Econorny Using Three Recovery Durations

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Hustler. R., Bertgteinova, V., et al. (1973). Perception of effort during different types of exercise and under ..... NY 14609 USA. --. --=. Phone: 71 6/482-0300. --. 7-.
Effect of Intense Interval Workouts on Running

Econorny Using Three Recovery Durations

BY Gerald Stanley Zavorsky

Department of Physicd Education

McGill University Montreal, Quebec, Canada

A Thesis Submitted to the Faculty of Graduate Studies and Research in Partial

Fulfilment of the requirements for the Degree of Master of Arts (M.A.)

Copyright

Gerald Stanley Zavorsky 1997

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ABSTRACT The purposes of this study were to detemine if (1) RE is adversely affected by intense interval bouts of I O x 400-m,and (2) if there is an interaction effect between RE and recovery duration during the workouts. Twelve highly trained male runnen (VO,, 72.5

I4.3

=

ml-kg-%ne') 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-mmn was determined from a treadmill VO1,, test. The average mnning velocity was 357.9 t 9.0 rnmin". Following the workout. rating of perceived exertion (RPE) increased significantly (pc0.01) as recovery duration decreased (14.4 at 180 s; 16.1 at 120 s; 17.7 at 60 s recovery). Pnor to and following each workout, RE was measured at speeds of 200 and 268 rnmin". Changes from pre

to post RE tests in VOZ. HR, and RER were similar for the three recovery conditions. Averaged across conditions, VO, increased significantly (pc0.01)pre to post tests (38.5 to 40.5 ml-kg'min-l at 200 mmin-' and from 53.1 to 54.5 rnl-kg-lmin-lat 268 rnrnin-'). HR increased ( 124 to 138: and 15 1 to 157 bpm) and RER decreased (0.90 to 0.78; and 0.93 to 0.89) at 200 and 268 mmin-', respectively (p

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