JOURNAL OF ADOLESCENT HEALTH CARE 1989;10:3Q-M

ese

A,tWEL PEGA,

BMNUEL AMADOR, Bd.DaI PH.D.,

dy wdght, bady fat, lean body mass, and the sfficiencv index were studted in a srlnplc of 80

exercise, as cormhrated by significant diffenmces in some of ihe groups.

XRY WORDS:

Obesity Fiber Exercise Treatment efficiency

y composition

Among the goals to be achieved in treating obesity, the most important are: 1) a reduction in body weight at the expense of fat; 2) the preservation, or minimal loss, of leari body mass; 3) a loss of fat that is long lasting; and 4) a change in the patient’s life style. A reduction in fat requires a negative ener& balance, which can be accomplished by reducing en- ergy intake and/or increasing energy expenditure, for example, through physical exercise (I). Research-

Fnnn the Institute de Cien& de Ciencias M&~us, Ha~am, Cubr

and the Uniwrsity of Pennsyltmnia, Philadelphk. Address reprint nquests to: Dr. Ftuncis E. bhnston, Department

of Anthmpobgy, Unbersity of Pennsylmnia, Phbadelphta. PA 19104- 6398.

*nrrrript wepted lanuary 22, 1988.

30

ers and clinicians have devoted s the development of methods to ac

of Bean tissue, it is not be compromise

two treatment components: an increase in dietary fiber, and energy expenditure through exercise.

Eighty obese subjects (40 males, 40 females) rauging in age from 10.0 through 14.9 years were studied in a hospital for 4 weeks. obesity was diagnosed if the percent body fat exceeded 25% in boys and 30% in girls.

Prior to treatment, all of the subjects’ parents gave their written informed consent for participation in the study. At admission, each patient had a medical evaluation that included a sical examination, electrocardiogram, complete count, and a de- termination of maximal ox consumption by cycle ergonometry, as described elsewhere (2). Pa- tients were enrolled on a serial basis, with a rejection of any reflecting disease unrelated to the obesity itself.

eas ents

The following body measurements were collected on each subject: body weight; height; and the thickness of the triceps, biceps, subscapular, suprailiac, calf &infold& Au measurements were taken act ing to procedures recommended by the IInternational Biological Programme (3).

0 Society for Adolescent Medicine, 1989 published by Ekevier Science Publishing Co., Inc., 655 Avenue of the Americas, New York, NY 1t)tllO

Januapv 1989

to treatment (5).

males were &vi

cases it was ensur

e I. Mems and SD of body weight decrements by sex and group

(ten boys and fen girls in each grmp~. Group I, exercise and fiber; Group IZ, exercise; Group 111. fiber; Group IV, no exercise, no fiber. Energy Make of each group was 4.18 Mjlday.

a low-fiber and f the fourth we@

32 PE6IA ET AL. JOURNAL OF ADOLESCENT HEA

2. Means and SD of dLBh4ldBF decwments by sex and group (ten bays and ten girls in each grouv). Group I, exercise and fiber; Gmup 11, exercise; Group Ill, fiber; Gmup lV, no exercise, no fiber. Energy intake of each group was 4.18 Ml/day.

sis was rejected, pairwise comparisons were d using the Bonferroni-Dunn test.

We report here the changes in f the change in lean body mass to the

y fat (dL~~-dam). The analyses of the other measures have been published previously (7).

Table 1. Evaluation of Effects of Fiber and Exercise on Body Weight ments in Obese Girls

F

Fiber 2.958 Exercise 10.9w Interaction 4.&w

t Values of pi&wise comparisons of groups

CIOUQS Iv III II

1 3.5w 2.171’ I.046 11 2.sw 1.123

1.385

p < 0.05. “p < 0.01. ‘p < 0.001.

ment group. Table 1 presents the F ratios analysis of dBW for th teraction in girls, with

r and exerme 111 4.655, p<O.OI), but not

The pairwise comparisons revea

Table 2. Evaluation of Bffects of Fiber and Exercise on Body Weight Decrements in Obese Boys

E!Sct F

Fiber 3.124 Exercise 4.126” Interaction 2.440

t Values of pairwise comparisons of groups

Groups IV III II

I 2.6w 1.536 1.623 II 1.250 0.187

III 1.063

“p < 0.05. “p -C 0.01.

Effect F

Fiber .29O Exercise .2W Interaction .3fSl

t Values of pairwise comparisons of groups

Groups Iv m II

1 7. 6.420” 0. n 6.9&Y 7.96W

III 1.190

P al. (12) found no

olely on total body weight. is a useful criterion for as-

sessing he effect of therapy because it measures he magnitack of the loss of lean body mass per unit reduction in body fat. This is an

-dBF ratio in &is

exercise. In other words,

I M!w 12.851” 0.722 n 7&W lE.82T

Iinr 3.983”

“p -C 0.001.

an enhancement of carbohydrate

cant m~eractmn.

The authors wish to thank . Gyorgy Simon and Andrea We- goly-Merei for their contributions to the study. We also express our gratitude to Eva Gedeon for her helpful technical assistance.

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