The Effect on the Hip Muscle Activation of the Fall Direction and Knee Position During a Fall

BACKGROUND: The effectiveness of side-sling plank (SSP) exercises on trunk and hip muscle activation in subjects with gluteus medius (Gmed) weakness is unclear. OBJECTIVE: To quantify muscle activation of the rectus abdominis (RA), external oblique (EO), erector spinae (ES), lumbar multifidus (LM), Gmed, gluteus maximus (Gmax), and tensor fasciae latae (TFL) during SSP with three different hip rotations compared to side-lying hip abduction (SHA) exercise in subjects with Gmed weakness. METHODS: Twenty-two subjects with Gmed weakness were recruited. SHA and three types of SSP exercises were performed: SSP with neutral hip (SSP-N), hip lateral rotation (SSP-L), and hip medial rotation (SSP-M). Surface electromyography was used to measure the activation of the trunk and hip muscles. RESULTS: The trunk and hip muscles activations were generally significantly higher level during three SSP than SHA. SSP-M showed significantly lower EO activation while significantly higher ES and LM activation than SSP-L. Gmed activation was significantly higher during SSP-M than during SSP-L. TFL activation was significantly lower during SSP-M than during SSP-N and SSP-L. CONCLUSIONS: SSP could be prescribed for patients who have reduced Gmed strength after injuries. Especially, SSP-M could be applied for patients who have Gmed weakness with dominant TFL.

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The Effects of the Sling Strap Height on Trunk and hip Muscle Activation During the Bridging Exercise with Sling

The Journal of Korean Physical Therapy ◽

10.18857/jkpt.2016.28.1.59 ◽

2016 ◽

Vol 28 (1) ◽

pp. 59-63 ◽

Cited By ~ 3

Author(s):

Kwang-Su Kim ◽

Hwa-Kyung Shin

Keyword(s):

Muscle Activation ◽

Hip Muscle

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Differences in Knee and Hip Adduction and Hip Muscle Activation in Runners With and Without Iliotibial Band Syndrome

PM&R ◽

10.1016/j.pmrj.2018.04.004 ◽

2018 ◽

Vol 10 (10) ◽

pp. 1032-1039 ◽

Cited By ~ 8

Author(s):

Robert L. Baker ◽

Richard B. Souza ◽

Mitchell J. Rauh ◽

Michael Fredericson ◽

Michael D. Rosenthal

Keyword(s):

Muscle Activation ◽

Iliotibial Band ◽

Iliotibial Band Syndrome ◽

Hip Muscle

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Hip-Muscle Activity in Men and Women During Resisted Side Stepping With Different Band Positions

Journal of Athletic Training ◽

10.4085/1062-6050-46-16 ◽

2018 ◽

Vol 53 (11) ◽

pp. 1071-1081 ◽

Cited By ~ 1

Author(s):

Cara L. Lewis ◽

Hanna D. Foley ◽

Theresa S. Lee ◽

Justin W. Berry

Keyword(s):

Muscle Activation ◽

Gluteus Maximus ◽

Gluteus Medius ◽

Lower Extremity Injury ◽

Band Placement ◽

Men And Women ◽

Trunk Inclination ◽

Hip Muscle ◽

Hip Abduction ◽

Few Data

ContextWeakness or decreased activation of the hip abductors and external rotators has been associated with lower extremity injury, especially in females. Resisted side stepping is commonly used to address hip weakness. Whereas multiple variations of this exercise are used clinically, few data exist regarding which variations to select.ObjectiveTo investigate differences in muscle-activation and movement patterns and determine kinematic and limb-specific differences between men and women during resisted side stepping with 3 resistive-band positions.DesignControlled laboratory study.SettingLaboratory.Patients or Other ParticipantsA total of 22 healthy adults (11 men, 11 women; age = 22.8 ± 3.0 years, height = 171.6 ± 10.7 cm, mass = 68.5 ± 11.8 kg).Intervention(s)Participants side stepped with the resistive band at 3 locations (knees, ankles, feet).Main Outcome Measure(s)We collected surface electromyography of the gluteus maximus, gluteus medius, and tensor fascia lata (TFL) for the moving and stance limbs during the concentric and eccentric phases. We also measured trunk inclination, hip and knee flexion, and hip-abduction excursion.ResultsHip-abductor activity was higher in women than in men (P ≤ .04). The pattern of TFL activity in the stance limb differed by sex. Women performed the exercise in greater forward trunk inclination (P = .009) and had greater hip excursion (P = .003). Gluteus maximus and medius activity increased when the band was moved from the knees to the ankles and from the ankles to the feet, whereas TFL activity increased only when the band was moved from the knees to the ankles. Findings were similar for both the stance and moving limbs, but the magnitudes of the changes differed.ConclusionsCompared with placing the band around the ankles, placing the band around the feet for resisted side stepping elicited more activity in the gluteal muscles without increasing TFL activity. This band placement is most appropriate when the therapeutic goal is to activate the muscles that resist hip adduction and internal rotation.

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Correspondence between the directional patterns of hip muscle activation and their mechanical action in man

Journal of Electromyography and Kinesiology ◽

10.1016/s1050-6411(96)00021-1 ◽

1997 ◽

Vol 7 (2) ◽

pp. 141-148 ◽

Cited By ~ 3

Author(s):

Marie-Hélène Dubois ◽

Uta Herrman ◽

Daniel Bourbonnais ◽

Allan M. Smith ◽

Denis Gravel

Keyword(s):

Muscle Activation ◽

Mechanical Action ◽

Hip Muscle

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Hip-Abduction Torque and Muscle Activation in People With Low Back Pain

Journal of Sport Rehabilitation ◽

10.1123/jsr.2013-0112 ◽

2015 ◽

Vol 24 (1) ◽

pp. 51-61 ◽

Cited By ~ 6

Author(s):

Mark A. Sutherlin ◽

Joseph M. Hart

Keyword(s):

Low Back Pain ◽

Back Pain ◽

Outcome Measures ◽

Repeated Measures ◽

Muscle Function ◽

Muscle Activation ◽

Low Back ◽

Hip Muscle ◽

Hip Abduction ◽

History Of

Context:Individuals with a history of low back pain (LBP) may present with decreased hip-abduction strength and increased trunk or gluteus maximus (GMax) fatigability. However, the effect of hip-abduction exercise on hip-muscle function has not been previously reported.Objective:To compare hip-abduction torque and muscle activation of the hip, thigh, and trunk between individuals with and without a history of LBP during repeated bouts of side-lying hip-abduction exercise.Design:Repeated measures.Setting:Clinical laboratory.Participants:12 individuals with a history of LBP and 12 controls.Intervention:Repeated 30-s hip-abduction contractions.Main Outcome Measures:Hip-abduction torque, normalized root-mean-squared (RMS) muscle activation, percent RMS muscle activation, and forward general linear regression.Results:Hip-abduction torque reduced in all participants as a result of exercise (1.57 ± 0.36 Nm/kg, 1.12 ± 0.36 Nm/kg; P < .001), but there were no group differences (F = 0.129, P = .723) or group-by-time interactions (F = 1.098, P = .358). All participants had increased GMax activation during the first bout of exercise (0.96 ± 1.00, 1.18 ± 1.03; P = .038). Individuals with a history of LBP had significantly greater GMax activation at multiple points during repeated exercise (P < .05) and a significantly lower percent of muscle activation for the GMax (P = .050) at the start of the third bout of exercise and for the biceps femoris (P = .039) at the end of exercise. The gluteal muscles best predicted hip-abduction torque in controls, while no consistent muscles were identified for individuals with a history of LBP.Conclusions:Hip-abduction torque decreased in all individuals after hip-abduction exercise, although individuals with a history of LBP had increased GMax activation during exercise. Gluteal muscle activity explained hip-abduction torque in healthy individuals but not in those with a history of LBP. Alterations in hip-muscle function may exist in individuals with a history of LBP.

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Trunk and hip muscle activation during yoga poses: Do sex-differences exist?

Complementary Therapies in Clinical Practice ◽

10.1016/j.ctcp.2018.03.006 ◽

2018 ◽

Vol 31 ◽

pp. 256-261 ◽

Cited By ~ 1

Author(s):

Lori A. Bolgla ◽

Leonard Amodio ◽

Kristen Archer ◽

Jillian Estes ◽

Rachelle Leung ◽

...

Keyword(s):

Sex Differences ◽

Muscle Activation ◽

Hip Muscle

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Torso and Hip Muscle Activity and Resulting Spine Load and Stability while Using the ProFitter 3-D Cross Trainer

Journal of Applied Biomechanics ◽

10.1123/jab.25.1.73 ◽

2009 ◽

Vol 25 (1) ◽

pp. 73-84 ◽

Cited By ~ 2

Author(s):

Priyanka Banerjee ◽

Stephen H.M Brown ◽

Samuel J. Howarth ◽

Stuart M. McGill

Keyword(s):

Muscle Activity ◽

Muscle Activation ◽

Clinical Decision Making ◽

Dynamic Balance ◽

Gluteus Medius ◽

Clinical Decision ◽

Whole Body ◽

Motor Patterns ◽

Hip Muscle ◽

Spine Mechanics

The ProFitter 3-D Cross Trainer is a labile surface device used in the clinic and claimed to train spine stability. The purpose of this study was to quantify the spine mechanics (compression and shear forces and stability), together with muscle activation mechanics (surface electromyography) of the torso and hip, during three ProFitter exercises. Trunk muscle activity was relatively low while exercising on the device (<25%MVC). Gluteus medius activity was phasic with the horizontal sliding position, especially for an experienced participant. Sufficient spinal stability was achieved in all three exercise conditions. Peak spinal compression values were below 3400 N (maximum 3188 N) and peak shear values were correspondingly low (under 500 N). The exercises challenge whole-body dynamic balance while producing very conservative spine loads. The motion simultaneously integrates hip and torso muscles in a way that appears to ensure stabilizing motor patterns in the spine. This information will assist with clinical decision making about the utility of the device and exercise technique in rehabilitation and training programs.

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