par Pat G le 27/08/2008 08h48
la voici
posté sur le forum de MD par Gundill
but less muscles
This reminds me of what happens during a bulking up period
Are overweight boys stronger than normal weight boys?
Fernández García,
An increase in regular physical activity (PA) behaviour, particularly vigorous
PA, is important to prevent childhood obesity. Traditionally, children prefer an
intermittent pattern of PA. In order to achieve a good performance in these
types of exercise, great levels of explosive dynamic strength (EDS) are needed.
Objective: The aim of this study was to compare EDS and (IS) isometric
strength between normal (NB) and overweight boys (OB).
Methods: Seventy-five boys were recruited (14.8±1.9 yrs; BMI 22.9±4.4
kg.m-2; %FM 22.8±8.4%). Children were considered overweight based on the
body mass index (BMI) age-specific cut-off points; skeletal muscle mass
(SMM) and fat mass percent (%FM) was estimated by anthropometry; SMM
index was calculated (kgSMM.m-2). To assess EDS, a countermovement jump
(CMJ) was used. IS was assessed with a dynamometer for hands (ISH) and
lower limbs (ISLL). PA behaviour was determined using questionnaires.
Maturation was assessed by photographic models. Independent sample T-test
was performed.
Results: NB were better on CMJ, 32±7vs26±5 cm and logSMM index,
1.22±0.1vs1.13±0.1 N.kgSMM-2, also log%FM was lower 1.24±0.1vs1.47±0.1
(p<0.001). OB had better performance on ISH 0.94±0.24vs0.72±0.20
N.kgSMM-1; and ISLL 2.06±0.60vs1.58±0.57 N.kgSMM-1 (p<0.001). No
significant differences were found in maturation and PA.
Conclusions: The main finding of this study was that OB presented a higher
levels of IS, although their SMM index and CMJ were lower. These results
suggest that an overload due to an excess of %FM should be a stimulus to
increase IS, since habitual PA is performed with overload. More research is
needed to fully understand this relationship.
t'as pas mal ! j'ai pas mal !
t'as pas mal ! j'ai pas mal !
Rocky IV