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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 VOâ‚‚max, isometric leg strength, resting heart rate, heart rate variability indices, and heart rate recovery will be taken before and after the intervention.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Step-up Exercise Group (STP) | Experimental | Participants performed loaded step-up exercises at 80-85% of maximum heart rate using a load of 20% body weight, 3 sessions per week for 6 weeks with progressive volume. |
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| Treadmill Running Group (R) | Active Comparator | Participants performed continuous treadmill running at 80-85% of maximum heart rate, 3 sessions per week for 6 weeks with progressive volume. |
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| Control Group (C) | No Intervention | Participants did not engage in any structured exercise training during the 6-week period. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Loaded Step-Up Exercise | Behavioral | 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. |
| Measure | Description | Time Frame |
|---|---|---|
| Estimated VO2max | Estimated maximal oxygen uptake assessed via Yo-Yo Intermittent Recovery Test Level 1 | Baseline and 6 weeks |
| Isometric Leg Strength | Maximum isometric leg strength measured using a Takei back-leg lift dynamometer | Baseline and 6 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Heart Rate Variability | HRV indices including pNN50 and MeanRR measured via Polar H10 during supine rest | Baseline and 6 weeks |
| Heart Rate Recovery | Time to recovery after and between sets of exercise sessions measured weekly across the 6-week intervention |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ankara University Faculty of Sport Sciences | Ankara | Golbasi | Turkey (Türkiye) |
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| ID | Term |
|---|---|
| D057185 | Sedentary Behavior |
| ID | Term |
|---|---|
| D001519 | Behavior |
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|
| Treadmill Running | Behavioral | Continuous treadmill running at 80-85% of maximum heart rate, 3 sessions per week for 6 weeks with progressive volume increase. |
|
| Weeks 1 through 6 |