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Busch A, Sarver X, Comstock K. Electromyographic analysis of shoulder-complex muscles performing overhead presses with dumbbell, kettlebell, and bottom-up kettlebell. J Bodyw Mov Ther 2024; 37:308-314. [PMID: 38432822 DOI: 10.1016/j.jbmt.2023.10.001] [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: 02/24/2023] [Revised: 09/12/2023] [Accepted: 10/03/2023] [Indexed: 03/05/2024]
Abstract
INTRODUCTION Kettlebell exercises, specifically the bottom-up grip, have become increasingly popular in training programs. The purpose of this research was to determine if a bottom-up kettlebell grip favorably alters the electromyography (EMG), activity in the medial deltoid (MD), serratus anterior (SA), and lower trapezius (LT), muscles compared to using a dumbbell or traditional kettlebell grip during overhead shoulder presses. METHODS Twenty-eight healthy, male, Division III collegiate baseball players (mean age = 19.8 ± 1.28 years) performed five overhead presses of equal weight, 11.34 kg (25 lbs), using a dumbbell (DB), kettlebell w/traditional grip (KB), and kettlebell held with a bottom-up grip (KBU). RESULTS For the MD, there was significantly greater EMG activity using the DB compared to KBU, but no significant differences between the DB and KB, or KB and KBU. For the SA, greater EMG activity was noted using the KBU compared to KB, and KBU compared to DB, but no differences between KB and DB. For the LT, greater EMG activity was noted using the DB compared to KB, but no differences between DB and KBU, or KB and KBU. CONCLUSION The KBU press only elicited greater EMG activity in the SA. The DB elicited greater EMG activity in both the MD and LT. Shoulder-complex EMG activity varies with different types of overhead presses using equivalent loads.
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Affiliation(s)
- Andrew Busch
- Department of Health and Human Kinetics, Ohio Wesleyan University, Delaware, OH, USA.
| | - Xavier Sarver
- Department of Health and Human Kinetics, Ohio Wesleyan University, Delaware, OH, USA
| | - Katie Comstock
- Department of Health and Human Kinetics, Ohio Wesleyan University, Delaware, OH, USA
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Błażkiewicz M, Hadamus A. The Effect of the Weight and Type of Equipment on Shoulder and Back Muscle Activity in Surface Electromyography during the Overhead Press-Preliminary Report. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22249762. [PMID: 36560129 PMCID: PMC9781216 DOI: 10.3390/s22249762] [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: 10/18/2022] [Revised: 12/01/2022] [Accepted: 12/10/2022] [Indexed: 05/14/2023]
Abstract
The overhead press is a multi-joint exercise that has the potential to use a high external load due to the cooperation of many muscle groups. The purpose of this study was to compare the activity of shoulder and back muscles during the overhead press with a kettlebell and a dumbbell. Surface electromyography (EMG) for the anterior and posterior deltoid, upper and lower trapezius, serratus anterior, and spinal erectors was analysed for 20 subjects. Participants performed the four trials of pressing kettlebell and dumbbell, weighted at 6 kg, and 70% of one maximum repetition (1RM) in the sitting position. Statistical analysis was performed using a non-parametric Friedman test and a post-hoc test of Dunn Bonferroni. No significant differences were found in the activation of assessed muscles when comparing dumbbell to kettlebell press trials with the same load (6 kg and 70% of 1RM). However, muscle activity of all muscles except the upper trapezius was always higher for kettlebell pressing. Different center of gravity locations in the kettlebell versus the dumbbell can increase shoulder muscle activity during the overhead press. However, more studies are required to confirm these results.
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Affiliation(s)
- Michalina Błażkiewicz
- Faculty of Rehabilitation, The Józef Piłsudski University of Physical Education in Warsaw, 00-809 Warsaw, Poland
| | - Anna Hadamus
- Department of Rehabilitation, Faculty of Dental Medicine, Medical University of Warsaw, 02-091 Warsaw, Poland
- Correspondence:
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Wang L, Qiao M, Tao H, Song X, Shao Q, Wang C, Yang H, Niu W, Chen Y. A comparison of muscle activation and concomitant intermuscular coupling of antagonist muscles among bench presses with different instability degrees in untrained men. Front Physiol 2022; 13:940719. [PMID: 36148298 PMCID: PMC9486837 DOI: 10.3389/fphys.2022.940719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/15/2022] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to analyze and compare the muscle activation and concomitant intermuscular coupling of antagonist muscles among bench presses with different instability degrees. Twenty-nine untrained male college students performed bench press exercises at an intensity of 60% 1 RM on three conditions: small unstable bench press with Smith machine (SBP), medium unstable bench press of free weight (FWBP), and large unstable bench press with increased instability by suspending the load with elastic bands (IIBP). One-way repeated measures analysis of variance was used to compare integrated EMG activity values of the biceps brachii (BB), posterior deltoid (PD), long head of the triceps brachii (TB), anterior deltoid (AD), upper portion of the pectoralis major (PM) muscles, and phase synchronization index (PSI) of BB-TB and PD-AD antagonist muscle pairs. A higher integrated EMG of BB muscle was found during bench press with a more unstable condition. IIBP showed a higher integrated EMG of prime movers (TB, AD, and PM) and stabilizing of BB than SBP and FWBP. PSI between muscle pairs of BB-TB in the gamma frequency band was higher in SBP than the other bench presses with unstable conditions, which may be related to the optimal “internal model” for antagonist muscles during bench press exercise. Therefore, IIBP training may be an effective accessory exercise to maintain a higher level of muscle activation across primary and stabilizing muscles with a lighter load for untrained men, while SBP may be a suitable bench press exercise for untrained participants who have not developed the neuromuscular adaptations necessary for correct stabilization of the elbow joint.
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Affiliation(s)
- Lejun Wang
- Sport and Health Research Center, Physical Education Department, Tongji University, Shanghai, China
- *Correspondence: Lejun Wang, ; Yiqing Chen,
| | - Minjie Qiao
- Sport and Health Research Center, Physical Education Department, Tongji University, Shanghai, China
| | - Haifeng Tao
- Sport and Health Research Center, Physical Education Department, Tongji University, Shanghai, China
| | - Xiaoqian Song
- Sport and Health Research Center, Physical Education Department, Tongji University, Shanghai, China
| | - Qineng Shao
- Sport and Health Research Center, Physical Education Department, Tongji University, Shanghai, China
- Engineering Research Center of Clinical Translational Digital Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Ce Wang
- Sport and Health Research Center, Physical Education Department, Tongji University, Shanghai, China
| | - Hua Yang
- Sport and Health Research Center, Physical Education Department, Tongji University, Shanghai, China
| | - Wenxin Niu
- School of Medicine, Tongji University, Shanghai, China
| | - Yiqing Chen
- Sport and Health Research Center, Physical Education Department, Tongji University, Shanghai, China
- *Correspondence: Lejun Wang, ; Yiqing Chen,
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Coratella G, Tornatore G, Longo S, Esposito F, Cè E. Front vs Back and Barbell vs Machine Overhead Press: An Electromyographic Analysis and Implications For Resistance Training. Front Physiol 2022; 13:825880. [PMID: 35936912 PMCID: PMC9354811 DOI: 10.3389/fphys.2022.825880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 05/24/2022] [Indexed: 11/24/2022] Open
Abstract
Overhead press is commonly performed to reinforce the muscles surrounding the shoulders. However, many overhead press variations can be executed, thus varying the stimuli to each muscle. Therefore, the current study compared the muscles excitation during overhead press performed with the barbell passing in front or behind the head or using a shoulder press machine. Eight competitive bodybuilders performed in random order front (front-BMP) or back barbell military press (back-BMP), and front (front-MSP) with neutral handgrip or back machine shoulder press (back-MSP). Normalized surface electromyographic root mean square (RMS) of anterior, medial and posterior deltoid, upper trapezius, pectoralis major and triceps brachii was recorded during both the ascending and descending phases. During the ascending phase, anterior deltoid showed greater RMS in back-BMP than back-MSP [ES: 1.42, (95% confidence interval 0.32/2.51)]. Medial deltoid showed greater RMS in back-BMP than front-BMP [ES: 3.68 (2.07/5.29)], and back-MSP [ES: 7.51 (4.73/10.29)]. Posterior deltoid showed greater RMS in back-BMP than front-BMP [ES: 9.00 (5.73/12.27)]. Pectoralis major showed greater RMS in front-BMP than back-BMP [ES: 3.11 (1.65–4.56)] and in front-MSP than back-MSP [ES: 20.52 (13.34/27.70)]. During the descending phase, anterior deltoid was more excited in back-BMP compared to front-BMP [ES: 7.66 (4.83/10.49). Medial deltoid showed greater RMS in back-BMP than front-BMP [ES: 4.56 (2.70/6.42)]. Posterior deltoid showed greater RMS in back-BMP than front-BMP [ES: 8.65 (5.50/11.80)]. Pectoralis major showed greater RMS in front-BMP than back-BMP [ES: 4.20 (2.44/5.95)]. No between-exercise difference was observed for upper trapezius. Performing back overhead press enhances the excitation of medial and posterior and partly anterior deltoid, while front overhead favors pectoralis major. Overhead press performed using barbell excites muscles more than using machine to stabilize the trajectory of the external load. Different variations of overhead press appear to provide different stimuli to the shoulder muscles and may be used accordingly during the training routine.
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Affiliation(s)
- Giuseppe Coratella
- Department of Biomedical Sciences for Health, Università Degli Studi di Milano, Milan, Italy
- *Correspondence: Giuseppe Coratella,
| | - Gianpaolo Tornatore
- Department of Biomedical Sciences for Health, Università Degli Studi di Milano, Milan, Italy
| | - Stefano Longo
- Department of Biomedical Sciences for Health, Università Degli Studi di Milano, Milan, Italy
| | - Fabio Esposito
- Department of Biomedical Sciences for Health, Università Degli Studi di Milano, Milan, Italy
- IRCSS Galeazzi Orthopedic Institute, Milan, Italy
| | - Emiliano Cè
- Department of Biomedical Sciences for Health, Università Degli Studi di Milano, Milan, Italy
- IRCSS Galeazzi Orthopedic Institute, Milan, Italy
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Murofushi K, Oshikawa T, Kaneoka K, Yamaguchi D, Hirohata K, Furuya H, Mitomo S, Akuzawa H, Yagishita K. The effect of external-focus using a paper balloon on the activity of upper limb and trunk muscles during static and dynamic tasks. ISOKINET EXERC SCI 2022. [DOI: 10.3233/ies-220029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: External focus isometric exercises using a paper balloon can change trunk muscle activation in the chest squeeze; however, it is unknown whether this method affects muscle activities in conventional exercises. OBJECTIVE: To check variations of trunk muscle activity during front plank (static task) and shoulder press (dynamic task) both with and without instruction to avoid crushing an object. METHODS: Twenty-six healthy adult males aged 19–49 were recruited. Ten trunk muscle activities were measured using surface electromyography during a front plank and dynamic shoulder press exercises, both with and without external-focus instruction. RESULTS: Adding the external-focus using the paper balloon to the front plank significantly activated 8 out of the 10 muscles. In the downward shoulder press, 5 out of 10 muscles with 50% 1 RM, 2 out of 10 muscles with 100% 1 RM were significantly activated. CONCLUSIONS: Adding external-focus instruction using paper-balloon increases trunk muscles in front plank and shoulder press while possibly improving trunk stability. Novel exercises using paper balloon may efficiently activate specific muscles without external loading thus possibly reducing the stress on the involved joints during exercise.
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Affiliation(s)
- Koji Murofushi
- Sports Science Center, Tokyo Medical and Dental University, Tokyo, Japan
| | | | - Koji Kaneoka
- Waseda Institute for Sport Sciences, Waseda University, Tokyo, Japan
| | - Daisuke Yamaguchi
- Sports Science Center, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kenji Hirohata
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hidetaka Furuya
- Department of Rehabilitation, Sonoda Third Hospital/Tokyo Medical Institute Tokyo Spine Center, Tokyo, Japan
| | - Sho Mitomo
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroshi Akuzawa
- Waseda Institute for Sport Sciences, Waseda University, Tokyo, Japan
| | - Kazuyoshi Yagishita
- Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, Tokyo, Japan
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Ghigiarelli JJ, Berrios XM, Prendergast JM, Gonzalez AM. The Viking Press. Strength Cond J 2021. [DOI: 10.1519/ssc.0000000000000604] [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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Meigh NJ, Keogh JWL, Schram B, Hing WA. Kettlebell training in clinical practice: a scoping review. BMC Sports Sci Med Rehabil 2019; 11:19. [PMID: 31497302 PMCID: PMC6719359 DOI: 10.1186/s13102-019-0130-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/24/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND A scoping review of scientific literature on the effects of kettlebell training. There are no authoritative guidelines or recommendations for using kettlebells within a primary care setting. Our review objectives were to identify the extent, range and nature of the available evidence, to report on the types of evidence currently available to inform clinical practice, to synthesise key concepts, and identify gaps in the research knowledge base. METHODS Following the PRISMA-ScR Checklist, we conducted a search of 10 electronic databases from inception to 1 February 2019. There were no exclusions in searching for publications. A single reviewer screened the literature and abstracted data from relevant publications. Articles were grouped and charted by concepts and themes relevant to primary care, and narratively synthesised. Effect sizes from longitudinal studies were identified or calculated, and randomised controlled trials assessed for methodological quality. RESULTS Eight hundred and twenty-nine records were identified to 1 February 2019. Four hundred and ninety-six were screened and 170 assessed for eligibility. Ninety-nine publications met the inclusion criteria. Effect sizes were typically trivial to small. One trial used a pragmatic hardstyle training program among healthy college-age participants. Two trials reported the effects of kettlebell training in clinical conditions. Thirty-three studies explicitly used 'hardstyle' techniques and 4 investigated kettlebell sport. Also included were 6 reviews, 22 clinical/expert opinions and 3 case reports of injury. Two reviewers independently evaluated studies using a modified Downs & Black checklist. CONCLUSIONS A small number of longitudinal studies, which are largely underpowered and of low methodological quality, provide the evidence-informed therapist with little guidance to inform the therapeutic prescription of kettlebells within primary care. Confidence in reported effects is low to very low. The strength of recommendation for kettlebell training improving measures of physical function is weak, based on the current body of literature. Further research on reported effects is warranted, with inclusion of clinical populations and investigations of musculoskeletal conditions common to primary care. There is a need for an externally valid, standardised approach to the training and testing of kettlebell interventions, which better informs the therapeutic use of kettlebells in primary care.
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Affiliation(s)
- Neil J. Meigh
- Faculty of Health Sciences and Medicine, Bond University, Institute of Health & Sport, Gold Coast, Queensland 4226 Australia
| | - Justin W. L. Keogh
- Faculty of Health Sciences and Medicine, Bond University, Institute of Health & Sport, Gold Coast, Queensland 4226 Australia
- Sports Performance Research Centre New Zealand, AUT University, Auckland, New Zealand
- Kasturba Medical College, Manipal Academy of Higher Education Mangalore, Manipal, Karnataka India
| | - Ben Schram
- Faculty of Health Sciences and Medicine, Bond University, Institute of Health & Sport, Gold Coast, Queensland 4226 Australia
| | - Wayne A. Hing
- Faculty of Health Sciences and Medicine, Bond University, Institute of Health & Sport, Gold Coast, Queensland 4226 Australia
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Optimal loads for power in older men and women using plate-loaded resistance machines. Exp Gerontol 2019; 124:110638. [DOI: 10.1016/j.exger.2019.110638] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/11/2019] [Accepted: 06/12/2019] [Indexed: 11/22/2022]
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