Supermodel Miranda Kerr has revealed the secret behind her slim and toned body. The 31-year-old mother-of-one shared her favourite fitness regime on her blog for Kora Organics - and it only takes 15 minutes. Despite the short exercise time, Miranda says it's an 'intense' all body work out. Explaining why she finds the short fitness training beneficial, she writes: 'Like most busy working women and mothers, I can find it difficult to fit everything into the day, and more often than not exercise can get relegated to the bottom of the list.' Scroll down for video . Loves to exercise: Miranda Kerr said a work out increases her energy levels and concentration . She adds: 'When I’m short on time, working long hours or travelling, I've developed a 15-minute workout routine that targets all areas, needs no equipment and can be easily done at home or in a hotel room. Not only does it give you a great workout, but it also increases your energy levels and improves concentration!' The model, who has a three-year-old son with actor Orlando Bloom, said exercise is an important part of her lifestyle and she doesn't feel her best unless she's done something to raise her heart rate. As well as regularly doing her 15 minute work out, she said she also loves doing resistance training, yoga classes, hiking or going on a bike ride with her son, Flynn. The model recommends people stretch before and after doing her routine and warns them to consult a healthcare professional before trying it if they are new to exercising. Each of the exercises must be performed consecutively with just 30 seconds recovery in between each move. So what does a fitness expert make of Miranda's routine? Secret to her flat stomach: Miranda does core stability moves like the plank . Personal trainer and author of the Fat Burn Revolution Julia Buckley told MailOnline that it's 'a good solid session on the whole.' She said: 'Miranda has chosen some nice, effective moves for the legs like squats and lunges and great core exercises like plank and leg raises. Mountain climbers are a brilliant cardio move, those are great for torching fat. 'To make it more of a full body routine, I’d have liked to see a bit more balance and a couple more exercises for the arms, back and shoulders as it’s very core and lower body focused. But it’s not a bad workout at all.' Even though it's only 15 minutes long, Julia said Miranda's moves can give the body a decent work out but she recommends people try to exercise for longer more regularly and then do the shorter routine when they are pushed for time. She said: 'I'm all for short, sharp sessions, but there's a limit to how fit you can get on just 15 minutes training per day, so I'd recommend longer sessions for most people, most of the time. 'However, something like this could slip nicely into a schedule for days when time is time and you want a kit-free workout.' 1 minute of push ups . 1 minute plank (or 2 x 30 second holds for beginners) 1 minute of squats . 1 minute of jumping jacks . 1 minute of left leg raises . 1 minute of bicycle crunches . 1 minute of right leg raises . 1 minute bridge (hold 30 seconds, pulse 30 seconds) 1 minute of jumping jacks . 1 minute of alternating lunges . 1 minute wall sit . 1 minute of mountain climbers . 1 minute of jumping jacks . Take 30 seconds recovery between each move . MIRANDA'S MOVES EXPLAINED... PUSH UPS: Aka press ups this is a move that has never gone out of fashion. Julia explains why: 'Press ups are an awesome all-body move, again you're bracing the core and engaging the abdominal muscles to maintain a straight position, which is great for shredding the belly and at the same time you're sculpting the chest and arms.' To do it, start lying flat face down, position your palms face down under your shoulders and then push up so your body is balanced on your hands and toes and your back is straight. Slowly lower and repeat. Julia said: 'A minute of push ups would be pretty challenging for most beginners, but you could do them with your knees on the floor instead of your feet if full push ups are too much.' THE PLANK: This move engages your core muscles leading to a tighter, flatter stomach. Julia explains: 'The plank is one of the best exercises for tightening the tummy because it works the whole midsection of your body, including the deep abdominal muscles. It is also great for improving posture and balance and will build core strength to help you perform better many other exercises.' Begin by lying flat face down. Position your arms under your shoulders and then rise up onto your forearms so your body is balanced on your forearms and toes and your back is straight. Hold this position for a minute - be warned it isn't easy and you may start to wobble! Hold for 30 seconds to begin with if you are finding it too difficult. SQUATS: Julia said: 'Squats are among the best exercises you can do to firm up and sculpt the legs and bum and they also work the core and back muscles.' Begin from a standing position and then lower your body, bending your knees as if going to sit down in a chair, when your legs reach a right angle to the floor, push back up to standing and repeat. JUMPING JACKS: From standing, do a star jump splitting your legs apart and then jumping back to bring them together. At the same time, raise your arms up and apart. Lunges, left, tone the legs and bottom while press ups, right, are an effective all body exercise . LEG RAISES: Made famous by Jane Fonda, these are great for toning the thighs. Start lying on your side and raise one leg up and back down again. BICYCLE CRUNCHES: These are a different version of sit ups designed to strengthen the stomach muscles. Lie flat on your back and raise your legs off the floor with your knees bent. Position your arms so your palms are resting behind your ears. Then bring each leg in towards your stomach in turn and at the same time, raise your upper body, engaging your stomach muscles to pull you up. As you raise, slightly twist to one side so one elbow meets the opposite knee being pulled towards the body. BRIDGE: This is another move which will give you a flat stomach and a firm bottom. Lie flat on your back, bend your knees keeping your feet flat on the floor. Then raise your body so your weight is on your feet and upper body and your bottom and lower back is off the floor. Keep your body straight and hold this position. When Miranda says to 'pulse' for 30 seconds, this means holding the position but squeezing your bottom cheeks and thrusting your hips up and down in small movements. LUNGES: From standing, take a step forward and lower your body down till the front leg is at a 90 degree angle to the floor, then push back up to standing. For 'alternative' lunges as Miranda recommends, take it in turn to step forward with each leg. WALL SIT: This is similar to a squat (see above) but done with your back flat against a wall. Once in the squat position, hold it for a minute rather than continually squatting up and down. Burn fat: Mountain climbers raise your heart rate and tone the stomach . MOUNTAIN CLIMBERS: Bend down on the floor with your hands palm down and arms straight and then move your legs in a running motion bringing alternative knees up to the chest and straightening the leg again. Julia said this is another great move for toning and conditioning. She said: 'Mountain climbers are fantastic exercise, offering a total body workout in single “do anywhere” move. The core is activated to keep the body in position while you power the legs out behind you. They are hardcore, but if you want to burn body fat these will definitely get you ignited!'
Model, 31, has revealed the secret behind her slim and toned body .
Shared her favourite fitness regime on her blog for Kora Organics .
Workout only takes 15 minutes and no equipment is needed .
She said it's a great way to keep fit when short on time .
As a working mother-of-one she said it isn't easy to fit in exercise .
But she always feels better for having done it .
Supermodel Miranda Kerr has revealed the secret behind her slim and toned body. The 31-year-old mother-of-one shared her favourite fitness regime on her blog for Kora Organics - and it only takes 15 minutes. Despite the short exercise time, Miranda says it's an 'intense' all body work out. Explaining why she finds the short fitness training beneficial, she writes: 'Like most busy working women and mothers, I can find it difficult to fit everything into the day, and more often than not exercise can get relegated to the bottom of the list.' Scroll down for video . Loves to exercise: Miranda Kerr said a work out increases her energy levels and concentration . She adds: 'When I’m short on time, working long hours or travelling, I've developed a 15-minute workout routine that targets all areas, needs no equipment and can be easily done at home or in a hotel room. Not only does it give you a great workout, but it also increases your energy levels and improves concentration!' The model, who has a three-year-old son with actor Orlando Bloom, said exercise is an important part of her lifestyle and she doesn't feel her best unless she's done something to raise her heart rate. As well as regularly doing her 15 minute work out, she said she also loves doing resistance training, yoga classes, hiking or going on a bike ride with her son, Flynn. The model recommends people stretch before and after doing her routine and warns them to consult a healthcare professional before trying it if they are new to exercising. Each of the exercises must be performed consecutively with just 30 seconds recovery in between each move. So what does a fitness expert make of Miranda's routine? Secret to her flat stomach: Miranda does core stability moves like the plank . Personal trainer and author of the Fat Burn Revolution Julia Buckley told MailOnline that it's 'a good solid session on the whole.' She said: 'Miranda has chosen some nice, effective moves for the legs like squats and lunges and great core exercises like plank and leg raises. Mountain climbers are a brilliant cardio move, those are great for torching fat. 'To make it more of a full body routine, I’d have liked to see a bit more balance and a couple more exercises for the arms, back and shoulders as it’s very core and lower body focused. But it’s not a bad workout at all.' Even though it's only 15 minutes long, Julia said Miranda's moves can give the body a decent work out but she recommends people try to exercise for longer more regularly and then do the shorter routine when they are pushed for time. She said: 'I'm all for short, sharp sessions, but there's a limit to how fit you can get on just 15 minutes training per day, so I'd recommend longer sessions for most people, most of the time. 'However, something like this could slip nicely into a schedule for days when time is time and you want a kit-free workout.' 1 minute of push ups . 1 minute plank (or 2 x 30 second holds for beginners) 1 minute of squats . 1 minute of jumping jacks . 1 minute of left leg raises . 1 minute of bicycle crunches . 1 minute of right leg raises . 1 minute bridge (hold 30 seconds, pulse 30 seconds) 1 minute of jumping jacks . 1 minute of alternating lunges . 1 minute wall sit . 1 minute of mountain climbers . 1 minute of jumping jacks . Take 30 seconds recovery between each move . MIRANDA'S MOVES EXPLAINED... PUSH UPS: Aka press ups this is a move that has never gone out of fashion. Julia explains why: 'Press ups are an awesome all-body move, again you're bracing the core and engaging the abdominal muscles to maintain a straight position, which is great for shredding the belly and at the same time you're sculpting the chest and arms.' To do it, start lying flat face down, position your palms face down under your shoulders and then push up so your body is balanced on your hands and toes and your back is straight. Slowly lower and repeat. Julia said: 'A minute of push ups would be pretty challenging for most beginners, but you could do them with your knees on the floor instead of your feet if full push ups are too much.' THE PLANK: This move engages your core muscles leading to a tighter, flatter stomach. Julia explains: 'The plank is one of the best exercises for tightening the tummy because it works the whole midsection of your body, including the deep abdominal muscles. It is also great for improving posture and balance and will build core strength to help you perform better many other exercises.' Begin by lying flat face down. Position your arms under your shoulders and then rise up onto your forearms so your body is balanced on your forearms and toes and your back is straight. Hold this position for a minute - be warned it isn't easy and you may start to wobble! Hold for 30 seconds to begin with if you are finding it too difficult. SQUATS: Julia said: 'Squats are among the best exercises you can do to firm up and sculpt the legs and bum and they also work the core and back muscles.' Begin from a standing position and then lower your body, bending your knees as if going to sit down in a chair, when your legs reach a right angle to the floor, push back up to standing and repeat. JUMPING JACKS: From standing, do a star jump splitting your legs apart and then jumping back to bring them together. At the same time, raise your arms up and apart. Lunges, left, tone the legs and bottom while press ups, right, are an effective all body exercise . LEG RAISES: Made famous by Jane Fonda, these are great for toning the thighs. Start lying on your side and raise one leg up and back down again. BICYCLE CRUNCHES: These are a different version of sit ups designed to strengthen the stomach muscles. Lie flat on your back and raise your legs off the floor with your knees bent. Position your arms so your palms are resting behind your ears. Then bring each leg in towards your stomach in turn and at the same time, raise your upper body, engaging your stomach muscles to pull you up. As you raise, slightly twist to one side so one elbow meets the opposite knee being pulled towards the body. BRIDGE: This is another move which will give you a flat stomach and a firm bottom. Lie flat on your back, bend your knees keeping your feet flat on the floor. Then raise your body so your weight is on your feet and upper body and your bottom and lower back is off the floor. Keep your body straight and hold this position. When Miranda says to 'pulse' for 30 seconds, this means holding the position but squeezing your bottom cheeks and thrusting your hips up and down in small movements. LUNGES: From standing, take a step forward and lower your body down till the front leg is at a 90 degree angle to the floor, then push back up to standing. For 'alternative' lunges as Miranda recommends, take it in turn to step forward with each leg. WALL SIT: This is similar to a squat (see above) but done with your back flat against a wall. Once in the squat position, hold it for a minute rather than continually squatting up and down. Burn fat: Mountain climbers raise your heart rate and tone the stomach . MOUNTAIN CLIMBERS: Bend down on the floor with your hands palm down and arms straight and then move your legs in a running motion bringing alternative knees up to the chest and straightening the leg again. Julia said this is another great move for toning and conditioning. She said: 'Mountain climbers are fantastic exercise, offering a total body workout in single “do anywhere” move. The core is activated to keep the body in position while you power the legs out behind you. They are hardcore, but if you want to burn body fat these will definitely get you ignited!'
Supermodel Miranda Kerr has revealed the secret behind her slim and toned body. The 31-year-old mother-of-one shared her favourite fitness regime on her blog for Kora Organics - and it only takes 15 minutes. Despite the short exercise time, She adds: 'When I’m short on time, working long “do anywhere” move. The core is activated to keep