People always seem puzzled by vibration machines, at least that's what I've noticed at my local gym. They fiddle with the settings -- looking a little perplexed -- and then push the Start and either leap off with fright or stand and enjoy the experience.

But they rarely come back and even more rarely use the machines systematically.

The problem is that they don't know how, when and why to use them. Luckily for me, the gym keeps buying new machines to replace the old, and I keep using them.

​When I write about the benefits of exercise, I often say consistency is king. But I'm wrong. People can turn up physically but not mentally - and that's a problem because they give up too quickly.

We need to understand that being consistent is not the strategy. Consistency is a tactic. In other words, consistency is about keeping on pedalling - strategy is about heading in the right direction.

Unexpectedly, consistency has a universal strategy.

This interests me because I've seen many people be very consistent in their actions yet at the end of the day not make progress. If they understood the universal strategy behind the habit of consistency, they could have succeeded.

I train to lower my body age because at 72 I don't have much more time left to age!  At the gym, I observe many over 50s who should be doing the same, but instead, they are doing things that will make them older.

One reason is that they don't know what else to do. Another is that they believe the myths perpetuated by the bro culture - and the young trainers.

I've been successful in lowering my body age substantially.

People who workout to the beat say they do it because they enjoy it more.

I don't do it because music distracts me from being fully body-aware. If you are like me, research says that we might be missing out.

So what's the deal with music and workouts - are the majority who listen the smart ones, and crushing their results thanks to their earbuds?

​I've been training now for 20+ years, since I was diagnosed with Type 2 diabetes at 50.

I take it seriously.

Diabetes doesn't just kill you; it does it cruelly - slowly destroying your circulation. Amputations, kidney failure, blindness and dementia result from your capillaries slowly clagging up with excess sugar.

That's why I take exercise seriously as a means of managing my diabetes.

If you're wanting to share some of the fitness results of your gym time with your kids, and do it outside, I have some simple but challenging exercises for you.

My ten-year-old daughter announced that she was going to enter the school cross-country, and asked me to train her.

I was thrilled to have the opportunity to do something outside with her and something physically challenging.

Here's the little program I made for our training. You'll find it fun to do outside with your kids, or just to do something different outside, which will challenge you. These exercises are simple, require no equipment, but give you a whole-body workout, and a good burst of cardio. 

Last night was an unusual one for me. My usually painful right knee wasn't painful.

I've been scratching my head all day as to what I had changed, and I've only come up with one thing.

The results seem too immediate. Could this simple change be associated with my pain relief?

​Hate stretching after a workout, here's a smoother alternative.

I get it, you're tired from the workout, and you don't feel like spending the extra time, and anyway, stretching isn't all that comfortable.

I'm a bit the opposite, as in before running I think "oh I guess I better spend the time warming up or I will regret it" - and I do the thing. After running, I'm OK with stretching as I appreciate the benefits it brings.

No doubt stretching after a workout is a good thing. But let's face it, people don't do it.

I have some good news for you. I can't give you back the time you will need to spend, but doing this will ease your muscle aches and its not discomforting - as stretching can be.