Sarah Park

Writes about weight loss and recomposition training, summarising published research on volume, cardio and protein for general audiences.

How the articles are built

Articles under this byline are researched, not tested: manufacturer specifications, published research, retailer pricing with a date, and published reviews from named outlets. Where a piece has not involved using a product, it says so.

  • Programming articles built from published exercise-science sources
  • Calorie-deficit and protein guidance cited to named studies and guidelines
  • Articles are general information, not individual coaching

Articles by Sarah Park

Dumbbell vs Kettlebell: Which Builds Strength Faster?

Dumbbell vs kettlebell from the trials we could open: none compares them head to head, so step sizes and price per kg at Rogue decide the buy.
November 12, 2026

Progressive Overload Methods: 4 Ways to Add Weight

Linear, double progression, reps in reserve and percentage-based plans compared, with the ACSM 2-10% load rule and the arithmetic of each jump.
October 28, 2026

Beginner Full-Body Workout Plan: A Real 4-Week Program

Three sessions a week, six lifts, and a progression rule that tells you exactly when to add weight. Written for gyms with one rack and a dumbbell rack.
August 13, 2026

Best Workouts for Weight Loss: Real Results in 2026

HIIT burns 300-400 cal in 30 min. Best workouts for weight loss ranked: HIIT, cardio, resistance training, and 3-day beginner programs.
January 22, 2026

Topics covered

  • Weight loss and recomposition programming
  • Resistance training for fat loss
  • HIIT and steady-state cardio integration
  • Calorie deficit and macro planning

About the site

Gym Navigator is a directory of gyms and fitness facilities with a blog on membership costs, equipment and training.How the directory is built andhow affiliate links are disclosed.