Comparison of shoulder resultant net moment between three different exercises and load conditions

Toledo, Joelly Mahnic de; Ribeiro, Daniel Cury; Castro, Marcelo Peduzzi de; Forte, Felipe C.; Körbes, Taiana S.; Rusch, Max W.; Loss, Jefferson Fagundes

doi:10.3109/09593985.2012.699606

Cited by 8 publications

(9 citation statements)

References 21 publications

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“…In all cases, resistance provided by a 60cm gray elastic band (Theraband) was used, with the strain previously calculated by the researchers through a literature calibration procedure 21 . The subject had to reach a maximum resistance of approximately 5% of body weight at the end of their range of motion 26 determined by calibration. After performing the movements, the cables and electrodes were disconnected, the individual's skin was cleaned, and participation in the research ended.…”

Section: Methodsmentioning

confidence: 99%

Análise eletromiográfica de músculos do complexo do ombro durante exercícios de rotação externa com faixa elástica

2019

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RESUMO Na artrocinemática do ombro, o manguito rotador atua estabilizando a cabeça umeral em contato com a cavidade glenoidal, enquanto realiza a translação inferior para contrabalancear a força rotacional promovida principalmente pelo deltoide. Exercícios de rotação externa (RE) vêm sendo utilizados na reabilitação de pacientes com disfunções no complexo do ombro buscando restaurar a artrocinemática. Porém, poucos estudos abordam a utilização da faixa elástica e a avaliação dos músculos da cintura escapular, determinantes para uma cinemática adequada. O objetivo deste estudo é comparar a atividade eletromiográfica (EMG) de músculos do complexo do ombro durante exercícios de rotação externa com faixa elástica. Participaram 11 sujeitos do sexo masculino que foram avaliados durante os movimentos de (1) RE em ortostase; (2) RE com abdução de ombro; (3) RE em decúbito lateral (DL). Os músculos avaliados pela EMG foram: (1) trapézio superior (TS); (2) deltoide médio (DM); (3) deltoide posterior (DP); e (4) infraespinal (IN). A resistência foi determinada por uma faixa elástica cinza calibrada com carga de 5% do peso corporal. A análise dos dados foi realizada no software Biomec-SAS e as estatísticas foram calculadas por meio da Anova de medidas repetidas no software SPSS v20.0. Pôde-se constatar que os músculos TS e DM obtiveram maior atividade EMG durante o exercício de RE com abdução de ombro, o músculo DP durante a RE com abdução de ombro e RE em decúbito lateral, enquanto o IN a obteve durante a RE em ortostase e RE em decúbito lateral.

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Section: Methodsmentioning

confidence: 99%

Análise eletromiográfica de músculos do complexo do ombro durante exercícios de rotação externa com faixa elástica

2019

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“…Thus, the shoulder abductors must exert the highest force to hold the arm in the horizontal testing position compared with the forces needed to hold the arm in the intermediate and vertical testing positions. For example, holding the unloaded arm in the horizontal position requires about 10 Nm of torque compared with the 5 Nm of torque at the vertical position [9]. A previous study also reported that subjects overestimated the force needed to move the limb to the target position [24].…”

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confidence: 95%

A 200-m All-out Front-crawl Swim Modifies Competitive Swimmers’ Shoulder Joint Position Sense

et al. 2015

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We tested the hypothesis that an all-out-effort 200-m front-crawl swim trial affects competitive swimmers' shoulder joint position sense. On Day 1, we measured shoulder joint position sense before and after the swim trial, and on Day 2 before and after 2 min of seated rest. On both days, shoulder joint position sense was measured in the seated position using electromagnetic movement sensors in a position-matching paradigm. An investigator abducted participants' left (reference) shoulder joint in the frontal plane to test angles of 90°, 135°, and 180°. Participants then actively abducted the right (indicator) shoulder joint to match the position of the left, reference arm. After the 200-m all-out front-crawl swim trial, the indicator relative to the reference angle differed by 4.4° toward adduction at the 180° (vertical) testing position (P<0.05). Variation in absolute matching error was 3.2° or 2.2 times greater after swim compared with the no-swim control trial. An all-out 200-m front-crawl swim trial can selectively increase competitive swimmers' shoulder joint position sense error and increase variation in matching error in horizontal arm position.

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“…A previous analysis of the range of motion (RoM) and peak torque in the shoulder during external rotation exercises, performed with a cable pulley machine or with a variable resistance machine, found that the RoM and the angle at which the peak joint torque was achieved differed between the two training devices, even though the peak torque values did not differ significantly [ 16 ]. Furthermore, the resultant peak moments occurred at different angles when the exercises were performed with ER compared to when the same exercises were performed either without external load or with CR achieved through the use of dumbbells [ 17 ]. Moreover, the resultant peak moments during exercises performed with ER appeared to be smaller than those achieved when exercising with dumbbells [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the resultant peak moments occurred at different angles when the exercises were performed with ER compared to when the same exercises were performed either without external load or with CR achieved through the use of dumbbells [ 17 ]. Moreover, the resultant peak moments during exercises performed with ER appeared to be smaller than those achieved when exercising with dumbbells [ 17 ]. Importantly, most previous studies examining kinetics or kinematics of the shoulder have investigated exercises other than internal or external rotation [ 17 – 20 ], and no studies have compared the three-dimensional (3D) shoulder kinetics and kinematics during internal and external rotation exercises performed with CR or with ER.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the kinematics and kinetics of shoulder exercises performed with constant and elastic resistance

Häberle

Schellenberg

List

et al. 2018

BMC Sports Sci Med Rehabil

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BackgroundInternal and external rotation exercises of the shoulder are frequently performed to avoid injury and pain. Knowledge about the motion and loadings of the upper extremities during these exercises is crucial for the development of optimal training recommendations. However, a comparison of the angles and corresponding moments in the upper extremities that are achieved during internal and external rotation exercises for the shoulder by using different resistance types has not yet been performed. Therefore, the aim of the study was to examine upper extremity kinetics and kinematics in 3D of the internal and external rotation exercises.MethodsThe kinematics and kinetics of 12 participants while they performed 10 different exercises with a constant and with an elastic external load corresponding to 2% body mass was assessed. The motion of the upper extremities was recorded three-dimensionally with a motion capture system, using a newly developed marker set and joint coordinate systems with 28 markers. The applied external load was measured with a load cell placed in series with the external resistance, and moments were calculated using an inverse dynamics approach.ResultsThe range of motion and the joint loading was highly dependent on the exercises. The range of motion in the glenohumeral joint did not differ significantly between the two resistance types, whereas internal/external rotation moments were significantly higher with constant resistance than those with elastic resistance.ConclusionsLarger or lower moments can, therefore, be achieved through selection of the appropriate resistance type, while the range of motion can be altered through the selection of exercise type. Therefore, the loading motion patterns identified in this study can help to choose suitable shoulder exercises dependent on the training objective.Electronic supplementary materialThe online version of this article (10.1186/s13102-018-0111-7) contains supplementary material, which is available to authorized users.

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Comparison of shoulder resultant net moment between three different exercises and load conditions

Cited by 8 publications

References 21 publications

Análise eletromiográfica de músculos do complexo do ombro durante exercícios de rotação externa com faixa elástica

Análise eletromiográfica de músculos do complexo do ombro durante exercícios de rotação externa com faixa elástica

A 200-m All-out Front-crawl Swim Modifies Competitive Swimmers’ Shoulder Joint Position Sense

Comparison of the kinematics and kinetics of shoulder exercises performed with constant and elastic resistance

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