From here:
The telescreen was giving forth an ear-splitting whistle which continued on the same note for thirty seconds. It was nought seven fifteen, getting-up time for office workers. Winston wrenched his body out of bed -- naked, for a member of the Outer Party received only 3,000 clothing coupons annually, and a suit of pyjamas was 600 -- and seized a dingy singlet and a pair of shorts that were lying across a chair.
The Physical Jerks would begin in three minutes. The next moment he was doubled up by a violent coughing fit which nearly always attacked him soon after waking up. It emptied his lungs so completely that he could only begin breathing again by lying on his back and taking a series of deep gasps. His veins had swelled with the effort of the cough, and the varicose ulcer had started itching.
'Thirty to forty group!' yapped a piercing female voice. 'Thirty to forty group! Take your places, please. Thirties to forties!'
Winston sprang to attention in front of the telescreen, upon which the image of a youngish woman, scrawny but muscular, dressed in tunic and gym-shoes, had already appeared.
'Arms bending and stretching!' she rapped out. 'Take your time by me. One, two, three, four! One, two, three, four! Come on, comrades, put a bit of life into it! One, two, three, four! One, two, three, four! ...'
The pain of the coughing fit had not quite driven out of Winston's mind the impression made by his dream, and the rhythmic movements of the exercise restored it somewhat. As he mechanically shot his arms back and forth, wearing on his face the look of grim enjoyment which was considered proper during the Physical Jerks, he was struggling to think his way backward into the dim period of his early childhood...
Stand easy!' barked the instructress, a little more genially.
Winston sank his arms to his sides and slowly refilled his lungs with air.
The instructress had called them to attention again. 'And now let's see which of us can touch our toes!' she said enthusiastically. 'Right over from the hips, please, comrades. One-two! One- two! ...'
Winston loathed this exercise, which sent shooting pains all the way from his heels to his buttocks and often ended by bringing on another coughing fit.
'Smith!' screamed the shrewish voice from the telescreen. '6079 Smith W.! Yes, you! Bend lower, please! You can do better than that. You're not trying. Lower, please! That's better, comrade. Now stand at ease, the whole squad, and watch me.'
A sudden hot sweat had broken out all over Winston's body. His face remained completely inscrutable. Never show dismay! Never show resentment! A single flicker of the eyes could give you away. He stood watching while the instructress raised her arms above her head and -- one could not say gracefully, but with remarkable neatness and efficiency -- bent over and tucked the first joint of her fingers under her toes.
'There, comrades! That's how I want to see you doing it. Watch me again. I'm thirty-nine and I've had four children. Now look.' She bent over again. 'You see my knees aren't bent. You can all do it if you want to,' she added as she straightened herself up. 'Anyone under forty-five is perfectly capable of touching his toes. Now try again. That's better, comrade, that's much better,' she added encouragingly as Winston, with a violent lunge, succeeded in touching his toes with knees unbent, for the first time in several years.
Why on earth anybody would pay £2,000 to be subjected to this rubbish is a mystery to me.