Cross-cultural Adaptation and Measurement Properties of the Brazilian Portuguese Version of the Victorian Institute of Sport Assessment-Patella (VISA-P) Scale

Mon, 14 Jan 2013 00:00:00 EST

Bruna Borges Wageck, Marcos de Noronha, Alexandre Dias Lopes, Ronaldo Alves da Cunha, Ricardo Hisayoshi Takahashi, Leonardo Oliveira Pena Costa

STUDY DESIGN: Clinical measurement. OBJECTIVES: To translate, adapt, and test the measurement properties of the Brazilian Portuguese version of the Victorian Institute of Sport Assessment-Patella (VISA-P) questionnaire. BACKGROUND: It is important to objectively measure symptoms and functional limitations related to patellar tendinopathy using outcome measures that have been validated in the language of the target population. Cross-cultural adaptations are also useful to enhance the understanding of the measurement properties of an assessment tool, regardless of the target language. METHODS: The VISA-P questionnaire was translated into Brazilian Portuguese, culturally adapted, and titled VISA-P Brazil. It was then administered on 2 occasions with a 24- to 48-hour interval between them, and a third time after a month of physical therapy treatment. The following measurement properties were analyzed: internal consistency, test-retest reliability, agreement, construct validity, floor and ceiling effects, and responsiveness. RESULTS: The VISA-P Brazil had high internal consistency (Cronbach α = .76; if item deleted, Cronbach α = .69-.78), excellent reliability and agreement (intraclass correlation coefficient = 0.91; 95% confidence interval: 0.85, 0.95; standard error of measurement, 5.2 points; minimal detectable change at the 90% confidence level, 12.2 points), and good construct validity (Pearson r = 0.60 compared to Lysholm). No ceiling and floor effects were detected for the VISA-P Brazil, and the responsiveness, based on 32 patients receiving physical therapy intervention for 1 month, demonstrated a large effect size of 0.97 (95% confidence interval: 0.68, 1.25). CONCLUSION: The VISA-P Brazil is a reproducible and responsive tool and can be used in clinical practice and research to assess the severity of pain and disability of patients with patellar tendinopathy.

J Orthop Sports Phys Ther 2013;43(3):163-171. Epub 14 January 2013. doi:10.2519/jospt.2013.4287

KEY WORDS: Brazil, knee, patellar tendinopathy, questionnaire, tendinopathy

Relationship Between Functional Ankle Instability and Postural Control

Fri, 24 Oct 2008 00:00:00 EST

Marcos de Noronha, Kathryn M. Refshauge, Jack Crosbie, Sharon L. Kilbreath
STUDY DESIGN: Controlled laboratory study using a cross-sectional design. OBJECTIVES: To investigate the relationship between postural control and functional ankle instability during a hop-landing task, and to investigate whether postural control is altered in people with functional ankle instability. METHODS AND MEASURES: Sixty volunteers classified by the Cumberland Ankle Instability Tool (CAIT) scores formed the external control group (CAIT score, ≥ 28, n = 31) and the instability group (CAIT score, ≤ 27 and history of at least 1 ankle sprain; n = 29). Postural control was measured with the landing test, in which participants stood on 1 lower extremity for 3 seconds on a step, then hopped down onto a force plate and regained postural stability after landing. The main outcome measurements were time to stability (TTS) after landing for ankle inversion, dorsiflexion, and summated electromyographic (EMG) signal amplitude for the tibialis anterior, soleus, and fibularis longus. The secondary outcomes were the proportion of movement in the frontal plane for hip and ankle, the variability of inversion movement prior to hopping, and the variables from ground reaction force. RESULTS: There were no associations (P > .05) between the CAIT scores and the TTS for ankle inversion (r = -0.25), dorsiflexion (r = -0.04), summated EMG (r = -0.13) and proportion of movement in the frontal plane (r = 0.005). Participants in the instability group took longer to regain stability in inversion and displayed greater inversion variability prejump than the control group (P = .05 and .009, respectively). CONCLUSIONS: Ankle inversion control is affected in people with functional ankle instability in tasks of postural control after landing from a hop.

J Orthop Sports Phys Ther. 2008;38(12):782-789, published online 24 October 2008. doi:10.2519/jospt.2008.2766

KEY WORDS: ankle injuries, ankle sprain, joint instability, postural control

Journal of Orthopaedic & Sports Physical Therapy - Marcos de Noronha, PT, PhD

Cross-cultural Adaptation and Measurement Properties of the Brazilian Portuguese Version of the Victorian Institute of Sport Assessment-Patella (VISA-P) Scale

Relationship Between Functional Ankle Instability and Postural Control