Body Composition

The impact of recreational beach tennis associated with nutritional counseling on cardiometabolic risk factors in adolescents: a randomized clinical trial.

TL;DR

Recreational beach tennis alone improved some cardiometabolic parameters in adolescents, but combining it with nutritional counseling provided broader benefits, including greater improvements in triglycerides, waist circumference, body fat percentage, and systolic blood pressure.

Key Findings

Both beach tennis alone and beach tennis plus nutritional counseling increased HDL cholesterol after 12 weeks, with no difference between groups.

  • HDL increased by +3.8 mg/dL in the BT group (p < 0.05).
  • HDL increased by +5.9 mg/dL in the BT+N group (p < 0.001).
  • There were no differences between groups in HDL change.
  • The trial randomized 40 adolescents (aged 11-14 years; 20 per group) over 12 weeks.

Fasting glucose decreased only in the group that received beach tennis plus nutritional counseling.

  • The decrease was observed in the BT+N group only, not in the BT group.
  • BT+N received nutritional counseling once a week in addition to twice-weekly beach tennis sessions.

Time x group interactions favored the BT+N group for triglycerides, waist circumference, body fat percentage, and systolic blood pressure.

  • Triglycerides: time x group interaction p < 0.01.
  • Waist circumference: p < 0.001.
  • Body fat percentage: p < 0.05.
  • Systolic blood pressure: p < 0.001.
  • Analyses followed the intention-to-treat principle.

No significant changes were observed in LDL cholesterol, total cholesterol, or insulin in either group.

  • These outcomes were measured at baseline and after 12 weeks.
  • The abstract reports no significant changes for these three parameters.

Recreational beach tennis alone improved some cardiometabolic parameters, but adding nutritional counseling yielded broader benefits.

  • The study compared BT alone (twice weekly sessions) with BT plus weekly nutritional counseling.
  • The sample was 67% female, and 45% were overweight or obese.
  • Authors conclude integrated lifestyle interventions are valuable for reducing cardiometabolic risk factors in adolescents.

What This Means

This 12-week randomized trial in 40 adolescents aged 11-14 compared playing recreational beach tennis twice a week with playing beach tennis plus weekly nutritional counseling. About 45% of participants were overweight or obese. Researchers measured blood fats, blood sugar, insulin, blood pressure, and body composition before and after the program. Both groups had higher levels of HDL ("good") cholesterol, with no difference between them. However, only the group that also received nutritional counseling had lower fasting blood glucose, and this group showed greater improvements in triglycerides, waist circumference, body fat percentage, and systolic blood pressure. LDL cholesterol, total cholesterol, and insulin did not change significantly in either group. This research suggests that a fun, recreational sport can help some heart and metabolic health markers in young people, and that pairing it with nutrition guidance may bring wider benefits. The study was small and short, so the findings should be seen as preliminary and need confirmation in larger, longer trials.

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Citation

Pereira D, Jung N, Pedroso R, Heck G, Holstein L, Irigoyen A, et al.. (2026). The impact of recreational beach tennis associated with nutritional counseling on cardiometabolic risk factors in adolescents: a randomized clinical trial.. Archives of endocrinology and metabolism. https://doi.org/10.20945/2359-4292-2026-0124