Overhead press, where she pins her shirt to the hooks

Looking around, Jenn saw the squat rack area. In one of the racks she saw a man pick up a barbell with a large plate on each end and push it above his head.

"That seems easy enough," Jenn thought, especially as she saw the rack next to him with an empty barbell resting on some hooks around Jenn's shoulder height.

So, Jenn walked up to the rack, got into what she assumed would be the position, and gripped the barbell and pushed it up out of the hooks. Much to her surprise, the bar was heavy, especially for her shoulders, and after a few seconds of grunting to get it up she gave up and tried to put it back on the hooks.

The bar went in the hook to her right quite easily. Unfortunately, it missed the hook on her left and started falling down. Panicking, Jenn ran over to the left hook and used both hands to push the bar up to get it in the hook.

Unfortunately for Jenn, she didn't notice that the left chest area of her shirt had billowed out onto the left hook, so when she got the bar back into position it was now resting on top of her shirt, pinning her down when she tried to move.

Sighing, Jenn tried to push the bar back up to get her shirt out, but the abortive rep had sapped all her strength and she found the bar wouldn't budge even a little. Not only was this a deeply embarrassing display of her lack of strength, it also didn't help any to get her shirt, and by extension her, unstuck from the rack.