High-school adolescents’ motivation to rugby participation and selection criteria for inclusion in school rugby teams: coaches’ perspective (the SCRuM project)

Objective Despite increasing rugby popularity among schoolboys’ worldwide, specific factors influencing their motivation to participate in rugby remain unclear. Therefore, this study was conducted in two parts with a dual purpose of exploring perceptions of rugby coaches on (i) factors motivating schoolboys to engage in competitive rugby, and (ii) criteria for selecting schoolboy rugby players for possible inclusion in school rugby teams. Results A qualitative study targeting Zimbabwean high school-based rugby coaches purposively-recruited during the 2017 Dairiboard Zimbabwe Rugby School Festival was conducted. Using the conventional approach to content analysis, the 22 recruited male coaches (median age = 45.5 years) felt that playing rugby is a choice largely influenced by either intrinsic or extrinsic motives for schoolboys. Additionally, coaches considered players’ characteristics (performance during training, attitude, physical qualities and skills) and match-related factors when selecting schoolboys for possible inclusion in school rugby teams. To effectively promote competitive rugby participation among schoolboys and promote sustainable and effective talent identification programmes in Zimbabwe, more recognition should be paid to factors motivating schoolboys to participate in rugby and also on the factors coaches consider when assembling school rugby teams which indirectly informs on what coaches think should be trained among schoolboy rugby players. Electronic supplementary material The online version of this article (10.1186/s13104-019-4138-y) contains supplementary material, which is available to authorized users.

However, little is known about factors influencing motivation to participate in competitive rugby from the coaches' perspective.
Several studies documented general reasons for sports participation for children, adolescents and adults ranging from weight management, social interaction to enjoyment [12][13][14][15][16][17][18]. Innumerable reasons cited illustrate complexity of the construct of motivation [18,19]. One motivational theory, the self-determination theory (SDT) widely used to explain participatory behaviour [19,20], is conceptually anchored on the belief that motivation is either intrinsic or extrinsic-oriented and driven by psychological needs for competence, autonomy and relatedness [21,22].
Important to understand also is whether players' attitudinal attributes could be a selection strategy coaches use when assembling a school rugby team. Studies conducted to investigate rugby coaches' selection criteria of schoolboys are scarce. Previous studies showed that team selection is based on players' experience, and certain attributes [23][24][25]. However, this evidence is mainly from quantitative studies. Therefore, this study was conducted to explore perceptions of rugby coaches on reasons they believe motivate schoolboys to participate in rugby and strategies used for selection of school teams. This study is useful in Zimbabwe where schoolboy rugby is considered an "elite" sport popular in private and top government schools, and where inclusivity efforts to develop the sport in disadvantaged schools are underway. Practically, this study may inform development of strategies to increase participation rates among schoolboys. Moreover, results on selection criteria may inform coaches on qualities important for rugby from the coaches' perspective.

Research design, setting and participants
A qualitative study was employed for this study. This study was part of a broader project called the School Clinical Rugby Measure (SCRuM) partly described elsewhere [11]. Data collection was conducted at a school hosting the 2017 Dairiboard Zimbabwe Schools Rugby Festival (DZSRF). The festival was a 7-day long tournament featuring 150 high-schools. Coaches were selected with an apriori intention of maximum heterogeneity within the sample. This entailed purposively recruiting coaches from three high-school rugby leagues in Zimbabwe, namely SESRL, CESRL and Interscholastic High Schools Rugby League (IHSRL, "amateur league") [11]. Full-time rugby coaches with at least 5 years' coaching experience were eligible.

Procedure
Ethical approval was granted by the University of Cape Town Human Research Ethics Committee (HREC ref: 016/2016). Coaches were approached by the first author, and interview appointments set with willing coaches. Written informed consents were provided. Subsequently, a trained research assistant conducted semistructured, one-on-one interviews in a quiet classroom using an English interview guide [26]. All interviews were audio-recorded and lasted between 15 and 40 min. The recordings were then transcribed verbatim. Participant checking of the transcripts was conducted with a convenience sample of participants (n = 12) checking accuracy of the transcripts.

Data analysis
A conventional inductive approach to content analysis [27] following steps of "decontextualisation", "recontextualisation" and "categorisation" as described by Bengtsson [28] was used for theme generation. This entailed reading the transcripts, extracting and condensing meaning units, data coding, formulating categories and themes. This approach allowed themes to flow from the data [27] and was chosen because of limited literature explaining schoolboy participation in rugby and coaches' selection criteria. Data analysis was manually completed by the first author and subsequently triangulated by an independent person.

Sample characteristics
The coaches' demographic and work-related data are presented elsewhere [26]. Briefly, 22 coaches were interviewed. The majority had ≥ 10 years coaching experience and were mainly coaching senior schoolboys from private schools playing in the SESRL.

Motivation for the participatory behaviour
Coaches' perceptions on factors motivating schoolboys' participation in rugby yielded one over-arching theme ("It is a choice to play rugby"). Schoolboys are motivated by intrinsic (personal preference, enjoyment, and nature of the sport) or extrinsic factors (influence from significant others, professional ambitions, emulation and monetary rewards) (Additional file 1). External influences were also cited. "There are also other influences […] from parents who used to play the sport when they were young, or used to enjoy watching the sport…. " (Participant AW01).

Selection criteria
Analysis of the factors coaches consider for selection of schoolboys into teams yielded two overarching themes (Additional file 2). Theme 2: "It's about the match" Some coaches felt that team selection is circumstantial, factoring in the impending competitive match "I try to go for players whom I know will give me a win, a balanced team […]. So the team must be bal-anced…. " (Participant ER02).

Discussion
This study explored factors coaches believe motivate schoolboys' participation in competitive rugby and strategies to select them for school rugby teams. Unlike most studies [15,18,19], this study uniquely sought coaches' perceptions. Coaches represent an important stakeholder in continued rugby participation by schoolboys. Additionally, by virtue of their experience and multifaceted roles as recruiters, trainers, and team selectors, coaches have keen insight into schoolboys' motivation. They offer unique perspectives which may guide the development and implementation of strategies to improve schoolboys' participation rates.
The main finding of this study shows that coaches have different reasons explaining participation in rugby. Motives range from personal preference, enjoyment, passion, nature of the sport, professional ambitions, influence from parents and friends. This diversity highlights complexity of the construct of motivation [29]. Our results also seem to imply that schoolboys' participation is an individualistic decision underpinned by intrinsic or extrinsic factors and aimed at realising certain goals. This is the foundational basis of the SDT [18,21,22,30]. The theory assumes that human behaviour is driven by psychological needs of "competence", "autonomy" and "relatedness" [21]. Our results support the conceptual principles underpinning SDT. For example, the need for autonomy is evidenced by the independent decision making to engage in competitive rugby. Additionally, the need for relatedness as described in literature [22] helps us understand the influence of significant others in motivating schoolboys.
Although there are no studies documenting coaches' perceptions on factors motivating schoolboys to participate in rugby, our results are consistent with studies investigating general sports participation among children, adolescents and adults [12,14,15,17,18]. A study conducted using college students' found that enjoyment and the need for challenges were predominant motivational factors for sport participation [12]. A narrative review of studies involving children, adolescents and adults corroborated the findings [15]. However, our results also show that there are unique motives for rugby participation among schoolboys facilitated by contextual, environmental and rugbyrelated factors. Sports are compulsory in Zimbabwean schools and schoolchildren partake in rugby by choice regardless whether they are selected or not for competitive matches. In such contexts, participation is driven more by passion and love for the game despite the physical challenges inherent in the sport. Additionally, issues around masculinity and physicality were also expressed as motivating factors. This is linked to the nature of sport which requires a show of masculine ego and physical attributes commensurate with rugby demands [5][6][7][8]. Extrinsic motivational factors such as professional ambitions, monetary rewards were also identified. Similarly, they have been reported elsewhere [13,31] and reflect contextual and socio-cultural perceptions people have towards the sport.
The study also explored coaches' criteria when selecting schoolboys for inclusion in school rugby teams. Coaches largely select based on training performances, players' attitudes, physical fitness, physical qualities, and possession of basic rugby skills. This variability indicates different coaching ideologies and guiding principles for team selection. These findings are supported by previous studies and reflect the nature of the sport which requires technical competence and well-developed physical attributes [23][24][25]. To achieve that expertise, training is required and this explains value placed on training performances by coaches; a finding shared by Baker et al. [32].

Limitations
• This study did not interview schoolboy players.
Future studies may want to triangulate these findings using them. • Data analysis was not conducted iteratively based on the saturation concept. Therefore, it is not clear if saturation was reached with 22 participants included in the sample.

Additional files
Additional file 1. Emergent codes, categories and themes from participatory behaviour data from interviewing high school adolescent rugby coaches.
Additional file 2. Emergent codes, sub-categories, categories and themes from the interview data on coaches' selection criteria.