Relationship between lower limb EMG activity and knee frontal plane projection angle during a single-legged drop jump

Llurda-Almuzara, Luis; Pérez‐Bellmunt, Albert; Labata-Lezáun, Noé; López-de-Celis, Carlos; Canet-Vintró, Max; Cadellans-Arróniz, Aïda; Moure-Romero, Lourdes; Aiguadé, Ramón

doi:10.1016/j.ptsp.2021.07.007

Cited by 12 publications

(12 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, a decrease in muscle strength was detected at the end of the eccentric phase. Luis's research revealed that when the DH exceeded a certain value, the pre-activation and stretch reflex activities of lower limb muscles were restricted by the damage prevention strategy of spinal nerve muscle control to a certain extent, so that the active contraction ability of the lower limb muscles was affected, finally leading to a decrease in vGRF, power and other indicators in the take-off phase [32]. Therefore, athletes and such college students majoring in physical education are advised to select M-SLDJ as the appropriate DH for unilateral DJ exercise when making daily arrangement for the movements of unilateral DJ so as to accurately optimize the explosive ability of lower limbs.…”

Section: Discussionmentioning

confidence: 99%

Determination of the optimal drop height for male with different exercise level in drop jump by unilateral lower limb

Liu¹,

Rui²,

Zhou³

2022

JOMH

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Determination of the optimal drop height for male with different exercise level in drop jump by unilateral lower limb

Liu¹,

Rui²,

Zhou³

2022

JOMH

View full text Add to dashboard Cite

“…At the same time, motion tape was used to fix the electrodes and reduce motion artifacts [ 24 ]. The maximum voluntary isometric contraction (MVC) test was performed on each muscle for 5 s in the following manner: prone position, knee flexion 45 degrees, extension band fixed on the back of the ankle, knee flexion action (HAM) [ 9 ]. Sit in a sitting position, bend your knees 90 degrees, fix the extension strap on the front of your ankle, and perform a knee extension (QUA) [ 9 ].…”

Section: Methodsmentioning

confidence: 99%

“…The maximum voluntary isometric contraction (MVC) test was performed on each muscle for 5 s in the following manner: prone position, knee flexion 45 degrees, extension band fixed on the back of the ankle, knee flexion action (HAM) [ 9 ]. Sit in a sitting position, bend your knees 90 degrees, fix the extension strap on the front of your ankle, and perform a knee extension (QUA) [ 9 ]. Lie prone, knees straight, stretch straps fixed on the forefoot, and perform plantar flexion (GAS) [ 25 ].…”

Section: Methodsmentioning

confidence: 99%

“…In addition, the coefficient of determination (R2) is used in parametric data to represent the amount of variation in a screening test. As described by Llurda et al, correlation strengths were classified as (0–0.3) small, (0.3–0.5) moderate, (0.5–0.7) strong and (0.7–1) very strong [ 9 ].…”

Section: Methodsmentioning

confidence: 99%

“…Recent studies have shown that muscle activity in the lower extremity is significantly correlated with knee kinematics and kinetics [ 8 , 9 ]. In a study of a drop task, Brown, T.N.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Correlation of Lower Limb Muscle Activity with Knee Joint Kinematics and Kinetics during Badminton Landing Tasks

Kim

Zhang

et al. 2022

IJERPH

View full text Add to dashboard Cite

A study on a single-leg landing task after an overhead stroke in badminton suggests that poor knee biomechanical indicators may be a risk factor for anterior cruciate ligament (ACL) injury. A preventive program targeting neuromuscular control strategies is said to alter the biomechanics of the knee joint and have a beneficial effect on reducing ACL injury. However, the relationship between muscle activity around the knee joint and knee biomechanical risk factors in the badminton landing task is unclear. The purpose of this study was to investigate the relationship between this movement pattern of muscle activity and knee kinematics and kinetics. This experiment analyzed knee muscle activity and biomechanical information in a sample of 34 badminton players (17 male, 17 female) during a badminton landing task. We assessed the relationship between the rectus femoris (RF), medial hamstring (MHAM), lateral hamstring (LHAM), medial gastrocnemius (MGAS), lateral gastrocnemius (LGAS), medial and lateral hamstring to quadriceps co-contraction ratio (MH/Q and LH/Q) with the knee flexion angle, valgus angle, extension moment, valgus moment, and proximal tibial anterior shear force. A moderate negative correlation was found between the peak knee flexion angle and electromyography (EMG) activity in LGAS (r = 0.47, p = 0.0046, R2 = 0.23, 95% CI: 0.16 to 0.70). Peak proximal tibial shear force showed strong and positive correlations with RF EMG activity (r = 0.52, p = 0.0016, R2 = 0.27, 95% CI: 0.22 to 0.73) and strong and negative correlations with MH/Q (r = 0.50, p = 0.0023, R2 = 0.25, 95% CI: 0.20 to 0.72). The knee extension moment showed moderate and positive correlations with RF EMG activity (r = 0.48, p = 0.0042, R2 = 0.23, 95% CI: 0.17 to 0.70) and strong and negative correlations with MH/Q (r = 0.57, p = 0.0004, R2 = 0.33, 95% CI: 0.29 to 0.76). The peak knee valgus moment showed strong and positive correlations with LH/Q (r = 0.55, p = 0.0007, R2 = 0.31, 95% CI: 0.26 to 0.75). Our findings suggest that there is a correlation between lower extremity muscle activity and knee kinematics and kinetics during the single-leg landing task in badminton; therefore, lower extremity muscle activity should be considered when developing rehabilitation or injury prevention programs.

show abstract

Quadriceps and gluteus medius activity during stable and unstable loading exercises in athletes. A cross‐sectional study

López‐de‐Celis,

Sánchez‐Alfonso,

Rodríguez‐Sanz

et al. 2023

Journal Orthopaedic Research

View full text Add to dashboard Cite

The aim of this study was to evaluate the muscle activation of the vastus medialis, vastus lateralis, and gluteus medius during different strength and stability exercises with a water tank compared to a sandbag. A cross‐sectional study was conducted in the Functional Anatomy Laboratory, and the sample consisted of 28 athletes. The main outcome measures were surface electromyography (dependent variable), water tank and sandbag, and exercise type (independent variables): Isometric Single Leg Stance (ISLS), One Leg Deadlift (OLDL), Front Rack Forward Lunge (FRFL), and Lateral Lunge (LL). Repeated measures ANOVA revealed a significant Group*Time interaction in gluteus medius Root Mean Square (RMS) (F=14.198, p<0.001, ŋ2=0.35), vastus lateralis RMS (F=24.374, p<0.001, ŋ2=0.47), and vastus medialis RMS (F=27.261, p<0.001, ŋ2=0.50). In the between‐group analysis, statistically significant differences were observed in gluteus medius RMS in the ISLS: 28.5±15.8 water tank and 20.8±12.6 sandbag (p<0.001, ŋ2=0.08) and OLDL: 29.7±13.3 water tank and 26.5±13.1 sandbag (p<0.001, ŋ2=0.01). In vastus lateralis in ISLS: 30.4±37.6 water tank and 19.0±26.7 sandbag (p<0.001, ŋ2=0.03). In vastus medialis in ISLS: 14.2±13.0 water tank and 7.0±5.6 sandbag (p<0.001, ŋ2=0.12), OLDL: 21.5±16.9 water tank and 15.5±10.7 sandbag (p=0.002, ŋ2=0.04), and LL: 51.8±29.6 water tank and 54.3±29.3 sandbag (p=0.017, ŋ2=0.00). These results confirm significantly greater activation of the gluteus medius and vastus medialis in the ISLS and OLDL exercises, and of the vastus lateralis in the water tank ISLS exercise. However, the vastus medialis shows greater activation in the LL exercise.This article is protected by copyright. All rights reserved.

show abstract

Relationship between lower limb EMG activity and knee frontal plane projection angle during a single-legged drop jump

Cited by 12 publications

References 38 publications

Determination of the optimal drop height for male with different exercise level in drop jump by unilateral lower limb

Determination of the optimal drop height for male with different exercise level in drop jump by unilateral lower limb

Correlation of Lower Limb Muscle Activity with Knee Joint Kinematics and Kinetics during Badminton Landing Tasks

Quadriceps and gluteus medius activity during stable and unstable loading exercises in athletes. A cross‐sectional study

Contact Info

Product

Resources

About