Difference of Muscle Activity by Pelvic Tilt in Side-Lying Hip Abduction

Context: The improvement of hip joint stability can significantly impact knee and rearfoot mechanics. Individuals with pes planus have a weak abductor hallucis (AbdH), and the tibialis anterior (TA) may activate to compensate for this. As yet, no studies have applied isometric hip abduction (IHA) for hip stability during short-foot exercise (SFE). Objective: To compare the effects of IHA on the muscle activity of the AbdH, TA, peroneus longus (PL), and gluteus medius (Gmed), as well as the medial longitudinal arch (MLA) angle during sitting and standing SFE. Design: Two-way repeated analyses of variance were used to determine the statistical significance of AbdH, TA, PL, and Gmed electromyography activity, as well as the change in MLA angle. Setting: University research laboratory. Participants: Thirty-two participants with pes planus. Intervention(s): The participants performed SFE with and without isometric hip abduction in sitting and standing positions. Main Outcome Measures: Surface electromyography was used to measure the activity of the AbdH, TA, PL, and Gmed muscles, and Image J was used to measure the MLA angle. Results: Significant interactions between exercise type and position were observed in terms of the PL muscle activity and in the change in MLA angle only, while other muscles showed significant main effects. The IHA during SFE significantly increased the AbdH muscle activity, while the TA muscle activity was significantly lower. The muscle activity of Gmed and PL was significantly increased in the standing position compared with sitting, but there was no significant difference with or without IHA. The change in the MLA angle was significantly greater in SFE with IHA in a standing position than in the other SFE conditions. Conclusions: IHA may be an effective method for reducing compensatory TA activity and increasing AbdH muscle activity during SFE for individuals with pes planus.

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Hip Muscle Activity During 3 Side-Lying Hip-Strengthening Exercises in Distance Runners

Journal of Athletic Training ◽

10.4085/1062-6050-47.1.15 ◽

2012 ◽

Vol 47 (1) ◽

pp. 15-23 ◽

Cited By ~ 28

Author(s):

Joseph M. McBeth ◽

Jennifer E. Earl-Boehm ◽

Stephen C. Cobb ◽

Wendy E. Huddleston

Keyword(s):

Muscle Activity ◽

Repeated Measures ◽

External Rotation ◽

Gluteus Maximus ◽

Gluteus Medius ◽

Electromyographic Activity ◽

Maximal Voluntary Isometric Contraction ◽

Strengthening Exercises ◽

Hip Abduction ◽

Hip Strengthening

Context: Lower extremity overuse injuries are associated with gluteus medius (GMed) weakness. Understanding the activation of muscles about the hip during strengthening exercises is important for rehabilitation. Objective: To compare the electromyographic activity produced by the gluteus medius (GMed), tensor fascia latae (TFL), anterior hip flexors (AHF), and gluteus maximus (GMax) during 3 hip-strengthening exercises: hip abduction (ABD), hip abduction with external rotation (ABD-ER), and clamshell (CLAM) exercises. Design: Controlled laboratory study. Setting: Laboratory. Patients or Other Participants: Twenty healthy runners (9 men, 11 women; age = 25.45 ± 5.80 years, height = 1.71 ± 0.07 m, mass = 64.43 ± 7.75 kg) participated. Intervention(s): A weight equal to 5% body mass was affixed to the ankle for the ABD and ABD-ER exercises, and an equivalent load was affixed for the CLAM exercise. A pressure biofeedback unit was placed beneath the trunk to provide positional feedback. Main Outcome Measure(s): Surface electromyography (root mean square normalized to maximal voluntary isometric contraction) was recorded over the GMed, TFL, AHF, and GMax. Results: Three 1-way, repeated-measures analyses of variance indicated differences for muscle activity among the ABD (F3,57 = 25.903, P<.001), ABD-ER (F3,57 = 10.458, P<.001), and CLAM (F3,57 = 4.640, P=.006) exercises. For the ABD exercise, the GMed (70.1 ± 29.9%), TFL (54.3 ± 19.1%), and AHF (28.2 ± 21.5%) differed in muscle activity. The GMax (25.3 ± 24.6%) was less active than the GMed and TFL but was not different from the AHF. For the ABD-ER exercise, the TFL (70.9 ± 17.2%) was more active than the AHF (54.3 ± 24.8%), GMed (53.03 ± 28.4%), and GMax (31.7 ± 24.1 %). For the CLAM exercise, the AHF (54.2 ± 25.2%) was more active than the TFL (34.4 ± 20.1%) and GMed (32.6 ± 16.9%) but was not different from the GMax (34.2 ± 24.8%). Conclusions: The ABD exercise is preferred if targeted activation of the GMed is a goal. Activation of the other muscles in the ABD-ER and CLAM exercises exceeded that of GMed, which might indicate the exercises are less appropriate when the primary goal is the GMed activation and strengthening.

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Effect of Pelvic Compression Belt on Abdominal Muscle Activity, Pelvic Rotation and Pelvic Tilt During Active Straight Leg Raise

Physical Therapy Korea ◽

10.12674/ptk.2019.26.1.067 ◽

2019 ◽

Vol 26 (1) ◽

pp. 67-74

Author(s):

Eun-young Jo ◽

◽

Duk-hyun An

Keyword(s):

Muscle Activity ◽

Pelvic Tilt ◽

Abdominal Muscle ◽

Pelvic Rotation ◽

Straight Leg Raise

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Laterality of Gluteus Medius Muscle Activity during Hip Abduction

Rigakuryoho Kagaku ◽

10.1589/rika.31.285 ◽

2016 ◽

Vol 31 (2) ◽

pp. 285-288

Author(s):

Yujiro MASU ◽

Sayo KURASAWA ◽

Hiroyasu KOYAMA ◽

Mizuki KAWATE ◽

Yasuhiro YAMAMOTO

Keyword(s):

Muscle Activity ◽

Gluteus Medius ◽

Gluteus Medius Muscle ◽

Hip Abduction

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Effects of real-time visual biofeedback of pelvic movement on electromyographic activity of hip muscles and lateral pelvic tilt during unilateral weight-bearing and side-lying hip abduction exercises

Journal of Electromyography and Kinesiology ◽

10.1016/j.jelekin.2019.06.003 ◽

2019 ◽

Vol 48 ◽

pp. 31-36

Author(s):

Min-Hyeok Kang ◽

Soo-Yong Kim ◽

Il-Young Yu ◽

Jae-Seop Oh

Keyword(s):

Real Time ◽

Pelvic Tilt ◽

Weight Bearing ◽

Electromyographic Activity ◽

Visual Biofeedback ◽

Hip Abduction ◽

Pelvic Movement ◽

Hip Muscles

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Effects of Proprioceptive Neuromuscular Facilitation Stretching and Kinesiology Taping on Pelvic Compensation During Double-Knee Extension

Journal of Human Kinetics ◽

10.1515/hukin-2015-0108 ◽

2015 ◽

Vol 49 (1) ◽

pp. 55-64 ◽

Cited By ~ 4

Author(s):

Seung-Woong Lee ◽

Jung-Hoon Lee

Keyword(s):

Muscle Activity ◽

Pelvic Tilt ◽

Knee Extension ◽

Control Group ◽

Proprioceptive Neuromuscular Facilitation ◽

Anterior Pelvic Tilt ◽

Movement Distance ◽

Baseline Values ◽

Group Control Group ◽

Experimental Group

Abstract Shortened hamstrings are likely to restrict the anterior pelvic tilt and induce a slumped posture due to the posterior pelvic tilt. This study was conducted to compare the effects of proprioceptive neuromuscular facilitation (PNF) stretching and modified anterior pelvic tilt taping (APTT) on hamstring shortness-associated pelvic compensation while executing seated double-knee extension. Male college students (28 healthy young adults; mean age: 21.4 ± 2.1 years) with hamstring shortness were recruited as study subjects and randomly assigned to either the PNF stretching group (control group) or the APTT group (experimental group). In all the subjects, changes in the movement distance of the centre of gluteal pressure (COGP) as well as rectus abdominis (RA) and semitendinosus (SEM) muscle activities were measured during seated double-knee extension while the respective intervention method was applied. Both groups showed significant decreases in COGP distance and RA muscle activity compared with their respective baseline values (p < 0.05), however, no significant changes were observed in SEM muscle activity. We can infer that not only a direct intervention on the hamstring, such as PNF stretching, but also a modified APTT-mediated pelvic intervention may be used as a method for reducing pelvic compensation induced by hamstring shortness.

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