scholarly journals Muscle Activity in Upper-Body Single-Joint Resistance Exercises with Elastic Resistance Bands vs. Free Weights

2018 ◽  
Vol 61 (1) ◽  
pp. 5-13 ◽  
Author(s):  
Ronny Bergquist ◽  
Vegard Moe Iversen ◽  
Paul J Mork ◽  
Marius Steiro Fimland
Keyword(s):  
Muscle Activity ◽  
Muscle Activation ◽  
Upper Body ◽  
Elastic Resistance ◽  
Activation Level ◽  
Joint Resistance ◽  
Resistance Exercises ◽  
Resistance Bands ◽  
Feasible Alternative ◽  
Body Resistance

Abstract Elastic resistance bands require little space, are light and portable, but their efficacy has not yet been established for several resistance exercises. The main objective of this study was to compare the muscle activation levels induced by elastic resistance bands versus conventional resistance training equipment (dumbbells) in the upper-body resistance exercises flyes and reverse flyes. The level of muscle activation was measured with surface electromyography in 29 men and women in a cross-over design where resistance loadings with elastic resistance bands and dumbbells were matched using 10-repetition maximum loadings. Elastic resistance bands induced slightly lower muscle activity in the muscles most people aim to activate during flyes and reverse flies, namely pectoralis major and deltoideus posterior, respectively. However, elastic resistance bands increased the muscle activation level substantially in perceived ancillary muscles, that is deltoideus anterior in flyes, and deltoideus medius and trapezius descendens in reverse flyes, possibly due to elastic bands being a more unstable resistance modality. Overall, the results show that elastic resistance bands can be considered a feasible alternative to dumbbells in flyes and reverse flyes.

Hypotensive Effect After Traditional Set Versus Agonist-antagonist Paired Sets For Upper-Body Resistance Exercises

2014 ◽  
Vol 46 ◽  
pp. 816-817
Author(s):  
Gabriel A. Paz ◽  
Marianna de Freitas Maia ◽  
Vicente Pinheiro Lima ◽  
Humberto Miranda
Keyword(s):  
Hypotensive Effect ◽  
Upper Body ◽  
Resistance Exercises ◽  
Body Resistance

scholarly journals Muscle Activation and Perceived Loading During Rehabilitation Exercises: Comparison of Dumbbells and Elastic Resistance

2010 ◽  
Vol 90 (4) ◽  
pp. 538-549 ◽  
Author(s):  
Lars L. Andersen ◽  
Christoffer H. Andersen ◽  
Ole S. Mortensen ◽  
Otto M. Poulsen ◽  
Inger Birthe T. Bjørnlund ◽  
...  
Keyword(s):  
Repeated Measures ◽  
Muscle Activation ◽  
Musculoskeletal Diseases ◽  
External Rotation ◽  
Emg Activity ◽  
Absolute Maximum ◽  
Maximal Voluntary Isometric Contraction ◽  
Emg Amplitude ◽  
Elastic Resistance ◽  
Resistance Exercises

BackgroundHigh-intensity resistance training plays an essential role in the prevention and rehabilitation of musculoskeletal injuries and disorders. Although resistance exercises with heavy weights yield high levels of muscle activation, the efficacy of more user-friendly forms of exercise needs to be examined.ObjectiveThe aim of this study was to investigate muscle activation and perceived loading during upper-extremity resistance exercises with dumbbells compared with elastic tubing.DesignA single-group, repeated-measures study design was used.SettingExercise evaluation was conducted in a laboratory setting.ParticipantsSixteen female workers (aged 26–55 years) without serious musculoskeletal diseases and with a mean neck and shoulder pain intensity of 7.8 on a 100-mm visual analog scale participated in the study.MeasurementsElectromyographic (EMG) activity was measured in 5 selected muscles during the exercises of lateral raise, wrist extension, and shoulder external rotation during graded loadings with dumbbells (2–7.5 kg) and elastic tubing (Thera-Band, red to silver resistance). The order of exercises and loadings was randomized for each individual. Electromyographic amplitude was normalized to the absolute maximum EMG amplitude obtained during maximal voluntary isometric contraction and exercise testing. Immediately after each set of exercise, the Borg CR10 scale was used to rate perceived loading during the exercise.ResultsResistance exercise with dumbbells as well as elastic tubing showed increasing EMG amplitude and perceived loading with increasing resistance. At the individually maximal level of resistance for each exercise—defined as the 3 repetitions maximum—normalized EMG activity of the prime muscles was not significantly different between dumbbells (59%–87%) and elastic tubing (64%–86%). Perceived loading was moderately to very strongly related to normalized EMG activity (r=.59–.92).LimitationsThe results of this study apply only for exercises performed in a controlled manner (ie, without sudden jerks or high acceleration).ConclusionsComparably high levels of muscle activation were obtained during resistance exercises with dumbbells and elastic tubing, indicating that therapists can choose either type in clinical practice. The Borg CR10 can be a useful aid in estimating intensity of individual rehabilitation protocols.

scholarly journals Muscle Activation in Traditional and Experimental Barbell Bench Press Exercise: A Potential New Tool for Fitness Maintenance

Sports ◽  
2019 ◽  
Vol 7 (10) ◽  
pp. 224
Author(s):  
Andrea Melani ◽  
Giuliana Gobbi ◽  
Daniela Galli ◽  
Cecilia Carubbi ◽  
Elena Masselli ◽  
...  
Keyword(s):  
Muscle Activity ◽  
Professional Training ◽  
Muscle Activation ◽  
Bench Press ◽  
Biceps Brachii ◽  
Elbow Flexion ◽  
Upper Body ◽  
Triceps Brachii ◽  
Extended Position ◽  
Lower Load

Background: The bench press exercise (BP) is commonly practiced in both recreational and professional training. The weight is lowered from a position where the elbows are at a 90° angle at the start and <90° at the end of eccentric phase, and then returned to the elbows extended position. In order to focus the exercise more on the triceps brachii (TB) rather than the pectoralis major (PM), the inter-handle distance (IHD) is decreased diminishing the involvement of the PM in favor of the TB. Purpose: To improve performance of the exercise by reducing force dissociation and transmitting 100% of the external load to the muscle tissue we propose a prototype of the barbell with a bar on which two sleeves are capable of sliding. The dynamic modifications of the IHD keep the elbow flexion angle constant at 90°. Results: Analysis of the inter-handle distance (IHD) signals of the upper body muscles showed a marked increase in muscle activity using the experimental barbell for the PM (19.5%) and for the biceps brachii (173%). Conclusions: The experimental barbell increased the muscle activity typical of the bench press exercise, obtaining the same training induction with a lower load and consequently preventing articular stress.

scholarly journals Muscle Mass and Training Status Do Not Affect the Maximum Number of Repetitions in Different Upper-Body Resistance Exercises

2017 ◽  
Vol 10 (1) ◽  
pp. 81-86
Author(s):  
Rodrigo Ferrari ◽  
Gabriela Kothe ◽  
Martim Bottaro ◽  
Eduardo Lusa Cadore ◽  
Luiz Fernando Martins Kruel
Keyword(s):  
Muscle Mass ◽  
Bench Press ◽  
Elbow Flexion ◽  
Upper Body ◽  
Movement Velocity ◽  
Free Weight ◽  
Significant Difference ◽  
Resistance Exercises ◽  
Body Resistance ◽  
The Relationship

Background: Data investigating the factors that influence the relationship between different percentages of one repetition maximum (1RM) and the maximum number of repetitions (RM’s) performed are scarce when the movement velocity of each repetition is controlled during the RM’s test. Objective: To evaluate the RM’s performed at 60, 75, and 90% of 1RM in 4 different upper-body free weight exercises: bench press, barbell triceps extension, unilateral dumbbell elbow flexion, unilateral bent knee dumbbell row. Method: Thirty participants, 15 trained (T) and 15 untrained (UT) men, volunteered to participate in this study and attended six separate occasions, each separated by at least 48 h. In the first three sessions, familiarization and 1RM tests were evaluated. The last three sessions were designed to assess the performance of the RM’s at 60%, 75%, and 90% 1RM. The exercise order and intensities performed in each session were randomized. Muscle action velocity for each repetition was controlled by an electronic metronome. Results: There was no significant difference between T and UT in any of the exercises at a given exercise intensity. Moreover, there was no significant difference in the number of repetitions performed when exercises with different muscle mass (i.e., bench press vs. triceps extension, and dumbbell row vs. elbow flexion) at different intensities (i.e., 60%, 75%, and 90%) were compared. Conclusion: Using the same percentage of 1RM, the participants performed a similar number of repetitions in the four free weight upper-body exercises evaluated.

scholarly journals Correspondence between laryngeal vocal fold movement and muscle activity during speech and nonspeech gestures

2004 ◽  
Vol 97 (3) ◽  
pp. 858-866 ◽  
Author(s):  
Christopher J. Poletto ◽  
Laura P. Verdun ◽  
Robert Strominger ◽  
Christy L. Ludlow
Keyword(s):  
Muscle Activity ◽  
Vocal Fold ◽  
Muscle Activation ◽  
Pearson Correlation ◽  
Statistical Significance ◽  
Correlation Coefficients ◽  
Normal Subjects ◽  
Activation Level ◽  
Posterior Cricoarytenoid ◽  
Opening And Closing

To better understand the role of each of the laryngeal muscles in producing vocal fold movement, activation of these muscles was correlated with laryngeal movement during different tasks such as sniff, cough or throat clear, and speech syllable production. Four muscles [the posterior cricoarytenoid, lateral cricoarytenoid, cricothyroid (CT), and thyroarytenoid (TA)] were recorded with bipolar hooked wire electrodes placed bilaterally in four normal subjects. A nasoendoscope was used to record vocal fold movement while simultaneously recording muscle activity. Muscle activation level was correlated with ipsilateral vocal fold angle for vocal fold opening and closing. Pearson correlation coefficients and their statistical significance were computed for each trial. Significant effects of muscle ( P ≤ 0.0005) and task ( P = 0.034) were found on the r (transformed to Fisher's Z′) values. All of the posterior cricoarytenoid recordings related significantly with vocal opening, whereas CT activity was significantly correlated with opening only during sniff. The TA and lateral cricoarytenoid activities were significantly correlated with vocal fold closing during cough. During speech, the CT and TA activity correlated with both opening and closing. Laryngeal muscle patterning to produce vocal fold movement differed across tasks; reciprocal muscle activity only occurred on cough, whereas speech and sniff often involved simultaneous contraction of muscle antagonists. In conclusion, different combinations of muscle activation are used for biomechanical control of vocal fold opening and closing movements during respiratory, airway protection, and speech tasks.

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