PMID- 12202850
OWN - NLM
STAT- MEDLINE
DCOM- 20021115
LR  - 20191106
IS  - 0883-9212 (Print)
IS  - 0883-9212 (Linking)
VI  - 22
IP  - 4
DP  - 2002 Jul-Aug
TI  - Reliability of isokinetic strength and aerobic power testing for patients with 
      chronic heart failure.
PG  - 282-9
AB  - PURPOSE: The objective of this study was to assess the reliability of testing 
      skeletal muscle strength and peak aerobic power in a clinical population of 
      patients with chronic heart failure (CHF). METHODS: Thirty-three patients with 
      CHF (New York Heart Association (NYHA) Functional Class 2.3 +/- 0.5; left 
      ventricular ejection fraction 27% +/- 7%; age 65 +/- 9 years; 28:5 male-female 
      ratio) underwent two identical series of tests (T1 and T2), 1 week apart, for 
      strength and endurance of the muscle groups responsible for knee 
      extension/flexion and elbow extension/flexion. The patients also underwent two 
      graded exercise tests on a bicycle ergometer to measure peak oxygen consumption 
      (VO(2peak)). Three months later, 18 of the patients underwent a third test (T3) 
      for each of the measures. Means were compared using MANOVA with repeated measures 
      for strength and endurance, and ANOVA with repeated measures for VO(2peak). 
      RESULTS: Combining data for all four movement patterns, the expression of 
      strength increased from T1 to T2 by 12% +/- 25% (P <.001; intraclass correlation 
      coefficient [ICC] = 0.89). Correspondingly, endurance increased by 13% +/- 23% (P 
      =.004; ICC = 0.87). Peak oxygen consumption was not significantly different (16.2 
      +/- 0.8 and 16.1 +/- 0.8 mL.kg(-1).min(-1) for T1 and T2, respectively; P =.686; 
      ICC = 0.91). There were no significant differences between T2 and T3 for strength 
      (2% +/- 17%; P =.736; ICC = 0.92) or muscle endurance (-1% +/- 15%; P =.812; ICC 
      = 0.96), but VO(2peak) decreased from 16.7 +/- 1.2 to 14.9 +/- 0.9 
      mL.kg(-1).min(-1) (-10% +/- 18%; P =.021; ICC = 0.89). CONCLUSIONS: These data 
      suggest that in a population of patients with CHF, a familiarization trial for 
      skeletal muscle strength testing is necessary. Although familiarization is not 
      required for assessing oxygen consumption as a single measurement, VO(2peak) 
      declined markedly in the 3-month period for which these patients were followed. 
      Internal consistency within patients was high for the second and third strength 
      trials and the first and second tests of VO(2peak).
FAU - Selig, Steve E
AU  - Selig SE
AD  - Centre for Rehabilitation, Exercise and Sport Science, Victoria University of 
      Technology, Melbourne, Australia. steve.selig@vu.edu.au
FAU - Carey, Michael F
AU  - Carey MF
FAU - Menzies, David G
AU  - Menzies DG
FAU - Patterson, Jeremy
AU  - Patterson J
FAU - Geerling, Ralph H
AU  - Geerling RH
FAU - Williams, Andrew D
AU  - Williams AD
FAU - Bamroongsuk, Voramont
AU  - Bamroongsuk V
FAU - Toia, Deidre
AU  - Toia D
FAU - Krum, Henry
AU  - Krum H
FAU - Hare, David L
AU  - Hare DL
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Cardiopulm Rehabil
JT  - Journal of cardiopulmonary rehabilitation
JID - 8511296
SB  - IM
MH  - Aged
MH  - Analysis of Variance
MH  - Confidence Intervals
MH  - Exercise Test
MH  - Exercise Tolerance
MH  - Female
MH  - Heart Failure/*physiopathology/rehabilitation
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Muscle, Skeletal/*physiology
MH  - *Oxygen Consumption
MH  - *Physical Endurance
MH  - Reproducibility of Results
EDAT- 2002/08/31 10:00
MHDA- 2002/11/26 04:00
CRDT- 2002/08/31 10:00
PHST- 2002/08/31 10:00 [pubmed]
PHST- 2002/11/26 04:00 [medline]
PHST- 2002/08/31 10:00 [entrez]
AID - 10.1097/00008483-200207000-00012 [doi]
PST - ppublish
SO  - J Cardiopulm Rehabil. 2002 Jul-Aug;22(4):282-9. doi: 
      10.1097/00008483-200207000-00012.