Aim: Literature about vitamin D in sports performance is contradictory and not exhaustive. The purpose of this study is to relate blood level of vitamin D and physical performance during official football matches. Methods: In seven elite soccer players (age 27.1 ± 3.4 years, height 180.2 ± 3.1 cm, weight 72.6 ± 4.4 kg) low level of vitamin D were found during routine blood sample analysis in March: nutrition and supplement strategy has therefore begun. In order to verify the effectiveness of this intervention were perform blood samples in May and we analyzed the parameters for physical performance retrospectively in February and in April. Vitamin D level in March and in May, parameters related to physical performance in February and April were compared (t-test for paired data). Correlation between differences (D) in vitamin D level with difference in physical performance parameters were also perform. Results: Vitamin D level improve from 22.7 ± 3.8 to 29.39 ± 4.22 ng/mL (D = 6.3 ng/mL; p\0.001). During February soccer players attend to 7 matches and 15 training session, in April 5 matches and 18 training session. During official matches: total distance improves from 10924.3 ± 1017.1 to 11385.0 ± 1056.0 m (D = 460.7 m; p\0.05), distance speed [25 km/h improves from 303.7 ± 111.3 to 356.3 ± 132.6 m (D = 52.5 m; p\0.05), maximum speed improves from 32.5 ± 1.4 to 33.5 ± 0.8 km/h (D = 1,5 km/h; p\0.05), number of sprint[25 km/h improves from 24.5 ± 9.3 to 29.4 ± 7.2 (D = 4.9; p\0.05). Correlation shown a relationship between D vitamin D and D number of sprint[25 km/h (r = 0.75). No differences in training session data. Conclusion: It is possible to associate low level of vitamin D with a poor physical performance in football. However, should not to be consider as an increase in vitamin D is associate with an improvement of performance, rather as an additional attention to keep blood chemistry parameters in the normal range throughout regular season.
Low levels of vitamin D affect physical performance in elite soccer players / Mascherini G; Petri C; Suarez-Arrones L; Pengue L; Galanti G. - In: SPORT SCIENCES FOR HEALTH. - ISSN 1824-7490. - ELETTRONICO. - 13:(2017), pp. 102-102. [10.1007/s11332-017-0384-3]
Low levels of vitamin D affect physical performance in elite soccer players
Mascherini G;Petri C;Pengue L;Galanti G
2017
Abstract
Aim: Literature about vitamin D in sports performance is contradictory and not exhaustive. The purpose of this study is to relate blood level of vitamin D and physical performance during official football matches. Methods: In seven elite soccer players (age 27.1 ± 3.4 years, height 180.2 ± 3.1 cm, weight 72.6 ± 4.4 kg) low level of vitamin D were found during routine blood sample analysis in March: nutrition and supplement strategy has therefore begun. In order to verify the effectiveness of this intervention were perform blood samples in May and we analyzed the parameters for physical performance retrospectively in February and in April. Vitamin D level in March and in May, parameters related to physical performance in February and April were compared (t-test for paired data). Correlation between differences (D) in vitamin D level with difference in physical performance parameters were also perform. Results: Vitamin D level improve from 22.7 ± 3.8 to 29.39 ± 4.22 ng/mL (D = 6.3 ng/mL; p\0.001). During February soccer players attend to 7 matches and 15 training session, in April 5 matches and 18 training session. During official matches: total distance improves from 10924.3 ± 1017.1 to 11385.0 ± 1056.0 m (D = 460.7 m; p\0.05), distance speed [25 km/h improves from 303.7 ± 111.3 to 356.3 ± 132.6 m (D = 52.5 m; p\0.05), maximum speed improves from 32.5 ± 1.4 to 33.5 ± 0.8 km/h (D = 1,5 km/h; p\0.05), number of sprint[25 km/h improves from 24.5 ± 9.3 to 29.4 ± 7.2 (D = 4.9; p\0.05). Correlation shown a relationship between D vitamin D and D number of sprint[25 km/h (r = 0.75). No differences in training session data. Conclusion: It is possible to associate low level of vitamin D with a poor physical performance in football. However, should not to be consider as an increase in vitamin D is associate with an improvement of performance, rather as an additional attention to keep blood chemistry parameters in the normal range throughout regular season.
I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
