I think those techniques are unhelpful and border on abusive at times.
Putting a child on a naughty step and proving that you can keep putting him back for longer than he can keep getting off it just proves that you are stronger and more determined than he is. It doesn't help him to understand or communicate his emotions and it doesn't teach him any strategies for managing them.
Behaviour can only be effectively managed if you understand the cause of it. Once you know the root cause, you can often change it, thereby removing the need for sanctions. If punishing children really worked, nobody would have to keep doing it over and over again.
I have cared for an awful lot of children as an early years practitioner and I can promise you that patience, empathy and communication are the keys to behaviour management, not rewards or sanctions.
You might win one battle by using a naughty step to exert your will but that's all. All you gain is something to threaten the child with. Who responds well to being ruled by fear?
Children do benefit from being removed from situations in which their emotions and therefore their behaviour are out of control. That removal needs to be to a place where they feel supported to learn to calm themselves. You can then reflect together on the situation to build on their skills so they may be able to manage the situation differently next time.
Don't sit them on the naughty step to be labelled and humiliated. Sit with them on the bottom stair and work the problem through together.
Ask questions so you understand why the behaviour is happening and to guide the child through working out the solutions for themselves.
I used to work in one setting where one practitioner told the children off non-stop from the moment the arrived to the moment they left. She constantly took toys away and used sanctions. The behaviour the children offered in return was negative and largely unmanageable.
In the same sessions, I used to drip feed praise and appreciation just as persistently. If asked the children to stand in a line and then found someone to thank for standing so quietly, the whole line would be silent. If she asked them to stand in a line it was mayhem.
All behaviour is communication. Listen to what your child is trying to communicate by their behaviour and think carefully about what you are communicating by yours.