A. Attia, W. Dhahbi, A. Chaouachi, J. Padulo, D. P. Wong et al., Measurement errors when estimating the vertical jump height with flight time using photocell devices: the example of Optojump, Biology of Sport, vol.1, issue.1, pp.63-70, 2017.

E. I. Bassa, D. A. Patikas, A. I. Panagiotidou, S. D. Papadopoulou, T. C. Pylianidis et al., The Effect of Dropping Height on Jumping Performance in Trained and Untrained Prepubertal Boys and Girls, Journal of Strength and Conditioning Research, vol.26, issue.8, pp.2258-2264, 2012.

M. F. Bobbert, P. A. Huijing, and G. J. Van-ingen-schenau, Drop jumping. II. The influence of dropping height on the biomechanics of drop jumping, Medicine & Science in Sports & Exercise, vol.19, issue.4, p.339???346, 1987.

J. Cohen, Statistical power analysis for Behavioral sciences, 1969.

J. P. Difiori, Overuse Injuries in Children and Adolescents, The Physician and Sportsmedicine, vol.27, issue.1, pp.75-89, 1999.

V. Kluka, V. Martin, S. G. Vicencio, M. Giustiniani, C. Morel et al., Effect of muscle length on voluntary activation of the plantar flexors in boys and men, European Journal of Applied Physiology, vol.116, issue.5, pp.1043-1051, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01594182

V. Kluka, V. Martin, S. G. Vicencio, A. Jegu, C. Cardenoux et al., Effect of Muscle Length on Voluntary Activation Level in Children and Adults, Medicine & Science in Sports & Exercise, vol.47, issue.4, pp.718-724, 2015.
URL : https://hal.archives-ouvertes.fr/hal-01659897

P. V. Komi and C. Bosco, Utilization of stored elastic energy in leg extensor muscles by men and women, Med Sci Sports, vol.10, issue.4, pp.261-266, 1978.

T. K. Koo and M. Y. Li, A Guideline of Selecting and Reporting Intraclass Correlation Coefficients for Reliability Research, Journal of Chiropractic Medicine, vol.15, issue.2, pp.155-163, 2016.

T. Korff, S. L. Horne, S. J. Cullen, and A. J. Blazevich, Development of lower limb stiffness and its contribution to maximum vertical jumping power during adolescence, Journal of Experimental Biology, vol.212, issue.22, pp.3737-3742, 2009.

K. Kubo, H. Kanehisa, Y. Kawakami, and T. Fukanaga, Growth Changes in the Elastic Properties of Human Tendon Structures, International Journal of Sports Medicine, vol.22, issue.02, pp.138-143, 2001.

D. Lambertz, I. Mora, J. Grosset, and C. Pérot, Evaluation of musculotendinous stiffness in prepubertal children and adults, taking into account muscle activity, Journal of Applied Physiology, vol.95, issue.1, pp.64-72, 2003.

P. Á. Latorre-román, F. J. Villar-macias, and F. García-pinillos, Effects of a contrast training programme on jumping, sprinting and agility performance of prepubertal basketball players, Journal of Sports Sciences, vol.36, issue.7, pp.802-808, 2017.

S. Lazaridis, E. Bassa, D. Patikas, G. Giakas, A. Gollhofer et al., Neuromuscular differences between prepubescents boys and adult men during drop jump, European Journal of Applied Physiology, vol.110, issue.1, pp.67-74, 2010.

S. N. Lazaridis, E. I. Bassa, D. Patikas, K. Hatzikotoulas, F. K. Lazaridis et al., Biomechanical Comparison in Different Jumping Tasks Between Untrained Boys and Men, Pediatric Exercise Science, vol.25, issue.1, pp.101-113, 2013.

C. Leukel, A. Gollhofer, M. Keller, and W. Taube, Phase- and task-specific modulation of soleus H-reflexes during drop-jumps and landings, Experimental Brain Research, vol.190, issue.1, pp.71-79, 2008.

R. J. Martin, E. Dor??, C. A. Hautier, E. Van-praagh, and M. Bedu, Short-Term Peak Power Changes in Adolescents of Similar Anthropometric Characteristics, Medicine & Science in Sports & Exercise, vol.35, issue.8, pp.1436-1440, 2003.

R. L. Mirwald, A. D. G.-baxter-jones, D. A. Bailey, and G. P. Beunen, An assessment of maturity from anthropometric measurements, Medicine & Science in Sports & Exercise, vol.34, issue.4, pp.689-694, 2002.

M. Pääsuke, J. Ereline, and H. Gapeyeva, Knee Extensor Muscle Strength and Vertical Jumping Performance Characteristics in Pre- and Post-Pubertal Boys, Pediatric Exercise Science, vol.13, issue.1, pp.60-69, 2001.

H. T. Peng, Changes in Biomechanical Properties during Drop Jumps of Incremental Height, Journal of Strength and Conditioning Research, vol.25, issue.9, pp.2510-2518, 2011.

O. Prieske, H. Chaabene, C. Puta, D. G. Behm, D. Büsch et al., Effects of Drop Height on Jump Performance in Male and Female Elite Adolescent Handball Players, International Journal of Sports Physiology and Performance, vol.14, issue.5, pp.674-680, 2019.

J. M. Radnor, J. L. Oliver, C. M. Waugh, G. D. Myer, I. S. Moore et al., The Influence of Growth and Maturation on Stretch-Shortening Cycle Function in Youth, Sports Medicine, vol.48, issue.1, pp.57-71, 2017.

R. Ramírez-campillo, C. H. Burgos, C. Henríquez-olguín, D. C. Andrade, C. Martínez et al., Effect of Unilateral, Bilateral, and Combined Plyometric Training on Explosive and Endurance Performance of Young Soccer Players, Journal of Strength and Conditioning Research, vol.29, issue.5, pp.1317-1328, 2015.

T. A. Sayer, R. S. Hinman, K. L. Paterson, K. L. Bennell, K. Fortin et al., Differences in Hip and Knee Landing Moments across Female Pubertal Development, Medicine & Science in Sports & Exercise, vol.51, issue.1, pp.123-131, 2019.

T. J. Suchomel, C. A. Bailey, C. J. Sole, J. L. Grazer, and G. K. Beckham, Using Reactive Strength Index-Modified as an Explosive Performance Measurement Tool in Division I Athletes, Journal of Strength and Conditioning Research, vol.29, issue.4, pp.899-904, 2015.

W. Taube, C. Leukel, M. Schubert, M. Gruber, T. Rantalainen et al., Differential Modulation of Spinal and Corticospinal Excitability During Drop Jumps, Journal of Neurophysiology, vol.99, issue.3, pp.1243-1252, 2008.

A. D. Walshe and G. J. Wilson, The Influence of Musculotendinous Stiffness on Drop Jump Performance, Canadian Journal of Applied Physiology, vol.22, issue.2, pp.117-132, 1997.

C. M. Waugh, T. Korff, and A. J. Blazevich, Developmental differences in dynamic muscle?tendon behaviour: implications for movement efficiency, The Journal of Experimental Biology, vol.220, issue.7, pp.1287-1294, 2017.

M. L. Weber, K. C. Lam, and T. C. Mcleod, The Effectiveness of Injury Prevention Programs for Youth and Adolescent Athletes, International Journal of Athletic Therapy and Training, vol.21, issue.2, pp.25-31, 2016.

?. Mean and . Sd, Table 2: Offspring weight index at 1 and 2 years of age according to maternal pre-delivery body mass index (BMI).

$. , Cognitive Abilities Increase Significantly With Time in Most Prematurely Born Children, 2003.