Test-Retest Reliability of Three Different Countermovement Jumping Tests

Abstract

In studies of physical performance comprising muscle strength and power, a vertical jump is a test method that frequently is used. It is important to have access to accurate measuring tools providing data with high reproducibility. Studies have shown that body composition also may play an important part in physical performance. The purpose of this study was to determine test-retest reliability for 3 different kinds of vertical jumps and to correlate jump height with body composition. Thirty-four normally trained subjects (women n = 17) between 18 and 25 years participated. Test-retest, on 3 kinds of vertical jumps, was performed with a median of 7 days between jumps. Methods used were a countermovement jump (CMJ) on a contact mat, with and without arm swing, and an Abalakow jump (AJ) using measuring tape, with arm swing. Body composition was assessed with the use of bioelectric impedance analysis. The results showed that high intraclass correlation coefficients (ICCs) were observed between testing occasions for all 3 vertical jumps (ICC between 0.48 and 0.88). The AJ in women presented the lowest ICC. Also the correlation between CMJ and AJ was high (rs = 0.88). Moderate-to-high correlations could be shown between body composition and CMJ in women (rs = -0.57-0.76). In conclusion, very high test-retest reliability for CMJ on a contact mat was found. For the AJ using a measuring tape, ICC were overall high, but a moderate nonsignificant ICC were found in women, indicating poor reproducibility. The data from the CMJ and AJ may be compared if approximately 25% of the AJ value is subtracted. In practice, this means that vertical jump tests have high reproducibility and can be used as measures of power development.

Is Self-Administered Rating Scale for Pubertal Development a Predictor of Countermovement Jump in Young Soccer Players?

“…An optical acquisition system (Optojump, Microgate, Udine, Italy) was used to measure the explosive power of the lower extremities of soccer players through a jump test (countermovement jump, CMJ) that showed a high test-retest stability coefficients (range 0.80-0.98) [25]. Players performed a CMJ test according to the protocol described by Bosco et al [26].…”

Concordância e correlação entre três métodos distintos para quantificação da altura do salto vertical

“…A avaliação de atletas ou qualquer pessoa que se submeta a algum tipo de treinamento é essencial para acompanhar seu desempenho 9 . Além disso, essas avaliações também podem ser utilizadas como métodos de seleção de atletas em diferentes modalidades esportivas 1 .…”

“…No caso da AB e do TC, M et al 7 e S et al 9 apresentaram que ambos possuem uma alta reprodutibilidade. Além disso, o trabalho de M et al 11 apresentou altos índices de con ança e validade para os métodos AB e TC.…”

“…Especi camente para o esporte, a altura do salto vertical tem sido utilizada como uma medida para estimar a força e potência dos membros inferiores [1][2][3][4][5][6][7] . Dado o predomínio da medida do salto vertical na área do treinamento de força e condicionamento físico, se faz necessário que metodologias utilizadas para esta aferição sejam con áveis 1,[8][9] .…”

“…Dentre estes métodos, podemos listar o tapete de contato 1,3,[5][6][7]9 , videogrametria bidiomensional 2 , e cinta de Abalakov 7,9,11 . O tapete de contato é um instrumento que calcula a altura do salto a partir da quanti cação do tempo de voo.…”