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Título: The effects of a field learning trial and various methods of feedback in self-regulation of exercise intensity
Autores: Wegner, Michael S.
Fecha: 2011-06-03
2011-06-03
1990
2011-06-03
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Tema: Exercise -- Physiological aspects.
Physical fitness -- Testing.
Descripción: This study was designed to assess the independent effect of a field learning trial, combined with various forms of exercise intensity feedback on the self-regulation of exercise intensity. Following a treadmill test, 42 males (21.8±2.7yrs) were randomly assigned to one of 3 exercise intensity feedback groups: heart rate (HR), heart rate + rating of perceived exertion (HR+RPE) or no systematic feedback (CONT). Half of the subjects in each group, were paced (P) to target heart rate (THR) during the first 800 meter field trial on day 1. Subjects in the non-paced (NP) groups completed the first trial at a self-selected pace. Following the first trial, subjects were instructed to exercise at their target intensity, and received the designated feedback after each of three 800m trials, on four days (D1-D4) within one week. Deviations (±bpm) from THR were recorded following each trial, and group means (S.D.) are presented below. Differences among groups were tested using a 3-way ANOVA (pacing x feedback x trials) with repeated measures across trials.GROUPDAY 1DAY 2DAY 3DAY 4P HR8.8(4.3)2.5(3.6)5.3(4.3)2.5(4.2)NP HR4.8(9.8)3.1(3.8)1.7(1.7)2.3(3.3)P HR+RPE6.1(6.6)1.3(6.4)2.8(5.8)2.1(3.4)NP HR+RPE9.0(9.0)6.9(6.6)4.3(8.0)3.6(5.7)PCONT5.7(5.9)2.9(12.3)5.4(8.8)2.4(13.5)NP CONT *21.67.316.38.416.010.914.17.5* NP CONT > all other groups on each day (p < 0.05)The pacing x feedback x trials interaction was not significant within any day. All groups increased accuracy from D1-D4, with most of the improvement being noted between D1 & D2 (p < 0.01). The addition of RPE (HR+RPE) feedback during the trials did not result in greater accuracy when compared to HR only feedback. Although both the P CONT & NP CONT groups improved across days, the P-CONT subjects were no less accurate than the groups using HR or HR+RPE feedback. Thus, a single 4-5 minute learning trial was as effective as the use of HR and perceptual feedback in the self-regulation of exercise training intensity in the field setting.Ball State UniversityMuncie, IN 47306
Ball State University. School of Physical Education -- Theses (M.A.) -- 1990.
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