A fine balance exists between training, detraining, and overtraining. Remember that training load isn’t just the physical work being done, it includes individual characteristics and well-being. Think of your training load as a bank account. You have so much money in your account, and money is withdrawn for training stress, work stress, lack of sleep, poor diet, etc. If you withdraw more money than you have in your account, the risk of injury goes up. So, if you aren’t sleeping well, are really stressed about work, and training hard, you might be overdrawing. If you are sleeping and eating well, managing stress, taking time for self-care, and training hard, you will still have some money left in the bank. All types of stress have to be considered when measuring training load.
In conclusion, evidence suggests that too much and too little training increases the risk of injury. High training loads can lead to improved levels of fitness which in turn offers a protective effect against injury, leading to improved performance and resilience. Ultimately, building your long-term training loads without rapid spikes in the process is considered current best practice. Your local Physical Therapist can help you find the balance between injury prevention and high performance.