ELECTROMYOGRAPHICAL ANALYSIS OF THE DELTOID BETWEEN DIFFERENT STRENGTH TRAINING EXERCISES
Journal Title: Medicina Sportiva - Year 2013, Vol 17, Issue 2
Abstract
Introduction: The neural requirement is variable between different strength exercises and the appropriate choice of exercises will influence the strength training adaptations. However, the selection of exercises that are suitable to compose a strength training program according to the level of muscular activation still has little scientific support. Aim: Compare different upper limb strength training exercises according to the electromyographic (EMG) activity of three different portions of the deltoid muscle. Methods: Eight strength trained males participated in the study. EMG signals of the anterior, medial and posterior deltoid were collected at maximal isometric voluntary contraction (MVIC) and for the following exercises at a 10 repetition maximum load: bench press, smith machine shoulder press, chest fly, reverse peck deck, free weight lateral raise, cable crossover lateral raise, incline lat pull-down and seated row. Results: The anterior deltoid was significantly more activated during the smith machine shoulder press (≈70%), bench press (≈55%) and chest fly (≈50%) than during the other exercises (p<0.05). The medial deltoid showed significantly more activation during lateral raises (≈55%), reverse peck deck (≈48%), and seated row (≈40%), while the posterior deltoid ex¬hibited significantly more activation during reverse peck deck (≈90%), incline lat pull-down (≈58%) and seated row (≈54%), than during the other exercises (p<0.05). Conclusions: According to these results, it is possible to determine which upper limb exercises are indicated for the development of the three portions of the deltoid muscle via muscle activation.
Authors and Affiliations
Cíntia Botton, Eurico Wilhelm, Cristiano Ughini, Ronei Pinto, Cláudia Lima
Keywords
Related Articles
- EP ID EP74210
- DOI -
- Views 137
- Downloads 0
INTERMITTENT HYPOXIA DOES NOT AFFECT ARTERIAL OXYGEN SATURATION AT REST DURING SHORT-TERM EXPOSURE TO SIMULATED ALTITUDES UP TO 4000 M*
Introduction: Intermittent hypoxia (IH) is assumed to prevent acute mountain sickness by inducing aspects of accli¬matization. Although several studies have considered IH for prophylaxis of acute mountain sickness, no s...
QUANTIFYING ALTITUDE RELATED OXIDATIVE STRESS BY CARBONYL PROTEINS
Introduction: In quantifying altitude related oxidative stress on a molecular level carbonylated proteins show great promise. They have been used as a biological marker to determine oxidative stress in newborns so far....
COLD WATER IMMERSION AS A POST-EXERCISE RECOVERY STRATEGY
The demands of professional sport are growing rapidly, as well as the work load at practice. Applying the right way of physical therapy in a right moment and correctly specified time is a significant problem for coaches...
EFFECTS OF CHROMIUM PICOLINATE SUPPLEMENTATION ON BODY COMPOSITION IN IN-SEASON DIVISION I INTERCOLLEGIATE FEMALE SWIMMERS
Introduction: Chromium (Cr) supplementation has received anecdotal support for enhancing body composition. With this in mind, few studies have reported the effects of Cr supplementation in female athletes during a full c...
THE FASTEST FEMALE BUTTERFLYSWIMMERS WERE YOUNGER THAN THE FASTEST MALE BUTTERFLY SWIMMERS
Introduction: The age of peak freestyle swimming speed was reported to be at ~17 years for women and ~19 years for men. However, the age of peak swimming speed for other strokes such as butterfly is not known.Objectives:...