Tri-dip body weight %?

beefjerky

Yo!
Quick question...

After a bit of googleizing, I found that by doing a full press-up, it is roughly 75% of your bodyweight, but i cannot find the same info for tricep dips (hands on a seat, feet on the ground).
Some sites suggest placing hands on a weighing scales but i don't got one!

Anyone any ideas on what it is roughly or a calculation for it?

Cheers

ray jay

take your feet off the ground, that way you know you're lifting your whole weight

rubadub

ray jay wrote: »

take your feet off the ground, that way you know you're lifting your whole weight

Not exactly as you are not lifting all of your arms. I saw some figure for pullups/chinups, it was in the 90%'s. I would advise normal proper dips though if you can manage them, if not I would do negatives.

beefjerky wrote: »

Anyone any ideas on what it is roughly or a calculation for it?

It would depend on how high the seat is. I am 86kg and did one on a scale behind me just now but could not see the dial, I turned around and did a pushup on the scale with my body as vertical as I could manage to mimic the other position, it read 70kg, which is 81% acting on the scales (this does not mean I am lifting all that, just like the chins. The box was about 16inches off the ground.

But why do you want to know? if you are thinking of doing weighted work and so want to increase resistance by say 10% then it depends where you place it on your body. If the added weight is added to your feet it is easier than putting it on your lap.

Or are you trying to equate it to something else? e.g. I have heard people trying to compare pushups to benching, a pushup shows 75kg on the scale for a 100kg man, that certainly does not mean he can bench 75kg for the same reps!

beefjerky

rubadub wrote: »

Not exactly as you are not lifting all of your arms. I saw some figure for pullups/chinups, it was in the 90%'s. I would advise normal proper dips though if you can manage them, if not I would do negatives.

It would depend on how high the seat is. I am 86kg and did one on a scale behind me just now but could not see the dial, I turned around and did a pushup on the scale with my body as vertical as I could manage to mimic the other position, it read 70kg, which is 81% acting on the scales (this does not mean I am lifting all that, just like the chins. The box was about 16inches off the ground.

But why do you want to know? if you are thinking of doing weighted work and so want to increase resistance by say 10% then it depends where you place it on your body. If the added weight is added to your feet it is easier than putting it on your lap.

Or are you trying to equate it to something else? e.g. I have heard people trying to compare pushups to benching, a pushup shows 75kg on the scale for a 100kg man, that certainly does not mean he can bench 75kg for the same reps!

Thanks rubadub.

The reason I am asking is, I'm working out at home at the moment and would just like to know roughly how much weight I am "lifting" with a tricep dip for my log, I know it will never be specific and there are many variables that could change it on a day by a couple of kg up or down, just wondering about a rough number... I am 88kg and the chair is 17inches from the ground.

I guess it would be better with a tridip to concentrate more on the number of reps than the weight and try to beat my previous reps right?

Thanks again!

ray jay

personally I don't try to figure out the actual weight lifted when I'm doing bodyweight exercises, I'll just record the sets and reps and any extra weight I add

rubadub

beefjerky wrote: »

I'm working out at home at the moment and would just like to know roughly how much weight I am "lifting" with a tricep dip for my log

I would just stick your BW down in the log, I list mine the odd time in my log if I think it is changing.

beefjerky wrote: »

I guess it would be better with a tridip to concentrate more on the number of reps than the weight and try to beat my previous reps right?

Thats what I do. My reps are more or less the same in my log but I have gone up in weight. The reps are what is important, if you had blank/unknown barbells you would track them the same way, if your reps are going up you are getting stronger. What I do use is calculators like this one

http://www.naturalphysiques.com/tools.php?itemid=18

So if I can do say 15 chinups and I want add weight to be around the 10 rep range, then I enter 15 reps at a BW of 86kg (just presume it is 100% of BW for a chin for ease of calcuating). This tells me I should be able for 10 reps at 106kg, so I should add 20kg to my dip belt to make up 86+20=106kg.

If I was doing pushups and could do say 15 @86kg then that is 75% BW weight so 15reps @ 64.5kg. The calculator says I should be able for 80kg @ 10reps. This is where it gets complicated! From the calculator it seems I need 80-64.5kg=15.5kg extra. But if I add 15.5kg right at the top of my head and put my hands on a scale it might show 80kg, but if it is lower down my body, like resting on my back it will show less on the scale, due to leverage effects, just like pressing normally on the scale will show only 75% of BW.

In this case it is better to ignore the 75% thing, just enter 15@86kg so again I get 20kg to add. Now if I add this near my centre of gravity, e.g. a 20kg plate in a back pack it is likely that if I press down on a scale it will show ~80kg. These are all rough estimates anyway.

G86

Why don't you try doing the tri dips with your feet on another bench instead of on the floor? It's a fair bit harder.

beefjerky

Great stuff, thanks for that link rubadub, really useful.

G86, I will change it to 2 chairs and see how it goes... this would target more of the shoulders as well, am I right to say that?

G86

beefjerky wrote: »

G86, I will change it to 2 chairs and see how it goes... this would target more of the shoulders as well, am I right to say that?

I'm not too sure to be honest, but my PT advised me to do it as a progression from the tri dips with feet on the floor after I'd been doing them a while and I always do them that way now.

Just make sure the chairs are steady!:pac: