Push-ups on chairs and bent over DB rows: mostly shoulders?

Hello folks,

I am counting on your expertise to help me with something. I am a beginner and am following the following workout:

- Chin-ups
- Lunges
- Push-ups with hands and feet on chairs
- One-arm bent-over DB rows
- One-leg straight-leg deadlifts
- Chest flys

The two exercises in bold are what I want to discuss. I do the push-ups for chest and triceps, and since usually triceps get tired first I do the chest flys to finish the chest. Today however, noticed that my shoulders (anterior deltoid) gave up first. I don't go way below the plane of the chairs, just a little, and my torso and legs are completely straight.

The one-arm bent-over DB rows on the other hand feel good but in all honesty when I couldn't do them anymore it appeared it was because of my triceps (). I have since thought a bit and looked at exrx.net and it probably was the posterior deltoid that failed.

So here is my question: do others who do these exercises also feel that (despite information on exrx.net) they really hit the shoulders? If not, what am I doing wrong?

Thanks in advance.

Can't say I have.
For pushups, they do warm up my shoulders, but have never given in. As for rows; For me, they're all I need to work the back side of my shoulder, but again, it has never given in.

Rows can be difficult to get the hang of, basically though keep the dumbbell in front of the standing leg so your not bringing it up the leg but just in front, keep your elbow tucked toward your body so it doesn't flail out towards the side and don't try and bring the dumbbell up to far towards your chest as I find this puts extra pressure on the arm. Also try and flex you lats while your doing it. Works for me so give it a try

If your shoulders can take it, yes.