Measurement of Joint Mobility and Muscle Elasticity: Sit-and-Reach Test, Goniometry and Functional Tests
Proper nutrition before testing is essential for obtaining accurate and reliable results. Here are the main recommendations:
Drink 500-600 ml of water 2-3 hours before testing. Avoid caffeine and alcohol for 24 hours before.
Eat a light carbohydrate-containing snack (banana, oatmeal) 3-4 hours before. Avoid heavy, fatty food.
Moderate protein amount (20-30 g) 2-3 hours before. Ensure the body has amino acids for recovery.
Last meal — no later than 2-3 hours before the test. After the test, consume a protein + carbohydrate combination within 30-60 minutes.
Some sports supplements may help achieve better results during testing:
| Supplement | Effect | Recommended Dose | When to Take |
|---|---|---|---|
| Creatine | Increases strength and power | 3-5 g per day | Daily, 30 min before the test |
| Beta-alanine | Reduces muscle acidity | 3-5 g per day | 30-60 min before the test |
| Caffeine | Improves endurance and focus | 3-6 mg/kg body weight | 45-60 min before the test |
| L-citrulline | Improves blood flow, reduces fatigue | 6-8 g | 45-60 min before the test |
| BCAA/EAA | Reduces muscle damage | 5-10 g | Before and after testing |
To achieve better results, it is recommended to follow these principles:
Test every 4-8 weeks so you can track progress and adjust your training program.
Train specifically — if the test measures speed, include sprint exercises; if strength, include progressive overload training.
7-9 hours of quality sleep are essential for optimal athletic form. After intense training, allow 48-72 hours for recovery.
Regularly analyze results — monitor trends, identify weak points and adjust the plan accordingly.
A proper warm-up can improve results. Recommended structure:
Testing must be safe. Key injury prevention rules:
The most common flexibility test is the seated reach (sit-and-reach) test. Sitting on the floor with straight legs, slowly bend forward and push the measuring device with your fingertips. It is important to move slowly, without sudden swings, and to warm up lightly before the test.
Several attempts are made, and the best result is recorded. The test measures not only flexibility but also the mobility of the lower back and posterior thigh area, so it is widely used to assess overall physical fitness.
The result reflects the flexibility of the lower back and posterior thigh area, but evaluate it according to age and sex tables. Flexibility is highly individual and depends on body structure — long arms or a short torso can produce a better result regardless of training level.
The most important thing is your own change: an improving result indicates an increasing range of motion. Do not compare yourself with others, because body proportions cause large differences.
The result is misleading if you tested without a warm-up, in the morning when muscles are stiffer, or after an injury. Flexibility changes during the day, so measure at a similar time. Related tests: horizontal jump and body composition test.
Do a light warm-up before the test — a few minutes of walking or light movement is enough to prepare the muscles. Perform the test at a similar time of day, because flexibility naturally varies throughout the day.
Instead of one-off measurements, track the trend: regular, even small improvements in your result show that stretching and movement exercises are beneficial. Do not seek quick results — flexibility increases gradually.
Stretching exercises give the best result when performed regularly, not only before the test. You will not improve flexibility overnight — devote several weeks of consistent work and only then evaluate changes.
If the result does not change for several weeks, review the frequency and technique of your stretching exercises — flexibility requires regular rather than infrequent intense work. Do not forget the warm-up before each attempt.
Perform the test regularly, for example every few weeks, and record the results — this way you will see whether stretching exercises provide real benefits or whether it is worth changing your approach to flexibility training.