Back

Simple extensions can strengthen your back, so you can bare it in sexy, backless dresses.
The workout: Lie on your stomach, legs straight out behind you, with your forehead touching the ground and hands by your sides, instructs Rachel Crompton, of Elixr Health Clubs. Lift your upper body off the ground, "crunching" towards the hips. Hold for a few seconds, relax, then repeat.

Power move: Place your hands behind your neck, keeping arms bent, while doing the exercise.

Arms

Get sculpted arms – perfect for showing off in singlets – with tricep dips.
The workout: With your back to a bench, place your hands flat upon it and move your feet out in front of you. Lower your upper body towards the floor, keeping elbows tucked into your sides, until your thighs are at a 90-degree angle to your body. Exhale and slowly bring your body back up. Repeat.

Power move: Combine tricep dips with bicep curls, which involve standing, feet hip-width apart, with 3kg weights in your palms, facing you. Curl each arm towards you, then lower, in a controlled motion.

Thighs

Tone your thighs for summer's mini-dresses.
For toned thighs that carry off the shortest of dresses, do a combination of lunges and squats, suggests Graeme Salt, of Step into Life training. Try lunges both walking forward and stepping back, and remember to squeeze your glutes while squatting.

Power move: Hold weights in each hand, but keep the front knee behind your toes and be sure to lower straight down rather than forward.

Tummy

For a taut tummy to squeeze into the slinkiest of summer dresses, the plank is the ultimate ab exercise, according to personal trainer David Darvill, of Active Edge.
The workout: Lie facedown on the floor and lift your body into a "plank" position, supporting yourself by keeping your forearms and toes on the floor. Keep your back straight, and hold for 20–60 seconds, lower, then repeat.

Power move: Extend an arm outwards or lift one leg two or three centimetres, while maintaining a straight back.

Bottom

For a bikini-ready bottom, opt for "clams", advises Crompton.
The workout: Lie on your side, legs bent and, as you exhale, "contract your top gluteal muscles and lift your knees up," she says.

Power move: Try looping a band around your knees for more resistance, or pulse (small bouncing or rocking movements) while in position.

Photos: Getty Images