Must exercises for senior

Wheels of Happiness

I have seen my brother in law, only 3 years older than me, having difficulty and even emergencies at times because of leg and thigh weaknesses.   So it must be caused by lack of exercises.

So it is best to have must exercises:

1.  Sit ups

2.  Lunges, 

3.  Push ups

YT on senior exercies

https://youtu.be/QszUINYIg_0?si=2qBWV7T6jC5vHhTE