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Getirana-Mota M, Aidar FJ, Ribeiro Neto F, Santos TP, Almeida-Neto PFD, Cabral BGDAT, Vieira-Souza LM, D. Garrido N, Reis VM, Souza RF. Comparison of Neuromuscular Fatigue in Powerlifting Paralympics in Different Training Methods. Sports Med Int Open 2024; 8:a22077922. [PMID: 38812958 PMCID: PMC11135401 DOI: 10.1055/a-2207-7922] [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: 07/16/2023] [Accepted: 10/31/2023] [Indexed: 05/31/2024] Open
Abstract
Mean propulsive velocity (MPV) has been associated with neuromuscular fatigue; however, its suitability for strength training in Paralympic powerlifting (PP) remains uncertain. The objective of this work was to evaluate the MPV in two training methods (traditional-TRAD and eccentric-ECC). Eleven PP athletes were evaluated pre, during the intervention and post intervention at a load of 80% of the 1RM for TRAD and 110%-80% of 1 RM for ECC. The results demonstrated that there was no significant neuromuscular fatigue for the TRAD (~5% performance loss), as well as no significant decline in MPV during the intervention. For the ECC, there is a significant reduction in MPV before and after training (~12% loss of performance). A difference between TRAD and ECC after the intervention was also identified (0.87 m/s±0.22, 95% CI 0.72-1.02 vs. 0.72±0.20, 95% CI 0.59-0.86 p=0.042, F(3.30)=10.190, η2p=0.505 - very high effect). During the intervention for ECC, no significant decline in MPV was observed. The results of this study suggest that the mechanical indices of MPV do not seem to be effective indicators of neuromuscular fatigue in the sample studied or in the context of this specific training regime, being more indicated as a control of training volume.
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Affiliation(s)
- Márcio Getirana-Mota
- Graduate Program of Physical Education, Federal University of Sergipe,
Sao Cristovao, Brazil
- Group of Studies and Research of Performance, Sport, Health and
Paralympic Sports - GPEPS, the Federal University of Sergipe, São Cristóvão,
Brazil
- Graduate Program of Physiological Science, Federal University of
Sergipe, São Cristóvão, Brazil
| | - Felipe J. Aidar
- Graduate Program of Physical Education, Federal University of Sergipe,
Sao Cristovao, Brazil
- Group of Studies and Research of Performance, Sport, Health and
Paralympic Sports - GPEPS, the Federal University of Sergipe, São Cristóvão,
Brazil
- Graduate Program of Physiological Science, Federal University of
Sergipe, São Cristóvão, Brazil
| | | | - Taísa Pereira Santos
- Graduate Program of Physical Education, Federal University of Sergipe,
Sao Cristovao, Brazil
- Group of Studies and Research of Performance, Sport, Health and
Paralympic Sports - GPEPS, the Federal University of Sergipe, São Cristóvão,
Brazil
| | | | | | - Lucio Marques Vieira-Souza
- Graduate Program of Physical Education, Federal University of Sergipe,
Sao Cristovao, Brazil
- Physical Education Course, State University of Minas Gerais-UEMG,
Passos, Brazil
| | - Nuno D. Garrido
- Research Center in Sports Sciences, Health Sciences and Human
Development (CIDESD), University of Trás-os-Montes e Alto Douro, Vila Real,
Portugal
| | - Victor M. Reis
- Research Center in Sports Sciences, Health Sciences and Human
Development (CIDESD), University of Trás-os-Montes e Alto Douro, Vila Real,
Portugal
| | - Raphael Fabricio Souza
- Graduate Program of Physical Education, Federal University of Sergipe,
Sao Cristovao, Brazil
- Group of Studies and Research of Performance, Sport, Health and
Paralympic Sports - GPEPS, the Federal University of Sergipe, São Cristóvão,
Brazil
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Muyor JM, Rodríguez-Ridao D, Oliva-Lozano JM. Comparison of Muscle Activity between the Horizontal Bench Press and the Seated Chest Press Exercises Using Several Grips. J Hum Kinet 2023; 87:23-34. [PMID: 37229415 PMCID: PMC10203828 DOI: 10.5114/jhk/161468] [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: 07/20/2022] [Accepted: 11/07/2022] [Indexed: 05/27/2023] Open
Abstract
This study aims to compare muscle activity in the pectoralis major, anterior deltoid, and triceps brachii in the horizontal bench press exercise with a prone grip at 150% and 50% of the biacromial width and the seated chest press exercise with two types of grips (a neutral grip at ~150% of the biacromial width and a prone grip at ~200% of the biacromial width). Twenty physically active adults performed a set of 8 repetitions at 60% of the one repetition maximum. The results showed that the clavicular portion of the pectoralis major had significantly greater muscle activity in the seated chest press exercise with a neutral grip (~30% of the maximal voluntary isometric contraction (MVIC)) than in the lying bench press exercise with a prone grip at 150% of the biacromial width (~25% MVIC). The muscle activity of the anterior deltoid was not significantly different across any exercise or grip evaluated (~24% MVIC). The muscle activity of the triceps brachii was significantly higher in the lying bench press exercise with a grip at 50% biacromial width (~16% MVIC) than at 150% of the biacromial width (~12% MVIC). In conclusion, all exercises and grips showed similar muscle activity, and the selection of these exercises should not be based exclusively on the grounds of muscle activation but rather on the load capacity lifted, the level of technique of the participant, and/or the transference to the specific sporting discipline or event.
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Affiliation(s)
- José M. Muyor
- Health Research Centre, Faculty of Educational Sciences, University of Almería, Almería, Spain
| | - David Rodríguez-Ridao
- Health Research Centre, Faculty of Educational Sciences, University of Almería, Almería, Spain
| | - José M. Oliva-Lozano
- Health Research Centre, Faculty of Educational Sciences, University of Almería, Almería, Spain
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3
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Activation of the three deltoid muscle portions during common strengthening exercises: A systematic review. J Bodyw Mov Ther 2022. [DOI: 10.1016/j.jbmt.2022.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Albarello JCDS, Cabral HV, Leitão BFM, Halmenschlager GH, Lulic-Kuryllo T, Matta TTD. Non-uniform excitation of pectoralis major induced by changes in bench press inclination leads to uneven variations in the cross-sectional area measured by panoramic ultrasonography. J Electromyogr Kinesiol 2022; 67:102722. [PMID: 36334406 DOI: 10.1016/j.jelekin.2022.102722] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/20/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022] Open
Abstract
This study combined surface electromyography with panoramic ultrasound imaging to investigate whether non-uniform excitation could lead to acute localized variations in cross-sectional area and muscle thickness of the clavicular and sternocostal heads of pectoralis major (PM). Bipolar surface electromyograms (EMGs) were acquired from both PM heads, while 13 men performed four sets of the flat and 45° inclined bench press exercises. Before and immediately after exercise, panoramic ultrasound images were collected transversely to the fibers. Normalized root mean square (RMS) amplitude and variations in the cross-sectional area and muscle thickness were calculated separately for each PM head. For all sets of the inclined bench press, the normalized RMS amplitude was greater for the clavicular head than the sternocostal head (P < 0.001), and the opposite was observed during the flat bench press (P < 0.001). Similarly, while greater increases in cross-sectional area were observed in the clavicular than in the sternocostal head after the inclined bench press (P < 0.001), greater increases were quantified in the sternocostal than in the clavicular head after the flat bench press exercise (P = 0.046). Therefore, our results suggest that the PM regional excitation induced by changes in bench press inclination leads to acute, uneven responses of muscle architecture following the exercise.
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Affiliation(s)
- José Carlos Dos Santos Albarello
- Laboratório de Biomecânica Muscular, Escola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Hélio V Cabral
- Department of Clinical and Experimental Sciences, Università degli Studi di Brescia, Brescia, Italy.
| | - Bruno Felipe Mendonça Leitão
- Laboratório de Biomecânica Muscular, Escola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gustavo Henrique Halmenschlager
- Laboratório de Biomecânica Muscular, Escola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tea Lulic-Kuryllo
- Department of Clinical and Experimental Sciences, Università degli Studi di Brescia, Brescia, Italy
| | - Thiago Torres da Matta
- Laboratório de Biomecânica Muscular, Escola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Martín-Fuentes I, Oliva-Lozano JM, Muyor JM. Influence of Feet Position and Execution Velocity on Muscle Activation and Kinematic Parameters During the Inclined Leg Press Exercise. Sports Health 2022; 14:317-327. [PMID: 34085847 PMCID: PMC9112713 DOI: 10.1177/19417381211016357] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The leg press is one of the most typical exercises for strengthening the lower limbs. The objectives of this study were to compare 5 inclined leg press exercise conditions, varying the feet width stance (100% or 150% hip width), the feet rotation (0° or 45° external rotation) on the footplate and using 2 different movement velocities (MVs; maximum intended, and 2:2 seconds steady-paced velocities) to determine their effect on muscle activation as well as on the kinematic parameters between trained men and trained women. HYPOTHESES There will be no significant differences in muscle activation with regard to the feet position. The higher the MV, the greater the muscle activation. STUDY DESIGN A cross-sectional cohort study. LEVEL OF EVIDENCE Level 3. METHODS A repeated-measures between-group design was performed to examine muscle activation and kinematic parameters for the different conditions between gender groups. The level of significance was set at alpha = 0.05 for all statistical analyses. RESULTS Muscle activation presented no differences between conditions regarding feet width stance or feet rotation. Furthermore, muscle activation was greater during positive phases than negative phases of the exercise for all conditions and was also greater under maximum intended velocity conditions compared with steady-paced conditions. Otherwise, the muscle activation pattern presented slight differences by gender. In men, the greatest muscle activation was for the vastus medialis, followed by the vastus lateralis (VL), rectus femoris (RF), and gluteus medialis (GMED), while in women, the greatest muscle activation was for the vastus medialis, followed by the RF, VL, and GMED. Finally, greater mean propulsive velocity, maximum velocity, maximum power, and footplate displacement values were reported for men than for women under all the conditions. CONCLUSION The inclined leg press exercise produces the highest muscle activation in the vastus medialis, regardless of the velocity, feet stance, or gender. CLINICAL RELEVANCE Given that there are no differences in muscle activation regarding the feet stance, a participant's preferred feet stance should be encouraged during the inclined leg press exercise. Furthermore, the MV would preferably depend on the session objective (a training or a rehabilitation program), being aware that there is greater muscle activation at higher speeds. The inclined leg press exercise could be performed as a closed kinetic chain exercise when the main objective is to activate the vastus medialis.
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Affiliation(s)
| | | | - José M. Muyor
- Health Research Centre. University of Almería, Almería, Spain
- Laboratory of Kinesiology, Biomechanics and Ergonomics (KIBIOMER Lab) Research Central Services, University of Almería, Almería, Spain
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Guerra I, Aidar FJ, Greco G, de Almeida-Neto PF, De Candia M, de Araújo Tinoco Cabral BG, Poli L, Filho MM, Carvutto R, Silva AF, Clemente FM, Badicu G, Cataldi S, Fischetti F. Are sEMG, Velocity and Power Influenced by Athletes' Fixation in Paralympic Powerlifting? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19074127. [PMID: 35409809 PMCID: PMC8998439 DOI: 10.3390/ijerph19074127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 02/05/2023]
Abstract
The bench press is performed in parapowerlifting with the back, shoulders, buttocks, legs and heels extended over the bench, and the use of straps to secure the athlete to the bench is optional. Thus, the study evaluated muscle activation, surface electromyography (sEMG), maximum velocity (MaxV) and mean propulsive velocity (MPV), and power in paralympic powerlifting athletes under conditions tied or untied to the bench. Fifteen experienced Paralympic powerlifting male athletes (22.27 ± 10.30 years, 78.5 ± 21.6 kg) took part in the research. The sEMG measurement was performed in the sternal portion of the pectoralis major (PMES), anterior deltoid (AD), long head of the triceps brachii (TRI) and clavicular portion of the pectoralis major (PMCL). The MaxV, MPV and power were evaluated using an encoder. Loads of 40%, 60%, 80% and 100% 1RM were analyzed under untied and tied conditions. No differences were found in muscle activation between the tied and untied conditions; however, sEMG showed differences in the untied condition between AD and TRI (F (3112) = 4.484; p = 0.005) in the 100% 1RM load, between PMCL and AD (F (3112) = 3.743; p = 0.013) in 60% 1RM load and in the tied condition, between the PMES and the AD (F (3112) = 4.067; p = 0.009). There were differences in MaxV (F (3112) = 213.3; p < 0.001), and MPV (F (3112) = 248.2; p < 0.001), between all loads in the tied and untied condition. In power, the load of 100% 1RM differed from all other relative loads (F (3112) = 36.54; p < 0.001) in both conditions. The tied condition seems to favor muscle activation, sEMG, and velocity over the untied condition.
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Affiliation(s)
- Ialuska Guerra
- Federal Institute of Education, Science and Technology of Ceará (IFCE), Campus of Juazeiro do Norte, Juazeiro do Norte 63040-540, Brazil;
| | - Felipe J. Aidar
- Department of Physical Education, Federal University of Sergipe (UFS), Saint Cristopher 49100-000, Brazil;
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports (GEPEPS), Federal University of Sergipe (UFS), Saint Cristopher 49100-000, Brazil
- Graduate Program of Physiological Science, Federal University of Sergipe (UFS), Saint Cristopher 49100-000, Brazil
- Graduate Program of Physical Education, Federal University of Sergipe (UFS), Saint Cristopher 49100-000, Brazil
| | - Gianpiero Greco
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Study of Bari, 70124 Bari, Italy; (G.G.); (M.D.C.); (L.P.); (R.C.); (F.F.)
| | - Paulo Francisco de Almeida-Neto
- Department of Physical Education, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, Brazil; (P.F.d.A.-N.); (B.G.d.A.T.C.)
| | - Michele De Candia
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Study of Bari, 70124 Bari, Italy; (G.G.); (M.D.C.); (L.P.); (R.C.); (F.F.)
| | | | - Luca Poli
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Study of Bari, 70124 Bari, Italy; (G.G.); (M.D.C.); (L.P.); (R.C.); (F.F.)
| | - Mauro Mazini Filho
- Graduate Program of the School of Physical Education and Sports, Federal University of Juiz de Fora, Juiz de Fora 36036-900, Brazil;
| | - Roberto Carvutto
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Study of Bari, 70124 Bari, Italy; (G.G.); (M.D.C.); (L.P.); (R.C.); (F.F.)
| | - Ana Filipa Silva
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal; (A.F.S.); (F.M.C.)
- Research Center in Sports Performance, Recreation, Innovation and Technology (SPRINT), 4960-320 Melgaço, Portugal
- The Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), 5001-801 Vila Real, Portugal
| | - Filipe Manuel Clemente
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal; (A.F.S.); (F.M.C.)
- Instituto de Telecomunicações, Delegação da Covilhã, 1049-001 Lisboa, Portugal
| | - Georgian Badicu
- Department of Physical Education and Special Motricity, Transilvania University of Brasov, 500068 Brasov, Romania;
| | - Stefania Cataldi
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Study of Bari, 70124 Bari, Italy; (G.G.); (M.D.C.); (L.P.); (R.C.); (F.F.)
- Correspondence:
| | - Francesco Fischetti
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Study of Bari, 70124 Bari, Italy; (G.G.); (M.D.C.); (L.P.); (R.C.); (F.F.)
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Gomez D, Browne JD, Almalouhi A, Abundex M, Hu J, Nason S, Kull N, Mills C, Harris Q, Ku R, Neufeld EV, Dolezal BA. Muscle Activity During Immersive Virtual Reality Exergaming Incorporating an Adaptive Cable Resistance System. INTERNATIONAL JOURNAL OF EXERCISE SCIENCE 2022; 15:261-275. [PMID: 36896022 PMCID: PMC9987444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The purpose of this exploratory study was to characterize muscle activation via surface electromyography (sEMG), user-perceived exertion, and enjoyment during a 30-minute session of immersive virtual reality (IVR) cable resistance exergaming. Ten healthy, college-aged males completed a signature 30-minute exergaming session using an IVR adaptive cable resistance system that incorporated six traditional compound exercises. Muscle activation (sEMG) was captured during the session with a wearable sEMG system. Rated of Perceived Exertion (RPE) and Physical Activity Enjoyment Scale (PACES) were recorded following the session. Pectoralis major showed the highest activation during chest press, deltoids showed the highest activation on overhead press, latissimus dorsi showed the highest activation during lat pulldown and row exercises, hamstrings were the most activated muscles during Romanian deadlift, and glutes showed the highest activity during squats. RPE and PACES mean scores were 14 (1) and 4.27 (0.38), respectively. IVR exergaming with resistance cable training provides an enjoyable experience and distracts practitioners from exertion while exercising at a high intensity. Results from this study suggest similar muscle activation responses compared to traditional resistance exercises as demonstrated with prior evidence. This novel form of exercise might have important repercussions for improving health outcomes among those who find it challenging to adhere to and enjoy exercise routines, as well as with little knowledge on how to progress in their resistance training. Further investigations are needed to explore long-term adaptations and to assess if IVR exergaming has additional benefits compared to traditional resistance training.
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Affiliation(s)
- David Gomez
- Airway & Exercise Physiology Research Laboratory, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Jonathan D Browne
- Airway & Exercise Physiology Research Laboratory, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
- School of Medicine, California University of Science and Medicine, Colton, CA, USA
| | - Abdulrahman Almalouhi
- Airway & Exercise Physiology Research Laboratory, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
- David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Max Abundex
- Airway & Exercise Physiology Research Laboratory, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
- David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Jonathan Hu
- Airway & Exercise Physiology Research Laboratory, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Sally Nason
- Airway & Exercise Physiology Research Laboratory, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Nicholas Kull
- Airway & Exercise Physiology Research Laboratory, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Cade Mills
- Airway & Exercise Physiology Research Laboratory, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Quincy Harris
- Airway & Exercise Physiology Research Laboratory, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Richard Ku
- Airway & Exercise Physiology Research Laboratory, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Eric V Neufeld
- Airway & Exercise Physiology Research Laboratory, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hofstra University, Hempstead, NY, USA
| | - Brett A Dolezal
- Airway & Exercise Physiology Research Laboratory, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
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The Acute Post-Activation Performance Enhancement of the Bench Press Throw in Disabled Sitting Volleyball Athletes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18073818. [PMID: 33917433 PMCID: PMC8038688 DOI: 10.3390/ijerph18073818] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/03/2021] [Accepted: 04/05/2021] [Indexed: 11/24/2022]
Abstract
The purpose of the present study was to examine the acute effects of the bench press exercise with predetermined velocity loss percentage on subsequent bench press throw (BPT) performance with raised legs or feet on the floor among disabled, sitting volleyball players. Twelve elite sitting volleyball athletes (age = 33 ± 9 years; body mass = 84.7 ± 14.7 kg; relative bench press maximum strength = 1.0 ± 0.3 kg/body mass) took part in this study. The experiment was performed following a randomized crossover design, where each participant performed a single set of bench press with a 60% one-repetition maximum (1RM) to a 10% decrease of mean bar velocity as a conditioning activity (CA). The BPT with a 60%1RM was performed to assess changes in peak power (PP), peak velocity (PV) before and after the CA. The differences between analyzed variables before and after the CA were verified using two-way repeated-measures ANOVA (condition × time; 2 × 2). The ANOVA showed a significant main effect of time for peak bar velocity (p = 0.03; η2 = 0.312) and peak power output (p = 0.037; η2 = 0.294). The post hoc comparison showed a significant increase in post-CA peak bar velocity and peak power for raised legs condition in comparison with pre-CA value (p = 0.02, p = 0.041, respectively). The present study showed that the subsequent BPT performed with raised legs could be enhanced by the bench press with a 60% 1RM to a 10% mean bar velocity decrease as a CA among disabled sitting volleyball players. Therefore, athletes and coaches can consider performing a bench press throw with raised legs without compromising performance.
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9
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Nuzzo JL. Time to Reconsider Foot and Leg Position During the Bench Press. Strength Cond J 2021. [DOI: 10.1519/ssc.0000000000000562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Different Shoulder Exercises Affect the Activation of Deltoid Portions in Resistance-Trained Individuals. J Hum Kinet 2020; 75:5-14. [PMID: 33312291 PMCID: PMC7706677 DOI: 10.2478/hukin-2020-0033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
The aims of this study were to compare muscle activity of the anterior deltoid, medial deltoid, and posterior deltoid in the bench press, dumbbell fly, shoulder press, and lateral raise exercises. Thirteen men experienced in strength training volunteered for the study. Muscle activation was recorded during maximum isometric voluntary contraction (MVIC) for data normalization, and during one set of 12 repetitions with the load of 60% 1RM in all exercises proposed. One-way repeated-measures ANOVA with Bonferroni’s posthoc was applied using a 5% significance level. For anterior deltoid, the shoulder press (33.3% MVIC) presented a significantly higher level of activation when compared to other exercises. Also, no significant difference was found between the bench press (21.4% MVIC), lateral raise (21.2% MVIC), and dumbbell fly (18.8% MVIC). For the medial deltoid, the lateral raise (30.3% MVIC) and shoulder press (27.9% MVIC) presented a significantly higher level of activity than the bench press (5% MVIC) and dumbbell fly (3.4% MVIC). Besides, no significant difference was found between the bench press and the dumbbell fly. For the posterior deltoid, the lateral raise (24% MVIC) presented a significantly higher level of activation when compared to other exercises. For the posterior deltoid portion, the shoulder press (11.4% MVIC) was significantly more active than the bench press (3.5% MVIC) and dumbbell fly (2.5% MVIC). Moreover, no significant difference was found between the bench press and the dumbbell fly. In conclusion, the shoulder press and lateral raise exercises showed a higher level of muscle activation in the anterior deltoid and medial deltoid when compared to the bench press and dumbbell fly exercises.
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11
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Martín-Fuentes I, Oliva-Lozano JM, Muyor JM. Muscle Activation and Kinematic Analysis during the Inclined Leg Press Exercise in Young Females. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17228698. [PMID: 33238589 PMCID: PMC7700405 DOI: 10.3390/ijerph17228698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 11/16/2020] [Accepted: 11/20/2020] [Indexed: 11/26/2022]
Abstract
Knee joint muscle activation imbalances, especially weakness in the vastus medialis oblique, are related to patellofemoral pain within the female population. The available literature presents the leg press as an exercise which potentially targets vastus medialis oblique activation, thus reducing imbalances in the quadriceps muscles. The main aim of the present study was to compare thigh muscle activation and kinematic parameters under different conditions during the inclined leg press exercise in a young female population. A cross-sectional study was conducted on 10 young, trained females. Muscle activation of the vastus medialis oblique, vastus lateralis, rectus femoris and gluteus medialis was analyzed under five different inclined leg press conditions, modifying the feet rotation (0–45° external rotation) and the stance width (100–150% hip width) on the footplate. All the conditions were performed at two different movement velocities: controlled velocity (2″ eccentric–2″ concentric) and maximal intended velocity. Mean propulsive velocity, maximum velocity and maximum power were also assessed. The results show that both controlled velocity conditions and maximal intended velocity conditions elicited a similar muscle activation pattern with greater activation during the concentric phase (p < 0.001, ηp2 = 0.96). The maximal intended velocity conditions showed greater overall muscle activation (p < 0.001, ηp2 = 0.91). The vastus medialis oblique presented the greatest muscle activation, followed by the rectus femoris, vastus lateralis and, the gluteus medialis. Furthermore, the inclined leg press condition with 0º feet rotation, 100% hip width distance and the maximal intended velocity generated the greatest kinematic parameter outputs. In conclusion, the inclined leg press exercise might be an optimal exercise to target vastus medialis activation regardless of the feet rotation and stance width conditions.
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Affiliation(s)
- Isabel Martín-Fuentes
- Health Research Centre, University of Almería, 04120 Almería, Spain; (I.M.-F.); (J.M.O.-L.)
| | - José M. Oliva-Lozano
- Health Research Centre, University of Almería, 04120 Almería, Spain; (I.M.-F.); (J.M.O.-L.)
| | - José M. Muyor
- Health Research Centre, University of Almería, 04120 Almería, Spain; (I.M.-F.); (J.M.O.-L.)
- Laboratory of Kinesiology, Biomechanics and Ergonomics (KIBIOMER Lab.), Research Central Services, University of Almería, 04120 Almería, Spain
- Correspondence: ; Tel.: +34-950214429
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12
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Wojdala G, Golas A, Krzysztofik M, Lockie RG, Roczniok R, Zajac A, Wilk M. Impact of the "Sling Shot" Supportive Device on Upper-Body Neuromuscular Activity during the Bench Press Exercise. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E7695. [PMID: 33096856 PMCID: PMC7589754 DOI: 10.3390/ijerph17207695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 12/03/2022]
Abstract
The aim of this study was to compare the muscle activity between the sling shot assisted (SS) and control (CONT) flat barbell bench press for selected external loads of 70%, 85%, 100% one-repetition maximum (1RM). Ten resistance-trained men participated in the study (age = 22.2 ± 1.9 years, body mass = 88.7 ± 11.2 kg, body height = 179.5 ± 4.1, 1RM in the bench press = 127.25 ± 25.86 kg, and strength training experience = 6 ± 2.5 years). Evaluation of peak muscle activity of the dominant body side was carried out using surface electromyography (sEMG) recorded for the triceps brachii, pectoralis major, and anterior deltoid during each attempt. The three-way repeated measure ANOVA revealed statistically significant main interaction for condition x muscle group (p < 0.01; η2 = 0.569); load x muscle group (p < 0.01; η2 = 0.709); and condition x load (p < 0.01; η2 = 0.418). A main effect was also observed for condition (p < 0.01; η2 = 0.968); load (p < 0.01; η2 = 0.976); and muscle group (p < 0.01; η2 = 0.977). The post hoc analysis for the main effect of the condition indicated statistically significant decrease in %MVIC for the SS compared to CONT condition (74.9 vs. 88.9%MVIC; p < 0.01; ES = 0.39). The results of this study showed that using the SS significantly affects the muscle activity pattern of the flat bench press and results in its acute decrease in comparison to an equal load under CONT conditions. The SS device may be an effective tool both in rehabilitation and strength training protocols by increasing stability with a reduction of muscular activity of the prime movers.
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Affiliation(s)
- Grzegorz Wojdala
- Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education in Katowice, 40-065 Katowice, Poland; (A.G.); (M.K.); (R.R.); (A.Z.); (M.W.)
| | - Artur Golas
- Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education in Katowice, 40-065 Katowice, Poland; (A.G.); (M.K.); (R.R.); (A.Z.); (M.W.)
| | - Michal Krzysztofik
- Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education in Katowice, 40-065 Katowice, Poland; (A.G.); (M.K.); (R.R.); (A.Z.); (M.W.)
| | - Robert George Lockie
- Department of Kinesiology, California State University, Fullerton, CA 92831, USA;
| | - Robert Roczniok
- Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education in Katowice, 40-065 Katowice, Poland; (A.G.); (M.K.); (R.R.); (A.Z.); (M.W.)
| | - Adam Zajac
- Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education in Katowice, 40-065 Katowice, Poland; (A.G.); (M.K.); (R.R.); (A.Z.); (M.W.)
| | - Michal Wilk
- Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education in Katowice, 40-065 Katowice, Poland; (A.G.); (M.K.); (R.R.); (A.Z.); (M.W.)
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13
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Rodríguez-Ridao D, Antequera-Vique JA, Martín-Fuentes I, Muyor JM. Effect of Five Bench Inclinations on the Electromyographic Activity of the Pectoralis Major, Anterior Deltoid, and Triceps Brachii during the Bench Press Exercise. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17197339. [PMID: 33049982 PMCID: PMC7579505 DOI: 10.3390/ijerph17197339] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/02/2020] [Accepted: 10/05/2020] [Indexed: 11/17/2022]
Abstract
The bench press exercise is one of the most used for training and for evaluating upper-body strength. The aim of the current study was to evaluate the electromyographic (EMG) activity levels of the pectoralis major (PM) in its three portions (upper portion, PMUP, middle portion, PMMP, and lower portion, PMLP), the anterior deltoid (AD), and the triceps brachii (TB) medial head during the bench press exercise at five bench angles (0°, 15°, 30°, 45°, and 60°). Thirty trained adults participated in the study. The EMG activity of the muscles was recorded at the aforementioned inclinations at 60% of one-repetition maximum (1RM). The results showed that the maximal EMG activity for PMUP occurred at a bench inclination of 30°. PMMP and PMLP showed higher EMG activity at a 0° bench inclination. AD had the highest EMG activity at 60°. TB showed similar EMG activities at all bench inclinations. In conclusion, the horizontal bench press produces similar electromyographic activities for the pectoralis major and the anterior deltoid. An inclination of 30° produces greater activation of the upper portion of the pectoralis major. Inclinations greater than 45° produce significantly higher activation of the anterior deltoid and decrease the muscular performance of the pectoralis major.
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Affiliation(s)
- David Rodríguez-Ridao
- Health Research Centre, University of Almería, 04120 Almería, Spain; (D.R.-R.); (J.A.A.-V.); (I.M.-F.)
| | - José A. Antequera-Vique
- Health Research Centre, University of Almería, 04120 Almería, Spain; (D.R.-R.); (J.A.A.-V.); (I.M.-F.)
| | - Isabel Martín-Fuentes
- Health Research Centre, University of Almería, 04120 Almería, Spain; (D.R.-R.); (J.A.A.-V.); (I.M.-F.)
| | - José M. Muyor
- Health Research Centre, University of Almería, 04120 Almería, Spain; (D.R.-R.); (J.A.A.-V.); (I.M.-F.)
- Laboratory of Kinesiology, Biomechanics and Ergonomics (KIBIOMER Lab.), Research Central Services, University of Almería, 04120 Almería, Spain
- Correspondence:
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