Match internal load in youth elite soccer players is period, playing position and intermittent running capacity dependent
Abstract Aims: The aims of this study were: i) to verify whether player internal load (PIL) monitored via heart rate (HR) varies with game-time and playing position; ii) whether intermittent running capacity (IRC) is related to the maintenance of within-match PIL in elite youth (U-15) soccer playe...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universidade Estadual Paulista (UNESP)
2018-11-01
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| Series: | Motriz: Revista de Educacao Fisica |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-65742018000400706&lng=en&tlng=en |
| _version_ | 1818466044695543808 |
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| author | Cristiano D. da Silva Antônio José Natali Christopher Carling Jorge R. Perrout de Lima Mauricio G. Bara Filho Emerson S. Garcia João Carlos B. Marins |
| author_facet | Cristiano D. da Silva Antônio José Natali Christopher Carling Jorge R. Perrout de Lima Mauricio G. Bara Filho Emerson S. Garcia João Carlos B. Marins |
| author_sort | Cristiano D. da Silva |
| collection | DOAJ |
| description | Abstract Aims: The aims of this study were: i) to verify whether player internal load (PIL) monitored via heart rate (HR) varies with game-time and playing position; ii) whether intermittent running capacity (IRC) is related to the maintenance of within-match PIL in elite youth (U-15) soccer players. Method: Twenty-one elite soccer players (14±0.5 yrs, 172±7 cm, 63±6 kg) had their heart rate monitored (beats/min) in five matches and were tested twice for IRC (Yo-YoIR2, distance [m]) over a seven-week competitive season. Percentage of maximal heart rate (%HRmax) and time spent (TS%) in five zones (Z1[<70%]; Z2[71-85%]; Z3[86-90%]; Z4[91-95%] and Z5[>96%]) were our PIL indexes. Data from three complete games in the same position of each player were analyzed and matches halves, time intervals (T1 to T6), and playing positions (fullbacks, central defenders and forwards [N=5 each], midfielders [N=6]) were compared, and the relationship between IRC and within-match PIL was determined. Results: PIL was higher in 1st (86±3%) than in the 2nd half (84±4%; p<.001). The 2nd half had more TS% in Z1 and Z2 (p<.05). PIL in T4 was the lowest (p<.01), and in T6, it was lower than T1 and T2 (p<.01). Fullbacks and midfielders showed higher PIL and higher TS% in Z4 (p<.05) than the other positional roles. The average IRC correlated with PIL in T6 (r=.56, p<.01) only. Conclusion: In conclusion, the internal load in elite youth (U-15) soccer players varies with game-time and playing position; and their IRC is related to the maintenance of within-match PIL. |
| first_indexed | 2024-04-13T20:53:14Z |
| format | Article |
| id | doaj.art-10ac8dbf169e4d37b71615bfc9c02e33 |
| institution | Directory Open Access Journal |
| issn | 1980-6574 |
| language | English |
| last_indexed | 2024-04-13T20:53:14Z |
| publishDate | 2018-11-01 |
| publisher | Universidade Estadual Paulista (UNESP) |
| record_format | Article |
| series | Motriz: Revista de Educacao Fisica |
| spelling | doaj.art-10ac8dbf169e4d37b71615bfc9c02e332022-12-22T02:30:24ZengUniversidade Estadual Paulista (UNESP)Motriz: Revista de Educacao Fisica1980-65742018-11-0124410.1590/s1980-6574201800040005S1980-65742018000400706Match internal load in youth elite soccer players is period, playing position and intermittent running capacity dependentCristiano D. da SilvaAntônio José NataliChristopher CarlingJorge R. Perrout de LimaMauricio G. Bara FilhoEmerson S. GarciaJoão Carlos B. MarinsAbstract Aims: The aims of this study were: i) to verify whether player internal load (PIL) monitored via heart rate (HR) varies with game-time and playing position; ii) whether intermittent running capacity (IRC) is related to the maintenance of within-match PIL in elite youth (U-15) soccer players. Method: Twenty-one elite soccer players (14±0.5 yrs, 172±7 cm, 63±6 kg) had their heart rate monitored (beats/min) in five matches and were tested twice for IRC (Yo-YoIR2, distance [m]) over a seven-week competitive season. Percentage of maximal heart rate (%HRmax) and time spent (TS%) in five zones (Z1[<70%]; Z2[71-85%]; Z3[86-90%]; Z4[91-95%] and Z5[>96%]) were our PIL indexes. Data from three complete games in the same position of each player were analyzed and matches halves, time intervals (T1 to T6), and playing positions (fullbacks, central defenders and forwards [N=5 each], midfielders [N=6]) were compared, and the relationship between IRC and within-match PIL was determined. Results: PIL was higher in 1st (86±3%) than in the 2nd half (84±4%; p<.001). The 2nd half had more TS% in Z1 and Z2 (p<.05). PIL in T4 was the lowest (p<.01), and in T6, it was lower than T1 and T2 (p<.01). Fullbacks and midfielders showed higher PIL and higher TS% in Z4 (p<.05) than the other positional roles. The average IRC correlated with PIL in T6 (r=.56, p<.01) only. Conclusion: In conclusion, the internal load in elite youth (U-15) soccer players varies with game-time and playing position; and their IRC is related to the maintenance of within-match PIL.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-65742018000400706&lng=en&tlng=enmatch demandsoccerexercise intensityfatiguepositional role |
| spellingShingle | Cristiano D. da Silva Antônio José Natali Christopher Carling Jorge R. Perrout de Lima Mauricio G. Bara Filho Emerson S. Garcia João Carlos B. Marins Match internal load in youth elite soccer players is period, playing position and intermittent running capacity dependent Motriz: Revista de Educacao Fisica match demand soccer exercise intensity fatigue positional role |
| title | Match internal load in youth elite soccer players is period, playing position and intermittent running capacity dependent |
| title_full | Match internal load in youth elite soccer players is period, playing position and intermittent running capacity dependent |
| title_fullStr | Match internal load in youth elite soccer players is period, playing position and intermittent running capacity dependent |
| title_full_unstemmed | Match internal load in youth elite soccer players is period, playing position and intermittent running capacity dependent |
| title_short | Match internal load in youth elite soccer players is period, playing position and intermittent running capacity dependent |
| title_sort | match internal load in youth elite soccer players is period playing position and intermittent running capacity dependent |
| topic | match demand soccer exercise intensity fatigue positional role |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-65742018000400706&lng=en&tlng=en |
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