Your Fitness Tracker and Your Privacy

Fitness Tracker privacy is a real issue these days

Wearable fitness trackers are common place these days, and are set to become even more popular with the introduction of the Apple Watch this year. Smart clothes are already on the market, and sales of smart clothes are expected to grow from 100,000 shipments last year,  to 26 million next year! 

All this technology certainly collects an impressive set of data on you as an individual , but if you’re going to use any health data tracking devices, you need to be sure of the security of your data. Or, you could prefer to use the Rating of Perceived exertion to help regulate your pace.

Back in 2011, it was found that people’s sexual activity as recorded on their Fitbits, could be found on the net by a Google search. The problem was that Fitbit’s default privacy setting allowed users’ profiles to be found on-line. If you didn’t unclick this setting, your profile automatically become public for anyone to see whatever data was uploaded to the Fitbit site. The good people at Fitbit have since changed the default setting to be private, not public, but it’s a great example of the need to be very sure of what happens to your private data once it’s collected by any wearable fitness device.

Quite apart from the possibility of your fitness details being made public, there are some very real questions surrounding who owns the data you upload to your fitness trackers’ website, who can access this data, and what can it be used for.

Here are just a few possibilities which should compel you to check out the privacy statements of your fitness tracker supplier.

  1. Your data could be used by your fitness supplier to market other products to you – in fact I’d be very surprised if it wasn’t – not a problem in itself, as it means you’ll be shown products that will be of interest to you, but just something you might not have thought about.
  2. Your data could be sold to a third party for marketing purposes
  3. Your data could be sold to health insurers which could have a massive impact on your insurance premiums and your insurability. On the positive side, health insurance companies might ask you to supply them with your data to get a discount.
  4. Your data could be sold to life insurance companies, which has implications for insurance premiums as well.
  5. Employers might find fitness tracker data an interesting metric as part of the overall candidate selection process
  6. Your data could be used to pinpoint your location at any given time – handy if you’re lost, but not handy if you’re planning to rob a bank.
  7. Your data could be used to substantiate or refute personal injury claims

There appears to be no legislation relating to personal fitness tracker data in Australia as yet, but given the recently introduced telecommunications data retention legislation, you have to wonder……

Overuse Injuries: The Four Stages

The Four Stages of Overuse Injuries


Overuse injuries can occur in any part of the musculo-skeletal system. It doesn’t matter where the injury is, if it’s an overuse injury, the progression of the injury can be broken down into four stages. 

  • Discomfort that you feel during the warm up only
  • Discomfort that disappears as you warm up. It might come back again at the end of your training session
  • Discomfort that gets worse during the training session, and may become real pain
  • Pain or discomfort which you feel all the time, or nearly all the time, to varying degrees

When you exercise, you apply stress to your body. The body gets fitter, by adapting to this stress, by thickening and strengthening the tissues worked in training. So, muscles get firmer and stronger, tendons get stronger, bone gets denser. All good things, for the most part.

If you don’t allow your body enough time to recover, then adaptation cannot occur. Too much overload can lead to injuries and inflammation, the body’s response to injury. How much overload is too much? That’s a very individual thing, and will depend on your current fitness level, past history of injuries and how they have been treated, and how well your body recovers from individual exercise bouts.

Guidelines for running with and managing an overuse injury

If you’ve been experiencing pain or discomfort for more than a week, I’d strongly advise you to see a physiotherapist. Depending on the type of pain, or where it is, you should seek advice sooner.

  • Any pain in your calf which is associated with a buildup of fluid in your lower leg, and/or the lower leg feeling warm to the touch, should be taken to a doctor to rule out deep vein thrombosis.
  • Any pain associated with jaw, neck, shoulders and arms, particularly down the left side should also have you on your way to the doctor, to rule out heart problems!

Before we get back to your ordinary everyday garden variety overuse injury, if you’re wondering if you should run when you have a cold or other illness, you should see this article.

Having said you should consult a physio for treatment for an overuse injury, here are a few basic guidelines you can follow to determine whether or not you should quit training for a while.

Stage One

You can continue activity, as long as the condition doesn’t get worse. Keep in mind that without professional help, it may not get any better either. A physio can guide you as to what you should be doing to prevent the injury from worsening, or coming back once it’s better.

Stage Two

You can keep training if you have a stage two soft tissue injury, but your training will need to modified to a pain free level whilst the injury is being treated. For example, when I was training for my first half marathon, I developed bursitis in my hip. The pain only came on at about the 14km mark in my long runs, so for a while, I didn’t run any further than 14km. When the pain hit, I stopped.

Stage Three

If you let your overuse injury progress to stage three, you need to stop training for a while, and definitely seek treatment. You’ll probably be able to continue with some kind of cross training that does not aggravate the injury

Stage Four

You’ll need to stop training, and quite likely stop some of your daily activities which aggravate the injury. You need treatment, no ifs, no buts – and that doesn’t mean you wait till after the race to seek treatment  because you’re scared of being told not to race!

Remember that overuse injuries can occur through doing too much of ANYTHING. It’s not always the result of massive amounts of training. Many repetitive strain injuries are the result of working for too long in one position, not having breaks, and doing the same task over and over again, day in day out – think mouse use and typing, driving. I gave myself an ITB problem by sitting at my desk with my legs crossed for too long. I was doing very little running at the time, so it definitely wasn’t a running injury. The morning I woke up with it I was off to the physio immediately, and a few agonising massages later, I was back on track .

So, be on the lookout for overuse injuries which might result from your every day tasks, as well as your specific training and exercise program.

 

Running Motivation is Contagious

Running Motivation is Contagious

We’ve all either heard, or maybe used, the expression “Your attitude is contagious. Is your’s worth catching?” It’s a bit corny, even a bit annoying sometimes when you’re having a bad day and you’re quite “happy” to be having a bad day and impacting those around you!

Most of us know both intuitively and from experience that attitudes can be contagious. If someone else is smiling, you’re likely to smile, if someone around you is in a bad mood, you’ve got to work a lot harder to stay positive. But did you know there’s quite a bit of research around the topic? And it’s not just attitudes, but actions that are contagious.

A study by Christakis and Fowler as part of the Framingham Heart Study found that obesity was contagious. They found that a person’s chance of becoming obese increased by 40% if a friend of that person became obese. Interestingly, if their spouse became obese, they had only a 37% increased chance of becoming obese.

Other behaviours which have been found by research to be contagious include alcohol consumption, smoking, sleep loss, drug use, depression and rule breaking. (Hence we don’t want our kids to get in with a “bad” crowd”. Even the goal of having casual sex has been found by research to be contagious!

So, it’s probably not too much of a surprise that our behaviour is influenced by those around us, but it’s the degree to which behaviours are contagious which is so astounding.

Whilst we all like to think of ourselves as individuals with our own strong wills and own goals and desires, due to the speed with which man has evolved, we still have a brain made for a primitive world, where “catching” the behaviour of those around us would have been important for survival. Our primitive brain will likely want to give into temptation and instant gratification, whilst our higher level, “modern” brain tells us to resist short term gain for the achievement of longer term, bigger accomplishments.

When we see other people give in to temptations for instant gratification, our brain tells us it’s fine to do this. But if we see someone resisting temptation, it reinforces our goal and helps activate self control.

If you’re still with me at this point, you might be asking “What does this have to do with running? Good question.

Basically, good or bad social norms have an enormous capacity to influence our behaviour. So, if you see people turning up to training each week, on time, ready to run, you’re more likely to do the same. If your kids see you consistently making your health a priority, they are more likely to do that themselves, and turn into fit and healthy adults.

Mirror Neurons

There are neurons in the brain which pretty much mimic things we see. They’re called mirror neurons, and it’s the existence of mirror neurons which make it very hard sometimes to exercise self control. To simplify it, if we see someone do something that causes them pain, like cutting their finger for example, the mirror neurons in our brain fire, and we are able to understand and empathise with them. So the neural pathway for pain actually fires.

There’s been research conducted in this area that shows these neurons fire even if we’re watching someone in a movie. For example when smokers watched a movie with someone smoking in it, activation occurred in the areas of the brain that were in charge of moving the hand.

If we see someone having a reward, due to activity in our brain, we want the reward too. if we see someone indulging in chocolate cake, our reward area is priming itself for activation! Longing sets in, and before you know it, regardless of your resolve, you’re shoveling chocolate cake in like there’s no tomorrow!

So the moral to the tale? There really are good scientifically backed reasons for surrounding yourself with people who’s goals and desires align with yours.

We love helping people with their motivation to run. Come along to a week of free running sessions, and experience how running motivation is contagious.

Further Reading

Goal Contagion: Perceiving Is for Pursuing  Henk Aarts, Peter M. Gollwitzer, Ran R. Hassin

How to get your breath back after running?

Should you stand up straight to get your breath back?

You want to get your breath back. And quickly. Your crotchety old coach is telling you to stand up straight, when every part of you wants to bend over with your hands on your knees and keep gasping until you get your breath back. So, who’s right? The athlete who wants to bend over for a minute to get their breath back, or the coach who wants them to stand up straight to get more air into their lungs?

I’m like most people. I like good bend over to pull myself together after a hard workout. I have tried the standing up straight alternative, and it’s not good. Back in my surfboat rowing days we’d do are darnedest to stand up straight after a race, no matter how bad we felt. Not because we thought it had any physiological benefits, but because it sent a powerful message to our opposition, if we could convince them we weren’t puffed. Having tried both, I can definitely say my initial recovery is always quicker when I’m bending over.

Why would that be? It seems illogical. You want to get your breath back. You want to get more air into your lungs right? And if you stand upright, your lungs have a greater capacity for expansion, and you recover quickly. Right?

Well, yes, you probably will get more air into your lungs if you stand up straight with your hands behind your head, but are we starting with the right premise here?

Let’s look at what happens when you exercise.

  1.  Your muscles demand more energy
  2. For all but very short, intense exercise, this demand is met in an aerobic environment
  3. That means your body needs oxygen (O2) to produce energy
  4. A by-product of aerobic energy production is carbon dioxide (CO2)
  5. At lower levels of exercise intensity,CO2 is produced at a lower rate than the rate at which we take in oxygen. At very low levels of intensity, the least amount of CO2 produced is 700 mls, for every litre of oxygen.
  6. As exercise intensity increases, the rate of CO2 production increases.
  7. As intensity continues to rise, your body needs more energy, which means it also consumes more oxygen.
  8.  Consuming more O2 means producing more CO2 -remember the ratio of CO2 produced, to O2 consumed riser as exercise is more intense
  9. At higher levels of intensity the body can produce about 1 litre of CO2 for every litre of oxygen consumed-so we’re looking at about a 40% increase in the amount of CO2 produced per litre of oxygen needed to produce energy.

What does that have to do with how to get your breath back?

We have to get rid of all that excess CO2 somehow, and the main way the body does that is through expired air – that is by breathing out. When you’re exercising, your body wants to do two things (relative to your breathing): get rid of excess CO2 from the blood as quickly as possible, and re-oxygenate your blood, so that blood can be taken to the working muscles to deliver oxygen.

The limiting factor is the expulsion of CO2, not the amount of oxygen you can get into your lungs. So when you breathe hard, it’s more to get CO2 out, than O2 in.

Even if standing up straight and expanding your chest does open up your lungs to the possibility of more oxygen getting in, you need to get rid of the  CO2 first.

When you stop exercising, your body still wants to get rid of CO2 quickly, to enable it to get oxygen into the blood. Problem with this is, that when you exercise, blood goes to the working muscles. When you stop running, blood will have a tendency to stay in the leg muscles, as the muscles are no longer expanding and contracting, and working as a pump to get the blood back to the heart. The body has to get blood back to the heart against gravity, without the aid of muscles contraction.

By bending over, you are bringing your heart and lungs lower, and making it easier for de-oxygenated blood to get back to the area, ready to be re-oxygenated. 

Looking At Asthma As A Comparison 

If you’re still unsure, think about the standard treatment for asthmatics. Asthma is a condition in which breathing becomes difficult because of inflammation of the respiratory passages. Air is trapped in the lungs by the swollen airways. Contrary to how it might look, the asthmatic suffering an attack, is actually having more trouble getting the air out, than in.

A part of the standard treatment for an asthma attack is not to stand the patient up and make them put their hands above or behind their head. It’s to sit the patient comfortably, usually at a table, leaning forward on their hands or forearms.

Just take a minute to do that now. Push your chair back, lean forward onto your forearms.

Feels a bit like bending over with your hands on your knees after running doesn’t it?

So if you thought it didn’t make sense to stand up straight after you’ve finished a race, or hard work effort, you were right!

Superfoods for Running

Superfoods? What are they?

Wikepedia defines the word “superfood” as  a “marketing term used to describe foods with supposed health benefits”, and sites blueberries, as a so-called ‘superfood‘ that actually “does not have unusually dense nutrient content”.

Now, Wikipedia is not exactly the first place I’d turn to for information with substance, but I do tend to agree with this definition.  And about the blueberries?…. Blackberries can have up to twice the amount of fibre and Vitamin C as blueberries; stawberries up to 5 times the amount of Vitamin C, (but not as much fibre); and raspberries come out on top of blueberries as far as fibre and Vitamin C goes as well.

Superfood lists are best used as a reminder of the sorts of things we should be eating, rather than the last word on good nutrition. The field of nutritional science is breaking new ground every day-last week’s superfood can fast become this week’s cancer causer!

A google search on superfoods will produce over 11 million results, and whilst there will be some commonality between these articles, I’m willing to bet a lot of money, that there are a lot of different foods up there on the net being touted as superfoods. Wine and dark chocolate probably feature on quite a few of them!

Here’s one superfood list I found on the net recently, just to get you thinking.

Superfoods for Running

 

Do Hill Sprints Make You a Better Hill Runner?

I’m not wanting to be a fence sitter here, but the degree to which hill sprints will make you better at running hills depends. It depends  on how specific your hill training is to your event.

If you’re planning to race uphill over a short distance, in a race such as the Balmoral Burn, (a 420m uphill run in Sydney) then a certain type of hill repeat session will be of great benefit to you. If however, you’re training for a longer distance event such as a 5k or 10k fun run over a hilly course, then the benefit will come not so much from hill repeats, but from incorporating undulating to hilly terrain into your long runs.

Here’s a brief rundown on three different types of hill workouts, which you are probably familiar with.

Short and Fast Hill Sprints

The Workout
Run for 10-15 seconds up a steep hill as fast as you can. You should power up the hill like a sprinter exploding out of the blocks. Take a long rest of 3-4 minutes after each sprint so that you recover completely before you start the next repeat.

The Benefits
1. Activation and improvement of your neuromuscular system. This is the system which lets your brain and your muscles communicate. Training this system means you can increase the speed with which the brain signals the muscles. It also helps your muscles to activate a greater number of muscle fibres, and put more force into muscle contractions.

2. Improves Maximal Stroke Volume. Stroke volume measures the amount of blood your heart can pump around your body with each stroke (important for getting oxygen and nutrients to the working muscles). Improving maximal stroke volume results in a decrease in the number of times your heart needs to beat to pump the same amount of blood around your body, as the heart is more efficient. Hence when you get fitter your resting heart rate drops. More blood is pumped with each beat, so the heart doesn’t have to beat as quickly for the same amount of blood to be delivered to the working muscles.

Due to these two main benefits, short fast hill sprints will help you to improve your running ability overall, and will make you better at running up steep hills for 15-20 seconds, but they won’t specifically make you a better runner over a hilly fun run course.

As these sessions are of a very high intensity, they should be included in your program with caution. If you’re an inexperienced runner, it’s best to get some advice from a coach, or an experienced runner (who has had few injuries).

Longer Hill Sprints

The workout
Not strictly a sprint, a good example of this type of session is 10 x 90 secs hill repeats @ 8/10 on the Rating of Perceived Exertion (RPE). Walk or jog back down the hill for your recovery.

The Benefits
1. Improves VO2 max – this is a measure of the maximum amount of oxygen your body can take up and use (measured in millilitres per kg of body weight per minute).  It’s the gold standard when it comes to measuring aerobic fitness. By improving VO2 max, you’re training your body to run faster for longer

2. Improves Muscular Strength – you’ll be gaining running specific strength in these workouts. No exercise can strengthen running muscles quite so well as running can. Squats, lunges and hamstring curls can go some of the way to improving your running strength, but the strong contractions needed to lift your body up the side of a hill utilises hip flexors, glutes, quads and hamstrings in exactly the right way for well, running.

Longer Runs Over Undulating To Hilly Terrain

The Workout
Long steady pace training runs over undulating to hilly terrain.

The Benefits
1. Gives your body the specific stimulus to handle what it will face on the day of the fun run. You’ll be improving your form over longer and more gradual hills than if you just did flat out hill sprints. This simulates race conditions much more closely than sprinting up a hill for a short period of time.

2. Pacing – Running over hills teaches you how to pace yourself up the hill. There’s no point going so fast up the hill that by the time you reach the top you’re exhausted,  you lose form, and you find it hard to get back to a good steady rhythm. Practice maintaining the same effort (not the same pace) going uphill, as you use on the flat, and by race day you’ll be an expert on pacing yourself up hills and will be able to keep some energy in reserve.

3. Prepares you psychologically. You could run a hilly kilometer a good one minute or more slower than 1km on the flat. Being psychologically prepared for your pace to slow down is an important part of hill training.

Hill sprints and longer hill repeats, definitely have a place in a well planned training program, to help build general running fitness and strength. However, they won’t necessarily specifically help you to run faster over a hilly course.

Why not? Because of the nature of most of the hills found in fun runs. Most races encompass hills which are long and gradual, not short and steep, so if you’re training in short bursts up a steep hill, you’re training is not specific to your race. Also, you need to be able to last the whole distance of the race. You therefore need to run the hill conservatively, not belt up it at a flat out sprint.

So, the specific demands you place on your body when you run up a hill in a distance race or fun run will be quite different to the demands placed on your body during a hill sprint session. And that’s it in a nutshell. Your training should be specific to your race.

What is the Rating of Perceived Exertion (the RPE)

The Rating of Perceived Exertion (RPE) is a rating scale ranging from 1-10 that helps you to identify how hard you are working. The original scale, the Borg Scale, worked from 6-20, but was quite confusing. The RPE or modified Borg Scale is much more simple to use.

The perceived exertion is based on how you FEEL during exercise. Whilst you’re running, think about your overall levels of physical stress and fatigue. Don’t think about just one thing such as how your legs feel, or how heavily you are breathing. It’s an overall measure of how hard you are working. Try to concentrate on you overall inner feeling of exertion.

Use the descriptions in the table to help you assess what level you are running at. As you become fitter, you’ll be able to maintain a higher RPE for longer.

There’s also a kids’ version of the RPE

Rating of Perceived Exertion RPE

Rating of Perceived Exertion (RPE) for Kids

Rating Of Perceived Exertion For Kids