A hot topic in the clinic lately and been in several client discussions with Physio Emily is the importance that nutrition has on our ability to both prevent injury and to overcome injury.
Under-fueling or a low macronutrient diet whilst exercising or training reduces the amount of energy available for people to call upon and reduces your body’s ability to repair and recover. It is a major risk factor for both bone and tendon injuries.
In addition to this, it is a common misconception that after injury occurs, an athlete should reduce their intake due to lowering their daily activity level, however trauma and injuries may require up to 20% more calories (above maintenance levels) in order to repair.
Macro and micronutrients play an important role in metabolism, energy production, haemoglobin synthesis and lean mass and bone mass maintenance, immunity, health and protection against oxidative damage.
Protein.
Protein plays a crucial role in muscle synthesis and repair. Adequate protein consumption (1.4g/kg/day) distributed evenly throughout the day (rather than consuming all in one sitting) is important in maintaining muscle mass and being a protective factor against injuries.
Increasing protein intake during recovery of injury is one of the first strategies in reducing muscle loss and accelerating the healing process during the injury period.
Carbohydrates.
Muscle glycogen stores are derived almost entirely from carbohydrate intake. Muscle glycogen depletion is shown to be associated with fatigue and injury and this is considered a risk factor. Carbohydrate intake also has an influence on your central nervous system through its provision and glucose and energy source by its effect on neurotransmitter synthesis. This can have an impact on other aspects of recovery such as sleep (a fatigued CNS will impair sleep quality) or cognitive ability and thus lead to greater risk of injury or a reduced ability to recover.
Individuals involved in activities lasting less than 60 minutes need to consume an adequate amount of carbohydrates daily and pre-event meals before the start of the activity.
Fats + Pro-inflammatory + anti-inflammatory foods.
The amount of fat you consume after an injury is not as important as the types of fat you consume.
Highly processed foods can carry an inflammatory response in the body which will contribute to flare ups of pain, especially in the cases of chronic pain, or prolong periods of initial inflammation at the time of an initial injury.
Anti-inflammatory foods can help fight against inflammation which can then lower pain levels. Anti-inflammatory foods can include: olive oil, avocado, fish, flax, nuts and seeds.
Pineapple, turmeric, garlic and ginger have also been shown to have beneficial anti-inflammatory properties.
A tip on micronutrients
Micronutrients are the nutrients we get from whole foods and supplements. There are some micronutrients which can play an important role in recovery from injury such as:
- Vitamin A – supports early inflammation
- Vitamin C – enhances white blood cells and improves collagen formation during repair.
- Copper – helps with formation of red blood cells + acts with Vitamin C to form elastin
- Zinc – required for over 300 different chemical reactions within our body.
- Calcium + Iron – assists in prevention of bone fractures + healing.
Overall energy intake
Understanding our energy intake and output is a crucial element of maintaining our health and not something that should be disregarded. Ensuring that we are adequately fueling ourselves for our output demands without reducing muscle mass or significantly increasing body fat is why it is important to understand our energy demands. Chronic under-fueling will lead slow down our overall bodily processes and hence lead us to be more at risk for injury, as our body is not able to recover as quickly.
Summary
In summary, nutrition is a key player in both prevention of injury and injury recovery and often overlooked. There are arguments for why both macro and micro nutrients are important, as well as overall energy intake.
Here at the Active Balance Physiotherapy and Wellness we take a holistic approach, and ensure that we are looking at every possible contributing factor for injuries for optimal health! For specifics, it is best to speak to a qualified practitioner well versed in nutrition or a dietician, and whilst we give basic information, we can refer you to a professional if this is indicated.
Reference List
- Papadopoulou SK. Rehabilitation Nutrition for Injury Recovery of Athletes: The Role of Macronutrient Intake. Nutrients. 2020 Aug 14;12(8):2449. doi: 10.3390/nu12082449. PMID: 32824034; PMCID: PMC7468744.
- MASON P, & FRIEDMAN D (2019). Nutrition for health. Brukner P, & Khan K(Eds.), Brukner & Khan’s Clinical Sports Medicine: The Medicine of Exercise, Volume 2, 5e. McGraw Hill. https://csm.mhmedical.com/content.aspx?bookid=2667§ionid=224521906