Activation of the hip adductor muscles varies during a simulated weight-bearing task

Hides, Julie; Beall, Paula T.; Smith, Melinda M. Franettovich; Stanton, Warren R.; Miokovic, Tanja; Richardson, Carolyn A.

doi:10.1016/j.ptsp.2015.06.001

Cited by 12 publications

(8 citation statements)

References 20 publications

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“…After skin preparation, disposable electrodes (Blue Sensor M-00-S, Medicotest, Olstykke, Denmark) were placed along the axis of EO, IO, rectus abdominis (RA), gluteus medius (GMed), and adductor longus (ADD) with a 2 cm inter-electrode distance. The electrodes were placed above and below the rib margin for EO, this was at the lower margin of the eighth rib; 2 cm inferomedial to the superior anterior iliac spine for IO; approximately 3 cm outside the umbilicus for RA [ 24 ]; on the midpoint of the line connecting the ililac crest and the greater trochanter of the femur for GMed [ 25 , 26 ]; and approximately 4 fingerbreadths distal to the pubic tubercle over the bulk of the adductor muscles for ADD [ 27 ]. The method used for measuring IO activity in this study was previously validated and compared with muscle thickness estimated by ultrasound imaging [ 20 ].…”

Section: Methodsmentioning

confidence: 99%

A self-oblique exercise that activates the coordinated activity of abdominal and hip muscles–A pilot study

et al. 2021

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The importance of an interaction between trunk stability muscles and hip muscle function has been suggested. However, reported exercises rarely act on the trunk and hip muscles simultaneously. Here, we devised an abdominal oblique and hip muscle exercise, the Self-oblique exercise (SOE). We examined whether SOE activated abdominal and hip muscles in the supine and half-kneeling positions, compared with abdominal crunch (AC) and plank exercises; and whether participants could modulate the exercise load. Participants were 20 healthy males with some sports experience such as football and baseball on average 10.5 ± 4.0 years. Participants applied self-pressure to their right thighs using the contralateral upper limb with 40% or 70% of the maximum force in Supine SOE and Half- kneeling SOE. The following abdominal and hip muscles were measured using surface electromyography: bilateral external obliques (EO), bilateral internal obliques (IO), right rectus abdominis, right gluteus medius (GMed), and right adductor longus (ADD). All evaluated muscle groups showed significant differences between exercises (p < 0.001). Supine SOE-70% showed 80.4% maximal voluntary contraction (MVC) for left EO (p < 0.017), 61.4% MVC for right IO (p < 0.027), 24.3% MVC for GMed (p < 0.002), and 42.4% MVC for ADD (p < 0.004); these were significantly greatest among all exercises. Muscle activity during Supine SOE-70% was greater than that during Supine SOE-40%. Similarly, Half-kneeling SOE-40% promoted abdominal and hip muscle exertion, and showed more significant activity in GMed (p < 0.006) and ADD (p < 0.001) than AC and plank. SOE could activate abdominal and hip muscles depends on the pressure applied by upper limb. Also, SOE allows participants to modulate the exercise load in a self-controlled step by step manner. Modulation of the exercise load is difficult in AC or plank compared to SOE, and AC or plank cannot obtain simultaneous oblique and hip muscle activity. SOE could be practiced anywhere, in various positions, without any tools.

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Section: Methodsmentioning

confidence: 99%

A self-oblique exercise that activates the coordinated activity of abdominal and hip muscles–A pilot study

et al. 2021

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“…The RF was on the mid-point of the line joining the anterior superior iliac spine and the superior patellar pole [27]. The AM was applied midway between the pubic tubercle and the medial femoral epicondyle over the bulk of the adductor muscles [28]. Finally, the BF marker was midway between the ischial tuberosity and tibial epicondyles [29].…”

Section: Landmarks: Anthropometric Points (Ap) and Emg Electrode Atta...mentioning

confidence: 99%

Analysis of EMG Electrode Locations Using 3D Body Scanning for Digital Pattern Construction of a Smart EMG Suit

et al. 2021

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According to recent trends, smart clothing products that can receive electromyography (EMG) signals during the wearer’s muscle activity are being developed and commercialized. On the other hand, there is a lack of knowledge on the way to specify the electrode locations on the clothing pattern. Accurately located EMG electrodes in the clothing support the reliability and usefulness of the products. Moreover, a systematic process to construct anatomically validated smart clothing digitally should be performed to facilitate the application of a mass-customized manufacturing system. The current study explored the EMG measurement locations of nine muscles and analyzed them in association with various anthropometric points and even postures based on the 3D body scan data. The results suggest that several line segments of the patterns can be substituted by size-dependent equations for the electrodes in place. As a final step, a customized pattern of a smart EMG suit was developed virtually. The current study proposes a methodology to develop body-size dependent equations and patterns of a smart EMG suit with well-located electrodes using 3D scan data. These results suggest ways to produce smart EMG suits in response to impending automation and mass customization of the clothing manufacturing system.

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“…Nonetheless, the aforementioned muscle has also been found to play an important role in hip flexion, as well as internal and external rotation on limited flexion angles [12]. A study by Hides et al [3] has found the adductor magnus muscle to be involved to a greater extent in weight-bearing closed chain exercises compared to the adductor longus. Henceforth, the aforementioned types of exercise would not be beneficial in training the latter muscle.…”

Section: Introductionmentioning

confidence: 99%

“…Injuries to the groin, and especially the hip adductor muscles, occur frequently in athletes and contact sports. Extensive knowledge regarding these muscles and their variant anatomy and function is of immense importance to medical professionals and physiotherapists worldwide, as it may help devise a prevention programme (with appropriately directed exercises to strengthen these muscles) or provide adequate treatment upon injuries [3]. Henceforth, the purpose of this case report was to provide a thorough description of bilateral accessory heads of the adductor longus muscle, encountered during a routine cadaver dissection and to provide an up-to-date overview of the clinical implications pertaining to this muscle.…”

Section: Introductionmentioning

confidence: 99%

Bilateral accessory head of the adductor longus muscle: an anatomical case study

et al. 2023

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Activation of the hip adductor muscles varies during a simulated weight-bearing task

Cited by 12 publications

References 20 publications

A self-oblique exercise that activates the coordinated activity of abdominal and hip muscles–A pilot study

A self-oblique exercise that activates the coordinated activity of abdominal and hip muscles–A pilot study

Analysis of EMG Electrode Locations Using 3D Body Scanning for Digital Pattern Construction of a Smart EMG Suit

Bilateral accessory head of the adductor longus muscle: an anatomical case study

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