List clearly and precisely the assessment method of muscular strength and put the standard norm for each test based on age ?

Assessment Method: Muscular Strength

1. Handgrip Strength Test:
- Method: The individual squeezes a hand dynamometer as hard as possible.
- Standard Norms (based on age):
- Adults (20-29 years): Males: 45-55 kg, Females: 25-35 kg
- Adults (30-39 years): Males: 43-53 kg, Females: 23-33 kg
- Adults (40-49 years): Males: 41-51 kg, Females: 21-31 kg
- Adults (50-59 years): Males: 39-49 kg, Females: 19-29 kg
- Adults (60-69 years): Males: 37-47 kg, Females: 17-27 kg
- Adults (70+ years): Males: 35-45 kg, Females: 15-25 kg

2. One Repetition Maximum (1RM) Test:
- Method: The individual performs a single maximum effort lift for a specific exercise (e.g., bench press, squat).
- Standard Norms (based on age):
- No specific standard norms based on age, as 1RM varies greatly depending on factors like training history, body weight, and gender.

3. Push-Up Test:
- Method: The individual performs as many push-ups as possible with proper form.
- Standard Norms (based on age):
- Adults (20-29 years): Males: 35-44 reps, Females: 20-29 reps
- Adults (30-39 years): Males: 30-39 reps, Females: 15-24 reps
- Adults (40-49 years): Males: 25-34 reps, Females: 10-19 reps
- Adults (50-59 years): Males: 20-29 reps, Females: 5-14 reps
- Adults (60-69 years): Males: 15-24 reps, Females: 1-9 reps
- Adults (70+ years): Males: 10-19 reps, Females: 1-4 reps

4. Sit-Up Test:
- Method: The individual performs as many sit-ups as possible within a specific time frame.
- Standard Norms (based on age):
- Adults (20-29 years): Males: 40-49 reps, Females: 35-44 reps
- Adults (30-39 years): Males: 35-44 reps, Females: 30-39 reps
- Adults (40-49 years): Males: 30-39 reps, Females: 25-34 reps
- Adults (50-59 years): Males: 25-34 reps, Females: 20-29 reps
- Adults (60-69 years): Males: 20-29 reps, Females: 15-24 reps
- Adults (70+ years): Males: 15-24 reps, Females: 10-19 reps

Note: The standard norms provided are general guidelines and may vary depending on the specific assessment protocol and population studied. It is always recommended to consult with a fitness professional or refer to specific research studies for more accurate and detailed norms.