scholarly journals Does Physical Activity in Adolescence Have Site-Specific and Sex-Specific Benefits on Young Adult Bone Size, Content, and Estimated Strength?

2014 ◽  
Vol 29 (2) ◽  
pp. 479-486 ◽  
Author(s):  
Rachel L Duckham ◽  
Adam DG Baxter-Jones ◽  
James D Johnston ◽  
Hassanali Vatanparast ◽  
David Cooper ◽  
...  
Keyword(s):  
Physical Activity ◽  
Young Adult ◽  
Bone Size ◽  
Site Specific ◽  
Adult Bone

scholarly journals The Influence of Organized Physical Activity (Including Gymnastics) on Young Adult Skeletal Traits: Is Maturity Phase Important?

2015 ◽  
Vol 27 (2) ◽  
pp. 285-296 ◽  
Author(s):  
Brittney Bernardoni ◽  
Tamara A. Scerpella ◽  
Paula F. Rosenbaum ◽  
Jill A. Kanaley ◽  
Lindsay N. Raab ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Size ◽  
Young Adult ◽  
Mineral Content ◽  
Independent Predictor ◽  
Size Change ◽  
Gynecological Age ◽  
Dxa Scans ◽  
Buckling Ratio ◽  
Adult Bone

We prospectively evaluated adolescent organized physical activity (PA) as a factor in adult female bone traits. Annual DXA scans accompanied semiannual records of anthropometry, maturity, and PA for 42 participants in this preliminary analysis (criteria: appropriately timed DXA scans at ~1 year premenarche [predictor] and ~5 years postmenarche [dependent variable]). Regression analysis evaluated total adolescent interscan PA and PA over 3 maturity subphases as predictors of young adult bone outcomes: 1) bone mineral content (BMC), geometry, and strength indices at nondominant distal radius and femoral neck; 2) subhead BMC; 3) lumbar spine BMC. Analyses accounted for baseline gynecological age (years pre- or postmenarche), baseline bone status, adult body size and interscan body size change. Gymnastics training was evaluated as a potentially independent predictor, but did not improve models for any outcomes (p < .07). Premenarcheal bone traits were strong predictors of most adult outcomes (semipartial r2 = .21-0.59, p < .001). Adult 1/3 radius and subhead BMC were predicted by both total PA and PA 1-3 years postmenarche (p < .03). PA 3-5 years postmenarche predicted femoral narrow neck width, endosteal diameter, and buckling ratio (p < .05). Thus, participation in organized physical activity programs throughout middle and high school may reduce lifetime fracture risk in females.

scholarly journals Effects of a structured counselling-based intervention to improve physical activity behaviour of adolescents and young adult cancer survivors – the randomized phase II Motivate AYA – MAYA trial

2021 ◽  
pp. 026921552199797
Author(s):  
Jannike Salchow ◽  
Barbara Koch ◽  
Julia Mann ◽  
Julia von Grundherr ◽  
Simon Elmers ◽  
...  
Keyword(s):  
Physical Activity ◽  
Young Adult ◽  
Cancer Survivors ◽  
Intervention Group ◽  
Physical Activity Behaviour ◽  
Post Intervention ◽  
Young Adult Cancer Survivors ◽  
Adult Cancer Survivors ◽  
Young Adult Cancer ◽  
Activity Behaviour

Objective: To explore whether a structured counselling-based intervention increases vigorous physical activity behaviour of adolescent and young adult cancer survivors. Design: Randomized controlled phase II trial. Setting: University Cancer Center Hamburg, Germany. Subjects: Eighty-nine participants (mean age 24.1 ± 6.3) were randomized to control ( n = 44) or intervention group ( n = 45). Interventions: The intervention group was consulted about physical activity behaviour via interview (week 0), and telephone counselling (weeks 1, 3 and 12). The control group only received general physical activity guidelines for cancer survivors (week 0). Main measures: The primary outcome was the rate of participants with ⩾9 metabolic equivalent (MET)-hours per week of vigorous activity post-intervention, measured with the International Physical Activity Questionnaire. Secondary outcomes included assessing physical activity behaviour (e.g. amount and type of physical activity) and quality of life. Assessments were completed in weeks 0 (baseline), 12 (post-intervention) and 52 (follow-up). Results: Sixty-nine participants completed the post-intervention- and 47 the follow-up-assessment. The rate of participants performing vigorous physical activity increased from baseline to post-intervention for both without differing significantly ( P = 0.541). Both increased their total metabolic equivalent from baseline to post-intervention (intervention group from 55.2 ± 43.7 to 61.7 ± 29.4, control group from 75.3 ± 81.4 to 88.3 ± 80.2). At follow-up the intervention group (73.7 ± 80.2) was more active than baseline when compared to the control group (78.5 ± 50.0). Conclusions: A structured counselling-based physical activity intervention did not significantly impact the level of vigorous physical activity behaviour in adolescent and young adult cancer survivors.

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