Overtraining is. But common sense would tell you that overtraining at an early age could easily have a negative effect. Part of the problem with this is it's a subject for which you could never have a perfectly controlled experiment, since there are so many variables that feed into growth. What’s next. Rest & recovery habits – poor sleep patterns, not enough muscle recovery, & overtraining . No: This is a common myth but there is no evidence that moderate exercise will stunt growth. The overtraining syndrome can be defined as a “series of psychological, physiologic, and hormonal changes that result in decreased sports performance.” 6 Common manifestations may include chronic muscle or joint pain, personality changes, elevated resting heart rate, and decreased sports performance. While many factors can contribute to overtraining, there are two main causes, which are actually quite simple.Too much exercise without enough recovery is a big reason why overtraining occurs ().To push your body to the limit requires just as much recovery time to heal strained muscles and recharge those energy levels to safely and effectively hit the next workout just as hard. I know each body’s different, but i get worried cz nearly all my friends are now over 175 and im still 168 and we’re all in grade 10. It's well proven that exercise does not stunt growth. Excessive inflammation from overtraining can result in muscle fatigue, loss in muscle protein, loss of muscle mass, and reduced muscle function. The fix: White suggests shooting for 1.2 to 1.7 grams of protein per kilogram of bodyweight each day. However, before you throw in the towel, you should know that your calf-to-cow trouble could be the result of some easily fixed calf-training mistakes. This is why olympic gymnasts are often extremely short, they start at such a young age and are forced to train over 5 hours a day for years. Sports are not what stunt growth. Inadequate nutritional intake or overtraining can … However, long term, repeated exhaustive exercises can evoke pathological reactions leading to the development of overtraining syndrome  . This is an interesting question. Ahead we’ll break down these three sections – training, diet, & recovery – in detail. We’ll identify what mistakes commonly occur so you can take care of them and … Overtraining can lead to injuries In previous years, the school of thought was that overtraining a developing athlete could damage the body’s growth plates and may in fact stunt growth. “If you don’t consume enough amino acids it can hinder your muscle growth,” warns White. Very few muscle groups can be as stubborn to grow as your calves, and a constant lack of progress might compel you to stop training your lower legs entirely and put your own calves out to pasture. 3. It's also well proven that the ONLY thing that does stunt growth is improper nutrition. October 17, 2009 at 2:25 PM The fact that most of my friends have had their major growth spurt in 8-9th grade and im today in 10 th grade and still haven’t passed 170 cm literally creeps me out.