Heart Rate Variability during 6-Min Walk Test in Adults Aged 40 Years and Older

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

Fersiynau electronig

Dangosydd eitem ddigidol (DOI)

  • Fernanda Correa
    Federal University of São Paulo
  • May Silveira Bianchim
    Universidade Federal de Sao Paulo
  • Aline Aquino
    Federal University of Sao Paulo
  • R L F Guerra
    Federal University of Sao Paulo
  • Victor Z Dourado
    Federal University of Sao Paulo
We evaluated age- and sex-dependent differences in heart rate variability (HRV) during the 6-min walk test (6MWT) in healthy adults. We also evaluated the intensity of the 6MWT based on HRV. 78 participants aged 40–49, 50–59, 60–69, and ≥70 years (42 females; 36 men) performed the 6MWT. Heart rate and HRV were monitored 1 min at rest and during the last 2-min of the test. The root mean square (RMSSD), instantaneous beat-to-beat variability (SD1), and long-term standard deviation (SD2) of RR intervals were calculated. The SD1 67% as the best cut-point for prediction of high-intensity exercise with 94% of sensitivity and 65% of specificity (area under the curve=0.804). We may conclude that autonomic modulation of heart rate during exercise was not dependent of age and sex. The HRV assessment during walking enables a valid estimation of exercise intensity in adults. We may therefore suggest the use of 6MWT for assessing exercise capacity and for prescribing exercises in adults aged 40 yrs and older.

Allweddeiriau

Iaith wreiddiolSaesneg
Tudalennau (o-i)111-115
CyfnodolynInternational Journal of Sports Medicine
Cyfrol34
Rhif y cyfnodolyn2
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 2 Chwef 2013
Cyhoeddwyd yn allanolIe
Gweld graff cysylltiadau