Behavioral intervention in adolescents improves bone mass, yet lactose maldigestion is a barrier
Calcium intake during adolescence is important for attainment of peak bone mass. Lactose maldigestion is an autosomal recessive trait, leading to lower calcium intake. The Adequate Calcium Today study aimed to determine if a school-based targeted behavioral intervention over one year could improve c...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Journal Article |
| Published: |
MDPI Publishing
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/66948 |
| _version_ | 1848761434750582784 |
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| author | Lee, Y. Savaiano, D. McCabe, G. Pottenger, F. Welshimer, K. Weaver, C. McCabe, L. Novotny, R. Read, M. Going, S. Mason, A. Van Loan, M. Boushey, Carol |
| author_facet | Lee, Y. Savaiano, D. McCabe, G. Pottenger, F. Welshimer, K. Weaver, C. McCabe, L. Novotny, R. Read, M. Going, S. Mason, A. Van Loan, M. Boushey, Carol |
| author_sort | Lee, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Calcium intake during adolescence is important for attainment of peak bone mass. Lactose maldigestion is an autosomal recessive trait, leading to lower calcium intake. The Adequate Calcium Today study aimed to determine if a school-based targeted behavioral intervention over one year could improve calcium intake and bone mass in early adolescent girls. The school-randomized intervention was conducted at middle schools in six states over one school year. A total of 473 girls aged 10–13 years were recruited for outcome assessments. Bone mineral content (BMC) was determined by dual energy X-ray absorptiometry. Dietary calcium intake was assessed with a semi-quantitative food frequency questionnaire. Baseline calcium intake and BMC were not significantly different between groups. After the intervention period, there were no differences in changes in calcium intake and BMC at any site between groups. An unanticipated outcome was a greater increase in spinal BMC among lactose digesters than lactose maldigesters in the intervention schools only (12 months) (6.9 ± 0.3 g vs. 6.0 ± 0.4 g, p = 0.03) and considering the entire study period (18 months) (9.9 ± 0.4 vs. 8.7 ± 0.5 g, p < 0.01). Overall, no significant differences between the intervention and control schools were observed. However, lactose digesters who received the intervention program increased bone mass to a greater extent than lactose maldigesters. |
| first_indexed | 2025-11-14T10:31:37Z |
| format | Journal Article |
| id | curtin-20.500.11937-66948 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:31:37Z |
| publishDate | 2018 |
| publisher | MDPI Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-669482018-07-13T03:22:54Z Behavioral intervention in adolescents improves bone mass, yet lactose maldigestion is a barrier Lee, Y. Savaiano, D. McCabe, G. Pottenger, F. Welshimer, K. Weaver, C. McCabe, L. Novotny, R. Read, M. Going, S. Mason, A. Van Loan, M. Boushey, Carol Calcium intake during adolescence is important for attainment of peak bone mass. Lactose maldigestion is an autosomal recessive trait, leading to lower calcium intake. The Adequate Calcium Today study aimed to determine if a school-based targeted behavioral intervention over one year could improve calcium intake and bone mass in early adolescent girls. The school-randomized intervention was conducted at middle schools in six states over one school year. A total of 473 girls aged 10–13 years were recruited for outcome assessments. Bone mineral content (BMC) was determined by dual energy X-ray absorptiometry. Dietary calcium intake was assessed with a semi-quantitative food frequency questionnaire. Baseline calcium intake and BMC were not significantly different between groups. After the intervention period, there were no differences in changes in calcium intake and BMC at any site between groups. An unanticipated outcome was a greater increase in spinal BMC among lactose digesters than lactose maldigesters in the intervention schools only (12 months) (6.9 ± 0.3 g vs. 6.0 ± 0.4 g, p = 0.03) and considering the entire study period (18 months) (9.9 ± 0.4 vs. 8.7 ± 0.5 g, p < 0.01). Overall, no significant differences between the intervention and control schools were observed. However, lactose digesters who received the intervention program increased bone mass to a greater extent than lactose maldigesters. 2018 Journal Article http://hdl.handle.net/20.500.11937/66948 10.3390/nu10040421 http://creativecommons.org/licenses/by/4.0/ MDPI Publishing fulltext |
| spellingShingle | Lee, Y. Savaiano, D. McCabe, G. Pottenger, F. Welshimer, K. Weaver, C. McCabe, L. Novotny, R. Read, M. Going, S. Mason, A. Van Loan, M. Boushey, Carol Behavioral intervention in adolescents improves bone mass, yet lactose maldigestion is a barrier |
| title | Behavioral intervention in adolescents improves bone mass, yet lactose maldigestion is a barrier |
| title_full | Behavioral intervention in adolescents improves bone mass, yet lactose maldigestion is a barrier |
| title_fullStr | Behavioral intervention in adolescents improves bone mass, yet lactose maldigestion is a barrier |
| title_full_unstemmed | Behavioral intervention in adolescents improves bone mass, yet lactose maldigestion is a barrier |
| title_short | Behavioral intervention in adolescents improves bone mass, yet lactose maldigestion is a barrier |
| title_sort | behavioral intervention in adolescents improves bone mass, yet lactose maldigestion is a barrier |
| url | http://hdl.handle.net/20.500.11937/66948 |