Geracimo, an Australian former elite triathlete, introduced Adele to regimes that actually got her liking the gym.
The mother-of-one is thought to have lost at least 14kg after teaming up with the manager of swanky $12,200-a-year gym KX, in Kensington, West London.
He has got Adele to work out with weights (which she says she likes), a tough circuit regime called the Modified Strongman Workout and a punishing, high-intensity program called Tabata (which she says she really doesn't like).
Talking about his style of training, Geracimo has revealed: "Modified Strongman Workout is one of the fastest and most efficient ways of getting results. It trains a wide cross-section of muscle groups and is very effective in boosting your metabolism and fat burning."
Specialising in "transforming the average under-conditioned person into a healthier and cardio-fit machine", Geracimo's training techniques include circuits, high-intensity workouts, hill sprinting and working out in water.
Adele has repeatedly made clear her feelings about exercise. After sharing a hilarious black-and-white picture on social media of her looking miserable while in the middle of a weight-machine session, she has been blasé about her disdain for physical exercise.
She says she has hit the gym only to shape up for her 105-date world tour, and to be healthy for Angelo, her three-year-old son with charity boss Simon Konecki.
The superstar revealed: "I was trying to get some stamina for my tour so I lost a bit of weight.
"Now I can fit into normal, off-the-shelf clothes, which is really a big problem for me. It's to get in shape for myself, not to be like a size zero or anything like that.
"I mainly moan. I'm not skipping to the f***ing gym. I don't enjoy it. I do like doing weights, I don't like looking in the mirror. Blood vessels burst on my face really easily so I'm so conscious when I'm lifting weights not to let that happen. And if I don't tour, you'll catch me back down at the Chinese.
"I absolutely loved [smoking] but it's not that f***ing cool when I'm dying from a smoking-related illness and my kid is, like, devastated."
Adele is so close to Geracimo he joined her in New York during a press trip in November.
He posted a picture of a ticket to see Adele's Radio City Music Hall gig, writing: "Hello. Cannot wait to hear my girl sing!!"
When she burst back on to the scene with No. 1 single Hello in October last year he also posted a jokey Instagram message pretending he had 1000 missed calls from his eager-to-train client.
He captioned the photoshopped screengrab, showing she had tried to be in contact: "Had my phone on silent!!! Oops!!"
The pair previously trained together before Angelo was born in 2012.
While Adele was pregnant, he tweeted her: "We miss you at KX!"
On his Instagram recently the super-fit gym nut moaned about "obese" people, writing: "I think I just found one of the main reasons Californians are obese. Walked past this restaurant and it was like watching pigs at the trough!!! #sicktomystomach".
Adele has also started eating and drinking much more healthily.
She admitted she has "practically" given up booze and stopped having cups of tea overloaded with sugar.
In a recent interview she said: "I used to drink ten cups a day with two sugars in each so was on 20 sugars a day. Now I don't drink it and have more energy than ever."
She also has Pure Package deliver her nutritious, low-calorie meals on occasion, with the business revealing: "We don't use additives or sugars so she has been eating a really clean diet, with tonnes of fruit and vegetables, lean protein and complex carbs.
"Losing weight is actually relatively easy, you just control the calories. But glowing and being a happier person, that's all about eating a balanced diet, eating regularly and maximising the nutrition you are receiving."
Adele revealed this week: "Actually, I like myself more than ever. I feel so comfortable in my own skin. I really like how I look, I like who I am, I like everyone that I surround myself with."
But with her trademark charm, Adele added that she will never stop wearing her beloved Spanx underwear, joking: "It's like pumping a sausage skin full of meat."
PETE GERACIMO'S TOUGH REGIME
Pete Geracimo's clients are put through a demanding circuit of exercises five time, plus tough Tabata interval training, painful "lactic-burning" workouts, leg-strengthening hill sprints and super-toning, fat-burning water-running. Exercises include:
• Push a weighted sled for 40 metres (five times).
• Eight log presses (five times).
• Ten double rope swings (five times).
• As many burpees as possible in 30-second blocks of explosive movement then ten seconds to relax.
• As many push-ups as possible in 30 seconds then ten seconds' rest.
• As many lunges as possible in 30 seconds then ten seconds to rest.
• As many kettlebell swings as possible in 30 seconds then ten seconds' rest.
• As many dumbbell squats as possible in 30 seconds then ten seconds to rest.
• Hill sprints. Sprint up a steep hill or stairs as fast as possible for ten to 15 seconds, then slowly jog or walk down. Repeat for between ten and 15 minutes.
• Water-running. Intersperse a length of "sprinting" with a slower recovery pace.
- news.com.au
