The purposes of this study were to determine if (1) RE is adversely affected by intense interval bouts of 10 x 400-m, and (2) if there is an interaction effect between RE and recovery duration during the workouts. Twelve highly trained male runners (VO$ rm sb{2max} = 72.5 pm 4.3 ml cdot kg sp{-1} cdot min sp{-1}$) performed 3 interval workouts of 10 x 400-m with a minimum of 4 days between runs. Recovery between repetitions was randomly assigned at 60, 120 or 180 s. The velocity for each 400-m run was determined from a treadmill VO$ rm sb{2max}$ test. The average running velocity was 357.9 $ pm$ 9.0 $ rm m cdot min sp{-1}$. Following the workout, rating of perceived exertion (RPE) increased significantly (p $<$ 0.01) as recovery duration decreased (14.4 at 180 s; 16.1 at 120 s; 17.7 at 60 s recovery). Prior to and following each workout, RE was measured at speeds of 200 and 268 $ rm m cdot min sp{-1}$. Changes from pre to post RE tests in VO$ sb2$, HR, and RER were similar for the three recovery conditions. Averaged across conditions, VO$ sb2$ increased significantiy (p $<$ 0.01) pre to post tests (38.5 to 40.5 $ rm ml cdot kg sp{-1}min sp{-1}$ at 200 $ rm m cdot min sp{-1}$ and from 53.1 to 54.5 $ rm ml cdot kg sp{-1}min sp{-1}$ at 268 $ rm m cdot min sp{-1}$) HR increased (124 to 138; and 151 to 157 bpm) and RER decreased (0.90 to 0.78; and 0.93 to 0.89) at 200 and 268 $ rm m cdot min sp{-1}$, respectively (p $<$ 0.01). This study showed that RE can be perturbed after a high-intensity interval workout and that changes in VO$ sb2$, HR and RER were independent of the recovery duration between repetitions.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.35312 |
| Date | January 1997 |
| Creators | Zavorsky, Gerald Stanley. |
| Contributors | Montgomery, David (advisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Arts (Department of Physical Education.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001574895, proquestno: MQ29521, Theses scanned by UMI/ProQuest. |
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