The lactic acid after the match accumulates in the male Judo athletes of the lower percentage of skeletal muscle with over 90 kg

Abstract

[Introduction] It’s reported that body fat percentage increases with increasing weight class, with an especially rapid increase in ≥90 kg classes. Therefore, we divided the participants into 2 groups, and we intended to clarify whether weight class and body composition influenced changes in blood lactate concentration before and after the judo match.

[Methods] This study included 15 men who were divided into 2 groups: <90 kg and ≥90 kg. Body composition was measured before the match, while heart rate and blood lactate concentration were measured before and 1, 10, and 20 min after the match.

[Results] Body fat percentage in ≥90 kg was significantly higher than <90 kg, while skeletal muscle percentage and extracellular fluid in <90 kg were significantly higher than ≥90 kg. Blood lactate concentration measured at 1 min after the match were significantly higher in ≥90 kg than in <90 kg. Weight and extracellular fluid was no significant difference. However, there was significant correlation between extracellular fluid and skeletal muscle percentage, and between skeletal muscle percentage and blood lactate measured 1 min after the match.

[Conclusions] The results of study are as follows: blood lactate concentrations measured just after the match were significantly higher in participants weighing ≥90 kg than in those weighing <90 kg, and a tendency to depend on a skeletal muscle rate for was recognized.