Sunday, March 24, 2013

Bushwalking Fitness | Am I getting fitter?

How can you tell if you are getting fitter? Do you need to buy a heart monitor? Can your smartphone tell you? Can body composition weighing scales help?
My last three posts (see below) discussed how to plan a "get fit for bushwalking" program, how to make sure that each session is effective and that you are not doing more damage than good........ but is it working?

If you are not technology-minded, then it's easy; simply check your watch to see if you are getting any faster on a fixed route. If you enjoy using technology, then it can be a great motivator to watch the improvement, but take great care, as a single score, without supporting data, is often unreliable.

Some signs that you are getting fitter include:
  1. Heart Recovery Rate increases
  2. Resting Heart Rate decreases
  3. Time to complete a fixed route decreases
  4. Average Heart Rate for the route decreases
  5. V02max increases
  6. Metabolic Age (yrs) decreases
The absolute value of these readings will most likely depend on your age, gender, your level of general fitness prior to starting, your health and individual characteristics, which are often inherited.  In addition, there is often wide variation from day-to-day and controversies about the formulae used to calculate your score and its relevance to you. The message is....... Don't rely on one measurement to predict your fitness.

There are many different formulae to calculate your maximal heart rate, so if you find the popular (220 - age) doesn't work for you, then try one of the others, which are likely to be more reliable, as they are based on research, unlike the "old standard". As an example of the difficulty of interpreting individual scores, there is a general observation that fit people have a lower resting heart rate (less than 60, and even as low as 28 bpm), but there is an enormous variation between elite athletes, even in the same sport, and a very low heart rate can indicate that your heart is malfunctioning. Resting heart rates decreases with age too, at about 0.5 bpm/year.

Despite the problems with individual measurements, trends in body measurements are usually very reliable, especially if the measurement is done at the same time of the day and in the same situation each time eg on first rising  or after climbing the same hill.

If you use a heart rate monitor, trends are often plotted as graphs or can be uploaded to an associated website and viewed. Smart phone and tablet apps can record and graph your results. ( see next post).

The first three tests of your fitness (1,2,3) are easy to perform, require little equipment  and yet are very reliable indicators of fitness level. Average heart rate and VO2max (4, 5) require a heart rate monitor (HRM), while metabolic age (6) requires body composition scales. When the trend you are observing is backed up by another fitness measurement, you can be confident that the trend is real.

Additional records that many people keep, which give indirect measures of fitness trends, are:
  • Body fat % (calipers: skilled, scales: easy)
  • Waist measurement( tape measure) better than BMI
  • Body weight (scales)
  • Body Mass Index (BMI): not reliable
My next post will look at the technology needed to make these measurements; smartphone apps, heart rate monitors and body composition scales.

Related posts

Bushwalking Fitness | Stretches for bushwalkers
Bushwalking Fitness | Is stretching a waste of time?
Bushwalking Fitness | Planning a training session
Bushwalking Fitness: all posts (9)

Saturday, January 5, 2013

Bushwalking Fitness | Stretches for Bushwalkers

Which muscles do bushwalkers use? Which are the appropriate static and dynamic stretches for bushwalkers to do? How should I perform each stretch?
Disclaimer: I have no training in sports medicine nor am I an elite athletics coach, so the advice given below should be discussed with a professional and modified to suit your age and fitness, or you can read the links to the research I have provided and decide for yourself.
Here are some of important muscles used in bushwalking, although most experts will tell you that bushwalking with a pack and walking poles gives just about all muscles a thorough workout.
  • Glutes: support body weight plus pack
  • Quadriceps: descending
  • Hamstrings: more important for bush walkers than runners
  • Calves: intensity of use varies with terrain, climbing
  • Abdominals: assist with posture, help you avoid back injury, stabilise pack
  • Middle and upper back muscles: stop pack swinging from side to side
  • Lower Back: for lifting and loading the pack
  • Obliques: scrambling
  • Ankle and Knee Complex: support body and pack weight
  • Inside and Outside Thigh
  • Hips: support body and pack weight
  • Neck (trapezius): support the pack weight via shoulder straps
Source: Fitness Blender Calories Burned Hiking – What Muscles are used in Hiking?

iMuscle is a great iPhone/iPad/laptop app which shows all the muscle groups and exercises associated with them.

Here are a selection of stretches for both before and after a bushwalk, recommended by three highly regarded fitness websites. Use the links provided, in the first column, to see how to do them or download one of the recommended posters or brochures, which I have cross-referenced. A search within YouTube for the particular stretch, will produce some excellent videos. You only need to select 5-10 minutes worth, and can vary these from session to session.



Many experts say that pre-exercise stretches should mimic the actions about to be performed (sports-specific) to get maximum value, while others says that each of the muscle groups should be stretched (generic). As most muscles groups are involved in bushwalking, especially with poles, I have adopted a generic, whole body dynamic warm up, as seen above, which can be done in 6 minutes, with no equipment.
  • While learning this dynamic stretch routine, you can download and play this video on your smartphone or tablet.If 6 mins is too short, you can repeat the routine or add some of the dynamic stretches below.
  • Take care when selecting dynamic stretches from websites/posters/brochures as some are really static stretches (held at maximum extension) rather than dynamic.
  • After your walk, when you are thoroughly warm, you  should select some of the static stretches from the list below. Some will be more appropriate in an outdoors setting and others should be selected to target specific areas of soreness.
  • For a sample training session, see my previous post. Bushwalking Fitness | Planning a Training Session
Click the links below to see either a photo or video of the stretch.

Dynamic Stretches, during warm up, after a low intensity 5 min walk.
Type
D


D


D


D


D


D


D


D


D


D


D


D


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D


D


D


D


D


D


D


D


D


Pointers
D


D


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D


Static Stretches, during cool down, after a 2-5 minute slow walk.
Type
Peak performance
S


S


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S


Hamstring Stretch (1) (2) (3)
S


Calf Stretch (1) (3)
S


S


Abductor Stretch (1) (2) (3)
S


S


S


S


S


S=Static Stretch for during cool down D=Dynamic stretch for during warm up




























































References

Stretching posters and pamphlets
  1. Start Stretching Guidelines Poster (2 pages) (American Heart Association)
  2. Fact Sheet 3 Warm Up Guidelines (4 pages) (SmartPlay www.smsa.asn.au)
  3. Sports Medicine Australia Warm Up (poster) (SmartPlay smartplay.com.au)
Muscles in hiking
Brian Mac
About.com (moderated)
Peak Performance
Related posts

Bushwalking Fitness | Is stretching a waste of time?
Bushwalking Fitness | Planning a training session
Bushwalking Fitness (9)