Article

OBJECTIVE: To investigate the strength of the relationship between ratings of
perceived exertion (RPE) and oxygen uptake (Vo(2)), heart rate, ventilation (Ve)
and power output (PO) during an arm-crank ramped exercise test to volitional
exhaustion in men and women who differed in physical status. DESIGN: Each
participant completed an arm-crank ramp exercise test to volitional exhaustion.
PO was increased by 15 W.min(-1) and 6 W.min(-1) for men and women able-bodied
participants, respectively; for the poliomyelitis participants, 9 W.min(-1) and 6
W.min(-1) increments were used for men and women, respectively. SETTING:
Laboratory facilities at a university. PARTICIPANTS: Able-bodied participants
(n=16; 9 men, 7 women) and participants with poliomyelitis (n=15, 8 men, 7 women)
volunteered for the study. MAIN OUTCOME MEASURES: Strength of the relationship
(R(2) values) between RPE and Vo(2), heart rate, Ve and PO. RESULTS: There were
significantly higher values for maximum Vo(2) and maximum PO for able-bodied men
compared with their counterparts with poliomyelitis (P<.05). However, when the
data were controlled for age, there were no significant differences in these
values (P>.05). Similar results were observed for the women who were able-bodied
as well as for the women who had poliomyelitis (P>.05). The relationships between
heart rate and RPE and Ve and RPE for able-bodied patients and patients with
poliomyelitis were similar (R(2)>.87). The relationship between Vo(2) and RPE was
stronger in the able-bodied participants compared wih the participants with
poliomyelitis, regardless of sex (P<.05). However, when the data were controlled
for age, there was no significant difference in the strength of this relationship
between able-bodied participants and those with poliomyelitis, regardless of sex
(P>.05). CONCLUSIONS: RPE is strongly related to physiologic markers of exercise
intensity during arm exercise, irrespective of sex or participant's poliomyelitis
status.
CI - Copyright 2010 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS