AI Article Synopsis
- The study investigates the biomechanical differences during the take-off phase of the single-leg hop for distance (SLHD) between individuals who have undergone anterior cruciate ligament reconstruction (ACLR) and uninjured controls.
- It finds that individuals with ACLR have significantly weaker quadriceps and greater strength asymmetry but similar hop distances compared to controls.
- Important differences were noted in knee flexion, extension moments, and power between involved and uninvolved limbs, indicating a potential strategy of underloading the affected knee during the hop.
Article Abstract
Context: Although the landing phases of the single-leg hop for distance (SLHD) are commonly assessed, limited work reflects how the take-off phase influences hop performance in patients with anterior cruciate ligament reconstruction (ACLR).
Objective: To compare trunk and lower extremity biomechanics between individuals with ACLR and matched uninjured controls during take-off of the SLHD.
Design: Cross-sectional study design.
Setting: Laboratory setting.
Patients Or Other Participants: Sixteen individuals with ACLR and 18 uninjured controls.
Main Outcome Measure(s): Normalized quadriceps isokinetic torque, hop distance, and respective limb symmetry indices were collected for each participant. Sagittal and frontal kinematics and kinetics of the trunk, hip, knee, and ankle as well as vertical and horizontal ground reaction forces were recorded for loading and propulsion of the take-off phase of the SLHD.
Results: Those with ACLR had weaker quadriceps peak torque in the involved limb (P = .001) and greater strength asymmetry (P < .001) than control individuals. Normalized hop distance was not statistically different between limbs or between groups (P > .05), and hop distance symmetry was not different between groups (P > .05). During loading, the involved limb demonstrated lesser knee flexion angles (P = .030) and knee power (P = .007) than the uninvolved limb and lesser knee extension moments than the uninvolved limb (P = .001) and controls (P = .005). During propulsion, the involved limb demonstrated lesser knee extension moment (P = .027), knee power (P = .010), knee (P = .032) and ankle work (P = .032), and anterior-posterior ground reaction forces (P = .047) and greater knee (P = .016) abduction excursions than the uninvolved limb.
Conclusions: Between-limb differences in SLHD take-off suggest a knee underloading strategy in the involved limb. These results provide further evidence that distance covered during SLHD assessment can overestimate function and fail to identify compensatory biomechanical strategies.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11611365 | PMC |
| http://dx.doi.org/10.4085/1062-6050-0628.23 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Coal mining industry is one of the main source for economy of every nations, whereas safety in the underground coal mining area is still doubtful. According to some reports, there is heavy loss of life and money due to the occasional accidents in the coal mining area. Some existing researchers has been addressed this issue and approached their method.
View Article and Find Full Text PDFAn accurate estimate of length of stay is necessary to derive passage population size for birds using a migration stopover site. In this study, we used VHF tags and a Motus automated telemetry array to estimate the length of stay of 385 Western Sandpipers () migrating through two stopover sites in British Columbia, Canada (Tofino and Fraser River Estuary) over the course of seven migration periods (three northward and four southward) from 2018 to 2021. The average length of stay of Western Sandpipers at the Tofino site on the west coast of Vancouver Island varied from 2 to 6 days and was shorter than the length of stay at the Fraser River Estuary, where the average length of stay varied from 4 to 8 days.
View Article and Find Full Text PDFBio-Inspired Algorithms for Efficient Clustering and Routing in Flying Ad Hoc Networks.
Sensors (Basel)
December 2024
IT Research Institute, Chosun University, Gwangju 61452, Republic of Korea.
The high mobility and dynamic nature of unmanned aerial vehicles (UAVs) pose significant challenges to clustering and routing in flying ad hoc networks (FANETs). Traditional methods often fail to achieve stable networks with efficient resource utilization and low latency. To address these issues, we propose a hybrid bio-inspired algorithm, HMAO, combining the mountain gazelle optimizer (MGO) and the aquila optimizer (AO).
View Article and Find Full Text PDFMulti-level clustering and Prediction based energy efficient routing protocol to eliminate Hotspot problem in Wireless Sensor Networks.
Sci Rep
January 2025
Department of Computer Science & Engineering, Manipal Institute of Technology Bengaluru, Manipal Academy of Higher Education, Manipal, Karnataka, India.
Conserving energy of sensor nodes and ensuring balanced workloads among them are fundamental concerns in Wireless Sensor Network (WSN) design. Clustering strategies offer a promising avenue to minimize node energy consumption, thereby prolonging network lifespan. Nevertheless, numerous multi-hop routing protocols using clustering technique face the challenge of nodes nearer to the Base Station (BS) depleting their energy faster due to forwarding data from the entire network leading to premature node failure and network partitioning known as 'hotspot problem'.
View Article and Find Full Text PDFRevolutionizing Free-Space Optics: A Survey of Enabling Technologies, Challenges, Trends, and Prospects of Beyond 5G Free-Space Optical (FSO) Communication Systems.
Sensors (Basel)
December 2024
Instituto de Telecomunicações, University of Aveiro, 3810-193 Aveiro, Portugal.
As the demand for high-speed, low-latency communication continues to grow, free-space optical (FSO) communication has gained prominence as a promising solution for supporting the next generation of wireless networks, especially in the context of the 5G and beyond era. It offers high-speed, low-latency data transmission over long distances without the need for a physical infrastructure. However, the deployment of FSO systems faces significant challenges, such as atmospheric turbulence, weather-induced signal degradation, and alignment issues, all of which can impair performance.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!