Adolescent physical activity and bone strength at the proximal femurin adulthood

Stefan A. Jackowski, Saija A. Kontulainen, David M L Cooper, Joel L. Lanovaz, Thomas J. Beck, Adam D G Baxter-Jones

Research output: Contribution to journalArticle

Abstract

Introduction: Physical activity (PA) enhances bone structural strength at the proximal femur in adolescence, but whether these benefits are maintained into early adulthood remains unknown. The purpose of this study was to investigate whether males and females, described as active, average, and inactive during adolescence, display differences in structural strength at the proximal femur in early adulthood (20-30 yr). Methods: One hundred four participants (55 males and 49 females) from the Pediatric Bone Mineral Accrual Study (PBMAS) were categorized into adolescent PA groupings (inactive, average, and active) using the Physical Activity Questionnaire for Adolescents. Cross-sectional area and section modulus (Z) at the narrow neck, intertrochanter, and femoral shaft (S) sites of the proximal femur were assessed using hip structural analysis in young adulthood from femoral neck dual-energy X-ray absorptiometry scans. Group differences were assessed using ANCOVA, controlling for adult height (Ht), adult weight (Wt), adolescent bone geometry, sex, percentage adult total body lean tissue (LTM%), and adult PA levels. Results: Active adolescents had significantly greater adjusted bone geometric measures at all sites than their inactive classified peers during adolescence (P <0.05). In adulthood, when adjusted for Ht, Wt, adolescent bone geometry, sex, LTM%, and adult PA levels, adolescent participants categorized as active had significantly greater adjusted adult bone geometric measures at the proximal femur than adult participants who were classified as inactive during adolescence (P <0.05). Conclusions: Skeletal advantages associated with adolescence activity appear to confer greater geometric bone structural strength at the proximal femur in young adulthood.

Original languageEnglish (US)
Pages (from-to)736-744
Number of pages9
JournalMedicine and Science in Sports and Exercise
Volume46
Issue number4
DOIs
StatePublished - 2014

Fingerprint

Exercise
Bone and Bones
Femur
Femur Neck
Weights and Measures
Photon Absorptiometry
Minerals
Hip
Pediatrics

Keywords

  • bone geometry
  • Hip structural analysis
  • lean tissue mass
  • longitudinal
  • physical activity questionnaire

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Jackowski, S. A., Kontulainen, S. A., Cooper, D. M. L., Lanovaz, J. L., Beck, T. J., & Baxter-Jones, A. D. G. (2014). Adolescent physical activity and bone strength at the proximal femurin adulthood. Medicine and Science in Sports and Exercise, 46(4), 736-744. https://doi.org/10.1249/MSS.0000000000000154

Adolescent physical activity and bone strength at the proximal femurin adulthood. / Jackowski, Stefan A.; Kontulainen, Saija A.; Cooper, David M L; Lanovaz, Joel L.; Beck, Thomas J.; Baxter-Jones, Adam D G.

In: Medicine and Science in Sports and Exercise, Vol. 46, No. 4, 2014, p. 736-744.

Research output: Contribution to journalArticle

Jackowski, SA, Kontulainen, SA, Cooper, DML, Lanovaz, JL, Beck, TJ & Baxter-Jones, ADG 2014, 'Adolescent physical activity and bone strength at the proximal femurin adulthood', Medicine and Science in Sports and Exercise, vol. 46, no. 4, pp. 736-744. https://doi.org/10.1249/MSS.0000000000000154
Jackowski, Stefan A. ; Kontulainen, Saija A. ; Cooper, David M L ; Lanovaz, Joel L. ; Beck, Thomas J. ; Baxter-Jones, Adam D G. / Adolescent physical activity and bone strength at the proximal femurin adulthood. In: Medicine and Science in Sports and Exercise. 2014 ; Vol. 46, No. 4. pp. 736-744.
@article{473bf230e01c45abaaa9898d5416a2dc,
title = "Adolescent physical activity and bone strength at the proximal femurin adulthood",
abstract = "Introduction: Physical activity (PA) enhances bone structural strength at the proximal femur in adolescence, but whether these benefits are maintained into early adulthood remains unknown. The purpose of this study was to investigate whether males and females, described as active, average, and inactive during adolescence, display differences in structural strength at the proximal femur in early adulthood (20-30 yr). Methods: One hundred four participants (55 males and 49 females) from the Pediatric Bone Mineral Accrual Study (PBMAS) were categorized into adolescent PA groupings (inactive, average, and active) using the Physical Activity Questionnaire for Adolescents. Cross-sectional area and section modulus (Z) at the narrow neck, intertrochanter, and femoral shaft (S) sites of the proximal femur were assessed using hip structural analysis in young adulthood from femoral neck dual-energy X-ray absorptiometry scans. Group differences were assessed using ANCOVA, controlling for adult height (Ht), adult weight (Wt), adolescent bone geometry, sex, percentage adult total body lean tissue (LTM{\%}), and adult PA levels. Results: Active adolescents had significantly greater adjusted bone geometric measures at all sites than their inactive classified peers during adolescence (P <0.05). In adulthood, when adjusted for Ht, Wt, adolescent bone geometry, sex, LTM{\%}, and adult PA levels, adolescent participants categorized as active had significantly greater adjusted adult bone geometric measures at the proximal femur than adult participants who were classified as inactive during adolescence (P <0.05). Conclusions: Skeletal advantages associated with adolescence activity appear to confer greater geometric bone structural strength at the proximal femur in young adulthood.",
keywords = "bone geometry, Hip structural analysis, lean tissue mass, longitudinal, physical activity questionnaire",
author = "Jackowski, {Stefan A.} and Kontulainen, {Saija A.} and Cooper, {David M L} and Lanovaz, {Joel L.} and Beck, {Thomas J.} and Baxter-Jones, {Adam D G}",
year = "2014",
doi = "10.1249/MSS.0000000000000154",
language = "English (US)",
volume = "46",
pages = "736--744",
journal = "Medicine and Science in Sports and Exercise",
issn = "0195-9131",
publisher = "Lippincott Williams and Wilkins",
number = "4",

}

TY - JOUR

T1 - Adolescent physical activity and bone strength at the proximal femurin adulthood

AU - Jackowski, Stefan A.

AU - Kontulainen, Saija A.

AU - Cooper, David M L

AU - Lanovaz, Joel L.

AU - Beck, Thomas J.

AU - Baxter-Jones, Adam D G

PY - 2014

Y1 - 2014

N2 - Introduction: Physical activity (PA) enhances bone structural strength at the proximal femur in adolescence, but whether these benefits are maintained into early adulthood remains unknown. The purpose of this study was to investigate whether males and females, described as active, average, and inactive during adolescence, display differences in structural strength at the proximal femur in early adulthood (20-30 yr). Methods: One hundred four participants (55 males and 49 females) from the Pediatric Bone Mineral Accrual Study (PBMAS) were categorized into adolescent PA groupings (inactive, average, and active) using the Physical Activity Questionnaire for Adolescents. Cross-sectional area and section modulus (Z) at the narrow neck, intertrochanter, and femoral shaft (S) sites of the proximal femur were assessed using hip structural analysis in young adulthood from femoral neck dual-energy X-ray absorptiometry scans. Group differences were assessed using ANCOVA, controlling for adult height (Ht), adult weight (Wt), adolescent bone geometry, sex, percentage adult total body lean tissue (LTM%), and adult PA levels. Results: Active adolescents had significantly greater adjusted bone geometric measures at all sites than their inactive classified peers during adolescence (P <0.05). In adulthood, when adjusted for Ht, Wt, adolescent bone geometry, sex, LTM%, and adult PA levels, adolescent participants categorized as active had significantly greater adjusted adult bone geometric measures at the proximal femur than adult participants who were classified as inactive during adolescence (P <0.05). Conclusions: Skeletal advantages associated with adolescence activity appear to confer greater geometric bone structural strength at the proximal femur in young adulthood.

AB - Introduction: Physical activity (PA) enhances bone structural strength at the proximal femur in adolescence, but whether these benefits are maintained into early adulthood remains unknown. The purpose of this study was to investigate whether males and females, described as active, average, and inactive during adolescence, display differences in structural strength at the proximal femur in early adulthood (20-30 yr). Methods: One hundred four participants (55 males and 49 females) from the Pediatric Bone Mineral Accrual Study (PBMAS) were categorized into adolescent PA groupings (inactive, average, and active) using the Physical Activity Questionnaire for Adolescents. Cross-sectional area and section modulus (Z) at the narrow neck, intertrochanter, and femoral shaft (S) sites of the proximal femur were assessed using hip structural analysis in young adulthood from femoral neck dual-energy X-ray absorptiometry scans. Group differences were assessed using ANCOVA, controlling for adult height (Ht), adult weight (Wt), adolescent bone geometry, sex, percentage adult total body lean tissue (LTM%), and adult PA levels. Results: Active adolescents had significantly greater adjusted bone geometric measures at all sites than their inactive classified peers during adolescence (P <0.05). In adulthood, when adjusted for Ht, Wt, adolescent bone geometry, sex, LTM%, and adult PA levels, adolescent participants categorized as active had significantly greater adjusted adult bone geometric measures at the proximal femur than adult participants who were classified as inactive during adolescence (P <0.05). Conclusions: Skeletal advantages associated with adolescence activity appear to confer greater geometric bone structural strength at the proximal femur in young adulthood.

KW - bone geometry

KW - Hip structural analysis

KW - lean tissue mass

KW - longitudinal

KW - physical activity questionnaire

UR - http://www.scopus.com/inward/record.url?scp=84897085538&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84897085538&partnerID=8YFLogxK

U2 - 10.1249/MSS.0000000000000154

DO - 10.1249/MSS.0000000000000154

M3 - Article

C2 - 24002345

AN - SCOPUS:84897085538

VL - 46

SP - 736

EP - 744

JO - Medicine and Science in Sports and Exercise

JF - Medicine and Science in Sports and Exercise

SN - 0195-9131

IS - 4

ER -