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Exaggerated response of systolic blood pressure to cycle ergometer.

Kim YJ, Chun H, Kim CH - Ann Rehabil Med (2013)

Bottom Line: CE had a significantly lower maximum VO2 than TM (CE vs.The slope of increase on SBP accompanied by VO2 increase was significantly higher in CE than in TM (CE vs.Therefore, there is a possibility that CE could induce a greater burden on workloads to cardiovascular system in humans than TM.

View Article: PubMed Central - PubMed

Affiliation: Department of Rehabilitation Medicine, Inje University Sanggye Paik Hospital, Seoul, Korea.

ABSTRACT

Objective: The aim of this study is to exam the effects of exercise modes on the systolic blood pressure and rate-pressure product during a gradually increasing exercise load from low to high intensity.

Methods: Fifteen apparently healthy men aged 19 to 23 performed the graded exercise tests on cycle ergometer (CE) and treadmill (TM). During the low-to-maximal exercises, oxygen uptake (VO2), heart rate (HR), systolic blood pressure (SBP) and rate-pressure product were measured.

Results: CE had a significantly lower maximum VO2 than TM (CE vs. TM: 48.51±1.30 vs. 55.4±1.19 mL/kg/min; p<0.001). However, CE showed a higher maximum SBP (SBPmax) at the all-out exercise load than TM (CE vs. TM: 170±2.4 vs. 154±1.7 mmHg; p<0.001). During the low-to-maximal intensity increment, the slope of the HR with VO2 was the same as VO2 increased in times of the graded exercise test of CE and TM (CE vs. TM: 2.542±0.100 vs. 2.506±0.087; p=0.26). The slope of increase on SBP accompanied by VO2 increase was significantly higher in CE than in TM (CE vs. TM: 1.669±0.117 vs. 1.179±0.063; p<0.001).

Conclusion: The SBP response is stronger in CE than in TM during the graded exercise test. Therefore, there is a possibility that CE could induce a greater burden on workloads to cardiovascular system in humans than TM.

No MeSH data available.


The slope differences between cycle ergometer (CE) and treadmill (TM) exercise during the graded exercise test. (A) Slope for heart rate (HR) to oxygen uptake (VO2): HR is the y-axis and VO2 is the x-axis. (B) Slope for systolic blood pressure (SBP) to VO2: SBP is the y-axis and VO2 is the x-axis. (C) Slope of rate-pressure product (RPP) to VO2: RPP is the y-axis and VO2 is the x-axis. (D) Slope for HR to SBP: HR is the y-axis and SBP is the x-axis. All values are mean±standard error.
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Figure 3: The slope differences between cycle ergometer (CE) and treadmill (TM) exercise during the graded exercise test. (A) Slope for heart rate (HR) to oxygen uptake (VO2): HR is the y-axis and VO2 is the x-axis. (B) Slope for systolic blood pressure (SBP) to VO2: SBP is the y-axis and VO2 is the x-axis. (C) Slope of rate-pressure product (RPP) to VO2: RPP is the y-axis and VO2 is the x-axis. (D) Slope for HR to SBP: HR is the y-axis and SBP is the x-axis. All values are mean±standard error.

Mentions: The results of a slope of the line from relation of HR, SBP, and RPP with VO2 or SBP for fifteen participants (Fig. 3). While the increment of the HR-VO2 appeared to be the same as VO2 increased in times of graded exercise test of CE and TM (p=0.26), the slope of SBP increase and RPP accompanied by VO2 increase (SBP-VO2 and RPP-VO2, respectively) were all significantly higher in CE than in TM (p<0.001). On the other hand, on the standard of the HR, not VO2, for exercise load, SBP accompanied by the increase of exercise load (HR) elevated with a stiffer slope in CE than in TM (p<0.001). In the end, SBP in times of gradually increasing exercise load for CE increased relatively a lot in TM, and RPP too elevated to a high level as a result.


Exaggerated response of systolic blood pressure to cycle ergometer.

Kim YJ, Chun H, Kim CH - Ann Rehabil Med (2013)

The slope differences between cycle ergometer (CE) and treadmill (TM) exercise during the graded exercise test. (A) Slope for heart rate (HR) to oxygen uptake (VO2): HR is the y-axis and VO2 is the x-axis. (B) Slope for systolic blood pressure (SBP) to VO2: SBP is the y-axis and VO2 is the x-axis. (C) Slope of rate-pressure product (RPP) to VO2: RPP is the y-axis and VO2 is the x-axis. (D) Slope for HR to SBP: HR is the y-axis and SBP is the x-axis. All values are mean±standard error.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3713293&req=5

Figure 3: The slope differences between cycle ergometer (CE) and treadmill (TM) exercise during the graded exercise test. (A) Slope for heart rate (HR) to oxygen uptake (VO2): HR is the y-axis and VO2 is the x-axis. (B) Slope for systolic blood pressure (SBP) to VO2: SBP is the y-axis and VO2 is the x-axis. (C) Slope of rate-pressure product (RPP) to VO2: RPP is the y-axis and VO2 is the x-axis. (D) Slope for HR to SBP: HR is the y-axis and SBP is the x-axis. All values are mean±standard error.
Mentions: The results of a slope of the line from relation of HR, SBP, and RPP with VO2 or SBP for fifteen participants (Fig. 3). While the increment of the HR-VO2 appeared to be the same as VO2 increased in times of graded exercise test of CE and TM (p=0.26), the slope of SBP increase and RPP accompanied by VO2 increase (SBP-VO2 and RPP-VO2, respectively) were all significantly higher in CE than in TM (p<0.001). On the other hand, on the standard of the HR, not VO2, for exercise load, SBP accompanied by the increase of exercise load (HR) elevated with a stiffer slope in CE than in TM (p<0.001). In the end, SBP in times of gradually increasing exercise load for CE increased relatively a lot in TM, and RPP too elevated to a high level as a result.

Bottom Line: CE had a significantly lower maximum VO2 than TM (CE vs.The slope of increase on SBP accompanied by VO2 increase was significantly higher in CE than in TM (CE vs.Therefore, there is a possibility that CE could induce a greater burden on workloads to cardiovascular system in humans than TM.

View Article: PubMed Central - PubMed

Affiliation: Department of Rehabilitation Medicine, Inje University Sanggye Paik Hospital, Seoul, Korea.

ABSTRACT

Objective: The aim of this study is to exam the effects of exercise modes on the systolic blood pressure and rate-pressure product during a gradually increasing exercise load from low to high intensity.

Methods: Fifteen apparently healthy men aged 19 to 23 performed the graded exercise tests on cycle ergometer (CE) and treadmill (TM). During the low-to-maximal exercises, oxygen uptake (VO2), heart rate (HR), systolic blood pressure (SBP) and rate-pressure product were measured.

Results: CE had a significantly lower maximum VO2 than TM (CE vs. TM: 48.51±1.30 vs. 55.4±1.19 mL/kg/min; p<0.001). However, CE showed a higher maximum SBP (SBPmax) at the all-out exercise load than TM (CE vs. TM: 170±2.4 vs. 154±1.7 mmHg; p<0.001). During the low-to-maximal intensity increment, the slope of the HR with VO2 was the same as VO2 increased in times of the graded exercise test of CE and TM (CE vs. TM: 2.542±0.100 vs. 2.506±0.087; p=0.26). The slope of increase on SBP accompanied by VO2 increase was significantly higher in CE than in TM (CE vs. TM: 1.669±0.117 vs. 1.179±0.063; p<0.001).

Conclusion: The SBP response is stronger in CE than in TM during the graded exercise test. Therefore, there is a possibility that CE could induce a greater burden on workloads to cardiovascular system in humans than TM.

No MeSH data available.