We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
My opinion: That is not a strength-building workout but it isn't a bad simple calisthenic workout for those who must exercise on their living room floor and have no access to fun calisthenic toys like kettlebells, heavy balls, pull-up bars, jump ropes, floor ladders, step-up boxes, etc.
Still, I'd say that that circuit repeated for 45 minutes would be an ok calisthenic workout. 9 minutes is nothing. Calis do not build strength but they certainly help maintain vigor. In other words, 45 minutes of that is a heck of a lot better than sitting on your ass.
We stand by our recommendations: Resistance + Calis + Cardio for overall fitness for life.
I started doing strength training a little over 2 weeks ago. I can already feel the difference in the levels of pain I usually have in my hips, knees, shoulders and feet. A lot less pain. I work in a bakery, and it involves moving and lifting a lot of weight, but doing deep squats with a kettle bell, and dumb bell curls has really helped with the hip and foot pain. I'm feeling a lot better overall. My workout schedule is 3 times a week for 45 minutes each day.
I think it depends on how much you currently workout. Calisthenics can be a good strength building exercise for those starting from nothing. My wife currently does no strength building exercises what so ever and am currently trying to get her to do at least a few push ups, bodyweight squats and kettlebell deadlifts as a starting point. I am trying to get her to gain some strength and therefore some confidence in herself so that she can move on to some barbell work. As a lifestyle I still think barbell work as well as calisthenics on non lifting days is the way to go.