📋 Test Instructions
- Use a standard chair without armrests (seat height approximately 44 cm / 17 inches)
- Place the chair against a wall to ensure stability and safety
- Sit in the middle of the chair with your back straight, feet flat on the floor, shoulder-width apart
- Cross your arms over your chest
- After clicking "Start Test," begin repeating full stand-up and sit-down movements as fast as you can when you hear the voice prompt "Go"
- Stop when you hear the voice prompt "Stop" and record the number of complete repetitions
⏱️ 30-Second Timer (with Voice Prompts)
30
Click "Start Test" to begin the timer
Live Count:
reps
📊 Assessment Results
--
Actual Age
--
Biological Age (Estimated)
💪 Lower Body Strength Level Assessment
Weak
Below Avg
Normal
Excellent
🏋️ Health & Fitness Recommendations
📑 Reference Standards Table (Based on Jones & Rikli Research Data)
| Age Group | Male (reps) | Female (reps) |
|---|---|---|
| 18-35 | 30-38 | 28-35 |
| 36-45 | 26-34 | 24-32 |
| 46-55 | 22-30 | 20-28 |
| 56-59 | 18-26 | 16-24 |
| 60-64 | 14-19 | 12-17 |
| 65-69 | 12-18 | 11-16 |
| 70-74 | 12-17 | 10-15 |
| 75-79 | 11-17 | 10-15 |
| 80-84 | 10-15 | 9-14 |
| 85-89 | 8-14 | 8-13 |
| 90-94 | 7-12 | 4-11 |
⚠️ Disclaimer:
This assessment tool is based on normative data from studies by Jones & Rikli (1999, 2002) and others, and is for reference only. It is not a substitute for professional medical diagnosis.
Biological age is influenced by many factors; the 30-Second Sit-to-Stand Test primarily reflects lower body strength and endurance.
If you have any health concerns, please consult a qualified healthcare professional. Please ensure you are physically fit to perform this type of exercise assessment before testing.