BACKGROUND: Kettlebells, dating back to 1703 in Russia, offer a full-body workout for strength, endurance, and flexibility. They activate back and hip musculature, reduce low back injury risk, and improve postural coordination. Cycling induces muscle hypertrophy, guiding exercise prescription. OBJECTIVE: The study evaluates the impact of kettlebell and cycling exercise on heart rate variability (HRV) in healthy young adults, assessing lifestyle, body mass index (BMI), and relationship with HRV. METHODS: A pilot study at King George's Medical University's Department of Physiology in Lucknow, Uttar Pradesh over a period of 1 year, involved 64 participants, including healthy adults aged 18-35, consenting individuals, and those under 35 diagnosed with any medical conditions were excluded. RESULTS: The study examined the impact of kettlebell and cycling exercise on HRV in 64 healthy individuals. The participants were divided into two groups, with no significant differences in height, weight, BMI, waist circumference, or blood pressure. After exercise, heart rate (HR) increased by 55%, but low frequency (LF) power and high frequency (HF) power decreased. CONCLUSION: The study found that combining kettlebell and cycling exercise can improve cardiovascular health and overall physical fitness in 64 healthy individuals, increasing HR by 55% but decreasing LF and HF power.