, Brazil
| | - Ana Pm Araújo
- Department of Physical Education, Exercise Biochemistry Laboratory, Pará State University, Belém, Brazil
| | - Evitom C de Sousa
- Department of Physical Education, Exercise Biochemistry Laboratory, Pará State University, Belém, Brazil.,Department of Physical Education, Resistance Exercise and Health Laboratory, Pará State University, Belém, Brazil
| | - Clebson P Pimentel
- Department of Physical Education, Exercise Biochemistry Laboratory, Pará State University, Belém, Brazil
| | - Erik A Cortinhas-Alves
- Department of Physical Education, Exercise Biochemistry Laboratory, Pará State University, Belém, Brazil.,Department of Physical Education, Resistance Exercise and Health Laboratory, Pará State University, Belém, Brazil
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Dose-Response Relationship of Weekly Resistance-Training Volume and Frequency on Muscular Adaptations in Trained Men. Int J Sports Physiol Perform 2019; 14:360-368. [DOI: 10.1123/ijspp.2018-0427] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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48
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Gerstner GR, Giuliani HK, Mota JA, Ryan ED. Influence of Muscle Quality on the Differences in Strength From Slow to Fast Velocities in Career Firefighters. J Strength Cond Res 2019; 32:2982-2986. [PMID: 29979280 DOI: 10.1519/jsc.0000000000002743] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Gerstner, GR, Giuliani, HK, Mota, JA, and Ryan, ED. Influence of muscle quality on the differences in strength from slow to fast velocities in career firefighters. J Strength Cond Res 32(10): 2982-2986, 2018-The purpose of this study was to examine the relationship between ultrasound-derived muscle quality and the %decrease in peak torque (PT) from slow to fast velocities in career firefighters. Thirty-nine male career firefighters (mean ± SD: age = 36.90 ± 6.87 years; stature = 180.93 ± 6.98 cm; mass = 109.30 ± 20.57 kg; and body mass index [BMI] = 33.24 ± 4.95 kg·m) performed 3 maximal concentric isokinetic contractions at a slow (1.05 rad·s) and fast (4.19 rad·s) velocity in random order. The velocity-related decrease in PT was calculated as the %decrease from 1.05 to 4.19 rad·s. Ultrasonography was used to determine subcutaneous fat corrected echo intensity (EI) to represent muscle quality before strength testing. The results indicated that there was a significant relationship between EI and %decrease in PT while adjusting for age (rpartial = 0.331, p = 0.042), and age and BMI (rpartial = 0.325, p = 0.050). These findings suggest that velocity-impaired isokinetic strength may be influenced by alterations in skeletal muscle tissue composition. Future studies are needed to determine whether the %decrease in PT is related to performance during critical firefighter tasks.
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Affiliation(s)
- Gena R Gerstner
- Neuromuscular Research Laboratory, Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,Human Movement Science Curriculum, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Hayden K Giuliani
- Neuromuscular Research Laboratory, Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Jacob A Mota
- Neuromuscular Research Laboratory, Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,Human Movement Science Curriculum, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Eric D Ryan
- Neuromuscular Research Laboratory, Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,Human Movement Science Curriculum, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,Department of Allied Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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Yoshiko A, Kaji T, Sugiyama H, Koike T, Oshida Y, Akima H. Twenty-Four Months' Resistance and Endurance Training Improves Muscle Size and Physical Functions but Not Muscle Quality in Older Adults Requiring Long-Term Care. J Nutr Health Aging 2019; 23:564-570. [PMID: 31233079 DOI: 10.1007/s12603-019-1208-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVES To assess the effects of 24 months training on muscle quality, size, strength, and gait abilities in older adults who need long-term care. DESIGN Non-randomized controlled trial Setting: Kawai Rehabilitation Center and Kajinoki Medical Clinic. PARTICIPANTS Ten older participants who needed long-term care (age, 76.7 ± 5.6 years) were participated as training group (Tr-group) and 10 older men and women who did not require long-term care (age, 72.9 ± 6.6 years) comprised the control group (Cont-group). INTERVENTION Tr-group performed resistive and endurance exercises once or twice a week for 24 months. MEASUREMENTS Using ultrasound images, echo intensity (EI) and muscle thickness were measured in the rectus femoris and biceps femoris as an index of muscle quality and size. Physical performance was measured before and after the training; performance parameters included knee extension peak torque, 5-m normal and maximal walk test, sit-to-stand and timed up and go test. RESULTS After the training, there was no change in EI, while BF thickness was increased (pre; 1.82 ± 0.29 cm, 24 months; 2.14 ± 0.23 cm, p < 0.05) in Tr-group. Walk-related performances were improved after the training in Tr-group (i.e. 5-m walk test and timed up and go test). The percent change of knee extension peak torque explained the percent change of EI in the rectus femoris (regression coefficient = 1.24, R = 0.91, adjusted R2 = 0.82, p < 0.001). CONCLUSIONS Twenty-four months' training induced muscle hypertrophy and improved physical functions. Increased muscle quality in the rectus femoris could be a key to improved knee extension peak torque, with the potential to eventually reduce the need for long-term care in older individuals.
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Affiliation(s)
- A Yoshiko
- Akito Yoshiko, Ph.D. School of International Liberal Studies, Chukyo University, 101 Tokodachi, Kaizu, Toyota, Aichi 470-0393, Japan, Tel: +81 (565) 46-6952, E-mail:
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Rinaldo MA, Jacinto JL, Pacagnelli FL, Shigaki L, Ribeiro AS, Balvedi MCW, Altimari LR, Silva DKD, Andrade WBD, Silva RAD, Aguiar AF. Effects of training volume on lower-body muscle strength in untrained young men: a contralateral control study. MOTRIZ: REVISTA DE EDUCACAO FISICA 2018. [DOI: 10.1590/s1980-657420180003e008318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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