title: Validity and reliability of a new field test (Carminatti's test) for soccer players compared with laboratory-based measures.
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 VO(2max) (v-VO(2max)). Peak running velocity in Carminatti's test was strongly correlated with v-VO(2max) (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.
authors.affiliation: Physical Effort Laboratory, Department of Physical Education, Federal University of Santa Catarina, Florianópolis, Brazil. jufesi23@yahoo.com.br
authors.forename: Juliano F
authors.initials: JF
authors.lastname: Da Silva
authors.forename: Luiz G A
authors.initials: LG
authors.lastname: Guglielmo
authors.forename: Lorival J
authors.initials: LJ
authors.lastname: Carminatti
authors.forename: Fernando R
authors.initials: FR
authors.lastname: De Oliveira
authors.forename: Naiandra
authors.initials: N
authors.lastname: Dittrich
authors.forename: Carl D
authors.initials: CD
authors.lastname: Paton
mesh_terms: D000293:Adolescent; D054874:Athletic Performance / Q000502:physiology*; D005080:Exercise Test / Q000592:standards*; D005221:Fatigue; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D009048:Motor Skills; D010101:Oxygen Consumption; D010807:Physical Endurance / Q000502:physiology*; D010809:Physical Fitness / Q000502:physiology*; D015203:Reproducibility of Results; D012146:Rest; D012420:Running / Q000502:physiology*; D012916:Soccer / Q000502:physiology*
chemical_list: D019344:Lactic Acid