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Physiological responses during an incremental exercise test performed on underwater stationary bike
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Physiological responses during an incremental exercise test performed on underwater stationary bike
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Journal Article
Physiological responses during an incremental exercise test performed on underwater stationary bike
2017
Overview
Purpose
Cycling underwater is a low impact physical activity that has became popular workout due to capability to enhance physical fitness. The aim of this study was to determine the relationship between pedal cadence with heart rate (HR) and oxygen uptake (
V
O
2
) during incremental exercise test in a novel adjustable resistance bike underwater.
Methods
Fifteen participants completed three incremental cycling tests in a random order. Each test began at 50 revolutions per minute (RPM) and increased 3 RPM every minute until volitional exhaustion. The bike has the unique ability to manipulate the frontal surface area (FSA) of the blades providing three different resistance settings for the same RPM (FSA
1
= 500 cm
2
, FSA
2
= 580 cm
2
, and FSA
3
= 660 cm
2
).
Results
The findings indicated a strong linear relationship between RPM vs. %
V
O
2peak
and RPM vs. %HR
peak
in all FSA conditions (
r
= 0.98–0.99). In addition, the results showed a significant lower peak cadence for the FSA3 setting compared to the other conditions (
p
< 0.05). However, there were no differences in maximal physiological responses between all frontal area conditions.
Conclusions
Therefore, the developed exercise prescription on the novel stationary bike needs to consider the FSA of the blades due to differences found in the predictive values of
V
O
2
and HR for the same pedal cadence.
Publisher
Springer Milan,Springer Nature B.V
