PURPOSE:: To assess maximum voluntary forefoot ground reaction force (Fm1LH) during multiple one-legged hopping (m1LH, a new jumping maneuver) and to determine the correlation between tibial volumetric bone mineral content (vBMC, a valid surrogate of bone strength) and Fm1LH. METHODS:: One hundred and eighty-five females (8-82 years old) and 138 males (8-71 years old) performed m1LH to measure Fm1LH acting on the forefoot during landing. Peripheral quantitative computed tomography (pQCT) scans were obtained to assess vBMC at 4, 14, 38 and 66% tibia length and calf muscle cross-sectional area (Ar.muscle) at the 66%-site. RESULTS:: In all 323 participants, Fm1LH corresponded to 3-3.5 times body weight, and Fm1LH predicted vBMC14% by 84.0% (P < 0.001). vBMC14% was better correlated with Fm1LH than with Ar.muscle in both males (R = 0.841 vs. R = 0.724) and females (R = 0.765 vs. R = 0.597). Fm1LH and vBMC14% both increased during growth and afterwards remained constant or decreased with age, but never increased above the values reached at the end of puberty. Fm1LH decreased by 23.6% between 21-30 and 61-82 years in females and by 14.0% between 31-40 and 51-71 years in males. vBMC14% decreased by 13.7% in females between 21-30 and 61-82 years but remained unchanged in adult males. CONCLUSIONS:: m1LH yields the highest (i.e. maximum) ground reaction force relative to other jumping maneuvers. Since bone strength is strongly governed by maximum muscle force, the concurrent assessment of pQCT-derived bone strength and Fm1LH might represent a new approach for the operational evaluation of musculoskeletal health.<\/p>\n","protected":false},"excerpt":{"rendered":"
PURPOSE:: To assess maximum voluntary forefoot ground reaction force (Fm1LH) during multiple one-legged hopping (m1LH, a new jumping maneuver) and<\/p>\n","protected":false},"author":1,"parent":0,"menu_order":0,"template":"","format":"standard","meta":{"_acf_changed":false},"tags":[],"thema":[5870,5922,5924,5866,5876,5888,5928,5878,5930,5884,5894,5868,5890,5886,5880,5856,5872],"produktgruppe":[5827,5825],"literatur_kategorie":[7221],"class_list":["post-164736","literatur","type-literatur","status-publish","format-standard","hentry","thema-basics","thema-clinical-application","thema-clinical-studies","thema-diagnostics-using-leonardo-pqct","thema-diseases","thema-geriatrics","thema-mechanostat-en","thema-medical-applications","thema-msucle-bone-interaction","thema-orthopedic-diseases","thema-osteoporosis","thema-over-all-concept","thema-paediatrics","thema-prevention","thema-pyhsitherapy-rehabilitation","thema-therapy-prevention-using-galileo","thema-training-education","produktgruppe-leonardo-en","produktgruppe-pqct-en","literatur_kategorie-clinical-studies"],"acf":[],"_links":{"self":[{"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/literatur\/164736","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/literatur"}],"about":[{"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/types\/literatur"}],"author":[{"embeddable":true,"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":0,"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/literatur\/164736\/revisions"}],"wp:attachment":[{"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/media?parent=164736"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/tags?post=164736"},{"taxonomy":"thema","embeddable":true,"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/thema?post=164736"},{"taxonomy":"produktgruppe","embeddable":true,"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/produktgruppe?post=164736"},{"taxonomy":"literatur_kategorie","embeddable":true,"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/literatur_kategorie?post=164736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}