{"presentation":{"slides":[{"slideBackgroundSelector":{},"elements":[{"x":20.697167755991288,"y":2.150537634408602,"width":56.209150326797385,"height":45.16129032258064,"action":{"library":"H5P.Image 1.1","params":{"decorative":false,"contentName":"Image","expandImage":"Expand Image","minimizeImage":"Minimize Image","file":{"path":"images\/file-672b3a4e7d146.png","mime":"image\/png","copyright":{"license":"U"},"width":850,"height":346}},"subContentId":"3de92036-690f-402b-b3dd-1b2a9fcd4dfa","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""},{"x":21.78202614379085,"y":49.43053763440861,"width":57.734204793028326,"height":50.537634408602145,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"

When bones are put under stress, they suffer microdamage.This triggers the bone modelling response to reinforce bone against future stress. In adolescents, when bones are exposed to repetitive stress, such as during high-impact sports or intense physical activity, microdamage can accumulate faster than the bone can repair itself. If this happens repeatedly, the bone's natural remodeling process is overwhelmed, leading to the development of a stress fracture. <\/p>\n\n

This image comes from a study by Lambers et al (2013) and shows the increased bone microdamage caused by fatigue inducing exercise stress. <\/p>\n"},"subContentId":"0207e99e-8dfb-40eb-93d0-26220935f040","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}]},{"elements":[{"x":40.29912854030501,"y":0.4564817204301076,"width":18.51851851851852,"height":50.107526881720425,"action":{"library":"H5P.Image 1.1","params":{"decorative":false,"contentName":"Image","expandImage":"Expand Image","minimizeImage":"Minimize Image","file":{"path":"images\/file-672b3a7b24f18.jpg","mime":"image\/jpeg","copyright":{"license":"U"},"width":765,"height":1043}},"subContentId":"5ee5ed89-26ba-4c3e-b7b9-3f05cc1e8483","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""},{"x":28.320697167755988,"y":51.12602150537634,"width":50.98039215686275,"height":45.59139784946236,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"\n\n\t\n\t\t\n\t\t\t\n\t\t\t

Adolescents are still growing, and their bones are not fully ossified (hardened). Growth plates (epiphyseal plates), which are areas of cartilage that eventually ossify into bone, are more susceptible to injury. The bones of adolescents are more flexible than those of adults but can still develop stress fractures under repetitive strain, particularly in areas where ossification is incomplete.<\/span><\/span><\/span>
\n\t\t\tThe image shows a bone scan showing multiple stress fractures of the tibia in this adolescent athlete.<\/span><\/span><\/span>
\n\t\t\t <\/p>\n\t\t\t\n\t\t\n\t\n\n\n"},"subContentId":"be29ea2a-1baf-4488-9bd7-8deed6e10a1c","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":27.233115468409586,"y":49.46236559139785,"width":43.29004329004329,"height":48.433048433048434,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"

Adolescents, especially athletes, often engage in high levels of physical activity, which increases the risk of overloading the bones. Running, jumping, and other repetitive, high-impact activities put significant pressure on the bones, particularly in the lower extremities (e.g., the tibia, metatarsals, and femur). As athletes reach high school, there is often a significant training load increase. This may also contribute to an overload of bone stress.<\/span><\/span><\/span><\/p>\n"},"subContentId":"d3b18bc9-f50c-49a5-a4fd-e39487bd2b28","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""},{"x":31.59041394335512,"y":2.150537634408602,"width":34.31372549019608,"height":45.16129032258064,"action":{"library":"H5P.Image 1.1","params":{"decorative":false,"contentName":"Image","expandImage":"Expand Image","minimizeImage":"Minimize Image","file":{"path":"images\/file-672d4d5717314.png","mime":"image\/png","copyright":{"license":"U"},"width":640,"height":426}},"subContentId":"798bbd74-d433-4250-959b-645d7dd368e5","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":30.262770562770562,"y":51.20142450142451,"width":43.29004329004329,"height":48.71794871794872,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"

Hormonal imbalances, particularly in female adolescents (e.g., delayed periods or irregular menstrual cycles), can affect bone health. Additionally, inadequate nutrition, particularly insufficient calcium and vitamin D, can weaken bones, making them more vulnerable to stress fractures. The combination of high physical demands and suboptimal nutrition can create a higher risk for bone injury.<\/span><\/span><\/span><\/p>\n"},"subContentId":"276200ee-b7e5-4e95-808d-b24d3964fc25","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""},{"x":30.501089324618736,"y":4.301075268817204,"width":35.83877995642702,"height":44.3010752688172,"action":{"library":"H5P.Image 1.1","params":{"decorative":false,"contentName":"Image","expandImage":"Expand Image","minimizeImage":"Minimize Image","file":{"path":"images\/file-672d4d770bf67.png","mime":"image\/png","copyright":{"license":"U"},"width":640,"height":400}},"subContentId":"c7b91d8a-a5da-41bc-963a-551f434a94ac","metadata":{"contentType":"Image","license":"U","title":"Untitled Image"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}}],"keywordListEnabled":true,"globalBackgroundSelector":{},"keywordListAlwaysShow":false,"keywordListAutoHide":false,"keywordListOpacity":90},"override":{"activeSurface":false,"hideSummarySlide":false,"summarySlideSolutionButton":true,"summarySlideRetryButton":true,"enablePrintButton":false,"social":{"showFacebookShare":false,"facebookShare":{"url":"@currentpageurl","quote":"I scored @score out of @maxScore on a task at @currentpageurl."},"showTwitterShare":false,"twitterShare":{"statement":"I scored @score out of @maxScore on a task at @currentpageurl.","url":"@currentpageurl","hashtags":"h5p, course"},"showGoogleShare":false,"googleShareUrl":"@currentpageurl"}},"l10n":{"slide":"Slide","score":"Score","yourScore":"Your Score","maxScore":"Max Score","total":"Total","totalScore":"Total Score","showSolutions":"Show solutions","retry":"Retry","exportAnswers":"Export text","hideKeywords":"Hide sidebar navigation menu","showKeywords":"Show sidebar navigation menu","fullscreen":"Fullscreen","exitFullscreen":"Exit fullscreen","prevSlide":"Previous slide","nextSlide":"Next slide","currentSlide":"Current slide","lastSlide":"Last slide","solutionModeTitle":"Exit solution mode","solutionModeText":"Solution Mode","summaryMultipleTaskText":"Multiple tasks","scoreMessage":"You achieved:","shareFacebook":"Share on Facebook","shareTwitter":"Share on Twitter","shareGoogle":"Share on Google+","summary":"Summary","solutionsButtonTitle":"Show comments","printTitle":"Print","printIngress":"How would you like to print this presentation?","printAllSlides":"Print all slides","printCurrentSlide":"Print current slide","noTitle":"No title","accessibilitySlideNavigationExplanation":"Use left and right arrow to change slide in that direction whenever canvas is selected.","accessibilityCanvasLabel":"Presentation canvas. Use left and right arrow to move between slides.","accessibilityProgressBarLabel":"Choose slide to display","containsNotCompleted":"@slideName contains not completed interaction","containsCompleted":"@slideName contains completed interaction","slideCount":"Slide @index of @total","containsOnlyCorrect":"@slideName only has correct answers","containsIncorrectAnswers":"@slideName has incorrect answers","shareResult":"Share Result","accessibilityTotalScore":"You got @score of @maxScore points in total","accessibilityEnteredFullscreen":"Entered fullscreen","accessibilityExitedFullscreen":"Exited fullscreen","confirmDialogHeader":"Submit your answers","confirmDialogText":"This will submit your results, do you want to continue?","confirmDialogConfirmText":"Submit and see results","slideshowNavigationLabel":"Slideshow navigation"}}

Node-14750__Activity13-Adolescents