Of the few studies examining negative consequences associated with workloads , increases in training load led to increases in injury rates , while longer training duration was associated with a greater incidence of illness .
Conclusion The combined capacity for adolescent males to grow , train and improve physical performance highlights and underscores an exciting responsiveness to training in the football environment .
However , the capacity to train has some established barriers for adolescents experiencing high workloads , which could also result in negative consequences .
Background The expectation that training enhances performance is well explored in professional sport .
However , the additional challenges of physical and cognitive maturation may require careful consideration when determining workloads to enhance performance in adolescents .
Objective The objective of this study was to determine the state of knowledge on the relationship between workloads , physical performance , injury and /or illness in adolescent male football players .
Influence of training and match intensity on injuries in rugby league
The aim of this study was to examine the influence of perceived intensity , duration and load of matches and training on the incidence of injury in rugby league players . The incidence of injury was prospect ively studied in 79 semi-professional rugby league players during the 2001 season . All injuries sustained during matches and training sessions were recorded . Training sessions were conducted from December to September , with matches played from February to September . The intensity of individual training sessions and matches was estimated using a modified rating of perceived exertion scale . Training load was calculated by multiplying the training intensity by the duration of the training session . The match load was calculated by multiplying the match intensity by the time each player participated in the match . Training load increased from December ( 278.3 [ 95 % confidence interval , CI 262.2 to 294.5 ] units ) to February ( 385.5 [ 95 % CI 362.4 to 408.5 ] units ) , followed by a decline until September ( 98.4 [ 95 % CI 76.5 to 120.4 ] units ) . Match load increased from February ( 204.0 [ 95 % CI 186.2 to 221.8 ] units ) to September ( 356.8 [ 95 % CI 302.5 to 411.1 ] units ) . More training injuries were sustained in the first half of the season ( first vs second : 69.2 % vs 30.8 % , P < 0.001 ) , whereas match injuries occurred more frequently in the latter stages of the season ( 53.6 % vs 46.4 % , P < 0.001 ) . A significant relationship ( P < 0.05 ) was observed between changes in training injury incidence and changes in training intensity ( r = 0.83 ) , training duration ( r = 0.79 ) and training load ( r = 0.86 ) . In addition , changes in the incidence of match injuries were significantly correlated ( P < 0.05 ) with changes in match intensity ( r = 0.74 ) , match duration ( r = 0.86 ) and match load ( r = 0.86 ) . These findings suggest that as the intensity , duration and load of rugby league training sessions and matches is increased , the incidence of injury is also increased
Of the few studies examining negative consequences associated with workloads , increases in training load led to increases in injury rates , while longer training duration was associated with a greater incidence of illness .
Conclusion The combined capacity for adolescent males to grow , train and improve physical performance highlights and underscores an exciting responsiveness to training in the football environment .
However , the capacity to train has some established barriers for adolescents experiencing high workloads , which could also result in negative consequences .
Background The expectation that training enhances performance is well explored in professional sport .
However , the additional challenges of physical and cognitive maturation may require careful consideration when determining workloads to enhance performance in adolescents .
Objective The objective of this study was to determine the state of knowledge on the relationship between workloads , physical performance , injury and /or illness in adolescent male football players .