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“Dynamic Trendelenburg”: Single-Leg-Squat Test for Gluteus Medius Strength
Ann L. Livengood, Mario A. DiMattia, and Tim L. Uhl
Column-editor : Carl G. Mattacola
Single-Leg Balance Training: An Intervention Tool in the Reduction of Injuries
Thomas G. Palmer
Column-editor : Patrick Sexton
Lower Extremity EMG in Male and Female College Soccer Players during Single-Leg Landing
J. Craig Garrison, Joe M. Hart, Riann M. Palmieri, D. Casey Kerrigan, and Christopher D. Ingersoll
Context:
Gender differences in muscle activity during landing have been studied as a possible contributing factor to the greater incidence of anterior cruciate ligament injuries in women.
Objective:
To compare root-mean-square (RMS) electromyography (EMG) of selected lower extremity muscles at initial contact (IC) and at peak knee internal-rotation (IR) moment in men and women during landing.
Design:
Preexperimental design static-group comparison.
Setting:
Motion-analysis laboratory.
Participants:
16 varsity college soccer players (8 men, 8 women).
Main Outcome Measures:
EMG activity of the gluteus medius, lateral hamstrings, vastus lateralis, and rectus femoris during landing.
Results:
When RMS EMG of all muscles was considered simultaneously, no significant differences were detected between genders at IC or at peak knee IR moment.
Conclusion:
Male and female college soccer players display similar relative muscle activities of the lower extremity during landing. Gender landing-control parameters might vary depending on the technique used to analyze muscle activity.
The Effects of Maturation on Measures of Asymmetry During Neuromuscular Control Tests in Elite Male Youth Soccer Players
Paul J. Read, Jon L. Oliver, Gregory D. Myer, Mark B.A. De Ste Croix, and Rhodri S. Lloyd
differences between limbs in propulsion and force absorption during single-leg jumping tasks have also been observed ( 37 ), in addition to contralateral differences in peak ground reaction forces during a deep squat exercise ( 2 ). However, only the work of Kellis et al ( 17 ) and Atkins et al ( 2 ) examined
Myoelectric Responses of Lower-Body Muscles Performing Squat and Lunge Exercise Variations Adopting Visual Feedback With a Laser Sensor
Gabriel Andrade Paz, Lohanne Almeida, Larissa Ruiz, Sabrina Casseres, Giovanna Xavier, João Lucas, Haroldo Gualter Santana, Humberto Miranda, Scott Bonnette, and Jeffrey Willardson
The 7 fundamental movement patterns are the squat, lunge, upper-body push, upper-body pull, bending, twisting, and gait patterns. 1 Of these movements, specifically the squat, single-leg squat, and forward and reverse lunge are movements often performed as activities of daily living, sports
The Influence of Injury History on Countermovement Jump Performance and Movement Strategy in Professional Soccer Players: Implications for Profiling and Rehabilitation Foci
Andy Mitchell, Craig Holding, and Matt Greig
in guiding rehabilitation than the outcome measure (eg, jump height). The potential for movement compensations 5 , 6 suggests that double-leg CMJ performance data should be interpreted cautiously when there is injury to a single limb. The single-leg CMJ test might therefore provide a more valid test
The Interruption of Rehabilitation Following Anterior Cruciate Ligament Reconstruction due to COVID-19 Restrictions: Association With Return-to-Sport Testing
William H. Suits, Olivia N. Roe, Corey M. Snyder, and Luke J. Voss
this study were: single leg hop, triple hop, single leg vertical jump, and the lower-extremity functional test (LEFT). The single leg hop, triple hop, and single leg vertical jump were assessed both for performance on each side in addition to symmetry. The single leg hop and triple hop tests are
Acute Effects of Single- Versus Double-Leg Postactivation Potentiation on Postural Balance of Older Women: An Age-Matched Controlled Study
Ilha G. Fernandes, Matheus A. Souza, Matheus L. Oliveira, Bianca Miarka, Michelle A. Barbosa, Andreia C. Queiroz, and Alexandre C. Barbosa
= 63 ± 13 kg) and single-leg PAP ( n = 55; age = 71 ± 7 years; height = 154 ± 7 cm; weight = 67 ± 13 kg). No differences were observed among baseline participants’ characteristics. The assessments, the physical examination, comprising balance analysis were performed by well-trained professionals. The
Rehabilitation Exercises for the Gluteus Medius Muscle Segments: An Electromyography Study
Damien Moore, Tania Pizzari, Jodie McClelland, and Adam I. Semciw
Gluteus medius (GMed) activity levels have been evaluated across a range of therapeutic exercises. 1 In most cases, single-leg weight-bearing exercises show greater activity levels than non-weight-bearing exercises when measured with a single-surface electrode over the middle GMed region. 1
Effect of Abdominal Electrical Muscle Stimulation Training With and Without Superimposed Voluntary Muscular Contraction on Lumbopelvic Control
Ui-Jae Hwang, Sung-Hoon Jung, Hyun-A Kim, Jun-Hee Kim, and Oh-Yun Kwon
. Measurement of LC: Single-Leg and Double-Leg Lowering Tests The single-leg and double-leg lowering tests were used to assess LC by measuring the subject’s ability to control the spine during movements of the lower limbs. 29 , 32 , 33 , 47 , 48 While in the supine position, the subject flexed the hip and knee
