The effects of performing isometric training at two exercise intensities in healthy young males |
| |
Authors: | Jonathan Derek Wiles Damian A Coleman Ian L Swaine |
| |
Institution: | (1) Department of Sport Science, Canterbury Christ Church University, North Holmes Road, Canterbury, CT1 1QU, UK |
| |
Abstract: | No previous studies have examined the effects of isometric training intensity upon resting blood pressure (BP). The aims of
this study were (a) to compare the effects of leg isometric training, performed at two intensities, upon resting systolic-SBP,
diastolic-DBP and mean arterial-MAP BP; and (b) to examine selected cardiovascular variables, in an attempt to explain any
changes in resting BP following training. Thirty-three participants were randomly allocated to either control, high- (HI)
or low-intensity (LI) training for 8 weeks. Participants performed 4 × 2 min exercise bouts 3× weekly. Resting BP was measured
at baseline, 4-weeks and post-training. SBP, DBP and MAP fell significantly in both groups after training. Changes were –5.2 ± 4.0,
–2.6 ± 2.9 and –2.5 ± 2.2 mmHg HI]; –3.7 ± 3.7, –2.5 ± 4.8 and –2.6 ± 2.5 mmHg LI] for SBP, DBP and MAP, respectively. There
were no significant changes in BP at 4 weeks. No significant changes were observed in any of the other cardiovascular variables
examined. These findings suggest that isometric training causes reductions in SBP, DBP and MAP at a range of exercise intensities,
when it is performed over 8 weeks. Furthermore, it is possible to reduce resting BP using a much lower isometric exercise
intensity than has previously been shown. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|