Thursday-Abstracts

Official Journal of the American College of Sports Medicine
However, exercise has been shown to increase pain sensitivity in clinical pain
populations.
PurPOsE: Delayed-onset muscle soreness (DOMS) approximates clinical pain; thus
the purpose of this study was to examine the effects of fatiguing isometric exercise on
PPT in the presence and absence of DOMS.
METhOds: Data were collected on 23 males (age: 19-29yrs). Following
familiarization, baseline testing (no DOMS) was performed. Eccentric exercise was
then performed to induce DOMS, and all tests were repeated 48-hours later when
DOMS was present. Participants held 25% of maximum voluntary contraction (MVC)
until fatigue, defined as force declining >10% below the target force. PPT was assessed
in the left and right rectus femoris at the mid-point between the patella and ASIS prior
to, every 30 seconds during, and 2 and 15-minutes post exercise.
rEsuLTs: No condition x time interactions were found for either the ipsilateral
(p=0.81) or contralateral (p=0.61) thigh nor was a main effect for condition found
(p=0.65). A main effect for time was found with PPT being elevated during (p≤0.001)
and after exercise in the ipsilateal thigh (p≤0.039), but only during exercise in the
contralateral thigh (p≤0.002).
CONCLusIONs: Unlike clinical pain, DOMS had no effect on the PPT response
exercise in either the ipsilateral or contralateral thigh. Increases in PPT during exercise
in both thighs suggests a centralized alteration in pain sensitivity. The restriction of
post-exercise effects to the contracting thigh suggests a localized mechanism due to
contraction may be at play.
1229 Board #174 May 30, 9:00 AM - 10:30 AM
Work distribution Influences session rPE during resistance
Exercise
Justin A. Kraft1 , James M. Green, FACSM2 , Tyler M. Gast1 .
1 2 Missouri Western State University, St. Joseph, MO. University
of North Alabama, Florence, AL.
(No relationships reported)
Previous research has indicated that session ratings of perceived exertion (RPE) are
sensitive to changes in both total work volume and work rate (total work/unit time)
during resistance training.
PurPOsE: This study examined the influence of work distribution (varied load, set,
and repetitions (reps)) on session RPE in two resistance exercise trials matched for
total work volume and work rate.
METhOds: Participants were tested for their one repetition maximum (1RM) on the
bench press, lat pull down, overhead press, upright row, triceps extension, and biceps
curl. Participants then completed a low load/high rep (LLHR) trial (2 sets x 12 reps x
3 min recovery at ~60% 1RM) and a high load/low rep (HLLR) trial (3 sets x 6 reps x
1.5 min recovery at ~80% 1RM) of each exercise that differentiated work distribution
but equated work volume and rate. One warm-up set of 12 reps at ~40% 1RM was
completed prior to the bench press. A standard 2 min recovery separated each exercise
in both trials. Session RPE and recovery heart rate (HR) were recorded 20 min after
exercise. Differences were considered significant at the p ≤ 0.05 level.
rEsuLTs: Pre-set RPE and post-set RPE were significantly lower for LLHR vs.
HLLR (2.1 ± 1.4 vs. 3.0 ± 1.9) and (4.6 ± 0.8 vs. 5.8 ± 1.0) respectively despite
matched total volume and work rate. Pre-set HR (96 ± 11 bpm vs. 105 ± 16 bpm) and
post-set HR (128 ± 12 bpm vs. 137 ± 16 bpm) were significantly higher for HLLR
when compared to LLHR. Session RPE results indicated the LLHR trial was perceived
as significantly easier (4.5 ± 1.3) vs. the HLLR (5.8 ± 1.6) trial. No difference in
recovery HR (20 min post) was observed between trials (86 ± 8 bpm (LLHR) vs. 85 ±
11 bpm (HLLR)).
CONCLusIONs: Session RPE was sensitive to changes in work distribution and
increased with increased load even when total volume and work rate were matched.
Significantly higher pre-set RPE and pre-set HR in HLLR may indicate differences in
recovery between sets. Significantly higher post-set RPE and post-set HR in HLLR
indicated increased difficulty of individual sets in the HLLR trial. Differences in
recovery and individual set difficulty likely contributed to session RPE differences.
Differences in session RPE despite no difference in recovery HR indicate that session
RPE is sensitive to variation in work distribution but is estimated independently of
recovery HR.
1230 Board #175 May 30, 9:00 AM - 10:30 AM
do division III Cross Country runners Experience the
Intended Coach Prescribed Training Impulse (TrIMP)?
Mitchell A. Hagen1 , Colleen E. Bouchard2 , Jacquie M.
Donohue2 , Mary C. Stenson3 , Don V. Fischer3 . 1Saint John’s
University, Collegeville, MN. 2College of Saint Benedict, Saint
Joseph, MN. 3College of Saint Benedict /Saint John’s University,
Saint Joseph and Collegeville, MN.
(No relationships reported)
Cross country coaches create training plans to induce desired adaptations. However,
research suggests athletes do not consistently train as the coach prescribed.
PurPOsE: To examine the relationship between coach intended, athlete-perceived,
and physiological training impulses (TRIMPs) during recovery, slow long distance,
Vol. 45 No. 5 Supplement S235
tempo, and interval training performed by 14 Division III female cross country
runners.
METhOds: A TRIMP weighting scale and an associated rate perceived exertion
(RPE) scale were created for each athlete based on the individual’s blood lactate
curve. Heart rate data were collected using Polar Team System heart rate (HR)
monitors during a two week in-season period; athletes were blinded to the HR data.
Physiological TRIMPs were calculated by multiplying time spent in each HR zone by
the assigned weighting factor. Coach intended TRIMPs for each practice session were
calculated by multiplying the time spent training by the weighting factor associated
with the prescribed session RPE. . The athlete perceived TRIMPs for each practice
session were calculated by multiplying the time spent training by the weighting factor
associated with the athlete-perceived session RPE.
rEsuLTs: One-way ANOVA revealed significant differences between the coach
intended, athlete-perceived, and physiological mean TRIMPs for recovery [(F (2,204)
= 3.359, p < .05], tempo [(F (2, 75) = 19.034; p < .001)], and interval [(F (2, 55) =
4.161, p .05)]. Least Significant Difference post-hoc testing revealed a significant difference
(p < .05) in the mean coach intended (52.52 ± 29.73) and physiological (65.80 ± 32.50)
TRIMPs during recovery training. Post-hoc testing also revealed significant differences
(p < .001) in the mean coach intended and athlete perceived TRIMPS during tempo (C:
109.87 ± 26.54; A: 62.77 ± 30.37) and interval training (C: 72.17 ± 38.16; A: 41.93 ±
26.21).
CONCLusION: During recovery sessions, participants ran at intensities greater than
that prescribed by the coach. During tempo and interval training, athletes ran at the
coach indicated intensity, but perceived themselves to be training at a lower intensity.
Closer monitoring of training intensity may be needed to ensure the appropriate
training stimulus is achieved.
1231 Board #176 May 30, 9:00 AM - 10:30 AM
Effect of the Exercise setting on Body Consciousness, Body
satisfaction and social Physique anxiety in Females
Isaura Castillo-Hernández 1 , Vanessa Smith-Castro 2 , Walter
Salazar-Rojas 1 , José Moncada-Jiménez 3 . 1 University of Costa
Rica, San José, Costa Rica. 2 Psychological Research Institute
(IIP), UCR, San José, Costa Rica. 3 Human Movement Sciences
Laboratory (LACIMOV), UCR, San José, Costa Rica.
(No relationships reported)
The beneficial effects of exercise programs are widely recognized; however, the use of
mirrors in the exercise setting might counteract the positive acute and chronic effects
of resistance training programs.
PurPOsE: To examine the acute and chronic effects of a resistance training program
performed with and without mirrors on the social physique anxiety (SPA), objectified
body consciousness (OBC; body surveillance [BS], body shame [BSH] and appearance
control beliefs [ACB]), body segment satisfaction (BSS), and body image satisfaction
(BIS; actual figure [AF] and desired figure [DF]) of sedentary females.
METhOds: Volunteers were 52 females (Mean age = 22.6 ± 5.15 yrs.) randomly
allocated in four experimental groups: a) 25-min resistance training exercise in front of
a mirror at 70% 1RM; b) 25-min resistance training exercise at 70% 1RM, no mirror;
c) 25-min passive table games in front of a mirror; and d) 25-min passive table games,
no mirror. Participants performed one session per week in their respective experimental
condition for six weeks and filled the Social Physique Anxiety Scale, the Objectified
Body Consciousness Scale, the Multidimensional Body Self Relations Questionnaire
(Body Segment Satisfaction subscale) and the Contour Drawing Rating Scale, at the
beginning (pre-test) and at the end of the program (post-test). BIS was computed as the
difference between the AF minus the DF scores.
rEsuLTs: Three-way analysis of variance revealed a significant main effect (p =
0.027) in the acute AF between females performing exercise (M = 6.15 ± 0.38) and
those performing table games (M = 4.92 ± 0.39). Significant main effects were found
for chronic exercise on BS (Pre-test = 4.54 ± 0.21 vs. Post-test = 4.26 ± 0.19; p =
0.360), experimental paradigm on AF (Exercise = 6.12 ± 0.36 vs. Table games = 4.98
± 0.37; p = 0.032), measurement time on the DF (Pre-test = 4.34 ± 0.16 vs. Post-test =
4.68 ± 0.17; p = 0.36) and measurement time on BIS (Pre-test = 1.15 ± 0.22 vs. Posttest
= 0.93 ± 0.19; p = 0.046). No significant interactions or main effects were obtained
for the acute or chronic effects on SPA, BSH, ACB, BSS, and SPC.
CONCLusIONs: No acute or chronic effect of a resistance training program
performed with or without mirrors was observed on body consciousness, body
satisfaction and social physique anxiety in sedentary females.
1232 Board #177 May 30, 9:00 AM - 10:30 AM
The rating of Fatigue scale (rOF)
Abdulaziz Al Salman 1 , Alan St Clair Gibson 2 , Dominic
Micklewright 1 . 1 University of Essex, Colchester, United
Kingdom. 2 Northumbria University, Newcastle, United Kingdom.
(No relationships reported)
PurPOsE: Perceived exertion scales represent how ‘hard’ an exercise feels but not
how ‘fatigued’ an athlete feels. Measuring perceived fatigue may be advantageous in
Abstracts were prepared by the authors and printed as submitted.
Thursday, May 30, 2013