We examined the relationship between football-specific training and changes in bone structural properties across a 12-week period in 15 male football players aged 16 years (Mean +\/- 1 SD = 16.6 +\/- 0.3 years) that belonged to a professional football academy. Tibial scans were performed at 4%, 14% and 38% sites using peripheral quantitative computed tomography immediately before and 12 weeks after increased football-specific training. Training was analysed using GPS to quantify peak speed, average speed, total distance and high-speed distance. Analyses were conducted with bias-corrected and accelerated bootstrapped 95% confidence intervals (BCa 95% CI). There were increases in bone mass at the 4% (mean \u00e2\u02c6\u2020 = 0.15 g, BCa 95% CI = 0.07, 0.26 g, g = 0.72), 14% (mean \u00e2\u02c6\u2020 = 0.04 g, BCa 95% CI = 0.02, 0.06 g, g = 1.20), and 38% sites (mean \u00e2\u02c6\u2020 = 0.03 g, BCa 95% CI = 0.01, 0.05 g, g = 0.61). There were increases in trabecular density (4%), (mean \u00e2\u02c6\u2020 = 3.57 mg.cm(-3), BCa 95% CI = 0.38, 7.05 mg.cm(-3), g = 0.53), cortical dentsity (14%) (mean \u00e2\u02c6\u2020 = 5.08 mg.cm(-3), BCa 95% CI = 0.19, 9.92 mg.cm(-3), g = 0.49), and cortical density (38%) (mean \u00e2\u02c6\u2020 = 6.32 mg.cm(-3), BCa 95% CI = 4.31, 8.90 mg.cm(-3), g = 1.22). Polar stress strain index (mean \u00e2\u02c6\u2020 = 50.56 mm(3), BCa 95% CI = 10.52, 109.95 mm(3), g = 0.41), cortical area (mean \u00e2\u02c6\u2020 = 2.12 mm(2), BCa 95% CI = 0.09, 4.37 mm(2), g = 0.48) and thickness (mean \u00e2\u02c6\u2020 = 0.06 mm, BCa 95% CI = 0.01, 0.13 mm, g = 0.45) increased at the 38% site. Correlations revealed positive relationships between total distance and increased cortical density (38%) (r = 0.39, BCa 95% CI = 0.02, 0.66), and between peak speed and increased trabecular density (4%) (r = 0.43, BCa 95% CI = 0.03, 0.73). There were negative correlations between total (r = -0.21, BCa 95% CI = -0.65, -0.12) and high-speed distance (r = -0.29, BCa 95% CI = -0.57, -0.24) with increased polar stress strain index (38%). Results suggest that despite football training relating to increases in bone characteristics in male academy footballers, the specific training variables promoting adaptation over a 12-week period may vary. Further studies conducted over a longer period are required to fully elucidate the time-course of how certain football-specific training characteristics influence bone structural properties.<\/p>\n","protected":false},"excerpt":{"rendered":"
We examined the relationship between football-specific training and changes in bone structural properties across a 12-week period in 15 male<\/p>\n","protected":false},"author":22,"parent":0,"menu_order":0,"template":"","format":"standard","meta":{"_acf_changed":false},"tags":[],"thema":[5926,5866,5862,5940],"produktgruppe":[5825],"literatur_kategorie":[7221],"class_list":["post-166656","literatur","type-literatur","status-publish","format-standard","hentry","thema-athletics-en","thema-diagnostics-using-leonardo-pqct","thema-pqct-en","thema-research-en","produktgruppe-pqct-en","literatur_kategorie-clinical-studies"],"acf":[],"_links":{"self":[{"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/literatur\/166656","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\/22"}],"version-history":[{"count":0,"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/literatur\/166656\/revisions"}],"wp:attachment":[{"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/media?parent=166656"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/tags?post=166656"},{"taxonomy":"thema","embeddable":true,"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/thema?post=166656"},{"taxonomy":"produktgruppe","embeddable":true,"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/produktgruppe?post=166656"},{"taxonomy":"literatur_kategorie","embeddable":true,"href":"https:\/\/stratec-med.com\/en\/wp-json\/wp\/v2\/literatur_kategorie?post=166656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}