The purpose of this study was to examine the impact of a 12-week jump rope exercise program on blood pressure, arterial stiffness, vasodilating and vasoconstricting factors, inflammatory markers, and body composition in prehypertensive adolescent girls. Forty prehypertensive adolescent girls participated in this study. The girls were randomly divided into the jump rope exercise intervention group (EX, n=20) and control group (CON, n=20). The EX group performed a jump rope training program at 40-70% of their heart rate reserve (HRR) 5 days/week for 12 weeks (sessions 50 minutes in duration). The CON group did not participate in any structured or unstructured exercise protocol. Blood pressure, arterial stiffness, plasma nitrate/nitrite levels, endothelin-1, C-reactive protein, and body composition were measured before and after the 12-weeks study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE
Enrollment
40
12-week jump rope exercise program
Arterial Stiffness
Arterial stiffness was measured as measurement of brachial to ankle pulse-wave velocity. This indicates peripheral arterial stiffness, as it measures how quickly a pulse wave propagates from one point to another.
Time frame: 12 weeks
Endothelin-1
Levels of Endothelin-1 in blood were measured by Endothelin-1 enzyme immunoassay kit.
Time frame: 12 weeks
Body Mass
Body mass was measured to nearest 0.1 kg.
Time frame: 12 weeks
Height
Height was measured to nearest 1 cm.
Time frame: 12 weeks
Waist Circumference
Waist circumference was measured at midpoint between the lower rib and the iliac crest at the end of a normal expiration using a tape measure.
Time frame: 12 weeks
Body Fat
Percent body fat (%) was determined using a bioelectrical impedance-meter.
Time frame: 12 weeks
Lean Body Mass
Lean body mass (kg) was determined using a bioelectrical impedance-meter.
Time frame: 12 weeks
Nitrate/Nitrite Levels
Nitrate and nitrite levels were assayed using a Griess assay kit.
Time frame: 12 weeks
C-reactive Protein
C-reactive protein was assessed using an enzyme immunoassay assay kit
Time frame: 12 weeks
Systolic Blood Pressure
Blood pressure was measured in duplicate using an automated sphygmomanometer. The average of the two was recorded as the resting blood pressure.
Time frame: 12 weeks
Diastolic Blood Pressure
Time frame: 12 weeks
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