Abstract
During puberty, the growth of the bones is faster than that of the muscles, which may result in muscular tightness. Muscular tightness and asymmetry have been associated with an increase in injury incidence. The assessment of a joint range of motion (ROM) could help to identify athletes classified as high injury risk. The objectives of the present study were to describe the lower-extremity flexibility profile (LEFP) of youth competitive inline hockey players using the ROM-SPORT battery (I) and to identify muscular tightness and asymmetry (II). Seventy-four young players were examined for maximum passive ankle, knee, and hip ROMs. Muscle asymmetry or tightness was classified according to cutoff scores previously described. The LEFP of the 74 players was 10.8° for hip extension, 26° for hip adduction, 33.6° for ankle dorsiflexion, 38.6° for ankle dorsiflexion with knee flexed, 36.7° for hip abduction, 46° for hip internal rotation, 60.6° for hip external rotation, 65.1° for hip abduction with the hip flexed, 66.3° for hip flexion with the knee extended, 119.7° for knee flexion, and 133.7° for hip flexion. The individual analysis of the flexibility values identified tightness in all players for one or more movement, except for hip abduction. A low prevalence of asymmetries was observed (range: 5.4% to 17.6% of players) depending on the ROM.
Highlights
Inline hockey (IH) has become an increasingly popular sport in Spain during the last decade, with the senior women’s and men’s national IH teams placed in the top ten in the IH World and EuropeanChampionships [1]
Participants were selected through a convenience sample from the Technification Plan determined by the Real Federación Española de Patinaje in the 2016/17competitive season, in which the best IH
Ninety competitive IH players were designated to participate in this study
Summary
Inline hockey (IH) has become an increasingly popular sport in Spain during the last decade, with the senior women’s and men’s national IH teams placed in the top ten in the IH World and EuropeanChampionships [1]. Inline hockey (IH) has become an increasingly popular sport in Spain during the last decade, with the senior women’s and men’s national IH teams placed in the top ten in the IH World and European. IH is a dynamic team-based sport characterized by constant changes in speed and direction over different distances. To achieve high levels of performance, IH players must have high levels of skating and stick handling skills such as passing, receiving, driving, hitting, or shooting [2,3,4,5]. Muscle flexibility is one of the key components of athletic performance together with strength, endurance, speed, and coordination [6,9,10].
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