now on bbc news, it's click. this week, we explore the attack tech behind the olympic games. �* . , . attack tech behind the olympic games. �* ., ., ., games. alastair looks at an elite swimming _ games. alastair looks at an elite swimming suit. - games. alastair looks at an elite swimming suit. we . games. alastair looks at an l elite swimming suit. we talk with an elite _ elite swimming suit. we talk with an elite mountain - elite swimming suit. we talk. with an elite mountain biker... it is better than just by it is better thanjust by itself _ it is better than 'ust by itself. �* , ., ., ., itself. and then it is lara who is doinu itself. and then it is lara who is doing - _ itself. and then it is lara who is doing - i — itself. and then it is lara who is doing - i don't _ itself. and then it is lara who is doing - i don't know- itself. and then it is lara who is doing - i don't know what. | itself. and then it is lara who | is doing - i don't know what. i is doing — i don't know what. i meet the athlete doing real and virtual gymnastics. i meet the athlete doing real and virtual gymnastics.— virtual gymnastics. i am going to do a somersault _ virtual gymnastics. i am going to do a somersault in - virtual gymnastics. i am going to do a somersault in this - virtual gymnastics. i am goingj to do a somersault in this new technology. to do a somersault in this new technology-— to do a somersault in this new technology. paris - art, music, fashion. _ technology. paris - art, music, fashion, sports. _ technology. paris - art, music, fashion, sports. the _ technology. paris - art, music, fashion, sports. the olympic. fashion, sports. the olympic and paralympic games are returning to this beautiful city for a third time. 1900, i924 city for a third time. 1900, 192k and now 202a. a century 192a and now 202a. a century on, things are certainly changed, and we are notjust talking about the outfits. every time there is an olympic games, it is a chance for not just sport, but sport tech to take to the world stage and we are always learning about new ways to monitor how exercise and sport affects the human body, and what is trialed here at elite level would almost certainly trickle down to the rest of us ordinaries at some point. first, let's hit the pool where alastair is checking out something very snug indeed. i knew it for a very young age — that is where i want to be. the olympics is amazing to go to as a whole, but it has taken me about four years to do so so i am so happy to have finally made that progression. getting to this point — made that progression. getting to this point takes _ to this point takes determination, lots of training and the best technology. there is a feast of equipments that all swimmers have that is tightly regulated and designers are constantly trying to improve their swimsuits. on the face of it, some costumes have not really changed much over the years but at the elite level, these are highly engineered piece of tech, costing hundreds of pounds. typically, olympic cycles is how we work and we will have a revolution of suit technology at the olympic games, something which is hopefully groundbreaking and moves the goalpost a little bit higher. but how far designers can push innovation is dictated by the sports governing body could limit what material can be used or how and where seams might be placed. but that does not stop companies pushing the boundaries and there are a handful competing to produce the best suits for this elite level. ., , ., the best suits for this elite level. . , ., , , the best suits for this elite level. ., , , level. can you step up? athletes _ level. can you step up? athletes will _ level. can you step up? athletes will try - level. can you step up? athletes will try out - level. can you step up? - athletes will try out several different ones to decide what they want to race in and today hani is trying the latest suit from arena which includes a new innovation in a material to give the swimmer compression to help them be more streamlined in the water and the flexibility to make it easier to put on. flexibility to make it easier to put om— to put on. there are two different _ to put on. there are two different textures - to put on. there are two different textures of - to put on. there are two i different textures of fabric. they both have the hyper force fabric in them but one is smooth and one has channels in it. from the research, we know where water needs to be channelled because vortexes are created because of the form of the body so we need to get the water away, as soon as we can, from those areas and that is why we have these channels in certain parts of the suit. hose certain parts of the suit. how does it feel? _ certain parts of the suit. how does it feel? with _ certain parts of the suit. how does it feel? with the - certain parts of the suit. how does it feel? with the suit, l does it feel? with the suit, arena suits _ does it feel? with the suit, arena suits that _ does it feel? with the suit, arena suits that i _ does it feel? with the suit, arena suits that i have - does it feel? with the suit, | arena suits that i have tried on before, they take longer. i would — on before, they take longer. i would say— on before, they take longer. i would say it takes about ten minutes _ would say it takes about ten minutes but this one took two minutes— minutes but this one took two minutes to get on.— minutes to get on. how important _ minutes to get on. how important is _ minutes to get on. how important is the - minutes to get on. how- important is the compression to you? important is the compression to ou? . , important is the compression to ou? ., you? really important. i find that the more _ you? really important. i find that the more compressive l you? really important. i findj that the more compressive it is, ifeel more buoyant in that the more compressive it is, i feel more buoyant in the water. , , ., ., ., water. the best way for hani to t out water. the best way for hani to try out the _ water. the best way for hani to try out the suitors _ water. the best way for hani to try out the suitors in _ water. the best way for hani to try out the suitors in the - try out the suitors in the water and we can use cameras to see how it is performing. hani is wearing the costume for the first time, swimming up and down. what can you see by using this analysis about the costume?— this analysis about the costume? a , ., ., costume? as you can see around the there is — costume? as you can see around the there is minimal _ costume? as you can see around the there is minimal bubbles - costume? as you can see around the there is minimal bubbles ori the there is minimal bubbles or air pockets because the suit is compressing the body into a streamlined position and allowing the water to flow more easily across the surface of the body. easily across the surface of the body-— easily across the surface of the bod . , ., , ., ., the body. so, she was wearing a standard. _ the body. so, she was wearing a standard. off— the body. so, she was wearing a standard, off the _ the body. so, she was wearing a standard, off the shelf _ the body. so, she was wearing a standard, off the shelf suit, - standard, off the shelf suit, we would expect more bubbles? the fabric would absorb more water. it would not compress as much as the racing suits so you would end up with more bubbles around the body as she moved through the water. find around the body as she moved through the water.— through the water. and if the fabric was — through the water. and if the fabric was absorbing - through the water. and if the fabric was absorbing too - through the water. and if the l fabric was absorbing too much water? it fabric was absorbing too much water? ., , ., water? it would pull her down and she would _ water? it would pull her down and she would start _ water? it would pull her down and she would start to - water? it would pull her down and she would start to go - and she would start to go lower. as you are in a race you get fatigued more and that makes it more difficult to maintain speed and you can move faster, especially the 200 metres backstroke that she swims as the main event. but there is only _ swims as the main event. but there is only so _ swims as the main event. but there is only so much a coach's i can see. the decider is how it feels in the water. how does it feels in the water. how does it feel? ., , ., ., ~ it feel? really good. like i was saying _ it feel? really good. like i was saying before, - it feel? really good. like i was saying before, i - it feel? really good. like i was saying before, i think| it feel? really good. like i | was saying before, i thinki was saying before, i think i got the suit on in about two minutes and usually it takes me ten minutes with a new suit, so i thought "how is it going to fill in the water?" but as soon as i got in, it all compressed and ifelt really as i got in, it all compressed and i felt really buoyant and thatis and i felt really buoyant and that is important to me. haifa that is important to me. how many tests — that is important to me. how many tests of _ that is important to me. how many tests of the _ that is important to me. how many tests of the suits - that is important to me. how many tests of the suits will i many tests of the suits will you do before you decide? i will probably want to do one or two runthrough is. so, i do something called stand—up swims. i will come in, something called stand—up swims. iwill come in, put something called stand—up swims. i will come in, put the suit on again and swim the race how i normally do, just in a training environment, and see how that feels.— how that feels. good luck in the olympics _ how that feels. good luck in the olympics and _ how that feels. good luck in the olympics and with - how that feels. good luck in the olympics and with your| the olympics and with your training. the olympics and with your trainina. ., ~ the olympics and with your trainina. ., ,, i. the olympics and with your trainina. . ~ i. the olympics and with your trainina. ., ~' . training. thank you so much. so, training. thank you so much. so. which — training. thank you so much. so, which suit _ training. thank you so much. so, which suit bushy - training. thank you so much. so, which suit bushy peak . training. thank you so much. so, which suit bushy peak in | so, which suit bushy peak in the end? we will to wait until race day in the end. did the end? we will to wait until race day in the end.— race day in the end. did not see alasdair's _ race day in the end. did not see alasdair's trunks. - race day in the end. did not see alasdair's trunks. the l see alasdair's trunks. the olympics _ see alasdair's trunks. the olympics is _ see alasdair's trunks. the olympics is not _ see alasdair's trunks. the olympics is not just - see alasdair's trunks. the olympics is notjust an . olympics is notjust an opportunity to revitalise a host nation's infrastructure but showcase its heritage too. this is widely regarded as the most ornate and extravagant bridge. most ornate and extravagant bride. ., , ., ., ., bridge. you will see a lot of this because _ bridge. you will see a lot of this because it _ bridge. you will see a lot of this because it is _ bridge. you will see a lot of this because it is involved l bridge. you will see a lot of| this because it is involved in several events. the marathon cycling will go under it and the road cycling will go over it. while the time trial event finishes at the bridge, spare a thought for the road races for whom this will be a distant memory. by the time they cycle through paris and all the way up through paris and all the way up to a final climb on the butte mont mart.- up to a final climb on the butte mont mart. �* butte mont mart. and then there is the mountain _ butte mont mart. and then there is the mountain biking _ butte mont mart. and then there is the mountain biking which - is the mountain biking which has been an olympic sport since 1996 and will take part at the highest point in the paris region but the sport is yet to appear at the paralympics but we have been to meet the bikers who want to change that. this is competitive _ who want to change that. this is competitive mountain bike racing — is competitive mountain bike racing a— is competitive mountain bike racing. a sport where riders help— racing. a sport where riders help themselves off massive jumps. — help themselves off massive jumps, through tree—lined trails _ jumps, through tree—lined trails and fly downhill at eye watering speeds. | trails and fly downhill at eye watering speeds.— watering speeds. i started competing _ watering speeds. i started competing when - watering speeds. i started competing when i - watering speeds. i started competing when i was - watering speeds. i started competing when i was 12, | watering speeds. i started. competing when i was 12, 11 years— competing when i was 12, 11 years old _ competing when i was 12, 11 years old i_ competing when i was 12, 11 years old. i used _ competing when i was 12, 11 years old. i used to- competing when i was 12, 11 years old. i used to ride - years old. i used to ride downhill _ years old. i used to ride downhill.— years old. i used to ride downhill. , , , ,, , ., downhill. this is gus step, a competitive _ downhill. this is gus step, a competitive mountain - downhill. this is gus step, a competitive mountain bike l downhill. this is gus step, a - competitive mountain bike rider and a national champion in chile. i and a national champion in chile. ., , and a national champion in chile. . , ., and a national champion in chile. . ~ chile. i was an american champion. _ chile. i was an american champion, national- chile. i was an american - champion, national champion multiple times and i finished 20th in a world cup and it was my best result.— 20th in a world cup and it was my best result. before training in 2017 he _ my best result. before training in 2017 he had _ my best result. before training in 2017 he had an _ my best result. before training in 2017 he had an accident. - my best result. before training in 2017 he had an accident. hil in 2017 he had an accident. fl crash in a wheelchair and i was paralysed from my waist down. did you think that you would be able to cycle again? it did you think that you would be able to cycle again?— able to cycle again? it never came to _ able to cycle again? it never came to my _ able to cycle again? it never came to my mind. _ able to cycle again? it never came to my mind. although| came to my mind. although mountain — came to my mind. although mountain biking _ came to my mind. although mountain biking will - came to my mind. although mountain biking will be - came to my mind. although mountain biking will be an l mountain biking will be an official— mountain biking will be an official sport at this year's olympic games, it has not been made _ olympic games, it has not been made a — olympic games, it has not been made a sport in the paralympic games— made a sport in the paralympic games and that is partially because the bikes needed to race — because the bikes needed to race do— because the bikes needed to race do not exist. many traditional hand cycles are to be written on the road and occasionally placement riders kneeling forward. this puts the centre — kneeling forward. this puts the centre of— kneeling forward. this puts the centre of gravity higher — something that would make sharp turns— something that would make sharp turns difficult on a loose dirt mountain— turns difficult on a loose dirt mountain bike trail but a canadian company think they have — canadian company think they have developed a solution. i have developed a solution. broke my have developed a solution. i broke my back in 1996 at snowboarding and prior to that i loved mountain biking. i love snowboarding and climbing. i was like a kid who loved the outdoors in canada, and very early on in my injury, i recognised that i was going to be 100% reliant on technology. a machinist by trade, christian began building experimental adaptive mountain bikes at home. the problem was always that i would tip _ home. the problem was always that i would tip over _ home. the problem was always that i would tip over or- home. the problem was always that i would tip over or i - that i would tip over or i would go fast down a hill and corner and tip to the outside of the corner. for corner and tip to the outside of the corner.— of the corner. for years and ears of the corner. for years and years he — of the corner. for years and years he tinkered _ of the corner. for years and years he tinkered with - years he tinkered with different designs but nothing worked, so he focused his energy on a custom cross—country ski chair that could shift and pivot on undulating snow. it was when skiing that a light bulb went off — if he flipped it over he would have a system that allowed the wheels to articulate and absorb shocks independently. the articulate and absorb shocks independently.— articulate and absorb shocks independently. the main thing is the articulation _ independently. the main thing is the articulation so _ independently. the main thing is the articulation so with - is the articulation so with that you can go through skin infections, you can go into rocks and then another one and it will move by itself. you rocks and then another one and it will move by itself.— it will move by itself. you can absorb big — it will move by itself. you can absorb big drops, _ it will move by itself. you can absorb big drops, allowing i absorb big drops, allowing writers to maintain speed through sections like they would on a mountain bike. aside from its articulating frame, these bikes have unique features that make them especially useful for mountain bikers. unlike most hand cycles, they operate with two bills at the front and one in the back. combined with an upright seating position closer to the ground, riders can shift and pitch their way to avoid tipping over on sharp turns. the motors are fully motorised models as well. currently, each bikers and ranges from 13,000 to $20,000. 0 ed says there bikes are in 20 countries and more bikes in more places could offer worldwide competition. even still, christian said the bikes are bringing a new found acceptance for adaptive mountain bike riders. irate acceptance for adaptive mountain bike riders. we are art of mountain bike riders. we are part of cycling _ mountain bike riders. we are part of cycling now, - mountain bike riders. we are part of cycling now, which . mountain bike riders. we are part of cycling now, which is | part of cycling now, which is huge for us internally but it is way biggerfor our huge for us internally but it is way bigger for our customer. our acceptance is their acceptance.— our acceptance is their acceptance. our acceptance is their acce tance. ~ ., , , acceptance. while it has helped with his racing, _ acceptance. while it has helped with his racing, gustavo - acceptance. while it has helped with his racing, gustavo says i with his racing, gustavo says the technology has helped him get back and ride his bike again. i get back and ride his bike aaain. ~ ., again. i feel like i am discovering _ again. i feel like i am discovering another. again. i feel like i am i discovering another kind of writing because i was so used to just racing writing because i was so used tojust racing — racing, racing, racing. iam preparing for racing and now i am enjoying the process of riding. i am going on long rides. while we are certain _ i am going on long rides. while we are certain these _ i am going on long rides. while we are certain these bikes i i am going on long rides. while we are c