Blood pressure responses during cycle ergometry and cold pressor test in overweight and non‐overweight adolescents

Viswanath B. Unnithan, Tracy Baynard, Kevin Heffernan, Erin Kelly, Greg Yates, Max Garrard, Bo Fernhall

Research output: Contribution to journalMeeting Abstract

Abstract

PURPOSE: The aim of the study was to compare the blood pressure responses during cycle ergometry and a cold pressor test in a group of overweight (OW) and non-overweight (NO) children and adolescents.
METHODS: Twelve overweight (> 85th percentile for BMI for age and gender) children and adolescents, 7M and 5F (Age: 11.5 ± 1.7 years, Stature: 161 ± 12 cm and Body Mass: 69.3 ± 24.1 kg) and five non-overweight children (2M and 3F) volunteered for the study (Age: 12.6 ± 1.9 years, Stature: 160 ± 10 cm and Body Mass: 45.8 ± 14.0 kg). With the subjects in a seated position, beat-to-beat blood pressure was recorded using finger plethysmography for 2-min prior to the onset of the tests (RST). All subjects first underwent a cold pressor (CP) test (arm immersed up to the wrist in cold water at 10°C for two minutes). Early (ECP) pressor responses were defined as blood pressure data obtained in the first 30s and late (LCP) pressor responses were defined as the blood pressure response in the last 30s of the test. Following the CP test all subjects underwent two submaximal exercise stages on the cycle ergometer (3 min unloaded (UL) and 5 min at 50W). Compliance (C), mean blood pressure (MBP), total peripheral resistance (TPR), systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured.

RESULTS: A significant (P<0.05) group effect for DBP was identified for the CP test at RST (OW: 75 ± 6 mmHg vs. NO: 68 ± 7 mmHg), ECP (OW: 78 ± 8 mmHg vs. NO: 71 ± 8 mmHg) and LCP (OW: 87 ± 9 mmHg vs. NO: 82 ± 9 mmHg). Furthermore, a significant (P<0.05) main effect for group was also identified for DBP during the cycle ergometer test at RST (OW: 75 ± 6 mmHg vs. NO: 68 ± 7 mmHg) UL (OW: 77 ± 5 mmHg vs. NO: 70 ± 5 mmHg) and 50W (OW: 83 ± 7 mmHg vs. NO: 79 ± 8 mmHg). After co-varying for RST, the main effect for group was abolished during cycle ergometry. There were no significant main effects for group or interaction effects for C, MBP, TPR and SBP.
CONCLUSION: The higher DBP responses during exercise were a function of the higher resting DBP and may be an early indicator of cardiovascular dysfunction in obese individuals.
Original languageEnglish
Article number1254
Pages (from-to)S167-S167
Number of pages1
JournalMedicine & Science in Sports & Exercise
Volume39
Issue number5
DOIs
Publication statusPublished - May 2007
Externally publishedYes

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Ergometry
Blood Pressure
Vascular Resistance

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Unnithan, Viswanath B. ; Baynard, Tracy ; Heffernan, Kevin ; Kelly, Erin ; Yates, Greg ; Garrard, Max ; Fernhall, Bo. / Blood pressure responses during cycle ergometry and cold pressor test in overweight and non‐overweight adolescents. In: Medicine & Science in Sports & Exercise. 2007 ; Vol. 39, No. 5. pp. S167-S167.
@article{a3311d0eb8294eefa04a7524e51d8244,
title = "Blood pressure responses during cycle ergometry and cold pressor test in overweight and non‐overweight adolescents",
abstract = "PURPOSE: The aim of the study was to compare the blood pressure responses during cycle ergometry and a cold pressor test in a group of overweight (OW) and non-overweight (NO) children and adolescents.METHODS: Twelve overweight (> 85th percentile for BMI for age and gender) children and adolescents, 7M and 5F (Age: 11.5 ± 1.7 years, Stature: 161 ± 12 cm and Body Mass: 69.3 ± 24.1 kg) and five non-overweight children (2M and 3F) volunteered for the study (Age: 12.6 ± 1.9 years, Stature: 160 ± 10 cm and Body Mass: 45.8 ± 14.0 kg). With the subjects in a seated position, beat-to-beat blood pressure was recorded using finger plethysmography for 2-min prior to the onset of the tests (RST). All subjects first underwent a cold pressor (CP) test (arm immersed up to the wrist in cold water at 10°C for two minutes). Early (ECP) pressor responses were defined as blood pressure data obtained in the first 30s and late (LCP) pressor responses were defined as the blood pressure response in the last 30s of the test. Following the CP test all subjects underwent two submaximal exercise stages on the cycle ergometer (3 min unloaded (UL) and 5 min at 50W). Compliance (C), mean blood pressure (MBP), total peripheral resistance (TPR), systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured.RESULTS: A significant (P<0.05) group effect for DBP was identified for the CP test at RST (OW: 75 ± 6 mmHg vs. NO: 68 ± 7 mmHg), ECP (OW: 78 ± 8 mmHg vs. NO: 71 ± 8 mmHg) and LCP (OW: 87 ± 9 mmHg vs. NO: 82 ± 9 mmHg). Furthermore, a significant (P<0.05) main effect for group was also identified for DBP during the cycle ergometer test at RST (OW: 75 ± 6 mmHg vs. NO: 68 ± 7 mmHg) UL (OW: 77 ± 5 mmHg vs. NO: 70 ± 5 mmHg) and 50W (OW: 83 ± 7 mmHg vs. NO: 79 ± 8 mmHg). After co-varying for RST, the main effect for group was abolished during cycle ergometry. There were no significant main effects for group or interaction effects for C, MBP, TPR and SBP.CONCLUSION: The higher DBP responses during exercise were a function of the higher resting DBP and may be an early indicator of cardiovascular dysfunction in obese individuals.",
author = "Unnithan, {Viswanath B.} and Tracy Baynard and Kevin Heffernan and Erin Kelly and Greg Yates and Max Garrard and Bo Fernhall",
year = "2007",
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language = "English",
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Blood pressure responses during cycle ergometry and cold pressor test in overweight and non‐overweight adolescents. / Unnithan, Viswanath B.; Baynard, Tracy; Heffernan, Kevin; Kelly, Erin; Yates, Greg; Garrard, Max; Fernhall, Bo.

In: Medicine & Science in Sports & Exercise, Vol. 39, No. 5, 1254, 05.2007, p. S167-S167.

Research output: Contribution to journalMeeting Abstract

TY - JOUR

T1 - Blood pressure responses during cycle ergometry and cold pressor test in overweight and non‐overweight adolescents

AU - Unnithan, Viswanath B.

AU - Baynard, Tracy

AU - Heffernan, Kevin

AU - Kelly, Erin

AU - Yates, Greg

AU - Garrard, Max

AU - Fernhall, Bo

PY - 2007/5

Y1 - 2007/5

N2 - PURPOSE: The aim of the study was to compare the blood pressure responses during cycle ergometry and a cold pressor test in a group of overweight (OW) and non-overweight (NO) children and adolescents.METHODS: Twelve overweight (> 85th percentile for BMI for age and gender) children and adolescents, 7M and 5F (Age: 11.5 ± 1.7 years, Stature: 161 ± 12 cm and Body Mass: 69.3 ± 24.1 kg) and five non-overweight children (2M and 3F) volunteered for the study (Age: 12.6 ± 1.9 years, Stature: 160 ± 10 cm and Body Mass: 45.8 ± 14.0 kg). With the subjects in a seated position, beat-to-beat blood pressure was recorded using finger plethysmography for 2-min prior to the onset of the tests (RST). All subjects first underwent a cold pressor (CP) test (arm immersed up to the wrist in cold water at 10°C for two minutes). Early (ECP) pressor responses were defined as blood pressure data obtained in the first 30s and late (LCP) pressor responses were defined as the blood pressure response in the last 30s of the test. Following the CP test all subjects underwent two submaximal exercise stages on the cycle ergometer (3 min unloaded (UL) and 5 min at 50W). Compliance (C), mean blood pressure (MBP), total peripheral resistance (TPR), systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured.RESULTS: A significant (P<0.05) group effect for DBP was identified for the CP test at RST (OW: 75 ± 6 mmHg vs. NO: 68 ± 7 mmHg), ECP (OW: 78 ± 8 mmHg vs. NO: 71 ± 8 mmHg) and LCP (OW: 87 ± 9 mmHg vs. NO: 82 ± 9 mmHg). Furthermore, a significant (P<0.05) main effect for group was also identified for DBP during the cycle ergometer test at RST (OW: 75 ± 6 mmHg vs. NO: 68 ± 7 mmHg) UL (OW: 77 ± 5 mmHg vs. NO: 70 ± 5 mmHg) and 50W (OW: 83 ± 7 mmHg vs. NO: 79 ± 8 mmHg). After co-varying for RST, the main effect for group was abolished during cycle ergometry. There were no significant main effects for group or interaction effects for C, MBP, TPR and SBP.CONCLUSION: The higher DBP responses during exercise were a function of the higher resting DBP and may be an early indicator of cardiovascular dysfunction in obese individuals.

AB - PURPOSE: The aim of the study was to compare the blood pressure responses during cycle ergometry and a cold pressor test in a group of overweight (OW) and non-overweight (NO) children and adolescents.METHODS: Twelve overweight (> 85th percentile for BMI for age and gender) children and adolescents, 7M and 5F (Age: 11.5 ± 1.7 years, Stature: 161 ± 12 cm and Body Mass: 69.3 ± 24.1 kg) and five non-overweight children (2M and 3F) volunteered for the study (Age: 12.6 ± 1.9 years, Stature: 160 ± 10 cm and Body Mass: 45.8 ± 14.0 kg). With the subjects in a seated position, beat-to-beat blood pressure was recorded using finger plethysmography for 2-min prior to the onset of the tests (RST). All subjects first underwent a cold pressor (CP) test (arm immersed up to the wrist in cold water at 10°C for two minutes). Early (ECP) pressor responses were defined as blood pressure data obtained in the first 30s and late (LCP) pressor responses were defined as the blood pressure response in the last 30s of the test. Following the CP test all subjects underwent two submaximal exercise stages on the cycle ergometer (3 min unloaded (UL) and 5 min at 50W). Compliance (C), mean blood pressure (MBP), total peripheral resistance (TPR), systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured.RESULTS: A significant (P<0.05) group effect for DBP was identified for the CP test at RST (OW: 75 ± 6 mmHg vs. NO: 68 ± 7 mmHg), ECP (OW: 78 ± 8 mmHg vs. NO: 71 ± 8 mmHg) and LCP (OW: 87 ± 9 mmHg vs. NO: 82 ± 9 mmHg). Furthermore, a significant (P<0.05) main effect for group was also identified for DBP during the cycle ergometer test at RST (OW: 75 ± 6 mmHg vs. NO: 68 ± 7 mmHg) UL (OW: 77 ± 5 mmHg vs. NO: 70 ± 5 mmHg) and 50W (OW: 83 ± 7 mmHg vs. NO: 79 ± 8 mmHg). After co-varying for RST, the main effect for group was abolished during cycle ergometry. There were no significant main effects for group or interaction effects for C, MBP, TPR and SBP.CONCLUSION: The higher DBP responses during exercise were a function of the higher resting DBP and may be an early indicator of cardiovascular dysfunction in obese individuals.

U2 - 10.1249/01.mss.0000273613.25709.a5

DO - 10.1249/01.mss.0000273613.25709.a5

M3 - Meeting Abstract

VL - 39

SP - S167-S167

JO - Medicine & Science in Sports & Exercise

JF - Medicine & Science in Sports & Exercise

SN - 0195-9131

IS - 5

M1 - 1254

ER -