# data[].attributes.body
The Illinois agility test has an inter-rater reliability coefficient of r=.99 for men and a test-retest reliability coefficient of r=.68 for men.

Raya, Michele A., et al. “Comparison of Three Agility Tests with Male Servicemembers: Edgren Side Step Test, T-Test, and Illinois Agility Test.” Journal of Rehabilitation Research and Development, vol. 50, no. 7, 2013, pp. 951–960, https://doi.org/10.1682/jrrd.2012.05.0096.

# data[].attributes.body
Right upon termination VO₂ was measured with four 20 s samples and VO₂max was estimated by retroextrapolating the O₂recovery curve at time zero of recovery. For adults, similar measurements indicated that the same equation could be used keeping age constant at 18 (r=0.90, n = 77 men and women 18–50 years old). Test‐retest reliability coefficients were 0.89 for children (139 boys and girls 6–16 years old) and 0.95 for adults (81 men and women, 20–45 years old). Normal data are also available for schoolchildren and adults and estimated VC₂max were found comparable to other tests and/or populations.

Léger, L. A., Mercier, D., Gadoury, C., & Lambert, J. (1988). The multistage 20 metre shuttle run test for aerobic fitness. Journal of Sports Sciences, 6(2), 93–101.* https://doi.org/10.1080/02640418808729800

# data[].attributes.body
Abdominal muscle strength and endurance are widely assessed by means of a timed 1‐minute full sit‐up test, despite the more accepted use of half sit‐ups as a muscular strength and endurance exercise. In the present study, the validity and reliability of a 1‐minute half sit‐up protocol was investigated. A total of 142 different subjects participated in one of four studies designed to assess test‐retest reliability, interapparatus reliability, intertester reliability, and validity. Findings included very high test‐retest reliability (r = 0.98), moderately high interapparatus reliability (r = 0.71), and high intertester reliability (r = 0.76). The correlation of the half sit‐up test with the full sit‐up test of the National YMCA was 0.67 and the correlation with isometric abdominal strength was 0.38. The proposed half sit‐up test was found to be reliable and is proposed as an alternative method of evaluating abdominal strength and endurance.

Diener, M. H., Golding, L. A., & Diener, D. (1995). Validity and reliability of a one‐minute half sit‐up test of abdominal strength and endurance. Sports Medicine, Training and Rehabilitation, 6(2), 105–119. https://doi.org/10.1080/15438629509512042

# data[].attributes.body
sit and reach test has a mean reliability coefficient of r= 0.67 for the hamstring extensibility which is moderate mean criterion-related validity and r = 0.35 for lumbar extensibility which has low mean for estimating lumbar extensibility.

Mayorga-Vega, D., Merino-Marban, R., & Viciana, J. (2014). Criterion-Related Validity of Sit-and-Reach Tests for Estimating Hamstring and Lumbar Extensibility: a Meta-Analysis. Journal of sports science & medicine, 13(1), 1–14.

# data[].attributes.body
Group 2

Countermovement Jump (CMJ) tests in men and women

Vanrenterghem et al. (2012)

— CMJ force-plate reliability

Male soccer and team-sport athletes

Jump height (flight time): r = 0.96

Peak power: r = 0.92–0.95
This is excellent reliability across jumps.
(Source: Journal of Strength and Conditioning Research)

Markovic et al. (2004)

— CMJ reliability in mixed group

Both sexes included

Vertical jump height (CMJ): r = 0.94

Coefficient of variation (CV) ~4–5%
Reliable across multiple test days.
(Source: Journal of Sports Medicine)

Perez-Cejuela et al. (2017)

— Force plate CMJ reproducibility

Well-trained men & women

Flight time jump height: r = 0.97

Peak force: r = 0.93–0.96
Very high consistency on force plate metrics.
(Source: European Journal of Sport Science)

Cormack et al. (2008)

— Practical validity on jump mats

Male team-sport players

CMJ jump height (jump-mat): ICC = 0.89–0.92
(This reflects typical commercial jump mat reliability compared to force plates.)
(Source: Journal of Sports Sciences)

1. Vanrenterghem J, et al. (2012) — J Strength Cond Res.
Reliability of CMJ metrics in athletes.

2. Markovic G, et al. (2004) — J Sports Med.
Meta-analysis on reliability of jump tests.

3. Pérez-Cejuela A, et al. (2017) — Eur J Sport Sci.
Force plate reproducibility.

4. Cormack SJ, et al. (2008) — J Sports Sciences.
Practical device comparison in team-sport athletes.

# data[].attributes.body
20 meter sprint test scored an ICC score of 0.95 and a CV score of 0.52%.

The validity test scored 0.63

Holmberg, P. M., Olivier, M. H., & Kelly, V. G. (2025). The Reliability of 20 m Sprint Time Using a Novel Assessment Technique. Sensors, 25(7), 2077–2077. https://doi.org/10.3390/s25072077

‌

# data[].attributes.body
The stork test has reliability coeficients of r=0.91 an 0.93.

https://pmc.ncbi.nlm.nih.gov/articles/PMC4750347/

The stork test is more reliable compared to the flamingo balance test.

https://www.researchgate.net/profile/Mukesh-Sinha-3/publication/295547731_The_Foot_and_Ankle_Online_Journal_A_study_to_associate_the_Flamingo_Test_and_the_Stork_Test_in_measuring_static_balance_on_healthy_adults/links/5c52c0f092851c22a39d4225/The-Foot-and-Ankle-Online-Journal-A-study-to-associate-the-Flamingo-Test-and-the-Stork-Test-in-measuring-static-balance-on-healthy-adults.pdf

# data[].attributes.body
Test-retest reliability across trials was ‘excellent’ (ICC(3,1)=0.922 [95%CI 0.766-0.976], mean difference between scores = 0.55±8.37 shuttles). While the 20-m MSFT has excellent test-retest reliability the small amount of variability in results suggests that retesting of candidates who fail to meet any discriminatory standard by a small margin should be considered.

Fontenelle Dumans Canetti, E., Schram, B., Pope, R., Jay Dawes, J., Lockie, R. G., Campbell, P., & Orr, R. M. (2025). Test-Retest Reliability of the 20-Metre Shuttle Run Test in a Cohort of Police Trainees. SportLogia, 21(2), 1–7. https://doi.org/10.63356/spl.2025.005

# data[].attributes.body
Push up test obtained stability reliability coefficients of r=·90 and ·93 for women and ·95 and ·95 for men.

The criterion validity correlation between revised push-up scores and number of bench press executions with a percentage of the body weight was r=·80 for women and ·87 for men.

Baumgartner, T. A., Oh, S., Chung, H., & Hales, D. (2002). Objectivity, Reliability, and

Validity for a Revised Push-Up Test Protocol. Measurement in Physical Education

and Exercise Science, 6(4), 225–242. https://doi.org/10.1207/S15327841MPEE0604_2