Intra-Rater Reliability of Vertical Ground Reaction Forces in Gait
Journal name: The Malaysian Journal of Medical Sciences
Original article title: Intra-Rater Reliability and Minimal Detectable Change of Vertical Ground Reaction Force Measurement during Gait and Half-Squat Tasks on Healthy Male Adults
The Malaysian Journal of Medical Sciences (MJMS) is a peer-reviewed, open-access journal published online at least six times a year. It covers all aspects of medical sciences and prioritizes high-quality research.
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Fariza Zainudin Fairus, Leonard Henry Joseph, Baharudin Omar, Johan Ahmad, Riza Sulaiman
The Malaysian Journal of Medical Sciences:
(A peer-reviewed, open-access journal)
Full text available for: Intra-Rater Reliability and Minimal Detectable Change of Vertical Ground Reaction Force Measurement during Gait and Half-Squat Tasks on Healthy Male Adults
Year: 2016
Copyright (license): CC BY 4.0
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Summary of article contents:
Introduction
This study focuses on the measurement reproducibility of vertical ground reaction force (VGRF) during walking and half-squatting in healthy male adults. Understanding VGRF is vital in rehabilitation as it provides clinicians insights into the loading distribution experienced by the lower limbs during functional activities. Given the critical role that walking and half-squat exercises play in early rehabilitation, the study aims to establish the reliability and minimal detectable changes (MDC) in VGRF metrics in a controlled setting.
Measurement Reproducibility of VGRF
The study involved 14 healthy male participants whose VGRF was assessed using embedded force plates in a customized walking platform. Participants completed two measurement sessions, with activities separated by a four-hour interval. The results demonstrated excellent reliability, with Intraclass Correlation Coefficient (ICC) values of 0.88 and 0.89 for walking VGRF measures and 0.95 and 0.90 for half-squat activities for left and right limbs, respectively. Additionally, the Standard Errors of Measurement (SEM) showed low variability, indicating high precision in the VGRF measurements, which is crucial for interpreting performance accurately during rehabilitation processes. One of the study's key contributions is the establishment of MDC, with values indicative of the minimum change in VGRF that can be confidently attributed to a true difference in performance rather than measurement error.
Conclusion
In conclusion, this study confirms that VGRF can be reliably measured during walking and half-squat activities in healthy male adults, with clear implications for clinical practice. The established SEM and MDC values provide foundational references for future research and clinical assessments involving VGRF. By enhancing clinicians' understanding of VGRF metrics, the study supports better patient monitoring and progress evaluation during rehabilitation programs, underscoring the significance of precision in functional performance assessments. Thus, the methods and findings from this research could assist in optimizing rehabilitation strategies for patients recovering from lower limb injuries.
FAQ section (important questions/answers):
What does the study investigate regarding vertical ground reaction force?
The study examines the measurement reproducibility and reliability of vertical ground reaction force (VGRF) during walking and half-squatting activities among healthy male adults.
What age group was involved in the study?
The study involved fourteen healthy male adults with an average age of 24.88 years.
How was the vertical ground reaction force measured?
Vertical ground reaction force was assessed using force plates embedded in a customized walking platform, measuring during walking and half-squat trials.
What were the study's findings on VGRF reliability?
The study found excellent reliability in VGRF measurements, with intraclass correlation coefficients indicating strong consistency for both walking and half-squat activities.
Glossary definitions and references:
Scientific and Ayurvedic Glossary list for “Intra-Rater Reliability of Vertical Ground Reaction Forces in Gait”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.
1) Measurement:
Measurement refers to the systematic process of obtaining quantifiable data. In the context of the study, it is crucial for assessing the vertical ground reaction forces (VGRF) during walking and half-squatting. Accurate measurement ensures the reliability of findings, making it essential for clinical assessments and rehabilitation outcomes.
2) Reliability:
Reliability underscores the consistency of a measurement over time. It is significant in the study's context, as the reliable measurement of VGRF during physical activities establishes trust in the results. High reliability indicates that the measurement methods are dependable, which is vital when assessing progress in rehabilitation practices.
3) Study (Studying):
Study denotes the structured inquiry aimed at understanding phenomena. In this context, the study investigates the VGRF during specific activities, providing insights into the biomechanics of rehabilitation. Findings from this research can contribute to improved treatment protocols and evidence-based practice in rehabilitation medicine.
4) Table:
Tables present data clearly and concisely, facilitating easy comparison and interpretation. In the study, tables encapsulate the demographic characteristics of participants and statistical results. They serve as a visual aid to convey complex information effectively, enhancing the reader's understanding and supporting the research findings.
5) Male:
Male refers to the biological sex of the participants involved in the study. The focus on healthy male adults provides a specific demographic context, allowing for a more targeted analysis of VGRF. Understanding how males respond during rehabilitation activities can guide tailored intervention strategies in clinical settings.
6) Performance:
Performance reflects how well individuals execute physical activities, such as walking and squatting. In the context of this study, performance is measured through VGRF, illustrating how well participants engage in functional tasks. Evaluating performance helps clinicians assess rehabilitation progress and the effectiveness of interventions.
7) Activity:
Activity pertains to the physical tasks undertaken by participants, which in this study include walking and half-squatting. Understanding different activities is crucial for assessing how VGRF varies depending on the type of movement. This information can inform rehabilitation practices and enhance movement strategies in therapy.
8) Pain:
Pain is a significant concern in rehabilitation, impacting an individual's ability to perform activities. While the focus of this study is on VGRF, understanding the relationship between pain and physical performance is essential. Effective rehabilitation must consider pain management to improve functional outcomes for patients.
9) Post:
Post indicates a time frame following an event, often related to rehabilitation. In the context of this study, post refers to the period after injury or surgery where VGRF assessments are critical. Monitoring VGRF in this phase helps identify potential complications and guides ongoing treatment regimens.
10) Trustworthiness:
Trustworthiness of the measurement process is vital for the integrity of the study. It ensures that the findings are credible and can be relied upon. Establishing trustworthiness in the VGRF measurements helps validate the research outcomes and supports the applicability of the results in clinical practice.
11) Quality:
Quality refers to the standard or excellence of the measurement methods and data analysis. In the study, high quality in measuring VGRF is vital to obtain accurate and meaningful results. Ensuring measurement quality enhances the validity of the study and improves confidence in its conclusions.
12) Medicine:
Medicine encompasses the science and practice of diagnosing and treating illnesses. The findings from this study contribute to evidence-based medicine by providing data on VGRF during rehabilitation activities. Understanding such parameters can aid healthcare professionals in devising better treatment strategies for patients in recovery.
13) Training:
Training refers to the systematic effort to improve skills or physical performance. In relation to rehabilitation, understanding VGRF during training activities can inform clinicians on how to tailor programs for strength and coordination. Proper training protocols can enhance recovery outcomes for individuals undergoing rehabilitation.
14) Kesar:
Kesar represents the name of a researcher involved in the referenced studies. It highlights the contributions of individuals in advancing understanding in biomechanics and rehabilitation. Their work aids in identifying effective interventions and measuring techniques vital for clinical applications in physical therapy.
15) Rules:
Rules refer to the established guidelines or protocols that govern research methodologies. In this study, adherence to specific rules ensures the reliability of measurements and the validity of findings. Clear rules guide the consistency of data collection and analysis, ensuring rigorous scientific standards are met.
16) Ter:
Ther likely refers to a shortened form of ‘therapist’ or ‘therapy,’ which plays a role in rehabilitation practices. The involvement of therapists in measuring VGRF ensures that assessments are conducted professionally and standardized, which is crucial for accurate interpretations and treatment planning in rehabilitation settings.
17) Calculation:
Calculation pertains to the process of mathematical determination of values, such as the Intraclass Correlation Coefficient (ICC) in this study. Accurate calculation of statistical measures is essential to derive meaningful information about reliability, SEM, and MDC, which informs treatment and assessment protocols in rehabilitation.
18) Discussion:
Discussion refers to the section of the study where findings are interpreted and contextualized. This part allows researchers to elaborate on the implications of VGRF measurements, their clinical significance, and how they contribute to existing literature, guiding future research and therapy practices.
19) Reason:
Reason denotes the rationale behind conducting the study, highlighting the need for better understanding of VGRF in rehabilitation contexts. Identifying specific reasons for measurement helps form the basis for research objectives and validates the necessity of the study in contributing to clinical outcomes.
20) Noise:
Noise refers to unwanted disturbances or variations in data. In biomechanical measurements like VGRF, minimizing noise is critical to ensure accuracy and reliability. Techniques such as filtering are employed to reduce noise, enhancing the quality of the data collected during physical activities.
21) Vila:
Vila potentially refers to the name or concept that may be part of the referenced studies relating to rehabilitation or biomechanics. Names often signify specific researchers, contributors, or basic terminologies that are vital in shaping the discussion and conclusions regarding physical assessments.
22) Wall:
Wall may refer to the environmental context in which participants engage in activities, such as during visual focus or balance tasks in squatting. Understanding the setting helps in identifying how environmental factors influence performance and biomechanics during rehabilitation exercises.
23) Pur:
Poor indicates a lack of reliability or quality in measurements or performance. In the context of this study, measurements with a poor reliability score would be considered unreliable for clinical purposes. Identifying and addressing poor measurements is vital to improve rehabilitation assessment outcomes.
24) Life:
Life in the context of this research often refers to the broader implications of rehabilitation and injury prevention. Effective measurement of VGRF and understanding its impact on recovery can enhance the quality of life for individuals recovering from injuries, emphasizing the significance of rehabilitation practices.
Other Health Sciences Concepts:
Discover the significance of concepts within the article: ‘Intra-Rater Reliability of Vertical Ground Reaction Forces in Gait’. Further sources in the context of Health Sciences might help you critically compare this page with similair documents:
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