Deemed TopFit’s “toughest and most intense program yet”, this class is capped at six participants per session to produce maximum results. With a focus on improving both physical and mental strength, this program combines intense cardio exercises, dynamic movement, and bodyweight training to test your endurance and shred major calories.

TopFit, 3/F The Wellington,198 Wellington St, Central, top-fit.com, $400 per class

See also: Ask A Trainer: What's Better For Me, HIIT vs. LISS?

Unlike other indoor cycling studios, TORQ places a special emphasis on working out off the bike through HIIT and trigger point release. TORQ’s SWITCH class uses TRX, kettlebells, free weights, sandbags, and ViPR exercises done in strategic intervals to whip your muscles into shape. You'll feel stronger and look visibly leaner.

TORQ, 3/F Abdoolally House, 20 Stanley St, Central, torqcycle.com, HK$280 per class

HIT45’s intense bootcamp-style Full Body class incorporates several regimens that will leave you sweating. After some preliminary stretching, hop on their futuristic treadmills to get your heart rate going. Then it’s onto to strength training, working with medicine balls, dumbbells, kettlebells and bodyweight to increase physical performance. 

HIT45, 1/F, Abdoolally House, 20 Stanley St, Central, hit45hk.com, HK$270 per class

See also: 10 Wellness Trends To Watch In 2018

Training at this enormous facility is a treat in itself, and Trybe’s range of classes will accelerate any of your calorie-cutting efforts. The Body Burn 45 class strikes a balance between strength and cardio to challenge your body into working faster and with greater stability using free weights, battle ropes, bodyweight, and the squat rack. 

TrybeHK, Unit 209-210, 2/F, One Island South, 2 Heung Yip Rd, Wong Chuk Hang, trybehk.com, HK$250 per class

Ursus Fitness’ HIIT training has a highly intentional and regimented approach. The gym’s philosophy stresses the importance of properly implemented circuit training exercises such as deadlifts, box jumps, ring rows and hammer swings, interspersed with varying ratios of rest time to keep your body in a slight state of shock and boost your metabolism big time.

Ursus Fitness, Unit 2-4, 64-68 Pok Fu Lam Rd, Sai Ying Pun, Hong Kong, ursusfitness.com, HK$250 per class

F45 has goal-specific workouts for everyone but if you’re looking to light some calories on fire, the Flamingo Athletica course is for you. This team-based, cardio-intensive program sends you flying through 9 stations in just 45 minutes and is also said to burn at least 820 calories per class.

F45, multiple locations, f45training.com, free one-week trial

For a well-rounded, total body workout, don’t miss Flex Studio’s Flex Sweat class. Fitness goers of all levels will love how this course gets all major muscle groups working by including a lower intensity strength training circuit and an ab training circuit. You’ll work with hand weights, jump ropes, ViPRs, kettlebells and calorie-blasting bodyweight exercises.

Flux Studio, shops 308-310, One Island South 2 Heung Yip Road, Wong Chuk Hang; 3/F Man Cheung Building, 15-17 Wyndham St, Central, flexhk.com, HK$300 per class