Cardiovascular effects : rebounding versus jogging on untrained college females

Abstract

Untrained college aged females (n = 45) were studied to determine if 7 wk rebounding and jogging programs would elicit similar cardiovascular training effects. The 13 joggers, 19 rebounders, and 13 controls who ranged in age from 19 - 32 yr volunteered to participate. The joggers and rebounders trained for 4 days a wk for 30 min each session. A pre (T1) and post (T2) Modified Astrand Treadmill test was administered to all Ss. Each was assigned a target HR based on 75% of the max HR obtained on the initial TM test. HR's were checked 3 times during each exercise session and averaged 78% for the rebounders and 82% for the joggers during the 7 wks. The following variables were analyzed using an ANOVA with Repeated Measures; body wt, submax RPE, max RPE, TM run time, max HR, VE max, RER, and V02 max in Lmin-1 and mlkgmin-1. A Scheffe post hoc was used to determine areas of sig. No sig changes (p>.05) were seen from T1 to T2 for the following variables: body wt, max RPE, VE max, RER, and V02 max. A sig increase (p<.01) in max HR was seen in joggers and rebounders. A sig decrease (p<.01) was seen in submax RPE for the joggers pre to post test. A sig increase (p<.01) was seen for all groups combined in TM run time from T1 to T2. Pre test controls had sig higher (p<.01) VE max values than the experimental groups. Control Ss showed no sig changes (p>.05) in any variable from T1 to T2. It was concluded that rebounding and jogging for 7 wks did not elicit a CV training effect in this investigation.