Ice baths: When to Use Them & What For
Should rugby players use ice baths after training?
It depends on the situation. If you have a game coming up and need to be ready, ice baths can help reduce swelling and tissue breakdown, making them useful. However, if you are trying to maximize muscle and strength gains without a game to prepare for, ice baths might not be beneficial.
WHAT EXACTLY DO ICE BATHS DO?
There are three main effects ice baths have on our bodies:
Reduce acute inflammation
Reduce the activity of pro-inflammatory immune cells
Induce vasoconstriction (reduces blood flow)
How do ice baths affect muscle growth?
Ice baths can reduce inflammation, which is necessary for muscle growth. While they don't necessarily stop muscle growth, they can slow down the process because inflammation helps the body adapt and build muscle.
The timing of when we use ice baths around resistance training is really important:
When lifting weights we create small tears in our muscles (micro-tears). Think of it a bit like when you get a paper cut, the same thing happens to our muscles during resistance training.
The body uses similar processes to repair and grow muscles after resistance training, as it does to start healing after a paper cut.
This means that the inflammatory response following lifting is critically important to actually grow your muscles.
By waiting at least 2-4 hours post resistance training before using an ice bath we allow the body’s natural inflammatory response (important for muscle growth) to occur before applying cold therapy to reduce soreness and inflammation. This means we don’t counteract the intended work of the resistance training but also get the recovery benefits of cold immersion.
When is it recommended for rugby players to use ice baths?
Ice baths are can be really helpful in the following situations:
When you have a game to prepare for - especially if you are coming off the back of a high training load
When you are sore and want to reduce DOMS - cold water immersion has been show to reduce soreness following exercise. This can be advantageous for athletes with intense schedules by helping them feel and perform better in back to back training.
If you are recovering from an injury - the cold causes blood vessels to constrict, which decreases inflammation and slows blood flow, helping with pain relief and swelling.
Are ice baths useful for maximizing strength and muscle gains?
No, ice baths are probably not the answer if your goal is to maximize muscle and strength gains, as they can slow down the inflammatory response needed for muscle growth. Ice baths also slow blood flow which could cause a reduction in muscle protein synthesis (the process of producing new muscle protein). When you’re progressing your strength workouts, you’re training your body to adapt to the work and grow stronger over time, but cold plunging could essentially stall that momentum.
What should determine the use of ice baths for rugby players?
The use of ice baths should depend on your goals for the training week or training block, such as whether you need to recover quickly for a game or focus on building muscle and strength.
In Summary
Ice baths can be useful for rugby players when recovering from injury, aiming to reduce soreness or preparing for a game, as they help reduce swelling and tissue breakdown, aiding recovery between training and match days. However, if the goal is to maximise muscle and strength gains without an imminent game, ice baths may slow muscle growth by reducing the inflammation needed for muscle adaptation. Therefore, the use of ice baths should depend on the player's training goals and timing within their training cycle.
