|
EATING ATTITUDES, PERFECTIONISM AND BODY-ESTEEM OF ELITE MALE JUDOISTS
AND CYCLISTS
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1LAPSEP, UFRSTAPS Orléans, 2 allée du Château, Orléans Cedex, France, 2Pôle Espoirs Judo. 63 Cournon d'Auvergne, 3Centre de Recherche et d'Innovation
sur le Sport, Université Claude Bernard, Lyon, France
| Received |
|
14 November 2006 |
| Accepted |
|
13
December 2006 |
| Published |
|
01
March 2007 |
©
Journal of Sports Science and Medicine (2007) 6, 50 - 57
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| ABSTRACT |
| This study tested the hypothesis that male athletes who feel pressured
to maintain a specific body weight present an elevated risk of subclinical
eating disorders. Twelve judoists (19.5 ± 0.5 yr), fifteen cyclists
(21.2 ± 2.8 yr) and seventeen non- competitive students matched for
BMI and used as controls (21.8 ± 1.8 yr) were studied using the Eating
Attitudes Test (EAT-26). The Multidimensional Perfectionism Scale,
the Body Esteem Scale and the Profile of Mood States were also used
to evaluate the relationships between eating disorders and psychological
characteristics. Athletes completed the tests during their competitive
period and controls completed the same scales at the same time. Scores
obtained on EAT-26 differed significantly from the control group on
EAT (p < 0.01), Dieting (p < 0.01), and Bulimia scores (p <
0.05). Sixty percent of the athletes used weight loss methods. Self-induced
vomiting, use of laxatives and diet pills were reported by 4%, 10%,
and 8.5% of them, respectively. Increasing exercise was the primary
method used by controls to lose body weight. Athletes reported greater
negative feelings about their physical appearance and their Body Weight
Satisfaction than controls (p < 0.01, p < 0.05, respectively).
Our results also showed that depression mood accounted for 73% of
the variance in Bulimia scores and for 64% of the variance in Global
EAT scores in athletes. Body-esteem Appearance and depression accounted
for a significant proportion of the variance in Dieting scores. There
was no difference in perfectionism and mood between athletes and controls.
This study highlights that these athletes may tread a fine line between
optimal competitive attitudes and detrimental health behaviors.
KEY
WORDS: Eating behavior, male athletes, perfectionism, body esteem,
mood.
|
| INTRODUCTION |
|
Prevalence of eating disorders (EDs) has become a growing concern
among athletic populations (Sundgot-Borgen, 1993).
Sports participants are at greater risk of developing EDs than the
general population, especially in endurance, aesthetic and weight
class sports where leanness or a specific weight are thought to
favor sports performance (Fogelholm and Hiilloskorpi, 1999;
Smolak et al., 2000;
Sundgot-Borgen and Torstveit, 2004).
Smolak et al., 2000
have estimated EDs among athletes to range from 1% to 62% depending
on the type of population studied (gender being the main determinant)
and methods used to assess EDs (interview or self- report). Consequently,
the prevalence of EDs in athletic populations remains a matter of
debate (Sundgot-Borgen, 1996;
Johnson et al., 2004).
Numerous studies have examined the prevalence of EDs in female athletes,
but very little information is available concerning their male counterparts
(Fogelholm and Hiilloskorpi, 1999;
Hall and Lane, 2001;
Hopkinson and Lock, 2004;
Lane, 2003).
This lack of information on EDs in male athletes may be attributable
to the fact that this syndrome is less widespread in male than female
populations (Baum, 2006).
The aetiology of EDs is multifactorial and includes psychological
factors such as self esteem, perfectionism, and mood (DiNicola et
al., 1989;
Hewitt et al., 1995;
Sassaroli et al., 2005).
The link between eating disorders and mood disturbance is well established
in the clinical literature (Vandereycken, 1987).
However, the link between mood and abnormal eating attitudes has
rarely been investigated in sport populations (Terry et al., 1999).
Among samples of rowers, Terry et al., 1999
found that depressed mood scores predicted 9% of the variance in
EAT scores, whereby high scores on the EAT were associated with
depressed mood.
Both perfectionism and self-esteem have been linked to EDs (Hewitt
et al., 1995;
Hopkinson and Lock, 2004;
Mendelson et al., 2002).
It has been shown that individuals classified as perfectionists
are preoccupied and dissatisfied with their body shape and weight
(Ruggiero et al., 2003).
They tend to engage in excessive cognitive strategies in their pursuit
of perfection.
Personality characteristics such as perfectionism are observed frequently
by the sport community. In fact, most elite athletes strive towards
perfection (Koivula et al., 2002)
and perfectionism is a significant determinant both of elite performance
and of specific psychopathologies. Both clinical reports (Slade,
1982)
and research (Shafran et al., 2002)
have supported the claim that anorexic and possibly bulimic individuals
display higher perfectionism than non-disordered control individuals.
In the present study, we have employed a multidimensional conceptualisation
of this variable introduced by Hewitt et al., 1991.
Their model includes Self-oriented perfectionism (setting very high
standards for myself), Socially Prescribed Perfectionism (feeling
that others place unreasonable standards on one's own behavior),
Other-oriented Perfectionism (setting exacting standards for others
and subjecting them to stringent evaluation). Bastiani et al., 1995
highlighted the relevance of one or more of these dimensions in
eating disorders. In the domain of sport, Haase et al., 2001
pointed out that a high Self-oriented Perfectionism score was often
linked to eating disorders. Additionally, Vohs et al. (2001)
showed an interaction between perfectionistic attitudes and body
dissatisfaction in female athletes with low self-esteem. Self-esteem
appears to be an important risk factor for body dissatisfaction
and eating disturbance. (Fairburn et al., 2003;
Keel et al., 2001;
Sheffield et al., 2005).
Mendelson et al., 2001
established a multidimensional measure of body-esteem, differentiating
general feelings about physical appearance from weight satisfaction
and from appraisals made by others about one's body or appearance.
This distinction between the different aspects of body-esteem may
help to better understand the relationship between dimensions of
body esteem and symptoms of disordered eating. In female, Ferrand
et al. (2004)
has shown that body mass index and body esteem for appearance accounted
for a significant amount of variance in dieting scores in elite
synchronized swimming athletes.
To date, few studies have examined the prevalence of eating disturbances
in male athletes. The primary aim of this investigation was to examine
the extent to which abnormal eating attitudes are found in judo
and cycling. Judoists and cyclists were enrolled in this study because
of the importance of body weight control for performance and the
associated greater risk for eating disorders in endurance and weight-class
sports (Andersen et al., 1995;
McCoy, 1996).
A secondary purpose of this study was to examine relationships among
eating attitudes, perfectionism, body esteem, and mood states. Given
the link between eating disorders and mood disorders (Vandereycken,
1987,
DiNicola et al., 1989),
it was hypothesized that significant relationships would be found
between abnormal eating attitudes and negative mood characteristics
(tension, depression, anger, fatigue, confusion).
|
| METHODS |
|
Athletes
were recruited through national training teams. In addition, mathematic
students of a French University took part voluntarily in this study.
Questionnaires were obtained from 80 participants for a general
response rate of 75.6%. Of these, 8 questionnaires were unusable
because the respondents answered less than 20% of the questions.
The adjusted response rate was 65%, resulting in a final sample
of 52 participants.
The final sample included twelve judoists, fifteen cyclists (road
cycling) and seventeen controls. All participants signed consent
forms and received a full verbal and written explanation of the
purpose of the study, its anonymous nature, and of their ability
to withdraw from the experiment at any time. Permission to conduct
the study was granted by the University of Human Research Ethics
Committee.
All the judoists were national-level athletes, with a training history
of 9.6 ± 2.4 years. They belonged to two teams, and only competed
nationally. Their weekly training volume had been constant over
the past two years, with an average of 15 h·wk-1. All the cyclists
also were national athletes, with a training history of 8.5 ± 1.4
years, and all of them belonged to the same team. The weekly distance
covered (in which races and training were included) ranged between
600 and 750 km. The athletes took part in races each weekend, with
distance ranging from 100 to 150 km. The control group consisted
of moderately active mathematics students performing on average
2 hours of physical activity per week. None of them were engaged
in any competitive sports nor did they train for one type of sport
in particular.
The participants were asked to respond honestly to all of the items
of the questionnaires. The instructions outlined the general nature
of the investigation but made no mention of eating disorders. The
questionnaires were sent to athletes via their club with a stamped,
addressed envelope. All replies were anonymous. Approximately 2
months after the questionnaires were mailed to the clubs, the questionnaires
were resent to encourage athletes who had not replied to the first
mailing. All athletes completed questionnaires during their competitive
period. The controls received the same questionnaire as the athletes.
Anthropometry
Heights and weights of all the participants were measured at the
beginning of the study by one of the researchers and Body Mass Index
(BMI) was calculated (kg·m-2). Body Mass Index serves as an indication
for low body weight in eating disorders (Augestad and Flanders,
2002).
Assessment
of psychological parameters and lifestyle
A self-administered questionnaire was used to collect information
from the following areas: the nature and extent of athletic involvement,
training regimen, injury occurrence, nutritional habits (e.g., "How
many meals do you usually eat per day"; typical daily intake;
food frequency; nutritional supplements), alcohol consumption, weight
history, weight loss methods used, and eating-related behaviors
such as dieting, binge eating, and purging, and eating patterns
(e.g., "Do you ever feel out of control when eating or feel
that you cannot stop eating", "Have you ever eaten a large
amount of food rapidly and felt that this eating incident was excessive
and out of control"; restriction/limitation of amounts or types
of foods). Participants were asked to rate their weight satisfaction
and to state whether they wished to lose or gain weight. This questionnaire
was adpted from surveys by Cobb et al., 2003,
and Beals, 2004.
Eating
pattern was assessed with the Eating Attitudes Test (EAT-26,(Garner
et al., 1983).
Dimensions of perfectionism were assessed by the Multidimensional
Perfectionism Scale (MPS) (Hewitt et al., 1991).
Self-esteem was measured with the Body Esteem Scale (Mendelson et
al., 2001).
Finally, mood state was evaluated using the Profile of Mood States
(McNair et al., 1971).
The
French Version of Eating Attitudes Test (EAT-26, Leichner et al.,
1994)
The EAT-26 is a 26-item questionnaire validated by Leichner et al.,
1994
designed to identify eating habits and concerns about weight derived
from a 40-item original inventory (Garner and Garfinkel, 1979).
To complete the EAT-26, participants rate their agreement with statements
about weight and food. The factor dieting describes avoiding high
calorie food and pre-occupation with being thinner. Examples include
"I enjoy trying new rich foods" and "I am terrified
about being overweight". The factor bulimia and food pre-occupation
includes items that reflect thoughts about food. Examples include
"I find myself preoccupied by food" and "I feel that
food controls my life". The bulimia aspect of the factor includes
items such as "I have the impulse to vomit after meals"
and "I have gone on eating binges where I feel that I may not
be able to stop". Items on the third factor, oral control,
are related to the control of eating and the perceived pressure
from others to gain weight. Examples include "I avoid eating
when I am hungry" and "I cut my food into small pieces".
Participants rate the intensity of attitudes from six possible options
Never, Rarely, Sometimes (0), Often (1), Very Often (2), and Always
(3). The first three responses are scored zero, with the other three
responses being scored 1, 2, and 3 accordingly. A score greater
than 20 is considered to be an indicator of a possible eating disorder
problem, and individuals who score 20 or more should seek clinical
support.
Multidimensional
Perfectionism Scale (MPS, Hewitt et al., 1991)
This scale is a 45-item measure, translated and validated in French
by Labrecque et al., 1998.
It assesses individual differences in Self-oriented Perfectionism
(e.g., "I demand nothing less than perfection from myself"),
Other-oriented Perfectionism (e.g., "Everything that others
do must be of top-notch quality"), and Socially Prescribed
Perfectionism (e.g., "My coach experts excellence from me at
all times"). Each item is evaluated on a scale anchored by
1 = disagree and 7 = agree. Higher scores reflect greater perfectionism
trait. The MPS's reliability and validity have been confirmed in
both clinical and nonclinical cohorts (Hewitt et al., 1991;
Parker and Adkins, 1995).
The
Canadian-French version of the Body Esteem Scale (BES,Mendelson
et al., 2001)
The BES includes 23 items to which participants respond using a
5-point Likert scale anchored from never to always. This scale assesses
the following three dimensions of body esteem: Appearance (general
feelings about appearance, e.g., "I like what I see when I
look in the mirror), Weight (weight satisfaction, e.g., "weighing
myself depresses me") and Attribution (evaluations attributed
to others about one's body appearance, e.g., "my looks help
me to get dates"). The scale has been constructed so that higher
scores represent higher body-esteem.
The
French version of the Profile of Mood States (POMS, McNair et al.,
1971)
Mood states were evaluated by the Profile of Mood States (POMS)
questionnaire (McNair et al., 1971).
The POMS is a self-reported questionnaire which includes 65 adjectives
designed to assess six mood constructs: tension, depression, anger,
fatigue, vigor, and confusion. To Complete the POMS, participants
rate "how are you feeling right now?" on a 5-point scale
anchored by 0 ("not at all") to 4 ("extremely").
Scores on the states of tension, depression, anger, vigor, fatigue,
and confusion of the participant are then calculated.
Statistical
analysis
Following Nevill and Lane, 2007,
non-parametric analyses (Kruskall Wallis followed by the Mann-Withney
U test) were used in the statistical computations for eating pattern,
dimensions of perfectionism, self-esteem and mood state responses.
Chi-square analyses were used to determine differences between the
groups, regarding frequency of weight reduction method used, and
bone injuries. The Spearman Rank Order coefficient was used for
testing correlations among the Global Eat score (and the three sunscales
of EAT score), perfectionism, body esteem components, and mood states
for each group.
Multiple regression analyses were conducted to examine how body-esteem
components, dimensions of perfectionism, and mood contributed to
variance in global EAT score, Dieting, Bulimia and food preoccupation,
and Oral control. Although this was a limitation, we used multiple
regression analyses, which are parametric tests, because there is
no non-parametric equivalent. All statistical analyses were performed
with SPSS 12.1 statistical software.
|
| RESULTS |
|
Physical
characteristics
Physical characteristics of the participants are presented in Table 1. There were no significant differences
between the group in terms of age, weight and BMI.
Eating
behavior
Questionnaire responses on health, weight, and diet history indicated
that 65% of the athletes (judoists and cyclists) lost more than
3 kg during a season and that they consciously limited food choices
(e.g., eliminating red meats, severely restricting dietary fat,
and reducing carbohydrate intake). In fact, judoists lost 3.4 ±
0.2 kg and cyclists lost 3.1 ± 0.3 kg. Controls lost 0.5 ± 0.2 kg.
However, fifty five percent of controls wanted to lose body weight.
The athletes reported using seven different weight loss methods.
Figure 1 shows the percentage
of participants using each of these seven methods in each of the
groups. Judoists and cyclists used the more drastic methods to lose
weight including fasting (14% among judoists, 41% among cyclists)
and laxatives. Increasing exercise was the preferential method used
by the controls to lose body weight (46%).
Twenty-five percent of the judoists, 46% of the cyclists, and 38%
of controls felt pressured to lose weight. The main causes of the
perceived pressure for both groups of athletes were their coaches
(8.3%), fellow or former athletes (25%) and themselves (25%). For
the controls, the perceived pressure to lose weight was attributed
to social pressure (45%) and themselves (15%).
Participant scores of the EAT-26 are presented in Figure
2. The results show that the athletes differed significantly
from the control group on EAT (p < 0.01), Dieting (p < 0.01),
and Bulimia scores (p < 0.01). The mean Oral Control scores were
the only ones in which there was no significant difference between
the athletes and the controls. Cyclists did not differ from judoists
on any score.
Bone
injuries
Bone injuries were reported by 33.3% of the judoists (2% were identified
as stress fractures) and 27.2% of the cyclists. 8% of the controls
reported bone injuries.
Psychological
parameters
Psychological characteristic scores are presented in Table 2. The three groups did not differ on measures of Perfectionism
nor on measures of mood states. Analyses of variances revealed significantly
higher Body-esteem Appearance and higher Body-esteem Weight Satisfaction
for the controls as compared to the athletes (p < 0. 01, p <
0.05, respectively). Body-esteem Attribution did not differ between
groups.
Among athletes, significant correlations were reported between Dieting
scores and depression (r = 0.6, p < 0.001), Global EAT scores
and depression (r = 0.8, p < 0.001), and Bulimia scores and depression
(r = 0.7, p < 0.001). An interaction effect between the group
of athletes and Body-esteem Appearance and between the group of
athletes and Body-esteem Satisfaction were also noted.
Regression analyses for Dieting scores, Boulimia scores and Global
EAT scores revealed that perfectionism did not contribute to the
prediction of eating disorder symptoms in any group. Table
3 summarizes the results of the regression analyses.
In athletes, depression was the largest significant predictor of
Global EAT scores in athletes (R2 adj = 0.64, F = 7.7, β>0, p
< 0.001). Depression was also the largest significant predictor
of Bulimia scores in athletes (R2 adj = 0.73, F = 24.9, β>0,
p < 0.001).
Body-esteem Appearance and depression accounted for a significant
proportion of the variance in Dieting scores (R2 adj = 0.45, F =
6.4, p < 0.001).
Body-esteem Satisfaction was the largest predictor of Bulimia scores
in nonathletes (R2 adj = 0.45, F = 4.3, β<0, p < 0.001).
|
| DISCUSSION |
|
The
purpose of this study was to examine the extent to which abnormal
eating attitudes are found in judo and cycling and to evaluate several
psychological variables (in particular perfectionism, body esteem,
and mood), which are generally associated with eating disorders.
Garner et al., 1983
reported that a Global EAT score of 20 identified individuals at
risk of an eating disorder. None of the participants of the present
study corresponded to that category; hence they were not considered
as being at risks of EDs. This percentage (0%) is lower than the
estimate of Yates et al. (2003),
who found, using self-reported psychiatric symptoms, that one in
12 cyclists are directly affected by eating disorders. A German
study of lightweight wrestlers and rowers, all competing in low-weight
divisions, demonstrated a higher prevalence of bingeing (52%) and
subclinical eating disorders (11%) compared with non-athlete controls
(Thiel et al., 1993)
assessed by the EAT-26. Dale and Landers, 1999
suggested that male college wrestlers develop only transient eating
problems. However, comparing results from the literature is confounded
by the different methodologies used to assess eating behaviors.
Differences in how the questions are expressed, and the frequency
and duration of the behaviors involved vary so widely from study
to study that an effective comparison is almost impossible. The
level of the athletes also seems to be a parameter, which must be
taken into account (Ferrand and Brunet, 2004).
Further, conducting clinical interviews is considered more accurate
in the diagnosis of eating behaviors than self-administered questionnaires.
For practical reasons, interviews were not used in this study. However,
the EAT-26, which we used, is the most widely used standardized
measure of symptoms and concerns characteristic of eating disorders
(Hopkinson and Lock, 2004;
Mazzeo, 1999).
Sixty percent of athletes used weight loss methods, putting these
athletes at risk of developing EDs. Thus, even if the athletes did
not have a score above 20 in the Global EAT score, they did engage
in pathogenic weight loss methods several times in the year and
especially during the period of competition. In fact, purging behaviors
such as self-induced vomiting, use of laxatives and diet pills were
reported by 4%, 10%, and 8.5% respectively of the athletes (Figure 1). Kurtzman et al., 1989
indicated that 9% of the athletes in their study reported using
laxatives and/or having vomited at least once in the past year for
weight control. Skemp-Arlt, 2006
showed that bulimic symptoms were characterized by binge-eating
followed by compensatory restricting in order to prevent weight
gain.
Although previous research has tended to sum EAT scores into a single
scale, findings from Lane et al., 2004
lend support to using each subscale independently. In fact, these
authors reported that scores on dieting behaviors could influence
the composite score on EAT. Moreover, they noted that only dieting
and bulimia scores were associated with depressed mood. In our study,
the athletes had significantly higher Dieting (p < 0.01), and
Bulimia scores (p < 0.05) than the controls. Dieting is related
to an increased risk for restrictive eating and overeating problems,
as well as binging and purging behaviors. For relationships between
mood and EAT scores, our findings show that depression mood accounted
for a significant proportion of the variance of Global EAT Scores
as well as of Dieting and Bulimia scores, in a positive linear manner
(Table 3). These results, which show a significant relationship
between depressed mood and negative eating attitudes support previous
research (Grubb et al., 1993).
The link between depression and risk of eating disorders shown in
clinical environments (Herpertz- Dahlmann et al., 1995)
has yet been reported in the athletic environment (Terry et al.,
1999).
Thus, all these results suggest that mood profiling may serve as
a strategy for identifying athletes at risk of developing eating
disorders.
Our
results also showed that feelings about appearance accounted for
a significant amount of variance in Dieting scores among athletes.
BE-Weight Satisfaction is also related to Bulimia scores among non
athletes (Table 3). Body-esteem
is closely related to global self-esteem and emphasises the person's
affective evaluation of the body (i.e. feelings associated with
personal body image). Body-esteem has also been established as an
important aspect of well-being, and Berry and Howe, 2000
indicated that athletes with low self-esteem who are involved in
competitive sports might be at risk for the development of eating
disorders particularly when this personality trait is strongly linked
to environmental pressures. In our study, athletes lost more than
3 kg during the season. Moreover, 67% of the cyclists and 25% of
the judoists reported that they were not satisfied with their weight.
These athletes had body-image pressures at a number of levels, ranging
from the performance-related pressures reinforced by coaches and
team-mates. The study by Paxton, 1996
underlined the importance of perceived team-mates pressure on participants'
body image concern. This point suggests that a team environment
may provide a subculture that emphasizes the importance of thinness
though peer pressure to diet and be thin. Team coaches and others
responsible for the preparation of judoists should be encouraged
to educate themselves and their athletes on safe weight loss strategies.
Furthermore, it appears that people who diet or restrain their eating
are more aware of the social pressures about thinness (Griffiths
et al., 2000).
As also suggested by Gingras et al. (2004)
the athletes in our study may possess beliefs about their appearance
that give rise to their weight-loss efforts.
Previous researchers have recognized that perfectionism influences
disordered eating patterns (Davis, 1997),
and the tendency to hold and pursue high goals gives rise to conditions
for restrained eating (Slade, 1982).
Moreover, perfectionism, body dissatisfaction, and self-esteem have
been identified as factors that significantly affect the development
of bulimic symptoms (Vohs et al., 2001).
Contrary to our expectations, the findings indicated that Perfectionism
dimensions were not relevant in predicting eating disorders symptoms
in this sample. Athletes were no different from controls in terms
of perfectionism dimensions, this result being in agreement with
that of Ferrand and Brunet, 2004
in cycling. Thus, even though cyclists and judoists reported experiencing
pressure to control their body weight, they did not display higher
scores of perfectionism, particularly higher Socially Prescribed
Perfectionism, than controls (Table
4).
Limitations
Present limitations need to be addressed. First, as with any study
using self-reported measures, findings may be susceptible to selective
or erroneous reporting. Self- reported measures always carry risks,
especially with athletes who might not be forthcoming in their answers
for fear of being eliminated from the team if they appear to be
eating-disordered (Brownell et al., 1992).
Second, the EAT-26 alone does not yield a specific diagnosis of
an eating disorder. However, the use of a self-administered questionnaire,
which incorporates Diagnostic and statistical manual of mental disorders
(APA, 1994),
as we used in our study, increases the advantages of using this
questionnaire, which has been used in many epidemiological or screening
studies, even if each susbscale should be interpreted independently
(Gila et al., 2005;
Lane et al., 2004).
Finally, although the number of participants was small, there have
been very few studies of eating attitudes in male athletes, since
this is a relatively under recognised problem.
|
| CONCLUSION |
| Even if
none of the athletes met the criteria for EDs, they did engage in
pathogenic weight loss methods several times in the year and especially
during the period of competition, putting these athletes at risk for
developing eating disorders. This study highlights that these athletes
may tread a fine line between optimal competitive attitudes and detrimental
health behaviors. Because sports medicine providers, including athletic
trainers, physicians, and physical therapists, see athletes on a frequent
basis, they must be aware of disordered-eating attitudes and be informed
in identification of this pathology. Further research is needed to
more firmly establish the prevalence eating disorders in the male
athlete and further, extend the line of inquiry examining relationships
among measures of eating disorders, mood, and personality of athletes.
|
| KEY
POINTS |
- Prevalence
of eating disorders has become a growing concern among athletic
populations, but very little information is available concerning
male athletes.
- This
study highlights that these athletes may tread a fine line between
optimal competitive attitudes and detrimental health behaviors.
|
| AUTHORS
BIOGRAPHY |
Edith
FILAIRE
Employment: Prof., LAPSEP, UFRSTAPS Orléans, 2 allée du
Château, Orléans Cedex, France.
Degree: PhD.
Research interests: The effect of stress (training, overtraining,
dietary restriction, oxidative stress) on metabolic and hormonal
parameters.
E-mail: efilaire@nat.fr |
|
Matthieu
ROUVEIX
Employment: Student at the University of Orléans, France.
Research interests: Effect of dietary restriction and
exercice on oxidative stress.
E-mail: matthieu.rouveix@free.fr |
|
Claude
FERRAND
Employment: CRIS, UFRSTAPS Lyon, 27-29 Bd du 11 novembre
69 Villeurbanne.
Degree: PhD.
Research interests: The psychological effects of dietary
restriction and the motivation of the elite athletes.
E-mail: claude_ferrand@yahoo.fr
|
|
Christelle
PANNAFIEUX
Employment: Association Sportive Montferrandaise. 63000
Clermont-Ferrand France.
Degree: Nutritionist.
Research interests: Dietary restriction and exercise.
E-mail: Chrispanafieu@aol.com
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