Developmental change in motor competence : a latent growth curve analysis

Background: The development of childhood motor competence demonstrates a high degree of inter-individual variation. Some children's competence levels increase whilst others' competence levels remain unchanged or even decrease over time. However, few studies have examined this developmental change in motor competence across childhood and little is known on influencing factors. Aim: Using latent growth curve modeling (LGCM), the present longitudinal study aimed to investigate children's change in motor competence across a 2-year timespan and to examine the potential influence of baseline weight status and physical fitness on their trajectory of change in motor competence. Methods: 558 children (52.5% boys) aged between 6 and 9 years participated in this study. Baseline measurements included weight status, motor competence (i.e., Korperkoordinationstest fur Kinder; KTK) and physical fitness (i.e., sit and reach, standing long jump and the 20 m shuttle run test). Motor competence assessment took place three times across a 2-year timespan. LGCM was conducted to examine change in motor competence over time. Results: The analyses showed a positive linear change in motor competence across 2 years (beta = 28.48, p < 0.001) with significant variability in children's individual trajectories (p < 0.001). Girls made less progress than boys (beta = -2.12, p = 0.01). Children who were older at baseline demonstrated less change in motor competence (beta = -0.33, p < 0.001). Weight status at baseline was negatively associated with change in motor competence over time (beta = -1.418, p = 0.002). None of the physical fitness components, measured at baseline, were significantly associated with change in motor competence over time. Conclusion and Implications: This longitudinal study reveals that weight status significantly influences children's motor competence trajectories whilst physical fitness demonstrated no significant influence on motor competence trajectories. Future studies should further explore children's differential trajectories over time and potential factors influencing that change

Investigating the construct of motor competence in middle childhood using the BOT‐2 Short Form : an item response theory perspective

Purpose: Motor assessments generally produce a single motor competence score based on the general motor ability hypothesis, which states that motor competence is a one-dimensional trait underlying a wide range of motor skills. Yet, it is unclear whether the general motor ability hypothesis holds true in middle childhood, which is marked by an increased participation in sports and other types of physical activity. Therefore, the aim of the study was to evaluate the structure of motor competence in middle childhood using a test battery with a large item set. Method: A cross-sectional design was used to collect motor competence data of 2538 children aged 6-11 years. Participants completed the Bruininks-Oseretsky Test of Motor Proficiency—2nd Edition Short Form (BOT-2 SF), which consists of 14 skill items and covers different motor domains. In accordance with the BOT-2 SF manual, point scores were computed for each item. Polytomous Rasch analyses (ie, general partial credit model) were carried out to investigate the construct of motor competence. Results: Rasch analyses revealed different items with unordered threshold parameters, due to ceiling effects. However, after empirically rescaling the category width for each item, follow-up analyses revealed a one-dimensional structure with 12 items. Conclusion: The study provides some evidence of a one-dimensional construct (ie, motor competence) underlying motor assessment in middle childhood. Continued efforts should be made to ensure that valid composite scores are used in motor assessment and to better understand the development of motor competence across childhood and into adolescence and adulthood

Construct validity of the English version of the perceived motor competence questionnaire in childhood (PMC-C)

Objectives: Perceived motor competence is an important part of the physical self-concept. Whilst there are various questionnaires measuring physical self-concept and its sub-components in children and adolescents, few have focused on assessing self-perception of motor skills. To this end, the Perceived Motor Competence Questionnaire in Childhood (PMC-C; Dreiskaemper, Utesch & Tietjens, 2018) was developed to measure children’s perception of different locomotor and object control skills; the instrument has been validated in German. The present study aimed to investigate the construct validity of the English version of the questionnaire.Methods: A total of 324 children aged 8-12 years (M = 10.17, SD = 1.16) from Scotland (UK) took part in the study and completed the 24-item questionnaire, which uses a 4-point Likert scale. The PMC-C covers 4 locomotor skills (hop, jump run, and skip) and 4 object control skills (bounce, catch, kick, and throw) with 3 items per skill. Internal consistency was examined using polychoric alphas or omegas. The latent structure of the original PMC-C was tested using confirmatory factor analysis (CFA).Results: The results showed good internal consistency for locomotor skills (.78 – .88) and object control skills (.73 – .89), and ordered thresholds for all items. Furthermore, the CFA revealed a good model fit for the assumed structure of the original PMC-C (χ2(243) = 501.1, p < .001, TLI = .985, CFI = .987, RMSEA = .061).Conclusion: The study provides evidence for the construct validity of the English version of the PMC-C. This questionnaire is thus considered an appropriate tool to assess children’s self-perception of motor skills

Cross-cultural comparison of motor competence in children from Australia and Belgium

Motor competence in childhood is an important determinant of physical activity and physical fitness in later life. However, childhood competence levels in many countries are lower than desired. Due to the many different motor skill instruments in use, children’s motor competence across countries is rarely compared. The purpose of this study was to evaluate the motor competence of children from Australia and Belgium using the Körperkoordinationstest für Kinder (KTK). The sample consisted of 244 (43.4% boys) Belgian children and 252 (50.0% boys) Australian children, aged 6–8 years. A MANCOVA for the motor scores showed a significant country effect. Belgian children scored higher on jumping sideways, moving sideways and hopping for height but not for balancing backwards. Moreover, a Chi squared test revealed significant differences between the Belgian and Australian score distribution with 21.3% Belgian and 39.3% Australian children scoring “below average.” The very low levels reported by Australian children may be the result of cultural differences in physical activity contexts such as physical education and active transport. When compared to normed scores, both samples scored significantly worse than children 40 years ago. The decline in children’s motor competence is a global issue, largely influenced by increasing sedentary behavior and a decline in physical activity

Motor development research : I. The lessons of history revisited (the 18th to the 20th century)

In 1989, Clark and Whitall asked the question “What is motor development”. They were referring to the study of motor development as an academic research enterprise and answered their question primarily by describing four relatively distinct time periods characterized by changes in focus, theories or concepts and methodology. Their last period was named the process-oriented period (1970-1989). In hindsight, it seems clear that their last period could be divided into two separate historical time periods: the information-processing period (1970-1982) and the dynamical systems period (1982-2000). In the present paper, we briefly revisit the first three periods defined by Clark and Whitall, and expand and elaborate on the two periods from 1970 to the turn of the century. Each period is delineated by key papers and the major changes in focus, theories or concepts and methodology. Major findings about motor development are also described from some papers as a means of showing the progression of knowledge

Actual and perceived motor competence levels of Belgian and United States preschool children

Purpose: The present study examined the motor competence of preschool children from Belgium and the United States (US), and the influence of perceived motor competence on actual motor competence. A secondary objective was to compare the levels of motor competence of Belgian and US children using the US norms of the Test of Gross Motor Development, Second Edition (TGMD-2). Methods: All participants (N = 326; ages 4-5) completed the TGMD-2 and the Pictorial Scale of Perceived Movement Skill Competence for Young Children. Results: Belgian children performed significantly higher on actual object control and locomotor skills than US children. However, both Belgian and US children scored significantly worse on the TGMD-2 when compared to the US norm group from 1997-1998. Furthermore, perceived motor competence was significantly related to actual object control skills but not locomotor skills. Conclusion: The present study showed cross-cultural differences in actual motor competence in young children. The findings also indicate a secular downward trend in childhood competence levels, possibly due to a decrease in physical activity and increase in sedentary behavior. Future research should consider conducting an in-depth exploration of physical activity contexts such as physical education to better understand cross-cultural differences in motor competence

Convergent and divergent validity between the KTK and MOT 4-6 motor tests in early childhood

The aim of this study was to investigate the convergent and divergent validity between the Body Coordination Test for Children (KTK) and the Motor Proficiency Test for 4- to 6-Year-Old Children (MOT 4-6). A total of 638 children (5-6 yr old) took part in the study. The results showed a moderately positive association between the total scores of both tests (r = .63). Moreover, the KTK total score correlated more highly with the MOT 4-6 gross motor score than with the MOT 4-6 fine motor score (r = .62 vs. .32). Levels of agreement were moderate when identifying children with moderate or severe motor problems and low at best when detecting children with higher motor-competence levels. This study provides evidence of convergent and divergent validity between the KTK and MOT 4-6. However, given the moderate to low levels of agreement, either measurement may lead to possible categorization errors. Children's motor competence should therefore not be judged based on the result of a single test

Assessing fundamental motor skills in Belgian children aged 3-8 years highlights differences to US reference sample

AIM: This study aimed to understand the fundamental motor skills (FMS) of Belgian children using the process-oriented Test of Gross Motor Development, Second Edition (TGMD-2) and to investigate the suitability of using the United States (USA) test norms in Belgium. METHODS: FMS were assessed using the TGMD-2. Gender, age and motor performance were examined in 1614 Belgian children aged 3-8 years (52.1% boys) and compared with the US reference sample. RESULTS: More proficient FMS performance was found with increasing age, from 3 to 6 years for locomotor skills and 3 to 7 years for object control skills. Gender differences were observed in object control skills, with boys performing better than girls. In general, Belgian children had lower levels of motor competence than the US reference sample, specifically for object control skills. The score distribution of the Belgian sample was skewed, with 37.4% scoring below average and only 6.9% scoring above average. CONCLUSION: This study supported the usefulness of the TGMD-2 as a process-oriented instrument to measure gross motor development in early childhood in Belgium. However, it also demonstrated that caution is warranted when using the US reference norms