-transparent.png){kind=logo}
Cardiopulmonary and metabolic variables were investigated at maximal and submaximal bicycle ergometer exercises in 41 swimmers of both sexes, 8--18 years old. VO2 max and VO2 max . HR-1 were higher in boys than in girls and increased with maturity, while VO2 max. kg-1 and HVE were not influenced by this. The HV increased clearly during this growth period, the pubertal and postpubertal subjects showing 16 and 17% higher values for HV and HV . kg-1 than those reported in normal schoolchildren populations. During the submaximal exercise at 70% VO2 max the highest HR values were found in the prepubertal group, whilst the lowest were observed in the postpubertal subjects. These findings suggest that a given percentage of VO2 max as a reference unit, is more reliable than a certain HR to obtain comparable results in subjects with different ages. Blood samples were collected before, during, and after the submaximal exercise. Blood glucose and FFA did not differ in relation to the stages of maturity. During exercise, insulin decreased in prepubertal children, did not alter in pubertal adolescents, and increased in postpubertal subjects. The lactate concentration, during exercise, increased in relation to maturity. The same results were found for HGH, but no differences were found with regard to sex. Since the pattern of HGH secretion during exercise is similar to that found after arginine and insulin administration it is assumed that the same mechanism (i.e., sex hormones) triggers the HGH release.
A Wirth, and
E Träger, and
K Scheele, and
D Mayer, and
K Diehm, and
K Reischle, and
H Weicker
December 1972,
Acta physiologica Scandinavica,
A Wirth, and
E Träger, and
K Scheele, and
D Mayer, and
K Diehm, and
K Reischle, and
H Weicker
January 2000,
Revista da Associacao Medica Brasileira (1992),
A Wirth, and
E Träger, and
K Scheele, and
D Mayer, and
K Diehm, and
K Reischle, and
H Weicker
October 2015,
European journal of applied physiology,
A Wirth, and
E Träger, and
K Scheele, and
D Mayer, and
K Diehm, and
K Reischle, and
H Weicker
June 1995,
The Journal of sports medicine and physical fitness,
A Wirth, and
E Träger, and
K Scheele, and
D Mayer, and
K Diehm, and
K Reischle, and
H Weicker
January 1973,
Acta physiologica Scandinavica,
A Wirth, and
E Träger, and
K Scheele, and
D Mayer, and
K Diehm, and
K Reischle, and
H Weicker
November 2006,
Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme,
A Wirth, and
E Träger, and
K Scheele, and
D Mayer, and
K Diehm, and
K Reischle, and
H Weicker
January 1978,
Medicine and science in sports,
A Wirth, and
E Träger, and
K Scheele, and
D Mayer, and
K Diehm, and
K Reischle, and
H Weicker
December 2003,
Medicine and science in sports and exercise,
A Wirth, and
E Träger, and
K Scheele, and
D Mayer, and
K Diehm, and
K Reischle, and
H Weicker
August 1998,
Aviation, space, and environmental medicine,
A Wirth, and
E Träger, and
K Scheele, and
D Mayer, and
K Diehm, and
K Reischle, and
H Weicker
November 1999,
Journal of applied physiology (Bethesda, Md. : 1985),
