Functional capacity evaluation in subjects with early osteoarthritis of hip and/or knee; is two-day testing needed?

M W van Ittersum, H J Bieleman, M F Reneman, F G J Oosterveld, J W Groothoff, C.P. van der Schans

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

INTRODUCTION: The Work Well Functional Capacity Evaluation (WW FCE) is a two-day performance based test consisting of several work-related activities. Three lifting and carrying test items may be performed on both days. The objective of this study was to assess the need for repeated testing of these items in subjects with early osteoarthritis of the hip and/or the knee and to analyze sources of variation between the 2 days of measurement.

METHODS: A standardized WW FCE protocol was applied, including repeated testing of lifting low, lifting overhead and carrying. Differences and associations between the 2 days were calculated using paired samples t-tests, intraclass correlation coefficients (ICC) and limits of agreement (LoA). Possible sources of individual variation between the 2 days were identified by Wilcoxon signed ranks tests. Pearson correlation coefficients were calculated for differences in performances between days and differences in possible sources of variation between days.

RESULTS: Seventy-nine subjects participated in this study, their mean (SD) age was 56.6 (4.8) years, median (min-max) WOMAC (Western Ontario and McMaster Universities) index scores for pain, stiffness and physical function were 5 (0-17), 3 (0-7) and 14 (0-49), respectively. Median (min-max) SF36 physical function was 75 (5-95), and SF36 pain score was 67 (12-76). Mean performance differences ranged from -0.2 to -0.8 kg (P > 0.05). ICC's ranged from 0.75 (lifting overhead) to 0.88 (lifting low). LoA were: lifting low 8.0 kg; lifting overhead 6.5 kg; carrying 9.0 kg. Pearson's correlations were low and non-significant.

CONCLUSIONS: All three tests show acceptable two-day consistency. WW FCE testing on two consecutive days is not necessary for groups of subjects with early osteoarthritis. Individual sources of variation could not be identified.

Original languageEnglish
Pages (from-to)238-44
Number of pages7
JournalJournal of occupational rehabilitation
Volume19
Issue number3
DOIs
Publication statusPublished - Sep 2009

Keywords

  • Aged
  • Cohort Studies
  • Female
  • Health Status Indicators
  • Humans
  • Male
  • Middle Aged
  • Osteoarthritis, Hip
  • Osteoarthritis, Knee
  • Statistics as Topic
  • Time Factors
  • Work Capacity Evaluation
  • Journal Article

Cite this

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title = "Functional capacity evaluation in subjects with early osteoarthritis of hip and/or knee; is two-day testing needed?",
abstract = "INTRODUCTION: The Work Well Functional Capacity Evaluation (WW FCE) is a two-day performance based test consisting of several work-related activities. Three lifting and carrying test items may be performed on both days. The objective of this study was to assess the need for repeated testing of these items in subjects with early osteoarthritis of the hip and/or the knee and to analyze sources of variation between the 2 days of measurement.METHODS: A standardized WW FCE protocol was applied, including repeated testing of lifting low, lifting overhead and carrying. Differences and associations between the 2 days were calculated using paired samples t-tests, intraclass correlation coefficients (ICC) and limits of agreement (LoA). Possible sources of individual variation between the 2 days were identified by Wilcoxon signed ranks tests. Pearson correlation coefficients were calculated for differences in performances between days and differences in possible sources of variation between days.RESULTS: Seventy-nine subjects participated in this study, their mean (SD) age was 56.6 (4.8) years, median (min-max) WOMAC (Western Ontario and McMaster Universities) index scores for pain, stiffness and physical function were 5 (0-17), 3 (0-7) and 14 (0-49), respectively. Median (min-max) SF36 physical function was 75 (5-95), and SF36 pain score was 67 (12-76). Mean performance differences ranged from -0.2 to -0.8 kg (P > 0.05). ICC's ranged from 0.75 (lifting overhead) to 0.88 (lifting low). LoA were: lifting low 8.0 kg; lifting overhead 6.5 kg; carrying 9.0 kg. Pearson's correlations were low and non-significant.CONCLUSIONS: All three tests show acceptable two-day consistency. WW FCE testing on two consecutive days is not necessary for groups of subjects with early osteoarthritis. Individual sources of variation could not be identified.",
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author = "{van Ittersum}, {M W} and Bieleman, {H J} and Reneman, {M F} and Oosterveld, {F G J} and Groothoff, {J W} and {van der Schans}, C.P.",
year = "2009",
month = "9",
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language = "English",
volume = "19",
pages = "238--44",
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Functional capacity evaluation in subjects with early osteoarthritis of hip and/or knee; is two-day testing needed? / van Ittersum, M W; Bieleman, H J; Reneman, M F; Oosterveld, F G J; Groothoff, J W; van der Schans, C.P.

In: Journal of occupational rehabilitation, Vol. 19, No. 3, 09.2009, p. 238-44.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Functional capacity evaluation in subjects with early osteoarthritis of hip and/or knee; is two-day testing needed?

AU - van Ittersum, M W

AU - Bieleman, H J

AU - Reneman, M F

AU - Oosterveld, F G J

AU - Groothoff, J W

AU - van der Schans, C.P.

PY - 2009/9

Y1 - 2009/9

N2 - INTRODUCTION: The Work Well Functional Capacity Evaluation (WW FCE) is a two-day performance based test consisting of several work-related activities. Three lifting and carrying test items may be performed on both days. The objective of this study was to assess the need for repeated testing of these items in subjects with early osteoarthritis of the hip and/or the knee and to analyze sources of variation between the 2 days of measurement.METHODS: A standardized WW FCE protocol was applied, including repeated testing of lifting low, lifting overhead and carrying. Differences and associations between the 2 days were calculated using paired samples t-tests, intraclass correlation coefficients (ICC) and limits of agreement (LoA). Possible sources of individual variation between the 2 days were identified by Wilcoxon signed ranks tests. Pearson correlation coefficients were calculated for differences in performances between days and differences in possible sources of variation between days.RESULTS: Seventy-nine subjects participated in this study, their mean (SD) age was 56.6 (4.8) years, median (min-max) WOMAC (Western Ontario and McMaster Universities) index scores for pain, stiffness and physical function were 5 (0-17), 3 (0-7) and 14 (0-49), respectively. Median (min-max) SF36 physical function was 75 (5-95), and SF36 pain score was 67 (12-76). Mean performance differences ranged from -0.2 to -0.8 kg (P > 0.05). ICC's ranged from 0.75 (lifting overhead) to 0.88 (lifting low). LoA were: lifting low 8.0 kg; lifting overhead 6.5 kg; carrying 9.0 kg. Pearson's correlations were low and non-significant.CONCLUSIONS: All three tests show acceptable two-day consistency. WW FCE testing on two consecutive days is not necessary for groups of subjects with early osteoarthritis. Individual sources of variation could not be identified.

AB - INTRODUCTION: The Work Well Functional Capacity Evaluation (WW FCE) is a two-day performance based test consisting of several work-related activities. Three lifting and carrying test items may be performed on both days. The objective of this study was to assess the need for repeated testing of these items in subjects with early osteoarthritis of the hip and/or the knee and to analyze sources of variation between the 2 days of measurement.METHODS: A standardized WW FCE protocol was applied, including repeated testing of lifting low, lifting overhead and carrying. Differences and associations between the 2 days were calculated using paired samples t-tests, intraclass correlation coefficients (ICC) and limits of agreement (LoA). Possible sources of individual variation between the 2 days were identified by Wilcoxon signed ranks tests. Pearson correlation coefficients were calculated for differences in performances between days and differences in possible sources of variation between days.RESULTS: Seventy-nine subjects participated in this study, their mean (SD) age was 56.6 (4.8) years, median (min-max) WOMAC (Western Ontario and McMaster Universities) index scores for pain, stiffness and physical function were 5 (0-17), 3 (0-7) and 14 (0-49), respectively. Median (min-max) SF36 physical function was 75 (5-95), and SF36 pain score was 67 (12-76). Mean performance differences ranged from -0.2 to -0.8 kg (P > 0.05). ICC's ranged from 0.75 (lifting overhead) to 0.88 (lifting low). LoA were: lifting low 8.0 kg; lifting overhead 6.5 kg; carrying 9.0 kg. Pearson's correlations were low and non-significant.CONCLUSIONS: All three tests show acceptable two-day consistency. WW FCE testing on two consecutive days is not necessary for groups of subjects with early osteoarthritis. Individual sources of variation could not be identified.

KW - Aged

KW - Cohort Studies

KW - Female

KW - Health Status Indicators

KW - Humans

KW - Male

KW - Middle Aged

KW - Osteoarthritis, Hip

KW - Osteoarthritis, Knee

KW - Statistics as Topic

KW - Time Factors

KW - Work Capacity Evaluation

KW - Journal Article

U2 - 10.1007/s10926-009-9179-y

DO - 10.1007/s10926-009-9179-y

M3 - Article

VL - 19

SP - 238

EP - 244

JO - Journal of occupational rehabilitation

JF - Journal of occupational rehabilitation

SN - 1053-0487

IS - 3

ER -