Am I overtraining?

AXA Health Physiologist Mark McGinnes looks at the consequences of overtraining and some of the signs to look out for and offers top tips to help keep your training programme on track.

To improve performance, strength, or speed whether at the gym, at home or in sport, the key is consistent training where you try to progressively overload the body¹.

We can do this by increasing the intensity of our training over time through manipulation of frequency, duration, or intensity of individual sessions. This can be achieved by:

• increasing the number of sessions in a week,
• how long each session lasts,
• increasing pace or decreasing rest times,
• lifting heavier weights,
• or increasing the number of reps you do.

However, if you overreach in your training or don’t plan in adequate recovery time to allow your body to rest and repair, it can result in overtraining.

What is overtraining?

Overtraining is when we exceed our body's ability to recover from exercise² and require days or even sometimes weeks to fully recover.

For example, if a recreational gym-goer performs ‘max out’ sessions two days in a row or a novice runner completes two marathons in two days (yes, these are extreme examples!) without rest, this could lead to injuries.

If this is repeated over time, overtraining can limit our progress, cause us to lose our current fitness levels and even be detrimental to our health.

Signs and symptoms of overtraining

1) Elevated resting heart rate³ – the rise in health tech and popularity of fitness trackers means we can track our resting heart rate throughout the day.

A decrease in resting heart rate can be an indication of improved cardiovascular fitness⁴, however if your resting heart rate increases by 10-15 beats per minute when you think it should be going down, it may be an indication of overtraining as your body struggles to recover.

2) Disrupted sleep – sleep is a vital component of physical and metal recovery from training and finding it difficult to fall and/or stay asleep is a possible sign of overtraining. This is due to your hormones and central nervous system being out of balance⁵.

3) Muscle soreness – feeling sore after a workout is natural. However, if it lasts for more than three days, it may be your body showing signs that it’s unable to recover after workouts as it normally should.

You may also be feeling aches in muscles you haven’t even trained, which is another possible sign of overtraining.

4) Poor performance – the easiest way to spot overtraining is an unexpected decline in performance. This could manifest itself in below par speeds in your training, elevated heart rates at easier training intensities or failure to lift a certain weight that once felt comfortable.

It’s natural to have off-days, but consistently underperforming can be a sign that your training may be exceeding your body’s current performance and recovery capabilities. If in doubt, modify your training to suit how you feel, or take some time out to rest and reset and reduce your training intensity – it won’t undo your previous hard work and your body and mind will thank you for it.

5) Weakened immune system – it’s normal for our immune system to be affected by training and exercise however, when over-trained, our immune system can’t recover and it can be easier to catch illnesses, such as the flu, due to your body being significantly strained by the training.

Preventing overtraining

Planning

It’s easy to lose track of how intense your sessions are if you aren’t organised. Planning your training for the week or month ahead will help you to control the intensity and schedule in rest days or active recovery sessions to help.

Keeping a record

Also, logging what times you run or the weights you lift will allow you to train more efficiently and safely. You’ll be able to see how intense the session was, and it’ll help explain if you feel slightly more tired or sore the next day.

Adapting

Adapting your sessions will also help prevent overtraining. Having a very intense session while having a stressful week at work, or in your personal life, could end up exhausting you physically and mentally.

To prevent this, why not adapt your session so it’s not as intense, whether it means training for a shorter time, not lifting as heavy weights or slowing paces.

Sometimes life can throw a curveball, making it hard to train. When this happens, don’t compensate by ‘going harder’ during your next session, train smarter not harder. Be kind to yourself and allow yourself a break from time to time.

Top tips

• Always have at least one or two rest days or low intensity sessions per week.
• Try to prioritise sleep, aiming for at least 7-9 hours of good quality sleep.
• Eat a balanced diet to give you energy and help repair your body.
• Listen to your body – and adapt your sessions accordingly.

Taking a break from moderate exercise if you constantly feel tired will do your body the world of good. It’s easy to overlook or ignore how your body feels when you’re striving to hit a target, but without enough rest and recovery you’ll only be limiting yourself in the long run.

Visit our exercise and fitness hub for more information, tips and inspiration to help get you moving more and keep you motivated along the way.

References

1. Strength and conditioning - NHS
2. Overtraining syndrome - NIH
3. Overtraining symptoms – Runners world
4. Effects of Exercise on the Resting Heart Rate - NIH
5. Hormonal aspects of overtraining syndrome - BMC
6. Recommended sleep duration - NHS
7. Sleep and physical performance - NIH
8. The Effects of Sleep Deprivation on Your Body - Healthline
9. Muscle glycogen stores and fatigue - NIH
10. What to eat on heavy training days – BBC Good Food
11. The impact of dietary protein supplementation on recovery from resistance exercise-induced muscle damage - PMC (nih.gov)
12. A Systematic Review on the Effectiveness of Active Recovery Interventions on Athletic Performance of Professional, Collegiate, and Competitive-Level Adult Athletes - PubMed (nih.gov)