But surely you start at the lower end weights, and move up progressively. So telling someone those weights are no good at the beginning, if those weights ARE challenging them, is counter productive as they are more likely to just not bother at all?
I'd picked up some 2kg dumbells in Aldi after Christmas, and they felt heavy at the time - I'd been doing a 10 minute pilates or aerobic video since last June, and had added in 2x400g tins of beans! So 2kgs were a big jump.
I started a gym programme in mid-January as part of my radiotherapy treatment - 24 sessions in small groups, tailored to people undergoing treatment.
I think I started off with 2 or 3kg weights in the gym, and am now up to 4 or 5kg depending on what I'm doing. That is in about 2.5 months.
In addition the PT recommended a "walking programme" 4 to 6 times a week, doesn't have to be walking but something which gets your heart rate going and working up from 1 x 1 min rep to 4 x 5 min reps over a timescale which works for you - they say 4 weeks on average to get to the 4 x 5 min.
I've been stepping up and down on the bottom step, as the weather has been rubbish so I didn't want to go walking.
I could never have done a 5 min rep at the beginning at the consistent pace. Now I do 4 of them. I'm hot and heavy breathing after 5 mins, but that is the point.
I also started off walking on the treadmill as warm up in the gym, I have always walked a couple of times a week and generally walk at about 5km an hour.
2 weeks ago I jogged for 2 mins, I haven't jogged for 5 years. Last week I did 2 x 2 mins, and went for a 15 mins walk round the block and jogged half of it.
If you'd have told me in January I needed to be using the weights being mentioned here, I don't think I'd have gone back - as I just couldn't have done it.
(And whilst I have been having treatment, I don't think my general strength was affected by that or my breast cancer - it was just rubbish to start with.)
I picked up a set of 2nd hand weights a couple of weeks ago, 4 x 0.5kg, 4 x 1.25kg, 4 x 2.5kg plus bars with are about 1.9kg each. So I can hopefully use them within my current capabilities but increase as needed.
I also got a set of 4 x 5kgs the guy was selling, which I don't anticipate needing for some time.
I've got 8 more gym sessions, but for various reasons have had to drop down to 1 session a week. I have surprised myself that I have 1) stuck to it and 2) actually enjoy it.
I don't anticipate joining a gym afterwards, but I do intend to keep up the strength training at home.
The PT has given me some full body workouts to do at home.
I've just done the 1st this morning, mostly with 4.4kg dumbells, but calf raises with 10kg plates in a rucksack and tricep rows with 6.9kg dumbells.
Anything has surely got to be better than nothing.
Edit: maybe not specifically for your booty (not something I'd ever say, want or focus on), but for general health, fitness & strength.