the hyperlordosis. To our knowledge, no published studies have been available to reveal the role of lumbar hyperlordosis on the neuromuscular function of hip and knee muscles among athletes. Therefore, it is especially important to study this during single-leg weight-bearing tasks, because it is
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Differences in Gluteal and Quadriceps Muscle Activation Among Adults With and Without Lumbar Hyperlordosis
Mohammad H. Izadi Farhadi, Foad Seidi, Hooman Minoonejad, and Abbey C. Thomas
Strength and Balance in Recreational Golfers and Non-Golfers Aged 65–79 Years in Community Settings
David A. Wilson, Simon Brown, Paul E. Muckelt, Martin B. Warner, Sandra Agyapong-Badu, Danny Glover, Andrew D. Murray, Roger A. Hawkes, and Maria Stokes
strength in older golfers and non-golfers in both sexes. Previous research on balance in older golfers has typically been limited to assessing static balance, for example, the single-leg stance test. For example, Tsang & Hui-Chan ( 2010 ) reported that older male golfers demonstrated significantly longer
Nonlinear Dynamic Measures for Evaluating Postural Control in Individuals With and Without Chronic Ankle Instability
Masafumi Terada, Megan Beard, Sara Carey, Kate Pfile, Brian Pietrosimone, Elizabeth Rullestad, Heather Whitaker, and Phillip Gribble
individuals with CAI compared with a cohort of LAS copers using center of pressure velocity (COPV). Doherty et al. ( 2015c ) found a decrease in the fractal dimension of the center of pressure (COP) path during single-leg balance tasks in a cohort of individuals with CAI compared with both LAS coper and
People With Low Back Pain Exhibit Higher Trunk Muscle Activity and Impaired Postural Control During Static and Dynamic Functional Tasks: A Cross-Sectional Study
Sara Salamat, Saeed Talebian, Nader Maroufi, Gitta Kalbassi, Davood Salamat, and Kieran O’Sullivan
-Leg Standing Subjects were asked to stand on a force platform with hands besides the body and heels were 15 cm apart. 8 This was performed with the eyes open (60 s), and eyes closed, (30 s) and repeated 3 times. Single-Leg Standing (on Painful Side) Subjects were standing as still as possible in their
Using a Mobile Application to Assess Knee Valgus in Healthy and Post-Anterior Cruciate Ligament Reconstruction Participants
Kai-Yu Ho, Brenda Benson Deaver, Tyrel Nelson, and Catherine Turner
Single-leg landing, single-leg hopping, and cutting tests have been widely used in evaluating knee function after anterior cruciate ligament reconstruction (ACLR). 1 , 2 It has also been found that females with ACLR showed greater knee valgus, 2 thereby predisposing them to increased risk of ACL
Are Physical Function and Fear of Movement Risk Factors for Patellofemoral Pain? A 2-Year Prospective Study
Marcella F. Pazzinatto, Christian J. Barton, Richard W. Willy, Amanda S. Ferreira, Fábio M. Azevedo, and Danilo de Oliveira Silva
physical function in people with PFP compared with asymptomatic people. 10 – 12 Clinically applicable physical tests, such as forward step-down and single-leg hop for distance, are widely used as a proxy of hip muscle and quadriceps muscle performance deficits, and reproduce PFP symptoms. 12 – 15
Single- Versus Double-Leg Cycling: Small Muscle Mass Exercise Improves Exercise Capacity to a Greater Extent in Older Compared With Younger Population
Toni Haddad, Angela L. Spence, Jeremiah J. Peiffer, Gregory M. Blain, Jeanick Brisswalter, and Chris R. Abbiss
, assessing the central and peripheral aerobic limitations to exercise (e.g., cardiac output and arteriovenous difference in oxygen) is often invasive, costly, and difficult to perform regularly. The use of methods such as the comparison of small (e.g., single-leg [SL] cycling) to large (e.g., double-leg [DL
Mechanisms of Anterior Cruciate Ligament Tears in Professional National Basketball Association Players: A Video Analysis
Adam J. Petway, Matthew J. Jordan, Scott Epsley, Philip Anloague, and Ernest Rimer
of injury was observed in 18/27 (66%) cases. Based on the injury sequence, 3 separate categories of injuries were determined based on the sequence of movements leading to injury and the lower limb kinematics at the point of ground contact during the time of injury: (1) single-leg casting, (2) a
Immersive Real-Time Biofeedback Optimized With Enhanced Expectancies Improves Motor Learning: A Feasibility Study
Ashley M. Williams, Jennifer A. Hogg, Jed A. Diekfuss, Samantha B. Kendall, Colton T. Jenkins, Shellie N. Acocello, Yu Liang, Dalei Wu, Gregory D. Myer, and Gary B. Wilkerson
tasks. The purpose of this pilot study was to determine the relative effectiveness of OPTIMAL-based, single-leg squat interventions to promote single-leg balance control, as indicated by reduced dual-task costs (less impairment when completed concurrently with a complex cognitive task) among individuals
Hip Musculoskeletal Conditions and Associated Factors That Influence Squat Performance: A Systematic Review
Scott W. Cheatham, Kyle R. Stull, Mike Fantigrassi, and Ian Montel
poor bilateral 16 – 20 and single-leg squat 21 – 23 performance. To date, there has been no appraisal of the evidence regarding the association of hip musculoskeletal conditions or associated factors and squat performance. Such an appraisal may help guide allied health and fitness professionals when
