Reliability of the 2- and 6-minute walk tests in neuromuscular diseases
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Reliability of the 2- and 6-minute walk tests in neuromuscular diseases. / Knak, Kirsten Lykke; Andersen, Linda Kahr; Witting, Nanna; Vissing, John.
In: Journal of Rehabilitation Medicine, Vol. 49, No. 4, 2017, p. 362-366.Research output: Contribution to journal › Letter › Research › peer-review
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TY - JOUR
T1 - Reliability of the 2- and 6-minute walk tests in neuromuscular diseases
AU - Knak, Kirsten Lykke
AU - Andersen, Linda Kahr
AU - Witting, Nanna
AU - Vissing, John
PY - 2017
Y1 - 2017
N2 - OBJECTIVE: The 2- and 6-minute walk tests are used to evaluate walking capacity, but reliability has been sparsely investigated in patients with neuromuscular diseases. The aim of this study was to investigate the relative and absolute reliability of the 2- and 6-minute walk tests in patients with neuromuscular diseases.DESIGN: Each patient performed a 2- and a 6-minute walk test on 2 test days separated by 1-2 weeks.SUBJECTS: A total of 93 adult patients (mean age 53 years, age range 22-83 years) with 12 different neuromuscular diseases were included.RESULTS: The mean walking distance increased by 4.3 and 11.2 m (p < 0.001) in repeated 2- and 6-minute walk tests, respectively. Intraclass correlation coefficient in the 2- and 6-minute walk tests was 0.99 (p < 0.001). Standard error of measurement was 4.9 m in the 2-minute walk test and 14.0 m in the 6-minute walk test. Minimal detectable difference was 13.7 m in the 2-minute walk test and 38.8 m in the 6-minute walk test.CONCLUSION: These findings show good relative reliability of the 2- and 6-minute walk tests in patients with neuromuscular diseases. However, absolute reliability demonstrated variability in neuromuscular diseases. This should be considered when interpreting a change in walking distance.
AB - OBJECTIVE: The 2- and 6-minute walk tests are used to evaluate walking capacity, but reliability has been sparsely investigated in patients with neuromuscular diseases. The aim of this study was to investigate the relative and absolute reliability of the 2- and 6-minute walk tests in patients with neuromuscular diseases.DESIGN: Each patient performed a 2- and a 6-minute walk test on 2 test days separated by 1-2 weeks.SUBJECTS: A total of 93 adult patients (mean age 53 years, age range 22-83 years) with 12 different neuromuscular diseases were included.RESULTS: The mean walking distance increased by 4.3 and 11.2 m (p < 0.001) in repeated 2- and 6-minute walk tests, respectively. Intraclass correlation coefficient in the 2- and 6-minute walk tests was 0.99 (p < 0.001). Standard error of measurement was 4.9 m in the 2-minute walk test and 14.0 m in the 6-minute walk test. Minimal detectable difference was 13.7 m in the 2-minute walk test and 38.8 m in the 6-minute walk test.CONCLUSION: These findings show good relative reliability of the 2- and 6-minute walk tests in patients with neuromuscular diseases. However, absolute reliability demonstrated variability in neuromuscular diseases. This should be considered when interpreting a change in walking distance.
KW - Adult
KW - Aged
KW - Aged, 80 and over
KW - Exercise Test/methods
KW - Female
KW - Humans
KW - Male
KW - Middle Aged
KW - Neuromuscular Diseases/rehabilitation
KW - Reproducibility of Results
KW - Walk Test/methods
KW - Young Adult
U2 - 10.2340/16501977-2222
DO - 10.2340/16501977-2222
M3 - Letter
C2 - 28352938
VL - 49
SP - 362
EP - 366
JO - Journal of Rehabilitation Medicine
JF - Journal of Rehabilitation Medicine
SN - 1650-1977
IS - 4
ER -
ID: 195222260