HWHR Macros for Midlife
Have you ever considered what YOUR protein, carbohydrate, and fat needs are as you move into midlife?
In this episode we explore some of the natural physiological changes of ageing and how these changes may impact on a female runner and her macronutrient needs.
We delve into the loss of lean body mass and the increase in fat mass and their impact on running performance, risk of injury and the development of certain health conditions.
BUT, it isn’t all negative, we also explore how nutrition, lifestyle and your running could support YOU in transitioning through midlife healthy, fit and injury free so you can continue enjoying your running into old age.
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Introducing 2 key physiological changes occurring with age before moving on to discuss them in more detail:
- Loss of lean body mass (muscle and bone)
- Increase of fat mass
- Peak bone mineral density (BMD) achieved by the age of 25yrs – 30yrs
- Reduction in BMD begins at 45yrs of age for women and 50yrs of age for men
- BMD reduces by approx. 1% per year in women and by approx. 0.3% in men
- Weight bearing exercise is known to support BMD
- Loss of muscle mass is by approx. 1%-3% per year
- Loss of muscle mass increases to approx. 50% from aged 80yrs
- Loss of muscle mass thought to decrease by 3% per DECADE from aged 30yrs
- Strength exercise is known to support muscle mass
- Fat mass increases in people during their 50s and 60s
- Fat mass begins decreasing from age 70yrs onwards
- Hormonal changes thought to be the principle driver of weight gain in women
- Fat gain is thought to be less in runners (and other active people) compared to their sedentary counterparts.
Moving on to discuss the impact of the physiological changes of ageing on a female midlife runner including:
- Increased risk of stress fracture
- Increased risk of developing osteopenia and osteoporosis
- Reduction in muscle strength
- Increased risk of injury
- Reduced motivation for running
- Low energy
Now considering the individual macronutrients (protein, fat and carbohydrate) and a midlife female runner’s energy needs for each:
Reduced carbohydrate need due to:
- Lower metabolic rate
- Potential for weight gain
- Decline in the way carbohydrate is digested
Some tips on how to adjust carbohydrate intake are also discussed.
No change to fat need:
- Remains at 20% of overall macronutrient intake
- Should contain minimal saturated fats and negligible trans fats
- Should contain mainly unsaturated fats including Omega 3 and 6 essential fats
Increased Protein need:
- Individuals over 50yrs require 25% more protein
- Optimal intake would be between 1.2-1.7g/Kg of body weight
- Optimal intake would depend on demand for muscle repair, muscle remodelling and muscle adaptation of the runner
- The ageing process is inevitable, but diet and exercise are key lifestyle factors that could help slow down the physiological changes associated with it
- As we get older it is worth considering our exercise regime so it incorporates both strength and aerobic exercise to bone AND muscle mass
- Remember we lose approx. 1% of bone mass per year and 1-3% of muscle mass from midlife onwards.
- Some weight gain is inevitable as we age due to hormonal changes, however the degree of weight gain is within your control.
- As we lose muscle and bone mass we become more susceptible to injury and health conditions including osteopenia and osteoporosis. Being mindful of WHERE we run to prevent any falls occurring may limit our exposure to fractures, but also to muscle and other soft tissue injury.
- As we age our energy needs reduce so it is important to adjust our macronutrient intake accordingly to help minimise weight gain, especially considering adjusting CHO and FAT intake.
- Remember we require up to 25% MORE protein to support muscle building and strength.
- Finally I would say that as we advance in years we can do so healthily and gracefully, if we are willing to make some tweaks to our lifestyles….so we can continue to enjoy our running from mid life into older age and the HWHR can provide the platform on which you can begin YOUR journey. A great way to start would be to join us on our next FREE online HWHR training, which is planned for 29th April 2021. All you need to do is click on the booking link at the top of the show notes. If you are listening to this after the end of April, click on the link anyways as we update it with the next training date for you.
The suggestions we make during this episode are for guidance and
advice only, and are not a substitute for medical advice or treatment.
If you have any concerns regarding your health, please contact
your healthcare professional for advice as soon as possible.
Aileen Smith and Karen Campbell met at as nutrition students (Institute for Optimum Nutrition, London) and became lifelong friends and nutritional buddies! Both have a love of running and a passion for nutrition, delicious food and healthy living.
Together they host RUNNERS HEALTH HUB. A place for like-minded runners who are looking for simple ways to support running performance, energy, endurance, and general great health.
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