This study compares the effects of two aerobic exercise methods - loaded step-up exercise and treadmill running - on cardiovascular fitness, leg strength, heart rate variability, and recovery in sedentary adult males. Both exercise groups will train at 80-85% of maximum heart rate, three sessions per week for six weeks. A control group will not participate in any training. Measurements of estimated VO₂max, isometric leg strength, resting heart rate, heart rate variability indices, and heart rate recovery will be taken before and after the intervention.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
36
Step-up exercise performed on an adjustable platform at individually assigned heights (35 cm or 40 cm, based on participant height), with a load equal to 20% of body weight, at 80-85% of maximum heart rate, 3 sessions per week for 6 weeks with progressive volume increase.
Continuous treadmill running at 80-85% of maximum heart rate, 3 sessions per week for 6 weeks with progressive volume increase.
Ankara University Faculty of Sport Sciences
Ankara, Golbasi, Turkey (Türkiye)
Estimated VO2max
Estimated maximal oxygen uptake assessed via Yo-Yo Intermittent Recovery Test Level 1
Time frame: Baseline and 6 weeks
Isometric Leg Strength
Maximum isometric leg strength measured using a Takei back-leg lift dynamometer
Time frame: Baseline and 6 weeks
Heart Rate Variability
HRV indices including pNN50 and MeanRR measured via Polar H10 during supine rest
Time frame: Baseline and 6 weeks
Heart Rate Recovery
Time to recovery after and between sets of exercise sessions measured weekly across the 6-week intervention
Time frame: Weeks 1 through 6
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.