Some use them only on the descents.
Some use them only for water crossings.
I use them for most ups and downs but I will stow them for road walks, generally, or the Wilderness Trail.
Tim
On most ascents they help as the knees don't get as tired. On descents the weight transfer is even more obvious. On road walks at times I carry the poles in my hands or over my shoulder, I guess I have gotten used to holding them. Not concerned on a road walk of having a free hand.
In the 2nd or 3rd Joe Simpson book, he is on his way into a remote peak & is resting his knee (the one busted in SA detailed in Touching The Void) when a group of trekkers comes by. One trekker asked where his poles were & he basically said they were for sissy trekkers. She then rattled off some numbers on the thousands (or more, I should reread the books - found three of them but not the right one) of foot pounds a 15 mile hike has & how transferring just 10% of your weight from your knees and ankles moves a seemingly unbelievable amount of weight off your knees. (The transferred amount is in the tens of thousands of foot pounds over the course of a long day hike)
Additional content:
Found this on a website (Disclosure, they are selling hiking sticks)
KLETS Study
According to a study by the KLETS group (Ken Ledward Equipment Testing Service), the amount of weight that is saved from the lower half of your body by using a trekking pole each hour is remarkable. Using the amount of weight transferred to each leg (a number that appears, for most people to be around 5-9 kg), the number of pounds transferred with each step over the course of an hour with and without a pole was calculated. According to the KLETS study, the following numbers were found:
- 5kg weight transfer will produce a saving of 37.40 ton per hour.
- 6kg weight transfer will produce a saving of 44.80 ton per hour.
- 7kg weight transfer will produce a saving of 52.36 ton per hour.
- 8kg weight transfer will produce a saving of 59.85 ton per hour.
- 9kg weight transfer will produce a saving of 67.33 ton per hour.
The full report can be seen here (
http://www.klets.co.uk/walking_pole_report.pdf), but the result shows that, due to the average person’s body weight, the pressure they put on each foot with each step, the number of steps that they take and the weight that is taken off of their feet by using just a single walking pole, the average person can reduce the weight on the lower half of their body by roughly 50 tons each hour, or 100,000 lbs.
Over the course of an entire trip, this number adds up even more, and does not include the amount of weight saved by getting more support walking up and down steep hills, which can put more pressure on your feet and joints due to the increase in gravity.
What are the Implications?
URL:
http://www.walkingsticksguide.com/trekking-pole-weight-legs.htm