Kinematics, kinetics, and electromyogram of ankle during drop landing: a comparison between dominant and non-dominant limb.

The biomechanical difference between the dominant and non-dominant limb has seldom been studied during double-leg landing. The objective of this study was to evaluate the effectiveness of limb laterality on the ankle kinematics, kinetics and electromyogram (EMG) during drop landing. Sixteen healthy adults were recruited and dropped individually from platforms with three different heights (0.32 m, 0.52 m, and 0.72 m). The ground reaction force, ankle joint kinematics, and surface EMG of tibialis anterior (TA) and lateral gastrocnemius (LG) were measured in both lower extremities. Two-way analysis of variance was used to analyze the effects of laterality and dropping height. The peak angular velocities in dorsiflexion and abduction were significantly higher in the dominant ankle, whereas the pre- and post-landing EMG amplitudes of the TA were significantly higher in the non-dominant limb. Compared with the dominant side, the non-dominant ankle has a more effective protective mechanism in that excessive joint motion is restrained by greater ankle flexor activity. Compared with the non-dominant side, the dominant ankle joint is in greater injury risk during drop landing, and data measured in the dominant limb may produce more conservative conclusions for injury protection or prediction.

[1]  S. Shultz,et al.  Bilateral Asymmetries in Clinical Measures of Lower-Extremity Anatomic Characteristics , 2007, Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine.

[2]  Jill L. McNitt-Gray,et al.  Kinematics and Impulse Characteristics of Drop Landings from Three Heights , 1991 .

[3]  T. Terjesen,et al.  Femoral anteversion in normal adults. Ultrasound measurements in 50 men and 50 women. , 1992, Acta orthopaedica Scandinavica.

[4]  Yubo Fan,et al.  Biomechanical gender differences of the ankle joint during simulated half-squat parachute landing. , 2010, Aviation, space, and environmental medicine.

[5]  C. Ruff Biomechanical analyses of archaeological human skeletal samples , 1992 .

[6]  C. Denegar,et al.  Risk factors for anterior cruciate ligament injury in high school and college athletes. , 1994, Journal of athletic training.

[7]  B T Bates,et al.  Contributions of lower extremity joints to energy dissipation during landings. , 2000, Medicine and science in sports and exercise.

[8]  Irene Davis,et al.  Side-to-side differences in overuse running injury susceptibility: a retrospective study. , 2008, Human movement science.

[9]  Kara K Patterson,et al.  Association Between Gait Asymmetry and Brain Lesion Location in Stroke Patients , 2009, Stroke.

[10]  G. Macho Anthropological evaluation of left-right differences in the femur of southern African populations. , 1991, Anthropologischer Anzeiger; Bericht uber die biologisch-anthropologische Literatur.

[11]  F. Prince,et al.  Symmetry and limb dominance in able-bodied gait: a review. , 2000, Gait & posture.

[12]  Kara K. Patterson,et al.  Evaluation of gait symmetry after stroke: a comparison of current methods and recommendations for standardization. , 2010, Gait & posture.

[13]  V Wright,et al.  The knees and ankles in sport and veteran military parachutists. , 1977, Annals of the rheumatic diseases.

[14]  Julie R Steele,et al.  Parachute landing fall characteristics at three realistic vertical descent velocities. , 2007, Aviation, space, and environmental medicine.

[15]  Kash Kasturi,et al.  DESIGN AND EVALUATION OF PROTECTIVE DEVICES FOR INJURY PREVENTION DURING PARATROOPER LANDING , 2005 .

[16]  J. Mandigo,et al.  Bilateral within-subject Q angle asymmetry in young adult females and males. , 1997, Biomedical sciences instrumentation.

[17]  C Sforza,et al.  Foot asymmetry in healthy adults: Elliptic fourier analysis of standardized footprints , 1998, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[18]  P V S Lee,et al.  Effect of landing height on frontal plane kinematics, kinetics and energy dissipation at lower extremity joints. , 2009, Journal of biomechanics.

[19]  Van Der Harst,et al.  Leg kinematics and kinetics in landing from a single-leg hop for distance. A comparison between dominant and non-dominant leg. , 2007, Clinical biomechanics.

[20]  Timothy R Derrick,et al.  Shock and impact reduction in moderate and strenuous landing activities , 2008, Sports biomechanics.

[21]  M. Torry,et al.  Influences of hip external rotation strength on knee mechanics during single-leg drop landings in females. , 2008, Clinical biomechanics.

[22]  J H Challis,et al.  Visual and non‐visual control of landing movements in humans , 2001, The Journal of physiology.

[23]  H. Latimer,et al.  Bilateral asymmetry in weight and in length of human bones , 1965, The Anatomical record.

[24]  E. Wikstrom,et al.  Gender and Limb Differences in Dynamic Postural Stability During Landing , 2006, Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine.

[25]  J. Schwartz,et al.  Skeletal Biology of Past Peoples: Research Methods , 1994 .

[26]  B. Elliott,et al.  Landing in netball: effects of taping and bracing the ankle. , 1999, British journal of sports medicine.

[27]  B T Bates,et al.  Bilateral performance symmetry during drop landing: a kinetic analysis. , 1994, Medicine and science in sports and exercise.

[28]  Bilateral rearfoot asymmetry and anterior knee pain syndrome. , 2003, The Journal of orthopaedic and sports physical therapy.

[29]  M Santello,et al.  The control of timing and amplitude of EMG activity in landing movements in humans , 1998, Experimental physiology.

[30]  Eneida Yuri Suda,et al.  Influence of ankle functional instability on the ankle electromyography during landing after volleyball blocking. , 2009, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.