Bruin gave his two friends a little smile, noting that they didn't appear too happy about their chin-up attempts. "Hey you two, chins up. Nothing good in life comew without a little effort." he said, trying to sound motivational. "Alright, maybe chin-ups wasn't the best exercise to start with..." Bruin pulled out his wand, pointed it at his broom and lowered it until it was hovering approximately 3 feet above the ground, secretly quite pleased that his practice on the hovering charm had paid off.
"Okay, this is a modified push up." Bruin stated matter-of-factly, as he walked over and grasped the broom handle with his hands and his arms straight out in front of him about shoulder width apart. Bruin gradually shifted his feet backwards until his body was at about a 45 degree angle to the ground, still holding on to the brrom handle. This time he bent his elbows and allowed his body to be lowered towards the broom and then straightened his arms again, effectively pushing himself away from the broom again.
"As you get stronger, you can lower the bar or even lay face down on the ground and use your arms to push you up and down. Make sure to keep your back straight too. This is good for all of your core muscles, not just your arms." Bruin said, looking at the other two and wondering if they had any interest in continuing.