Clinical Edge

Summaries of Must-Read Clinical Literature, Guidelines, and FDA Actions

Adolescent Muscle Mass, Activity, and Diet Assessed

Pediatr Obes; ePub 2018 Sep 17; Hao, Pollock, et al

Physical activity and consumption of both sugar‐sweetened beverages and saturated fats are associated with skeletal muscle mass in adolescents, according to a recent study. More importantly, these findings suggest that sugar‐sweetened beverage intake may attenuate the beneficial effects of physical activity on skeletal muscle mass. Researchers assessed diet with 4 to 7 24‐hour recalls and physical activity by accelerometry in 640 adolescents. Using total body measures of fat‐free soft tissue mass and fat mass assessed by dual‐energy X‐ray absorptiometry, the skeletal muscle mass index (SMMI) was derived by adjusting fat‐free soft tissue mass for fat mass in addition to height. They found:

  • SMMI was negatively associated with consumption of sugar‐sweetened beverages (standardized beta coefficient [β] = −0.10) and saturated fats (β = −0.28).
  • SMMI was positively associated with physical activity (moderate + vigorous) (β = 0.20).
  • In further analysis, a significant interaction was observed between physical activity and sugar‐sweetened beverage intake on SMMI.
Citation:

Hao G, Pollock NK, Harris RA, Gutin B, Su S, Wang X. Associations between muscle mass, physical activity and dietary behaviour in adolescents. [Published online ahead of print September 17, 2018]. Pediatr Obes. doi:10.1111/ijpo.12471.

This Week's Must Reads

Concomitant Vaccines Among Youth Receiving Tdap, Vaccine; ePub 2018 Sep 25; Doke, Fitzgerald, et al

Vaccine Perceptions Within Homeschooling Community, Vaccine; ePub 2018 Sep 22; McCoy, Painter, et al

Vaccination Exemption Pockets Investigated, Vaccine; ePub 2018 Oct 5; Gromis, Liu

Missed HepB Birth Vaccine and Under-Immunization , J Infect; ePub 2018 Oct 4; Wilson, Taylor, et al

Rubella Immunity and Serum PFASs: Sex and Analytics, PLoS One; ePub 2018 Sep 24; Pilkerton, Hobbs, et al

Must Reads in Adolescent Medicine

Adolescent Muscle Mass, Activity, and Diet Assessed , Pediatr Obes; ePub 2018 Sep 17; Hao, Pollock, et al

Timely Addiction Treatment and Retention in Care , JAMA Pediatrics; ePub 2018 Sep 10; Hadland, et al

Adolescent Use of E-cigarette Products Examined, Pediatrics; ePub 2018 Sep 10; McMillen, et al

Discrimination Concern, Behavioral Issues Linked, JAMA Pediatrics; ePub 2018 Aug 20; Leventhal, et al

Adolescent Females Not Meeting Activity Guidelines, JAMA Pediatrics; ePub 2018 Jun 11; Armstrong, et al