Test-retest reliability of isokinetic strength and endurance tests in patients with intermittent claudication

Abstract

The objective was to determine the reliability of isokinetic strength and endurance testing in the ankle joints of patients with intermittent claudication. Twenty-three patients with peripheral artery disease (PAD) and symptoms of intermittent claudication participated in the study. Isokinetic strength and endurance testing of the ankle joint were performed in symptomatic and asymptomatic legs on 3 separate days. Intraclass coefficient correlation of peak torque (PT) and total work (TW) ranged from 0.77 to 0.92 and 0.89 to 0.96, respectively. PT and TW increased significantly and similarly in both legs from day 1 to day 2 (PT: +42 +/- 84% in the symptomatic leg and +33 +/- 51% in the asymptomatic leg, p < 0.05;TW: +38 +/- 26% in the symptomatic leg and +26 +/- 50% in the asymptomatic leg, p < 0.05). In conclusion, isokinetic strength and endurance testing in the ankle joints of patients with PAD presents reliability coefficients ranging from 0.77 to 0.96. However, strength and endurance increased between the first and the other test sessions performed on separate days, suggesting that two test sessions are necessary for the accurate evaluation of strength and endurance in patients with PAD.

Dynamometric Indicators of Fatigue From Repeated Maximal Concentric Isokinetic Plantar Flexion Contractions Are Independent of Knee Flexion Angles and Age but Differ for Males and Females

“…In this investigation, the pre-to-post change in peak isometric torque was associated with the largest typical error of measurement (coefficient of variation: 26%), with corresponding values of 10-15% for measures relating to changes in peak isokinetic power during testing. These values are similar to others reporting the reproducibility of dynamometric indicators of fatigue at the ankle joint (39).…”

Effects of whole body vibration training in patients with severe chronic obstructive pulmonary disease

“…The variable analysed in the study was the maximum moment of force of flexion and extension of the knee at low and high speeds, with the higher value of the different repetitions recorded. This isokinetic test has been widely validated and used in force evaluation, showing high inter/intra‐test correlations in different pathologies and healthy subjects . The isokinetic knee flexor and extensor testing protocol included: (i) training, consisting of a 80° range of mobility evaluation, five repetitions of 60°/s, 20‐s rest, five repetitions of 180°/s and 15‐s rest.…”

“…This isokinetic test has been widely validated and used in force evaluation, showing high inter/intra-test correlations in different pathologies and healthy subjects. [13][14][15] The isokinetic knee flexor and extensor testing protocol included: (i) training, consisting of a 80°range of mobility evaluation, five repetitions of 60°/s, 20-s rest, five repetitions of 180°/s and 15-s rest. (ii) Test consisting of two series of five repetitions of 60°/s concentric--concentric regime, alternating with two series of five repetitions of 180°/s concentric-concentric regime, each separated by resting periods of 60 s.…”

Confiabilidade das mensurações de testes isocinéticos para articulação do tornozelo

“…Sugere-se que no posicionamento supino, o voluntário pode manter-se mais estabilizado e assim evitar testes de qualidade baixa. Sete estudos 9,16,17,18,22,23,24 abordaram uma amostra com indivíduos com alguma patologia, neurológica ou ortopédica. Independente da patologia, os estudos revelaram coeficientes excelentes, com exceção do estudo de Hsu et al 22 que avaliaram 9 pacientes com hemiparesia após acidente vascular cerebral (AVC).…”

“…Os 4 estudos que observaram pacientes com outras patologias 9,16,23,24 não mostraram diferenças entre os valores de ICC, que foram altos. É importante ressaltar que predominou o posicionamento sentando e o uso de duas velocidades, uma alta e outra baixa para pacientes neurológicos.…”