Validity and reliability of a new field test (Carminatti's test) for soccer players compared with laboratory-based measures |
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| Authors: | Juliano F Da Silva Luiz GA Guglielmo Lorival J Carminatti Fernando R De Oliveira Naiandra Dittrich Carl D Paton |
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| Institution: | 1. Physical Effort Laboratory, Department of Physical Education , Federal University of Santa Catarina , Florianópolis, Brazil jufesi23@yahoo.com.br;3. Physical Effort Laboratory, Department of Physical Education , Federal University of Santa Catarina , Florianópolis, Brazil;4. Center for Studies of Human Movement , Federal University of Lavras , Lavras, Brazil;5. Health and Sport , EasternInstitute of Technology (EIT) , Napier, New Zealand |
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| Abstract: | Abstract The aim of this study was to assess the validity (Study 1) and reliability (Study 2) of a novel intermittent running test (Carminatti's test) for physiological assessment of soccer players. In Study 1, 28 players performed Carminatti's test, a repeated sprint ability test, and an intermittent treadmill test. In Study 2, 24 players performed Carminatti's test twice within 72 h to determine test–retest reliability. Carminatti's test required the participants to complete repeated bouts of 5 × 12 s shuttle running at progressively faster speeds until volitional exhaustion. The 12 s bouts were separated by 6 s recovery periods, making each stage 90 s in duration. The initial running distance was set at 15 m and was increased by 1 m at each stage (90 s). The repeated sprint ability test required the participants to perform 7 × 34.2 m maximal effort sprints separated by 25 s recovery. During the intermittent treadmill test, the initial velocity of 9.0 km · h?1 was increased by 1.2 km · h?1 every 3 min until volitional exhaustion. No significant difference (P > 0.05) was observed between Carminatti's test peak running velocity and speed at VO2max (v-VO2max). Peak running velocity in Carminatti's test was strongly correlated with v-VO2max (r = 0.74, P < 0.01), and highly associated with velocity at the onset of blood lactate accumulation (r = 0.63, P < 0.01). Mean sprint time was strongly associated with peak running velocity in Carminatti's test (r = ?0.71, P < 0.01). The intraclass correlation was 0.94 with a coefficient of variation of 1.4%. In conclusion, Carminatti's test appears to be avalid and reliable measure of physical fitness and of the ability to perform intermittent high-intensity exercise in soccer players. |
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| Keywords: | Assessment aerobic power fitness performance repeated sprint ability |
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