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Buoite Stella A, Cargnel A, Raffini A, Mazzari L, Martini M, Ajčević M, Accardo A, Deodato M, Murena L. Shoulder Tensiomyography and Isometric Strength in Swimmers Before and After a Fatiguing Protocol. J Athl Train 2024; 59:738-744. [PMID: 38014804 PMCID: PMC11277270 DOI: 10.4085/1062-6050-0265.23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
CONTEXT Shoulder muscles are active during front-crawl swimming to provide propulsion and stabilize the glenohumeral and scapulothoracic joints. Researchers have proposed that fatigue might contribute to altered activation of these muscles and represent a risk factor for injuries. Tensiomyography (TMG) might function as a noninvasive tool to detect changes in contractile measures of the skeletal muscles due to exercise-induced neuromuscular fatigue, though it has not yet been used in the shoulder muscles of swimmers. OBJECTIVE To assess the effects of a fatiguing swimming protocol on shoulder muscle TMG measures and isometric strength in competitive swimmers. DESIGN Cross-sectional study. SETTING Swimming pool facility. PATIENTS OR OTHER PARTICIPANTS A total of 14 young front-crawl competitive swimmers (11 males and 3 females; age = 21 ± 3 years [range, 17-26 years], height = 1.78 ± 0.06 m, mass = 73.1 ± 9.2 kg). MAIN OUTCOME MEASURE(S) Participants completed TMG and isometric strength assessments before and after 30-minute, high-intensity swim training. The TMG assessment was performed on 7 muscles of the shoulder according to front-crawl biomechanics and the applicability of the technique to obtain data, such as time to contraction and muscle-belly radial displacement. Isometric strength was assessed using a digital handheld dynamometer during shoulder flexion, extension, external rotation, and internal rotation. RESULTS Fatigue induced a smaller radial displacement, mostly observable in latissimus dorsi (-1.0 mm; 95% CI = -1.7, -0.3 mm; P = .007) and pectoralis major muscles (-1.4 mm; 95% CI = -2.4, -0.4 mm; P = .007). Only shoulder extension showed an isometric strength reduction after the fatiguing protocol (-0.03 N/kg; 95% CI = -0.05, -0.01 N/kg; F1,13 = 4.936; P = .045; ηp2 = 0.275). CONCLUSIONS This study provides preliminary evidence for the usefulness of TMG to detect fatigue-induced changes in contractile properties of the shoulder muscles in swimmers, in particular the latissimus dorsi and pectoralis major.
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Affiliation(s)
- Alex Buoite Stella
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy
| | - Andrea Cargnel
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy
| | - Alessandra Raffini
- Department of Engineering and Architecture, University of Trieste, Italy
| | - Laura Mazzari
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy
| | - Miriam Martini
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy
| | - Miloš Ajčević
- Department of Engineering and Architecture, University of Trieste, Italy
| | - Agostino Accardo
- Department of Engineering and Architecture, University of Trieste, Italy
| | - Manuela Deodato
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy
| | - Luigi Murena
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy
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Piqueras-Sanchiz F, Martin-Rodriguez S, Cornejo-Daza PJ, Sánchez-Valdepeñas J, Serrano-Gómez V, Pareja-Blanco F, García-García Ó. Identification of Peripheral Fatigue through Exercise-Induced Changes in Muscle Contractility. J Hum Kinet 2024; 93:145-154. [PMID: 39132424 PMCID: PMC11307187 DOI: 10.5114/jhk/185297] [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: 11/05/2023] [Accepted: 02/23/2024] [Indexed: 08/13/2024] Open
Abstract
The aim of this study was to assess whether tensiomyography is a tool sensitive enough to detect peripheral fatigue. Twenty-six strength-trained men were split into two groups: 1) a fatigued group (FG), who performed a full-squat (SQ) standardized warm-up plus 3 x 8 SQs with 75% 1RM with a 5-min rest interval, and 2) a non-fatigued group (NFG), who only did the SQ standardized warm-up. The countermovement jump (CMJ), maximal isometric force (MIF) in the SQ at 90º knee flexion, and TMG in vastus medialis (VM) and vastus lateralis (VL) muscles were assessed pre- and post-protocols. Data were analyzed through mixed ANOVA, logistic regression analysis, and receiver-operating curves. There were significant group x time interactions (p < 0.01) for CMJ height, MIF, maximal radial displacement (Dm), and radial displacement velocity (Vrd90) since the FG acutely decreased in these variables, while no significant changes were observed for the NFG. The logistic regression showed a significant model for detecting fatigue, whether it used the CMJ or MIF, with only the relative change in VL-Vrd90 as a fatigue predictor. The determination of the area under the curve showed that Dm and Vrd90 had good to excellent discriminative ability. Dm and Vrd90 are sensitive to detect fatigue in VL and VM muscles in resistance training contexts.
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Affiliation(s)
- Francisco Piqueras-Sanchiz
- Department of Sports and Computers Sciences, Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Sevilla, Spain
| | - Saul Martin-Rodriguez
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Pedro J. Cornejo-Daza
- Department of Sports and Computers Sciences, Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Sevilla, Spain
| | - Juan Sánchez-Valdepeñas
- Department of Sports and Computers Sciences, Faculty of Sport Sciences, Universidad Pablo de Olavide, Sevilla, Spain
| | - Virginia Serrano-Gómez
- Sport Performance, Physical Condition and Wellness Lab. Faculty of Education and Sport Sciences, Universidad de Vigo, Pontevedra, Spain
| | - Fernando Pareja-Blanco
- Department of Sports and Computers Sciences, Faculty of Sport Sciences, Universidad Pablo de Olavide, Sevilla, Spain
| | - Óscar García-García
- Sport Performance, Physical Condition and Wellness Lab. Faculty of Education and Sport Sciences, Universidad de Vigo, Pontevedra, Spain
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Buoite Stella A, Dragonetti AM, Fontanot S, Sabot R, Martini M, Galmonte A, Canton G, Deodato M, Murena L. The Acute Effects of Cold Water Immersion and Percussive Massage Therapy on Neuromuscular Properties and Muscle Soreness after Exercise in Young Male Soccer Players. Sports (Basel) 2024; 12:167. [PMID: 38921861 PMCID: PMC11207944 DOI: 10.3390/sports12060167] [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: 05/14/2024] [Revised: 06/12/2024] [Accepted: 06/12/2024] [Indexed: 06/27/2024] Open
Abstract
Cold water immersion (CWI) and percussive massage therapy (PMT) are commonly used recovery techniques in team sports. In particular, despite its wide use, PMT has been scarcely investigated in the literature, especially regarding neuromuscular measures and in comparison with other techniques. This study aimed to evaluate and compare the acute and short-term effects (24 h) of CWI and PMT on muscle strength, contractile properties, and soreness after exercise. A randomized crossover study was performed on sixteen male soccer players (22 years, 20-27) who participated in three experimental sessions involving a fatiguing protocol consisting of a Yo-Yo Intermittent Endurance Test followed by 3 × 10 squat jumps and a wall sit for 30 s, and 12 min of recovery including CWI (10 °C water), bilateral PMT on the anterior and posterior thigh, or passive resting. Outcomes were assessed immediately after the exercise protocol, after the recovery intervention, and at 24 h. Isometric knee extension (IKE) and flexion (IKF) and tensiomyography (TMG) were assessed. Muscle soreness and fatigue were scored from 0 to 10. PMT increased strength after the treatment (p = 0.004) and at 24 h (p = 0.007), whereas no significant differences were found for the other two recovery modalities. At post-recovery, compared to CON, CWI resulted in a longer TMG contraction time (p = 0.027). No significant differences were found at 24 h. Finally, PMT and CWI enhanced muscle soreness recovery compared to passive rest (F4,60 = 3.095, p = 0.022, pη2 = 0.171). Preliminary results from this study suggest that PMT might improve isometric strength after strenuous exercise, and both PMT and CWI reduce muscle soreness perception, while the effects on TMG parameters remain controversial.
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Affiliation(s)
- Alex Buoite Stella
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy; (A.B.S.); (M.M.); (A.G.); (G.C.); (M.D.); (L.M.)
| | - Angelo Michele Dragonetti
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy; (A.B.S.); (M.M.); (A.G.); (G.C.); (M.D.); (L.M.)
| | - Simone Fontanot
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy; (A.B.S.); (M.M.); (A.G.); (G.C.); (M.D.); (L.M.)
| | - Raffaele Sabot
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy; (A.B.S.); (M.M.); (A.G.); (G.C.); (M.D.); (L.M.)
| | - Miriam Martini
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy; (A.B.S.); (M.M.); (A.G.); (G.C.); (M.D.); (L.M.)
- PhD Program in Personalized Medicine and Innovative Therapies, Department of Medicine, Surgery and Health Sciences, University of Trieste, 34100 Trieste, Italy
| | - Alessandra Galmonte
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy; (A.B.S.); (M.M.); (A.G.); (G.C.); (M.D.); (L.M.)
| | - Gianluca Canton
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy; (A.B.S.); (M.M.); (A.G.); (G.C.); (M.D.); (L.M.)
- Orthopedics and Traumatology Unit, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume 447, 34149 Trieste, Italy
| | - Manuela Deodato
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy; (A.B.S.); (M.M.); (A.G.); (G.C.); (M.D.); (L.M.)
| | - Luigi Murena
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy; (A.B.S.); (M.M.); (A.G.); (G.C.); (M.D.); (L.M.)
- PhD Program in Personalized Medicine and Innovative Therapies, Department of Medicine, Surgery and Health Sciences, University of Trieste, 34100 Trieste, Italy
- Orthopedics and Traumatology Unit, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume 447, 34149 Trieste, Italy
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Deodato M, Saponaro S, Šimunič B, Martini M, Murena L, Buoite Stella A. Trunk muscles' characteristics in adolescent gymnasts with low back pain: a pilot study on the effects of a physiotherapy intervention including a postural reeducation program. J Man Manip Ther 2024; 32:310-324. [PMID: 37649443 PMCID: PMC11216269 DOI: 10.1080/10669817.2023.2252202] [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: 01/11/2023] [Accepted: 08/20/2023] [Indexed: 09/01/2023] Open
Abstract
BACKGROUND Trunk muscles' function and characteristics are of great importance for both static and dynamic tasks in different sports, and abnormalities of trunk flexors and extensors might be associated with low back pain (LBP). The aim of this study was to provide a comprehensive evaluation of the functional, morphological and contractile properties in trunk flexors and extensors of young gymnasts with and without LBP. METHODS Young gymnasts (14/25 females, 14-18 y) were screened for the presence of chronic LBP. Abdominal and lumbar muscles were tested for function (McGill's endurance tests), thickness (ultrasound), and contractile responses (tensiomyography). An 8-sessions physiotherapy intervention including postural reeducation was performed by a subsample of 10 subjects with LBP. RESULTS LBP was found to be associated to higher flexors-to-extensors endurance ratio (OR 11.250, 95% CI: 1.647-76.849, p = 0.014), reduced mean lumbar multifidus thickness (OR 16.500, 95% CI: 2.246-121.228, p = 0.006), and reduced mean erector spinae radial displacement (OR 16.500, 95% CI: 2.246-121.228, p = 0.006). The physiotherapy intervention was found to reduce LBP symptoms and it was associated with a significant improvement in the flexors-to-extensors ratio (p < 0.001). CONCLUSIONS This study provides preliminary evidence of functional, morphological, and contractile trunk muscles' alterations associated with chronic LBP in young gymnasts, and presents the effects of a postural reeducation program on symptoms and muscles' functional properties.
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Affiliation(s)
- Manuela Deodato
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
- PhD Program in Neural and Cognitive Sciences, Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Serena Saponaro
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Boštjan Šimunič
- Institute for Kinesiology Research, Science and Research Center of Koper, Koper, Slovenia
| | - Miriam Martini
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Luigi Murena
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
- Orthopaedics and Traumatology Unit, Cattinara Hospital - ASUGI, Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Alex Buoite Stella
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
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Pakosz P, Konieczny M, Domaszewski P, Dybek T, Gnoiński M, Skorupska E. Changes in hamstring contractile properties during the competitive season in young football players. PeerJ 2024; 12:e17049. [PMID: 38510545 PMCID: PMC10954257 DOI: 10.7717/peerj.17049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 02/13/2024] [Indexed: 03/22/2024] Open
Abstract
Background The study aimed to examine alterations and imbalances in hamstring muscle contractile properties among young football players throughout their competitive season, and to understand how these changes might contribute to the risk of muscle injuries. Hamstring injuries are particularly common in football, yet the underlying causes and effective prevention methods remain unclear. Methods The research involved 74 young footballers who were assessed before the season (pre-test) and after 12 weeks of training (post-test). To evaluate changes in hamstring muscle contractile properties, specifically the left and right biceps femoris (BF) and semitendinosus (ST), tensiomyography (TMG) parameters were utilized. Results In comparison to the BF muscle, significant differences in time delay (Td) between the left and right sides in the post-test (p = 0.0193), and maximal displacement (Dm) between the left and right sides at the pre-test (p = 0.0395). However, significant differences in Dm were observed only in the left ST muscle between the pre- and post-tests (p = 0.0081). Regarding lateral symmetry, BF registered measurements of 79.7 ± 13.43 (pre-test) and 77.4 ± 14.82 (post-test), whereas ST showed measurements of 87.0 ± 9.79 (pre-test) and 87.5 ± 9.60 (post-test). Conclusions These assessments provided TMG reference data for hamstring muscles in young footballers, both before the season and after 12 weeks of in-season training. The observed changes in the contractile properties and decrease in lateral symmetry of the BF in both tests suggest an increased risk of injury.
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Affiliation(s)
- Paweł Pakosz
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Opole, Poland
| | - Mariusz Konieczny
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Opole, Poland
| | - Przemysław Domaszewski
- Department of Health Sciences, Institute of Health Sciences, University of Opole, Opole, Poland
| | - Tomasz Dybek
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Opole, Poland
| | | | - Elżbieta Skorupska
- Department of Physiotherapy, Poznan University of Medical Sciences, Poznań, Poland
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Dakić M, Ilić V, Toskić L, Duric S, Šimenko J, Marković M, Dopsaj M, Cuk I. Acute Effects of Short-Term Massage Procedures on Neuromechanical Contractile Properties of Rectus Femoris Muscle. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:125. [PMID: 38256386 PMCID: PMC10820668 DOI: 10.3390/medicina60010125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024]
Abstract
Background and Objectives: In many sports, maintaining muscle work at an optimal level despite fatigue is crucial. Therefore, it is essential to discover the most efficient way of recovery. This study aimed to evaluate and compare the acute effects of four different recovery methods on muscle neuromechanical properties. Materials and Methods: The research was conducted using a randomized, quasi-experimental, repeated-measures design. Fourteen healthy and active male students of the Faculty of Sport and Physical Education (age 25.1 ± 3.9 years) were included in this study. The tensiomyography was used to evaluate muscle responses after four different types of short-term recovery methods (passive rest, percussive mechanical, vibro-mechanical, and manual massage) on the rectus femoris muscle on four occasions: baseline, post fatigue, post recovery and prolonged recovery. Results: The ANOVA revealed that muscle fatigue decreased maximal vertical muscle displacement (Dm) and muscle contraction time (Tc) in post fatigue compared to the baseline. The most important finding shows that only the vibro-mechanical massage resulted in an increase in Tc in the prolonged recovery compared to the post fatigue (p = 0.028), whereas only manual massage showed no differences in Dm from the baseline in post-recovery (p = 0.148). Moreover, both manual and vibro-mechanical massages increased Dm and Tc in prolonged recovery, indicating no differences from the baseline (all p > 0.05), thus showing signs of muscle recovery. Percussion mechanical massage and passive rest did not show indices of muscle recovery. Conclusions: Manual massage could induce immediate positive changes in Dm by reducing muscle stiffness. In addition, vibro-mechanical and manual massage improved muscle tissue by rapidly returning Dm and Tc values to baseline at prolonged recovery measurement (5 min after the fatigue protocol). These findings can benefit sports practitioners, and physical therapists in developing the best recovery method after muscle fatigue.
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Affiliation(s)
- Miloš Dakić
- Faculty of Sport and Physical Education, University of Belgrade, 11000 Belgrade, Serbia; (M.D.); (V.I.); (M.D.)
| | - Vladimir Ilić
- Faculty of Sport and Physical Education, University of Belgrade, 11000 Belgrade, Serbia; (M.D.); (V.I.); (M.D.)
| | - Lazar Toskić
- Faculty of Sport and Physical Education, University of Priština in Kosovska Mitrovica, 38218 Leposavić, Serbia; (L.T.); (M.M.)
- Faculty of Sport, University “Union–Nikola Tesla”, 11070 Belgrade, Serbia
| | - Sasa Duric
- Liberal Arts Department, American University of the Middle East, Egaila 54200, Kuwait;
| | - Jožef Šimenko
- Faculty of Sport, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Milan Marković
- Faculty of Sport and Physical Education, University of Priština in Kosovska Mitrovica, 38218 Leposavić, Serbia; (L.T.); (M.M.)
| | - Milivoj Dopsaj
- Faculty of Sport and Physical Education, University of Belgrade, 11000 Belgrade, Serbia; (M.D.); (V.I.); (M.D.)
| | - Ivan Cuk
- Faculty of Sport and Physical Education, University of Belgrade, 11000 Belgrade, Serbia; (M.D.); (V.I.); (M.D.)
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Szurmik T, Ogrodzka-Ciechanowicz K, Kurzeja P, Gąsienica-Walczak B, Prusak J, Bibrowicz K. Assessment of the functional state of the back muscles in girls with C-shaped low-grade scoliosis in a tensiomyographic image: An observational cross-sectional study. PLoS One 2023; 18:e0292555. [PMID: 37847728 PMCID: PMC10581459 DOI: 10.1371/journal.pone.0292555] [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: 05/18/2023] [Accepted: 09/22/2023] [Indexed: 10/19/2023] Open
Abstract
PURPOSE The study aimed to test the feasibility of using tensiomyography to assess the functional status of the latissimus dorsi and erector spinae muscles in girls with C-shaped low back scoliosis. MATERIALS AND METHODS Twenty-five girls aged 13-15 took part in an observational (cross-sectional) study. The examination involved measurements using the tensiomyography method (TMG). Two groups of muscles were tested: latissimus dorsi and erector spinae on the concave and convex side of low-grade scoliosis. The following indicators were analyzed: Td-delay time, Tc-contraction time, and Dm-maximal muscle displacement. RESULTS The analysis of Td revealed that values of this variable on the concave side were slightly lower compared to the convex side in both tested groups of muscles. Similarly, Tc values on the concave side were slightly lower than on the convex side of the curvature in both groups of muscles. In the case of Dm, lower displacement values and, consequently, greater muscle rigidity were observed on the concave side of the latissimus dorsi and the convex side of the erector spinae. CONCLUSIONS The TMG method can be potentially used to diagnose the functional condition of muscles in patients with low-grade scoliosis. There were differences between the functional condition of the muscles on the concave and convex sides of the curvature.
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Affiliation(s)
- Tomasz Szurmik
- Faculty of Arts and Educational Science, University of Silesia, Cieszyn, Poland
| | | | - Piotr Kurzeja
- Institute of Health Sciences, Podhale State College of Applied Sciences, Nowy Targ, Poland
| | | | - Jarosław Prusak
- Institute of Health Sciences, Podhale State College of Applied Sciences, Nowy Targ, Poland
| | - Karol Bibrowicz
- Science and Research Center of Body Posture, Kazimiera Milanowska College of Education and Therapy, Poznań, Poland
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Mesquita RNO, Latella C, Ruas CV, Nosaka K, Taylor JL. Contraction Velocity of the Elbow Flexors Assessed by Tensiomyography: A Comparison Between Formulas. J Strength Cond Res 2023; 37:1969-1977. [PMID: 36946988 DOI: 10.1519/jsc.0000000000004495] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 12/15/2022] [Indexed: 03/23/2023]
Abstract
ABSTRACT Mesquita, RNO, Latella, C, Ruas, CV, Nosaka, K, and Taylor, JL. Contraction velocity of the elbow flexors assessed by tensiomyography: A comparison between formulas. J Strength Cond Res 37(10): 1969-1977, 2023-Muscle contraction velocity ( Vc ) assessed by tensiomyography is a promising measure for athlete profiling. Multiple formulas are used to estimate Vc , but the most suitable method is yet to be established. Fifteen adults (2 female subjects) underwent tensiomyography assessment of biceps brachii muscle at 10, 45 and 90° of elbow flexion on 2 separate days. Vc was calculated using 6 formulas. Formulas 1 and 2 are measures of the early phase of the twitch; Formulas 3-5 are measures over a wider time-window, with Formula 5 normalizing Vc to maximal displacement ( D m); and we proposed Formula 6 as a measure of peak Vc . Test-retest reliability, the required minimum number of trials, proportional bias, and effects of joint angle were investigated. Higher reliability (coefficient of variation: 2.8-6.9%) was found for Formula 1 (0-2 mm of displacement) and Formula 5 (normalized 10-90% of D m). Overall, a minimum of 6-7 trials was required to obtain reliable estimates. For 10° only, significant positive proportional bias ( r = 0.563-0.670) was found for all formulas except Formula 5. Vc was faster ( p < 0.001) at shorter muscle lengths for all formulas except Formula 5 ( p = 0.06). Vc in the early phase of the twitch was more reliable when calculated using absolute displacement (Formula 1) than a relative threshold (Formula 2). Over a larger time-window, Formulas 3 and 4 were similarly reliable. Because they are derived from different components of the twitch and different parameters, the different formulas should not be used interchangeably. Additionally, more precise nomenclature is required to describe the information obtained from each formula.
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Affiliation(s)
- Ricardo N O Mesquita
- Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden
- School of Medical and Health Sciences, Centre for Human Performance, Edith Cowan University, Perth, Australia
- Neuroscience Research Australia, Sydney, Australia; and
| | - Christopher Latella
- School of Medical and Health Sciences, Centre for Human Performance, Edith Cowan University, Perth, Australia
| | - Cassio V Ruas
- School of Medical and Health Sciences, Centre for Human Performance, Edith Cowan University, Perth, Australia
- Brazilian Institute of Neuroscience and Neurotechnology-Institute of Physics Gleb Wataghin, University of Campinas, São Paulo, Brazil
| | - Kazunori Nosaka
- School of Medical and Health Sciences, Centre for Human Performance, Edith Cowan University, Perth, Australia
| | - Janet L Taylor
- School of Medical and Health Sciences, Centre for Human Performance, Edith Cowan University, Perth, Australia
- Neuroscience Research Australia, Sydney, Australia; and
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Cuba-Dorado A, Álvarez-Yates T, Carballo-López J, Iglesias-Caamaño M, Fernández-Redondo D, García-García O. Neuromuscular changes after a Long Distance Triathlon World Championship. Eur J Sport Sci 2023; 23:1838-1848. [PMID: 36221960 DOI: 10.1080/17461391.2022.2134053] [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] [Indexed: 11/03/2022]
Abstract
ABSTRACTThis study aimed to determine the neuromuscular changes in muscle contractile properties and countermovement jump (CMJ) performance after a long distance (LD) triathlon, inquiring to what extent it is influenced by gender and the evaluated muscle, and to explore for response differences. Four elite (2 females and 2 males) and 18 well-trained triathletes (3 females and 15 males) who competed in the 2019 LD Triathlon World Championship undergone, prior and post-race, a CMJ and a muscle contractile properties assessment in vastus lateralis (VL) and biceps femoris (BF) using tensiomyography. A mixed ANOVA was carried out to detect triathletes' neuromuscular changes after the competition. A large decrease in jump height and flight time was found in CMJ (p = 0.001, ηp2 = 0.767) with gender differences (ηp2 = 0.308). contraction (Tc), delay (Td) and sustain times (Ts) also showed a large decrease (p = 0.001, ηp2 = 0.174-0.413). However, maximum radial muscle belly displacement was not altered by the competition, but did greatly increase radial displacement velocity (p = 0.031; ηp2 = 0.212). No gender differences were found in contractile properties. Correlation analysis between race performance and the jumping and tensiomyography parameters only showed a moderate negative correlation with Tc of the BF in pre- and post-competition (r = -0.44; -0.43; p = 0.05). In conclusion, triathletes after a LD World Championship suffer a sharp drop in jump performance and variations in VL's and BF's contractile properties, showing decreases in Tc, Td and Ts without gender differences. The regular use of these parameters can allow the monitoring of triathlete's neuromuscular fatigue and aid in the distribution of more efficient loads in their training cycles.HighlightsTrainers and researchers in neuromuscular fatigue can have reference data of elite and well-trained triathletes after performing LD race.The magnitude of change in the CMJ and the contractile properties of BF and VL achieved in competition by these elite reference triathletes can guide to modulate triathletes training.The regular use of the parameters using these references can allow an exhaustive neuromuscular fatigue monitoring during the sessions or training cycles throughout the season.
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Affiliation(s)
- Alba Cuba-Dorado
- Laboratory of Sports Performance, Physical Condition and Wellness, Faculty of Education and Sport Sciences, University of Vigo, Pontevedra, Spain
| | - Tania Álvarez-Yates
- Laboratory of Sports Performance, Physical Condition and Wellness, Faculty of Education and Sport Sciences, University of Vigo, Pontevedra, Spain
| | - Javier Carballo-López
- Laboratory of Sports Performance, Physical Condition and Wellness, Faculty of Education and Sport Sciences, University of Vigo, Pontevedra, Spain
| | - Mario Iglesias-Caamaño
- Laboratory of Sports Performance, Physical Condition and Wellness, Faculty of Education and Sport Sciences, University of Vigo, Pontevedra, Spain
| | | | - Oscar García-García
- Laboratory of Sports Performance, Physical Condition and Wellness, Faculty of Education and Sport Sciences, University of Vigo, Pontevedra, Spain
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Padrón-Cabo A, Corredoira FJ, Lorenzo-Martínez M, González-Víllora S, Rey E. Tensiomyographic Assessment of Contractile Properties in Elite Youth Soccer Players According to Maturity Status. J Hum Kinet 2023; 87:71-80. [PMID: 37229402 PMCID: PMC10203836 DOI: 10.5114/jhk/161571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 10/30/2022] [Indexed: 05/27/2023] Open
Abstract
Little is known about how muscle contractile properties are affected by biological maturation in elite youth soccer players. This study aimed to determine the effects of maturation on contractile properties of rectus femoris (RF) and biceps femoris (BF) muscles assessed by tensiomyography (TMG) and provide reference values for elite youth soccer players. One hundred twenty-one elite youth soccer players (14.98 ± 1.83 years; 167.38 ± 10.37 cm; 60.65 ± 11.69 kg) took part in the study. The predicted peak height velocity (PHV) was used in order to establish players' maturity status (Pre-PHV, n = 18; Mid-PHV, n = 37; Post-PHV = 66). Maximal radial displacement of the muscle belly, contraction time, delay time, and contraction velocity for RF and BF muscles were recorded. One-way ANOVA showed no significant differences between PHV groups for any tensiomyography variables in RF and BF muscles (p > 0.05). Our results established that maturity status did not show a significant effect in mechanical and contractile properties on RF and BF muscles evaluated by TMG in elite youth soccer players. These findings and reference values can be useful for strength and conditioning coaches of elite soccer academies in order to optimize the evaluation of neuromuscular profiles.
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Affiliation(s)
- Alexis Padrón-Cabo
- Department of Physical and Sports Education, Faculty of Sport Sciences and Physical Education, University of A Coruña, A Coruña, Spain
| | | | | | - Sixto González-Víllora
- Department of Physical Education, Arts Education, and Music, Faculty of Education, University of Castilla-La Mancha, Albacete, Spain
| | - Ezequiel Rey
- Faculty of Education and Sport Sciences, University of Vigo, Pontevedra, Spain
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Kusumoto Y, Goto H, Chiba K, Oonishi S, Tsuchiya J. Characteristics of muscle contraction of the rectus femoris using tensiomyography by sex in healthy college students: a cross-sectional study. PeerJ 2023; 11:e14732. [PMID: 36655037 PMCID: PMC9841898 DOI: 10.7717/peerj.14732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 12/20/2022] [Indexed: 01/15/2023] Open
Abstract
Background Tensiomyography (TMG) is a non-invasive instrument for measuring mechanical muscle contraction characteristics and measuring the maximum displacement of the muscle belly in the radial direction with respect to the muscle and the time needed to achieve this from electrical stimulation. There have been only been a reports of TMG in healthy adults. A systematic review of TMG reported a low proportion of female participants, with a small sample size. Therefore, it is unclear whether there is a difference in TMG parameters according to sex and between dominant and non-dominant feet. Furthermore, the relationship between TMG parameters and evaluations commonly used in clinical practice has not been clarified. This study aimed to clarify the characteristics of muscle contraction of the rectus femoris using TMG according to sex among healthy college students and its relationship with muscle function evaluation, such as lower limb muscle mass and muscle strength. Methods This cross-sectional study included 91 healthy university students (18-24 years). Five tools were used: TMG, lower-limb muscle mass, rectus femoris thickness, isometric knee joint extension torque, and thigh circumference. Each parameter was compared by the generalized linear mixed model (GLMM) and Bonferroni's multiple comparison test, with sex as the without-subject factor and dominant/non-dominant foot as the within-subject factor. The correlation between the TMG parameters and other parameters was examined using Pearson's correlation coefficient for both males and females. Results The results of the GLMM, in terms of the TMG parameters, an interaction was observed for maximum displacement (Dm); in the results of the multiple comparison test, Dm for the non-dominant leg was significantly lower in females than in males. A main effect and interaction were not observed for delay time (Td) and contraction time (Tc) by sex, dominant foot, or non-dominant foot. There was a main effect of sex on muscle function evaluation parameters (ρ ≤ 0.05). The correlation between TMG parameters for males and females and lower limb muscle mass, muscle thickness, joint torque, and thigh circumference were significantly correlated with some TMG parameters, lower limb muscle mass and muscle thickness (ρ ≤ 0.05). The absolute value of the correlation coefficient was low overall (0.20-0.38). Conclusion In healthy college students, TMG parameters for the rectus femoris showed sex differences in Dm, and there was a weak correlation between TMG parameters and lower limb muscle mass. TMG parameter evaluation may indicate a different function compared to the traditional muscle function assessment used in clinical practice. When using the Dm of the TMG as an evaluation battery for the rectus femoris muscle, it is important to consider sex-related differences.
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Affiliation(s)
- Yasuaki Kusumoto
- Department of Physical Therapy, Fukushima Medical University School of Health Sciences, Fukushima city, Fukushima, Japan
| | | | - Kohei Chiba
- Department of Rehabilitation, Japanese Red Cross Medical Center, Shibuya-ku, Tokyo, Japan
| | - Sakiko Oonishi
- Major of Physical Therapy, Department of Rehabilitation, Tokyo University of Technology, Ohta-ku, Tokyo, Japan
| | - Junko Tsuchiya
- Major of Physical Therapy, Department of Rehabilitation, Tokyo University of Technology, Ohta-ku, Tokyo, Japan
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Muñoz-Pérez I, Varela-Sanz A, Lago-Fuentes C, Navarro-Patón R, Mecías-Calvo M. Central and Peripheral Fatigue in Recreational Trail Runners: A Pilot Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:402. [PMID: 36612727 PMCID: PMC9819577 DOI: 10.3390/ijerph20010402] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/09/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Understanding fatigue mechanisms is crucial for exercise performance. However, scientific evidence on non-invasive methods for assessing fatigue in trail running competitions is scarce, especially when vertical kilometer trail running races (VK) are considered. The main purpose of this study was to assess the autonomic nervous system (ANS) activity (i.e., central fatigue) and the state of muscle activation (i.e., peripheral fatigue) before and after a VK competition. METHODS A cross-sectional pilot study was performed. After applying inclusion/exclusion criteria, 8 recreational male trail runners (31.63 ± 7.21 yrs, 1.75 m ± 0.05 m, 70.38 ± 5.41 kg, BMI: 22.88 ± 0.48, running experience: 8.0 ± 3.63 yrs, weekly training volume: 58.75 ± 10.35 km) volunteered to participate and were assessed for both central (i.e., via heart rate variability, HRV) and peripheral (via tensiomyography, TMG) fatigue before and after a VK race. RESULTS After the VK, resting heart rate, RMSSD (p = 0.01 for both) and SDNN significantly decreased (p = 0.02), while the stress score and the sympathetic-parasympathetic ratio increased (p = 0.01 and p = 0.02, respectively). The TMG analyses suggest that runners already suffered peripheral fatigue before the VK and that 20-30 min are enough for muscular recovery after the race. In summary, our data suggest that participants experienced a pre-competition fatigue status. Further longitudinal studies are necessary to investigate the mechanisms underlying fatigue during trail running races, while training periodization and tapering strategies could play a key role for minimizing pre-competition fatigue status.
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Affiliation(s)
- Iker Muñoz-Pérez
- Facultad de Ciencias de la Educación y Deporte, Universidad de Deusto, 48007 Bilbao, Spain
| | - Adrián Varela-Sanz
- Physical and Sports Education Department, Faculty of Sport Sciences and Physical Education, University of A Coruna, 15179 A Coruna, Spain
| | - Carlos Lago-Fuentes
- Facultad de Ciencias de la Salud, Universidad Europea del Atlántico, 39011 Santander, Spain
| | - Rubén Navarro-Patón
- Facultad de Formación del Profesorado, Universidade de Santiago de Compostela, 27001 Lugo, Spain
| | - Marcos Mecías-Calvo
- Facultad de Formación del Profesorado, Universidade de Santiago de Compostela, 27001 Lugo, Spain
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13
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Langen G, Sandau I, Ueberschär O, Nosaka K, Behringer M. Methodical approaches to determine the rate of radial muscle displacement using tensiomyography: A scoping review and new reporting guideline. J Electromyogr Kinesiol 2022; 67:102702. [PMID: 36183503 DOI: 10.1016/j.jelekin.2022.102702] [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: 02/07/2022] [Revised: 07/30/2022] [Accepted: 08/31/2022] [Indexed: 12/14/2022] Open
Abstract
Tensiomyography is a non-invasive method to assess skeletal muscle contractile properties from the stimulated radial displacement. Many studies have used the rate of displacement (Vc) as an indirect measure of muscle contraction velocity. However, no standardised methodical approach exists to measure displacement and determine Vc. This review aimed to provide an overview of concepts to determine Vc and measurement protocols to foster the development of a standardised methodical approach. This review followed the Preferred Reporting Items for Systematic Reviews and meta-Analyses extension for Scoping Reviews (PRISMA-ScR) guideline. Systematic searches were performed within five electronic databases and additional sources. The included 62 studies reported 10 different concepts to determine Vc, which we summarised in three groups. The determination concepts differed mainly regarding time intervals during the contraction phase considered and criteria used to define these intervals. Essential information on the equipment and raters, measurement setup, electrical stimulation procedure, and data analysis were frequently not reported. In conclusion, no consensus on how to determine Vc existed. Incomplete reporting of measurement protocols hindered study comparison, which obstructs developing a standardised approach. Therefore, we propose a new guideline for reporting measurement protocols, which covers the 1) equipment and rater, 2) measurement setup, including positioning of the subject, sensor and electrodes, 3) electrical stimulation, including initial stimulation amplitude, increment, and endpoint, and 4) data analysis, including selection criteria and number of analysed signals and a definition of derived parameters.
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Affiliation(s)
- G Langen
- Department of Sports Medicine and Performance Physiology, Goethe University Frankfurt, Frankfurt, Germany; Department of Strength Power and Technical Sports, Institute for Applied Training Science, Leipzig, Germany.
| | - I Sandau
- Department of Strength Power and Technical Sports, Institute for Applied Training Science, Leipzig, Germany
| | - O Ueberschär
- Department of Engineering and Industrial Design, Magdeburg-Stendal University of Applied Sciences, Magdeburg, Germany; Department of Biomechanics, Institute for Applied Training Science, Leipzig, Germany
| | - K Nosaka
- Centre for Human Performance, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - M Behringer
- Department of Sports Medicine and Performance Physiology, Goethe University Frankfurt, Frankfurt, Germany
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Buoite Stella A, Galimi A, Martini M, Di Lenarda L, Murena L, Deodato M. Muscle Asymmetries in the Lower Limbs of Male Soccer Players: Preliminary Findings on the Association between Countermovement Jump and Tensiomyography. Sports (Basel) 2022; 10:177. [PMID: 36422945 PMCID: PMC9694285 DOI: 10.3390/sports10110177] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/08/2022] [Accepted: 11/11/2022] [Indexed: 09/01/2023] Open
Abstract
Strength and power asymmetries have been observed in different sports, including soccer. Such asymmetries, as well as the bilateral deficit (BLD), can be assessed during different tasks, static or dynamic, and with different methods and devices, in order to detect the possible different aspects, as well as the association with physical performance and injuries. The aim of this study was to investigate the association between muscle asymmetries and BLD during a countermovement jump (CMJ), and tensiomyography (TMG) parameters and asymmetries, in the lower limbs of male soccer players. A total of 23 male soccer players (18 ± 4 years) were recruited. Bilateral and unilateral CMJs were performed, and peak power (W) and height (cm) were obtained. TMG was performed on different muscles of the lower limbs, and lateral and functional symmetries were obtained. Playing position and history of injuries were collected. CMJ inter-limb symmetry was found to significantly correlate with biceps femoris (r = 0.574, p = 0.004) and soleus (r = 0.437, p = 0.037) lateral symmetry. Players in central roles presented significantly worse functional symmetry scores of the knee than defense players (-17.5%, 95% CI -31.2--3.9; p = 0.10). Participants reporting a history of injury at the ankle were characterized by significantly lower functional symmetry in both the dominant (43%, 39.5-48.0 vs. 74.5%, 46.5-89.3, p = 0.019) and non-dominant (45%, 42.5-46.0 vs. 81.0%, 45.8-90.3, p = 0.024) ankle. Findings from this preliminary study suggest an association between lower-limb muscle asymmetries during a dynamic task, such as jumping, and muscle contractile properties evaluated with TMG; moreover, functional asymmetries may be present after ankle injuries. Future studies in larger samples should evaluate the presence of such asymmetries as predictors or characteristics of different muscular and joint injuries.
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Affiliation(s)
- Alex Buoite Stella
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy
- Clinical, Integrative and Translational Physiology, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume 447, 34149 Trieste, Italy
| | - Annalisa Galimi
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy
| | - Miriam Martini
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy
| | - Luca Di Lenarda
- Orthopaedics and Traumatology Unit, Cattinara Hospital-ASUGI, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume 447, 34149 Trieste, Italy
| | - Luigi Murena
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy
- Orthopaedics and Traumatology Unit, Cattinara Hospital-ASUGI, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume 447, 34149 Trieste, Italy
| | - Manuela Deodato
- School of Physiotherapy, Department of Medicine, Surgery and Health Sciences, University of Trieste, Via Pascoli 31, 34100 Trieste, Italy
- Ph.D. Program in Neural and Cognitive Sciences, Department of Life Sciences, University of Trieste, Via Weiss 2, 34100 Trieste, Italy
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15
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Differences in the Contractile Properties of the Biceps Femoris and Semitendinosus Muscles Throughout a Season in Professional Soccer Players. J Hum Kinet 2022; 84:74-81. [DOI: 10.2478/hukin-2022-0088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Abstract
The aim of this study was to monitor seasonal changes in the mechanical and neuromuscular characteristics of the knee flexor muscles with tensiomyography, the biceps femoris (BF) and semitendinosus (ST) muscles, of 27 soccer players. All male professional soccer players (age 25 ± 4 years) were measured at the beginning of the preseason (second week) and in the competitive season (10 weeks later). The variables contraction time (Tc) and muscle displacement (Dm) showed significant differences in some muscles, and in others they indicated a tendency to change. In general, the BF improved (more explosive and better muscle tone) and the ST worsened (slower and worse muscle tone) its values during the season. The findings of this study suggest that usual daily soccer training and weekly competition might produce antagonistic changes between the knee flexor muscles.
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Jo SH, Choi HJ, Cho HS, Yoon JH, Lee WY. Effect of Core Balance Training on Muscle Tone and Balance Ability in Adult Men and Women. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12190. [PMID: 36231489 PMCID: PMC9564429 DOI: 10.3390/ijerph191912190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/15/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
(1) Background: The amount of physical activity most adults perform is less than the recommended amount, and the resulting decrease in physical strength makes them vulnerable to various diseases. A decrease in muscle size and strength due to damage caused by disease or aging negatively affects functional strength. Muscle evaluation in adults can yield results that are predictive indicators of aging and unexpected disability. In addition, balance ability is essential to prevent falls and injuries in daily life and maintain functional activities. It is important to develop and strengthen balance in the lower extremities and core muscles to maintain and enhance overall body balance. This study aimed to analyze the effects of core balance training on muscle tone and balance ability in adults. (2) Methods: The participants of this study were 32 adult male and female university students (male: mean age = 21.3 ± 1.9 years, weight = 74.2 ± 12.6 kg, BMI = 23.4 + 2.5, n = 14; female: mean age = 21.0 ± 1.4 years, weight = 64.6 + 1.2 kg, BMI = 22.4 ± 2.4, n =18). Thirty-two adults (training group: 16, control group: 16; male: 16, female: 16) participated in the Myoton PRO (gastrocnemius lateral/medial, tibialis anterior), Pedalo balance system, and Y-balance test. (3) Results: The following results were obtained for muscle elasticity, stiffness, and dynamic/static balance ability after 10 weeks of core balance training. 1. There was no significant difference in muscle elasticity (gastrocnemius lateral/medial, tibialis anterior) (p < 0.05). 2. Muscle stiffness (gastrocnemius lateral/medial, tibialis anterior) significantly increased (p < 0.05). 3. Dynamic/static balance ability significantly increased (p < 0.05). (4) Conclusions: In future, data for the age and sex of various participants, should be accumulated by recruiting participants to study muscle characteristics, such as muscle elasticity and stiffness. Estimating the appropriate injury range and optimal exercise capacity is possible through follow-up studies. The findings can then be used as a basis for predicting injuries or determining and confirming the best time to resume exercise.
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Affiliation(s)
- Sun-Ha Jo
- Department of Advanced industry Convergence, Chosun University, Gwangju 61452, Korea
| | - Hyuk-Jae Choi
- Department of Medical Convergence Research & Development, Rehabilitation Engineering Research Institute, Korea Workers’ Compensation & Welfare Service, Incheon 21419, Korea
| | - Hyeon-Seok Cho
- Department of Medical Convergence Research & Development, Rehabilitation Engineering Research Institute, Korea Workers’ Compensation & Welfare Service, Incheon 21419, Korea
| | - Jin-Hwan Yoon
- Institute of Sports Medicine, Hannam University, Daejeon 34430, Korea
| | - Won-Young Lee
- Institute of Sports Medicine, Hannam University, Daejeon 34430, Korea
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17
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Willberg C, Wieland B, Rettenmaier L, Behringer M, Zentgraf K. The relationship between external and internal load parameters in 3 × 3 basketball tournaments. BMC Sports Sci Med Rehabil 2022; 14:152. [PMID: 35922869 PMCID: PMC9351101 DOI: 10.1186/s13102-022-00530-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 07/13/2022] [Indexed: 11/22/2022]
Abstract
Purpose 3 × 3 basketball games are characterized by high-intensity accelerations and decelerations, and a high number of changes of direction and jumps. It is played in tournament form with multiple games per day. Therefore, optimal regeneration is crucial for maintaining a high performance level over the course of the tournament. To elucidate how load of a match affects the athletes' bodies (i.e., internal load), muscular responses to the load of 3 × 3 games were analyzed. We aimed to investigate changes in contractility of the m. rectus femoris (RF) and m. gastrocnemius medialis (GC) in response to the load of single 3 × 3 games and a 3 × 3 tournament. Methods Inertial movement analysis was conducted to capture game load in 3 × 3. Changes in contractility were measured using tensiomyography (TMG). During a two-day tournament, TMG measurements were conducted in the morning and after each game. Additionally, off-game performance analysis consisting of jump and change-of-direction (COD) tests was conducted the day before the tournament. Results Significant changes of the muscle contractility were found for GC with TMG values being higher in the baseline than in the post-game measurements. In contrast to athletes of the GC group, athletes of the RF group responded with either decreased or increased muscle contractility after a single 3 × 3 game. A significant correlation between external and internal load parameters could not be shown. Concerning off-game performance, significant correlations can be reported for COD test duration, CMJ height and ∆Vc as well as COD test duration and ∆Dm. No systematic changes in muscle contractility were found over the course of the tournament in RF and GC. Conclusion The athletes' external 3 × 3 game load and their performance level did not seem to affect muscular contractility after a single 3 × 3 game or a complete 3 × 3 tournament within this investigation. This might indicate that elite athletes can resist external load without relevant local muscular fatigue. With respect to the course of the tournament, it can therefore be concluded that the breaks between games seem to be sufficient to return to the initial level of muscle contractility. Supplementary Information The online version contains supplementary material available at 10.1186/s13102-022-00530-1.
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Affiliation(s)
- C Willberg
- Institute of Sport Sciences, Movement Science and Training in Sports, Goethe University Frankfurt, Frankfurt, Germany.
| | - B Wieland
- Institute of Sport Sciences, Movement Science and Training in Sports, Goethe University Frankfurt, Frankfurt, Germany
| | - L Rettenmaier
- Institute of Sport Sciences, Movement Science and Training in Sports, Goethe University Frankfurt, Frankfurt, Germany
| | - M Behringer
- Institute of Sport Sciences, Sports Medicine and Exercise Physiology, Goethe University Frankfurt, Frankfurt, Germany
| | - K Zentgraf
- Institute of Sport Sciences, Movement Science and Training in Sports, Goethe University Frankfurt, Frankfurt, Germany
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18
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Pakosz P, Lukanova-Jakubowska A, Łuszczki E, Gnoiński M, García-García O. Asymmetry and changes in the neuromuscular profile of short-track athletes as a result of strength training. PLoS One 2021; 16:e0261265. [PMID: 34919582 PMCID: PMC8682892 DOI: 10.1371/journal.pone.0261265] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 11/26/2021] [Indexed: 11/21/2022] Open
Abstract
Background The purpose of this study was to identify the biomedical signals of short-track athletes by evaluating the effects of monthly strength training on changes in their neuromuscular profile, strength, and power parameters of the lower limb muscles. Muscle asymmetry, which can cause a risk of injury, was also evaluated. Methods and results This study involved female athletes, age 18.8 ± 2.7 years, with a height of 162 ± 2.4 cm, and weight of 55.9 ± 3.9 kg. Before and after the monthly preparatory period prior to the season, strength measurements were assessed through the Swift SpeedMat platform, and reactivity of the lower limb muscles was assessed with tensiomyography (TMG). The athletes were also tested before and after the recovery training period. In the test after strength training, all average countermovement jump (CMJ) results improved. Flight time showed an increase with a moderate to large effect, using both legs (5.21%). Among the TMG parameters, time contraction (Tc) changed globally with a decrease (-5.20%). Changes in the results of the test after recovery training were most often not significant. Conclusion A monthly period of strength training changes the neuromuscular profile of short-track female athletes, with no significant differences between the right and left lower limbs.
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Affiliation(s)
- Paweł Pakosz
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Opole, Poland
- * E-mail:
| | | | - Edyta Łuszczki
- Institute of Health Sciences, Medical College of Rzeszow University, Rzeszow, Poland
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Tensiomyographic changes of muscle contractile properties in individuals with lower-limb amputation: A pilot study. Prosthet Orthot Int 2021; 45:350-354. [PMID: 33856152 DOI: 10.1097/pxr.0000000000000011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 12/06/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND Individuals with a unilateral lower-limb amputation (LLA) rely heavily on their intact limb during daily physical activities. However, there is limited research on the resultant effects of this over-reliance on contractile properties of muscles in the intact limb. OBJECTIVE To compare the muscle contractile properties of the intact limb among individuals with a unilateral LLA to those of age-matched able-bodied individuals, using tensiomyography. STUDY DESIGN This is a cross-sectional, observational study. METHODS Nine men with a unilateral LLA and 10 able-bodied men (control) were included. Tensiomyography measures were obtained for 5 muscles: gastrocnemius lateralis (GL) and medialis (GM), rectus femoris, vastus lateralis (VL), and vastus medialis. Contraction time (Tc), delay time (Td), maximal displacement (Dm), and velocity of deformation (Vd) for each muscle were compared between groups. RESULTS Tc and Td for the GL and GM muscles were lower for the LLA than the control group (GL: P = .03, r = -0.51, P < .01, r = 0.67; GM: P = .02, r = 0.53, P = .07, r = 0.54, respectively). Dm and Vd of the VL were significantly smaller in the LLA than the control group (P < .01, r = 0.73, P < .01, r = 0.23, respectively). CONCLUSIONS Men with a unilateral LLA seem to have slower deformation of the gastrocnemius muscles and higher stiffness of the VL than able-bodied controls. These findings may be indicative of an overuse of the intact limb as a compensation for the unilateral LLA. The confirmation of these findings in a larger sample size is required to translate these findings to practice.
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Roth C, Rettenmaier L, Behringer M. High-Protein Energy-Restriction: Effects on Body Composition, Contractile Properties, Mood, and Sleep in Active Young College Students. Front Sports Act Living 2021; 3:683327. [PMID: 34212136 PMCID: PMC8239143 DOI: 10.3389/fspor.2021.683327] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 05/18/2021] [Indexed: 12/15/2022] Open
Abstract
Background: It is often advised to ensure a high-protein intake during energy-restricted diets. However, it is unclear whether a high-protein intake is able to maintain muscle mass and contractility in the absence of resistance training. Materials and Methods: After 1 week of body mass maintenance (45 kcal/kg), 28 male college students not performing resistance training were randomized to either the energy-restricted (ER, 30 kcal/kg, n = 14) or the eucaloric control group (CG, 45 kcal/kg, n = 14) for 6 weeks. Both groups had their protein intake matched at 2.8 g/kg fat-free-mass and continued their habitual training throughout the study. Body composition was assessed weekly using multifrequency bioelectrical impedance analysis. Contractile properties of the m. rectus femoris were examined with Tensiomyography and MyotonPRO at weeks 1, 3, and 5 along with sleep (PSQI) and mood (POMS). Results: The ER group revealed greater reductions in body mass (Δ -3.22 kg vs. Δ 1.90 kg, p < 0.001, partial η 2 = 0.360), lean body mass (Δ -1.49 kg vs. Δ 0.68 kg, p < 0.001, partial η 2 = 0.152), body cell mass (Δ -0.85 kg vs. Δ 0.59 kg, p < 0.001, partial η 2 = 0.181), intracellular water (Δ -0.58 l vs. Δ 0.55 l, p < 0.001, partial η 2 = 0.445) and body fat percentage (Δ -1.74% vs. Δ 1.22%, p < 0.001, partial η 2 = 433) compared to the CG. Contractile properties, sleep onset, sleep duration as well as depression, fatigue and hostility did not change (p > 0.05). The PSQI score (Δ -1.43 vs. Δ -0.64, p = 0.006, partial η 2 = 0.176) and vigor (Δ -2.79 vs. Δ -4.71, p = 0.040, partial η 2 = 0.116) decreased significantly in the ER group and the CG, respectively. Discussion: The present data show that a high-protein intake alone was not able to prevent lean mass loss associated with a 6-week moderate energy restriction in college students. Notably, it is unknown whether protein intake at 2.8 g/kg fat-free-mass prevented larger decreases in lean body mass. Muscle contractility was not negatively altered by this form of energy restriction. Sleep quality improved in both groups. Whether these advantages are due to the high-protein intake cannot be clarified and warrants further study. Although vigor was negatively affected in both groups, other mood parameters did not change.
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Affiliation(s)
- Christian Roth
- Department of Sports Medicine and Exercise Physiology, Institute of Sport Sciences, Goethe University Frankfurt, Frankfurt, Germany
| | - Lukas Rettenmaier
- Department of Sports Medicine and Exercise Physiology, Institute of Sport Sciences, Goethe University Frankfurt, Frankfurt, Germany
| | - Michael Behringer
- Department of Sports Medicine and Exercise Physiology, Institute of Sport Sciences, Goethe University Frankfurt, Frankfurt, Germany
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Amirova LE, Plehuna A, Rukavishnikov IV, Saveko AA, Peipsi A, Tomilovskaya ES. Sharp Changes in Muscle Tone in Humans Under Simulated Microgravity. Front Physiol 2021; 12:661922. [PMID: 34025451 PMCID: PMC8134537 DOI: 10.3389/fphys.2021.661922] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/26/2021] [Indexed: 11/17/2022] Open
Abstract
A decrease in muscle tone induced by space flight requires a standardized assessment of changes to control the state of the neuromuscular system. This study is a step toward the development of a unified protocol, aimed at determining the initial effect of the presence or withdrawal of support on muscle tone, the effects of a 2-h supportlessness in Dry Immersion (DI) experiments, and the changes in muscle tone depending on the site of measurement. To perform measurements of changes in muscle tone, we used a MyotonPRO device. The list of muscles that we assessed includes: trunk – mm. deltoideus posterior, trapezius, erector spinae; leg – mm. biceps femoris, rectus femoris, tibialis anterior, soleus, gastrocnemius; foot – m. flexor digitorum brevis, tendo Achillis, aponeurosis plantaris. The study involved 12 healthy volunteers (6 men, 6 women) without musculoskeletal disorders and aged 32.8 ± 1.6 years. At the start of DI, there was a significant decrease in muscle tone of the following muscles: mm. tibialis anterior (−10.9%), soleus (−9.6%), erector spinae (−14.4%), and the tendo Achillis (−15.3%). The decrease continued to intensify over the next 2 h. In contrast, the gastrocnemius muscle demonstrated an increase in muscle tone (+7.5%) 2 h after the start of DI compared to the immediate in-bath baseline. Muscle tone values were found to be site-dependent and varied in different projections of mm. erector spinae and soleus. In previous experiments, we observed a high sensitivity of the myotonometry technique, which was confirmed in this study. To make it possible to compare data from different studies, a standardized protocol for measuring muscle tone for general use in gravitational physiology needs to be developed.
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Affiliation(s)
- Liubov E Amirova
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | - Anastasija Plehuna
- King's College London, Centre of Human & Applied Physiological Sciences, London, United Kingdom
| | - Ilya V Rukavishnikov
- Department of Medical Support for Spaceflight, Institute of Biomedical Problem of Russian Academy of Science, Moscow, Russia
| | - Alina A Saveko
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
| | | | - Elena S Tomilovskaya
- Laboratory of Gravitational Physiology of the Sensorimotor System, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia
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Effects of a Massage Protocol in Tensiomyographic and Myotonometric Proprieties. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18083891. [PMID: 33917668 PMCID: PMC8067956 DOI: 10.3390/ijerph18083891] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/30/2021] [Accepted: 04/03/2021] [Indexed: 12/15/2022]
Abstract
Background: Pre-competition massage is usually used to improve athletic performance and reduce risk of injury. Despite its usual use, the effects of pre-competition massage on neuromuscular function have barely been studied. The aim of this study is to evaluate the effects of the pre-competition massage over the gastrocnemius neuromuscular function. Method: The study is a quasi-experimental clinical trial thirty healthy athletes were enrolled in the study. Subjects received an intervention in one leg (experimental), consisting of a massage, and no intervention in the opposite leg (control). From all values of neuromuscular function, the following were analyzed: contraction time (Tc) and maximal displacement (Dm) by tensiomyography, and stiffness and tone by myotonometry. Results: Main effects of pre-competition massage on neuromuscular function include a significant (p < 0.05) increase in Tc and Dm variables, as well as a reduction in stiffness and tone. Conclusion: Data shows an increase in Tc and maximal radial displacement (Dm) variables, as well as a reduction in stiffness and tone. More quality studies are needed to draw clear conclusions about the effects of pre-competition massage.
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Lohr C, Medina-Porqueres I. Immediate effects of myofascial release on neuromechanical characteristics in female and male patients with low back pain and healthy controls as assessed by tensiomyography. A controlled matched-pair study. Clin Biomech (Bristol, Avon) 2021; 84:105351. [PMID: 33848704 DOI: 10.1016/j.clinbiomech.2021.105351] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 03/04/2021] [Accepted: 04/01/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Low back pain (LBP) is a major health issue in most industrialised countries. Lumbodorsal fascia has been advocated as a potential source of pain in the lumbopelvic region. Myofascial release constitutes a manual therapeutic approach focussing on the restoration of altered soft tissue function. No previous study has focused on quantifying neuromechanical effects of myofascial release on LBP patients through tensiomyography. The purpose of this study was to quantify immediate neuromechanical alterations of myofascial release on patients with LBP and healthy controls through tensiomyography parameters. METHODS The participants' (n = 30) bilateral lumbar erector spinae muscles were assessed via tensiomyography before and after a 6-min myofascial release treatment of the lumbodorsal fascia to evaluate the muscles' mechanical characteristics. Subjects with LBP (n = 15) were eligible to partake if they reported having had LBP for most days in the past 12 weeks. Muscle displacement (Dm [mm]), velocity of contraction (Vc [mm/s]), and lateral symmetry (Ls [%]) were assessed through tensiomyography testing. FINDINGS Statistical analyses revealed a significant increase for velocity of contraction in the right (p = .021) and left (p = .041) lumbar erector spinae for the subjects with LBP but not for the healthy controls (both p > .14). INTERPRETATION We suggested that myofascial release alters neuromechanical characteristics in subjects with LBP. Tensiomyography may be implemented in clinical settings to monitor intervention effects of the myofascial system, especially the tensiomyography parameter velocity of contraction.
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Affiliation(s)
- Christine Lohr
- Department of Sports and Exercise Medicine, Institute for Human Movement Science, Faculty for Psychology and Human Movement Science, University of Hamburg, Hamburg, Germany.
| | - Ivan Medina-Porqueres
- Department of Physical Therapy, Faculty of Health Sciences, University of Malaga, Malaga, Spain.
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Comparison of Interventional Strategies to Improve Recovery after Eccentric Exercise-Induced Muscle Fatigue. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18020647. [PMID: 33466606 PMCID: PMC7828692 DOI: 10.3390/ijerph18020647] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/10/2021] [Accepted: 01/11/2021] [Indexed: 12/27/2022]
Abstract
The aim of this study was to compare the effects of various recovery techniques on muscle tissue after eccentric exercise-induced muscle fatigue (EIMF). Forty subjects (24.3 ± 2.6 years; 77.45 ± 8.3 kg; 177.0 ± 6.4 cm; 24.66 ± 1.6 kg∙m-2) were randomly assigned to one of the following groups: manual therapy (n =10, MT), mechanical vibration (n = 10, MV), percussion therapy (n = 10, PT) or foam roller (n = 10, FR). The contraction time (Tc) and the radial displacement (Dm) of the gastrocnemius was evaluated through tensiomyography (TMG). The application of the different techniques had positive effects for Tc and Dm in the treated leg compared to the untreated leg (F = 50.01, p < 0.01, η2p = 0.58 and F = 27.58, p < 0.01, η2p = 0.43, respectively) and for the interaction of the factors (Time x Leg x Therapy: F = 5.76, p < 0.01, η2p = 0.32 and F = 5.93, p < 0.01, η2p = 0.33, respectively). The results of the various methods used were similar: Tc (F = 0.17, p = 0.917; η2p = 0.01) and Dm (F = 3.30, p = 0.031, η2p = 0.22). PT interventions show potential for restoring muscle compliance and reducing stiffness, similar to MT and possibly more effective (cost-time relationship) compared to MV or FR.
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AN ASSESSMENT OF THE CONTRACTILE PROPERTIES OF THE SHOULDER MUSCULATURE IN ELITE VOLLEYBALL PLAYERS USING TENSIOMYOGRAPHY. Int J Sports Phys Ther 2020; 15:1099-1109. [PMID: 33344027 DOI: 10.26603/ijspt20201099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background In volleyball, offensive (Hitters) and defensive players (Non-Hitters) perform differing actions that vary both kinematically and in terms of intensity. This may impose contrasting demands on the musculature involved in performing these actions. Previous research has identified differences in the muscle activation and contractile properties of the lower-body musculature between positions. Additionally, asymmetries between dominant and non-dominant limbs of the upper-body musculature has been observed in athletes performing overhead movements. Purpose The aim of this study was to use Tensiomyography (TMG) to examine the contractile properties of the shoulder musculature in elite volleyball players. Study Design Cross-sectional study. Methods Thirty-one elite volleyball players participated in this study (Age: 23 ± 2 yrs, Body Mass: 76.5 ± 9.8 kg, Stature: 181 ± 9.3 cm), 26 of which displayed right-limb dominance and five displayed left-limb dominance. Contractile properties of the shoulder musculature including the anterior deltoid (AD), biceps brachii (BB), posterior deltoid (PD), and the upper trapezius (UT) were assessed bilaterally using TMG measures on one occasion prior to any training or exercise. The contractile measures provided by TMG included the maximal displacement (Dm), contraction time (Tc), delay time (Td), sustain time (Ts), and the relaxation time (Tr). Results No statistically significant differences were observed between positions or limbs, except that Hitters displayed a significantly lower Ts of the left AD compared to Non-hitters (p = 0.01, ES = 1.02), and significant differences between dominant and non-dominant sides in the Td of the UT in Non-hitters were present (p = 0.05, ES = 0.8). Conclusion These data suggest that irrespective of playing position and limb dominance, contractile properties of the shoulder musculature in elite volleyball players, as measured using TMG, display few significant differences. Levels of Evidence 3b.
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Normative data and correlation between dynamic knee valgus and neuromuscular response among healthy active males: a cross-sectional study. Sci Rep 2020; 10:17206. [PMID: 33268811 PMCID: PMC7710730 DOI: 10.1038/s41598-020-74177-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 09/28/2020] [Indexed: 02/07/2023] Open
Abstract
The dynamic knee valgus (DKV) during different sport maneuvers has been widely described as risk factor to develop an anterior cruciate ligament injury. Hip and knee muscles seem to have a crucial role to prevent the dynamic knee valgus. This study aimed to give normative and correlational data about DKV and hip and knee neuromuscular response (NMR) among healthy active males. The hypothesis is that DKV could be correlated with hip NMR. A cross-sectional correlational study. Research Anatomy Laboratory. The study was carried out among 50 active, non-injured males. Dynamic Knee-Valgus angle and lower limb posterior chain muscles Neuromuscular Response. DKV was measured using Kinovea software during a Single-Legged Drop Jump test and NMR was measured using tensiomyography and myotonometry for gluteus maximum, biceps femoris, semitendinosus, lateral and medial gastrocnemius. Right and left limbs were both performed and analyzed independently. No significant correlation was observed between DKV and hip and knee muscles NMR. This study shows normative and correlational data about dynamic knee valgus, tensiomyography and myotonometry for healthy and active males. The DKV control seems to be non-correlated with isolated hip and knee muscles NMR so this suggests it is more about Central Nervous System activity than about isolated muscles NMR.
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García-García O, Cuba-Dorado A, Riveiro-Bozada A, Carballo-López J, Álvarez-Yates T, López-Chicharro J. A Maximal Incremental Test in Cyclists Causes Greater Peripheral Fatigue in Biceps Femoris. RESEARCH QUARTERLY FOR EXERCISE AND SPORT 2020; 91:460-468. [PMID: 31906803 DOI: 10.1080/02701367.2019.1680789] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 10/10/2019] [Indexed: 06/10/2023]
Abstract
Purpose: The aim of this study was to determine the changes in neuromuscular contractile properties in elite cyclists associated to the peripheral fatigue produced in a maximal incremental test in cycle ergometer. Methods: Forty-eight volunteers' well-trained male cyclists were evaluated during the competition season within a recovery microcycle. Tensiomyography was used before and after performing an incremental test until exhaustion in cycle ergometer to measure the radial muscle belly displacement of the vastus lateralis (VL), rectus femoris (RF), and biceps femoris (BF) on the dominant leg. Maximum radial muscle belly displacement (Dm), contraction time (Tc), delay time (Td), sustain time (Ts), and radial displacement velocity (Vrd) were measured. Mixed-design factorial analysis of variance was used to detect changes in the mechanical and neuromuscular characteristics after a maximal incremental exercise test. Results: The results show in the evaluated muscles a moderate-large decrease (p < .01, η2 = 0.06-0.51) in Tc, Td, Dm, Ts, and Vrd. This decrease occurs more sharply in the BF than in RF or VL. Conclusion: An incremental effort until exhaustion produces peripheral fatigue associated with a decrease in Dm, Tc, Td, Ts, and Vrd, being more pronounced in biceps femoris than in vastus lateralis and rectus femoris. Coaches can use these changes found in the contractile properties as a reference to detect the muscle fatigue degree that certain training models pose for the cyclist.
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Early clinical and neuromuscular properties in patients with normal or sub-normal subjective knee function after anterior cruciate ligament reconstruction. Arch Orthop Trauma Surg 2020; 140:1231-1239. [PMID: 32270278 DOI: 10.1007/s00402-020-03436-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Indexed: 02/09/2023]
Abstract
PURPOSE To determine clinical and neuromuscular properties in patients with normal or sub-normal subjective knee function after finalisation of 6 months' post-operative rehabilitation following anterior cruciate ligament reconstruction (ACLR). METHODS Sixty patients after primary anatomical single-bundle hamstring ACLR were prospectively enrolled. Demographics, subjective, clinical and functional status of the injured knee were recorded at baseline, 6 and 12 months post-operatively. Return to pre-injury activities time (months) was monitored. Tensiomyography and isokinetic dynamometry of thigh muscles were performed at 6 months, when standard ACLR rehabilitation is finalized. Based on their IKDC Subjective Knee Evaluation scores at 6 months, they were assigned into "Normal" or "Sub-normal" group. All the above measured parameters were then compared between the two groups. RESULTS At 6 months' timeline, 21 patients (35%) perceived their knee function as "Normal", while 39 (65%) were "Sub-normal". There were no differences in clinical status between both groups, but patients in Normal group achieved higher IKDC, Lysholm, Tegner scores as well as higher single-leg hop test. They were taller, had lower body mass index and more of them achieved their preinjury level of activity at 12 months (67% vs. 33%). Tensiomyography revealed higher biceps femoris as well as semitendinosus and semimembranosus radial displacement values on the operated leg in Normal group. Isokinetic dynamometry showed significantly higher normalised peak torque and average power of knee extensor muscles. CONCLUSIONS Patients who perceive their knee function as normal at 6 months following ACLR presented with better neuromuscular properties of the thigh muscles. Decreased hamstring stiffness seems to be the key to higher return-to-preinjury activity. Postoperative rehabilitation should be more focused on reducing hamstring stiffness in addition to improving knee extensor muscle strength. Level of evidence II (prospective cohort study).
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Park S. Theory and usage of tensiomyography and the analysis method for the patient with low back pain. J Exerc Rehabil 2020; 16:325-331. [PMID: 32913837 PMCID: PMC7463063 DOI: 10.12965/jer.2040420.210] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 07/04/2020] [Indexed: 11/22/2022] Open
Abstract
Tensiomyography (TMG) is an injury detecting tool for muscle group imbalances and/or side-to-side asymmetries. It is liable to detect to measure contractile properties and mechanical responses based on muscle belly displacement. Although other previous papers have well suggested the methods for examining the several muscle groups using TMG, a detecting method for the imbalances in low back muscles has not been investigated, and no review papers have been compiled. Therefore, this study aimed to synthesize the theories of the previous studies observed using TMG and to briefly summarize its usefulness by performing simple experiments on the left and right regions of the erector spinae muscles, which may be a problem using TMG for patients with low back pain.
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Affiliation(s)
- Sihwa Park
- Department of Sports and Leisure Studies, Korea University, Sejong, Korea.,Research Institute of Sports and Industry Science, Hanseo University, Seosan, Korea
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Muscle excitation, force response, and efficiency during explosive force production after diacutaneous fibrolysis on lateral gastrocnemius of recreational athletes. J Bodyw Mov Ther 2020; 24:554-560. [PMID: 33218560 DOI: 10.1016/j.jbmt.2020.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 07/20/2020] [Accepted: 08/08/2020] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Fibrous adhesions impair normal muscle mechanics. The present study aimed to assess lateral gastrocnemius muscle excitation, isometric force response, and neuromuscular efficiency during explosive force in plantarflexion before and after diacutaneous fibrolysis. METHODS Thirty-five recreational athletes were allocated in the intervention group (n = 20) treated with diacutaneous fibrolysis, while the sham group (n = 15) was treated with placebo diacutaneous fibrolysis. Force response synchronized with surface electromyography during a plantarflexion task was collected. RESULTS Differences between Pre- and Post-diacutaneous fibrolysis were observed for all variables, except for the placebo group. CONCLUSIONS Diacutaneous fibrolysis was effective to increase force, muscle excitation, and neuromuscular efficiency on lateral gastrocnemius.
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AlMohimeed I, Ono Y. Ultrasound Measurement of Skeletal Muscle Contractile Parameters Using Flexible and Wearable Single-Element Ultrasonic Sensor. SENSORS 2020; 20:s20133616. [PMID: 32605006 PMCID: PMC7374409 DOI: 10.3390/s20133616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/17/2020] [Accepted: 06/23/2020] [Indexed: 12/25/2022]
Abstract
Skeletal muscle is considered as a near-constant volume system, and the contractions of the muscle are related to the changes in tissue thickness. Assessment of the skeletal muscle contractile parameters such as maximum contraction thickness (Th), contraction time (Tc), contraction velocity (Vc), sustain time (Ts), and half-relaxation (Tr) provides valuable information for various medical applications. This paper presents a single-element wearable ultrasonic sensor (WUS) and a method to measure the skeletal muscle contractile parameters in A-mode ultrasonic data acquisition. The developed WUS was made of double-layer polyvinylidene fluoride (PVDF) piezoelectric polymer films with a simple and low-cost fabrication process. A flexible, lightweight, thin, and small size WUS would provide a secure attachment to the skin surface without affecting the muscle contraction dynamics of interest. The developed WUS was employed to monitor the contractions of gastrocnemius (GC) muscle of a human subject. The GC muscle contractions were evoked by the electrical muscle stimulation (EMS) at varying EMS frequencies from 2 Hz up to 30 Hz. The tissue thickness changes due to the muscle contractions were measured by utilizing a time-of-flight method in the ultrasonic through-transmission mode. The developed WUS demonstrated the capability to monitor the tissue thickness changes during the unfused and fused tetanic contractions. The tetanic progression level was quantitatively assessed using the parameter of the fusion index (FI) obtained. In addition, the contractile parameters (Th, Tc, Vc, Ts, and Tr) were successfully extracted from the measured tissue thickness changes. In addition, the unfused and fused tetanus frequencies were estimated from the obtained FI-EMS frequency curve. The WUS and ultrasonic method proposed in this study could be a valuable tool for inexpensive, non-invasive, and continuous monitoring of the skeletal muscle contractile properties.
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Affiliation(s)
- Ibrahim AlMohimeed
- Department of Systems and Computer Engineering, Carleton University, Ottawa, ON K1S 5B6, Canada;
- Department of Medical Equipment Technology, Majmaah University, Majmaah 11952, Saudi Arabia
| | - Yuu Ono
- Department of Systems and Computer Engineering, Carleton University, Ottawa, ON K1S 5B6, Canada;
- Correspondence:
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Piqueras-Sanchiz F, Martín-Rodríguez S, Pareja-Blanco F, Baraja-Vegas L, Blázquez-Fernández J, Bautista IJ, García-García Ó. Mechanomyographic Measures of Muscle Contractile Properties are Influenced by Electrode Size and Stimulation Pulse Duration. Sci Rep 2020; 10:8192. [PMID: 32424300 PMCID: PMC7235246 DOI: 10.1038/s41598-020-65111-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 04/27/2020] [Indexed: 11/22/2022] Open
Abstract
The aim was to determine the effects of changing pulse duration and electrode size on muscle contractile properties. Thirty-six healthy young male participated in the study (age 24.8 ± 5.8 years; height 178.2 ± 0.6 cm; body mass 71.8 ± 7.3 kg; self-reported weekly moderate intensity activity 3.5 ± 1.2 h·week−1). Tensiomyography was used to assess rectus femoris (RF) and vastus medialis (VM) muscles neuromuscular properties of the dominant leg according to the electrode size (3.2–5 cm) and the stimulus length (0.2, 0.5, and 1 ms). Maximal radial displacement (Dm); Contraction time (Tc); Delay time (Td); Sustained time (Ts) and Half relaxation time (Tr) were measured. Relative and absolute reliability was quantified. To analyze the effects of the electrode and the stimulus length, a repeated-measures analysis of variance was used. Dm and Tc parameters showed for both muscles an excellent relative (0.95–0.99) and absolute reliability (1.6–4.2%). However, Ts and Tr showed low values of absolute reliability (4.4–40.9%). The duration of the stimulus length applied to the RF and VM and electrode size significantly influences muscle’s contractile properties (p < 0.05; η2p = 0.09–0.60). The Dm increases substantially as the duration of the stimulus increases and with the use of the larger electrode in both muscles. However, Tc and Td are less affected by both conditions and not entirely clear. Practically, our study suggests that a stimulus pulse duration of 1 ms together with a 5 × 5 cm electrode is necessary to reach a reliable and reproducible assessment of both RF and VM muscles contractile properties.
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Affiliation(s)
| | - Saúl Martín-Rodríguez
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Luis Baraja-Vegas
- Department of Physiotherapy, Catholic University of Valencia, Valencia, Spain
| | | | - Iker J Bautista
- Faculty of Physiotherapy and Podology, Catholic University of Valencia, Valencia, Spain
| | - Óscar García-García
- Laboratory of Sports Performance, Physical Condition and Wellness, Faculty of Education and Sport Sciences, Universidade de Vigo, Pontevedra, Spain.
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