european college of sport science

Wednesday, June 24th, 2009
13:00 - 14:00
Poster presentations
PP-HF07 Health and Fitness 7
STUDY OF THE CARDIOVASCULAR RESPONSE TO HARVARD STEP TEST IN DRUG ADDICTS IN REHABILITATION PHASE
SAAVEDRA, F., MARTINS, R., SANTOS, A., RIBEIRO, R.
UNIVERSITY OF TRÁS-OS-MONTES
This case-control study intended to evaluate the physiological response to effort (cardiovascular component) on a group of drug abusers
in therapy, and elucidate eventual insufficiencies in cardiovascular performance as compared to a control group.
Our sample was constituted by twelve adult men drug consumers (28 +4.59 years of age; 75.38 +6.57 Kg weight and 179 +0.08 cm
height) included in a rehabilitation program (mean of 6.04 +5.79 months of participation in the program), and 14 controls (25.07 +5.30
years of age; 75.25 +10.76 Kg weight and 175.5 +0.07 cm height) took part on this investigation. All the subjects were healthy and had no
participation on any organized physical activity. We used the Harvard Step Test to evaluate the recovery index, recording the heart rate
every 5 seconds with a polar monitor.
Results show no significant differences (p>0.05) in recovery indexes between both groups (69.34 +14.28 experimental group and 67.40
+5.58 the control group), as well as no differences was observed in beats per minute at every minutes of the test and in the percent of
variation of heart rate in all 60 seconds. When we excluded from the statistical analysis, the drug abusers that consumed cocaine (n=3),
no changes in the relations were noted. The means comparison (T-student) between cocaine consumers and control group didn’t result
on differences in any dependent variable. After mean adjustment with ANOVA, the results suggest some effect of weight and age in test
performance, or else, this variables account for the variations in results between subjects.
We conclude that cardiovascular capacity, measured has the response to a sub-maximal test is not impaired in drug abusers. Conversely,
individuals in therapy for drug abuse should be encouraged to participate in sports activities, representing sub-maximal efforts.
We need more evidence to support our results, namely other tests and functional evaluations, and knowing the cardiovascular response
to maximal effort.
Lange, R.A., Hillis, L.D. (2001). Cardiovascular complications of cocaine use. N. Engl. J. Med. 345 (5): 351-8.
Neiman, J., Haapaniem, H.M., Hillbom, M. (2000). Neurological complications of drug abuse: pathophysiological mechanisms. Eur. J.
Neurol. 7(6) : 595-606.
Pu, L., Bao, G.-B., Xu, N.-J., Ma, L., Pei, G. (2002). Hippocampal long-term potentiation is reduced by chronic opiate treatment and can be
restored by re-exposure to opiates. J. Neurosci. 22 (5): 1914-21.
Raine, N. M., Cable, N. T., George, K. P., Campbell, I. G. (2001). The influence of recovery posture or post-exercise by potension in normontensive
men. Med. Sci. Sports Exerc. 33(3) :404-12.
Van Bockstaele, E.J., Peoples, J., Menko, A.S., McHugh, K., Drolet, G. (2000). Decreases in endogenous opioid peptides in the rat medullocoerular
pathway after chronic morfine treatment. J. Neurosci. 20 (23): 8659-66.
EFFECTIVENESS OF A PHYSICAL ACTIVITY PROGRAM TAILORED TO PATIENTS’ HEALTH STATUS AND ACTIVITY LEVELS:
A PILOT RANDOMIZED CONTROLLED TRIAL
MARTIN-BORRÀS, C., PUIG-RIBERA, A., GINÉ-GARRIGA, M., MARTIN, C., DORDAL, S., CASANOVAS, E., RIERA, M., GUERRA-
BALIC, M.
PRIMARY HEALTH CARE OF BARCELONA, INSTITUT CATALÀ DE LA SALUT
Carme Martin-Borràs1,2,3; Anna Puig-Ribera1,4; Maria Giné-Garriga1,2,3; Carlos Martin1,5; Susagna Dordal6; Elena Casanovas6;
Montse Riera6; Míriam Guerra-Balic3
1CardioCat Research Group, IDIAP Jordi Gol (Catalonia, Spain); 2Pimary care of Barcelona, Institut Català de la Salut (Catalonia, Spain);
3Department of Physical Activity and Sport Sciences, FPCEE Blanquerna, Universitat Ramon Llull (Catalonia, Spain); 4Universitat de Vic
(Catalonia, Spain); 5CAP Passeig Sant Joan, Institut Català de la Salut (Catalonia, Spain); 6ABS Vic Nord, Institut Català de la Salut (Catalonia,
Spain).
There is scarce evidence in Spain about effective ways of producing sustained increases in patients’ physical activity (PA) that can be
easily integrated into the primary care work routine.
PURPOSE. To evaluate the short and mid-term impact of a PA program over a patients’ total PA and their attitude towards practicing PA,
using a pilot randomized control trial (RCT).
METHODS. Following ethical approval, thirty primary care patients with a low level of PA, an associated chronic disease and non medical
contraindication to practice PA (5 male, 25 female; 69±10 years; 31.3±2.9 kg/m2) were randomly allocated to a control group (CG)(n=12)
(usual care) or intervention group (IG) (n=18) (3-month PA program; two sessions/week; 60 minutes/session). Previously validated questionnaires
to measure total PA (IPAQ short version) and Stages of Change (SOC) for PA were administered 4 times: pre, post intervention,
3 and 6-month follow-up. Effects over the intervention were evaluated by calculating the magnitude of change between pre and 3 and 6month
follow-up scores for total METS minutes/week and maintaining/changing patient’s SOC for PA. Independent t-test (METS minutes/week)
and Chi-square test (SOC for PA) were used to identify significant differences and associations between groups.
RESULTS. Patients’ adherence to the program was high (78% assistance). The average METS minutes/week at baseline were 1662 (±1362)
for the CG and 1659 (±1235) for IG. The IG showed higher MET minutes/week in the 3-month follow-up (2823±1813) and 6-month followup
(1992±1201) than the CG (1731±1281 in the 3-month follow up and 1707±1249 in the 6-month follow up). The difference between groups
was significant (t(18)=-3.12, p=0.006). At baseline, 66% of the IG (8 subjects) and 80% of the CG (8 subjects) were at the precontemplation/contemplation
stage for PA. In the follow-up, 95%
of the IG (14 subjects) had moved towards the action/maintenance stages while 100% of the CG (12 subjects) remained in the initial SOC.
There was a significant association between participating in the PA program and patients’ changing their SOC for PA (Χ2(3)=24.7,
p