Are age-predicted equations valid in predicting maximum heart rate in individuals after stroke?
Disabil Rehabil
; : 1-7, 2023 Aug 22.
Article
in En
| MEDLINE
| ID: mdl-37606274
ABSTRACT
PURPOSE:
To investigate the validity of six age-predicted maximum heart rate (HRmax) equations after stroke. MATERIAL ANDMETHODS:
Sixty individuals (54 (12) years; 64 (69) months after stroke) were included. A Cardiopulmonary Exercise Test (CPET) performed on a treadmill obtained the HRmax. The most used age-predicted equations were investigated (1) 220-age, proposed by Fox; (2) 206.9- (0.67 × age), proposed by Gellish; (3) 208- (0.7 × age), proposed by Tanaka; (4) 216.6- (0.84 × age), proposed by Astrand; (5) 164- (0.72 × age) and (6) 200- (0.92 × age) proposed by Brawner.RESULTS:
No statistically significant agreement was found between the HRmax obtained by the CPET and the one predicted by the equations 1-5 (-0.18 ≤ 95% confidence interval ≤0.79). A significant and moderate agreement was found between the HRmax obtained by the CPET and the one predicted by equation (6) (95% CI= 0.05-0.75; Intraclass Correlation Coefficient= 0.51). Bland-Altman plots showed that equations (1-4) and (6) overestimated the HRmax. Equation (6) presented the lower mean difference.CONCLUSIONS:
The equations developed for non-disabled individuals (1-4) are not adequate to be used in individuals after a stroke. Equation (6) (Brawner) showed the best results to be used in individuals after stroke; however, it should be used cautiously.
Prediction equations for maximum heart rate (HRmax) are commonly used to prescribe aerobic exercise for individuals following a stroke.The equations developed for non-disabled individuals are not valid for use with individuals after stroke, leading to an overestimation of the HRmax.An age-predicted HRmax equation developed for individuals with coronary heart disease may provide outcomes that are more accurate for stroke survivors, but care should still be taken when using it.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Prognostic_studies
/
Risk_factors_studies
Language:
En
Journal:
Disabil Rehabil
Journal subject:
REABILITACAO
Year:
2023
Document type:
Article
Affiliation country:
Brazil
Publication country:
ENGLAND
/
ESCOCIA
/
GB
/
GREAT BRITAIN
/
INGLATERRA
/
REINO UNIDO
/
SCOTLAND
/
UK
/
UNITED KINGDOM