Gert-Jan Pepping

Background and Objectives: Intergenerational farming activities, including care of plants, animals, and surrounding environments, enable connection with nature and participating generations. This systematic review aimed to determine health and wellbeing impacts of intergenerational farming activities for older adults, children/youth and community; key factors contributing to establishment, engagement in, and sustainability of intergenerational farming programs: and whether they support ‘ageing-in-place'.Research Design and Methods: A systematic search was undertaken of five databases. Studies could be qualitative and/or quantitative, involve an intergenerational activity/program inclusive of older adults and children/youth, report health and wellbeing outcomes and be written in English. Adopting a social ecological lens, qualitative data were synthesised and reported thematically. Quantitative data were descriptively presented. Results: Twenty-two studies were included. Seven themes relating to health and wellbeing impacts were identified: physical health benefits, psychological benefits, positive relationships and interpersonal skills, community and belonging, purposeful work or learning, environmental engagement, and connection to culture. Factors impacting establishment, engagement in, and sustainability of activities included planning and implementation considerations, partnerships, agency and anticipated future opportunities/benefits. No studies reported if, or how, intergenerational farming activities support ‘ageing-in-place’. Discussion and Implications: Intergenerational farming activities appear to offer holistic health and wellbeing benefits, reflecting Indigenous approaches to healing through connections to land, culture, and community. Establishing sustainable programs requires planning, training and partnerships. More robust research utilising objective measures is required to support findings. Further investigation is needed. Furthermore, studies investigating how intergenerational farming supports ‘ageing-in-place’ is recommended.

Objective: To understand how competence, self-efficacy, enjoyment and motivation relates to physical activity behavior during transition from school to university. Participants: Health science students (n = 558) studying first year biology at an Australian university. Methods: Cross-sectional correlational survey design using five self-report questionnaires to establish relationships between a physical activity index and motivational variables. Results: Self-reported physical activity index scores of satisfactory or above were achieved by 80% of students with scores significantly higher for males than females. Enjoyment, self-efficacy and competence were predictive of physical activity index scores across genders. Conclusions: The physical activity index is a useful measure of activity dimensions across a variety of physical activities. Health science students need to underpin health messages with personal practice in modeling a healthy lifestyle. Universities have a special responsibility for building and supporting physical activity for all students, but especially for future health professionals.

Over a large body of literature focused on perceptual-motor coordination for action-based affordance tasks, little regard has been given for measurement reliability. The purpose of this paper was to outline this issue and provide an example reliability study for a measure of an individual’s ability to perceive action opportunities for leaping. Ten participants completed three testing sessions, each consisting of 24 trials of the task. Reaction times and accuracy of perceptual responses were calculated. Analysis of variance was used to test for systematic mean changes. Intraclass correlation coefficients (ICCs) and coefficients of variation (CV) were used to quantify intersession agreement and within-subject variability. With the removal of six trials for familiarization, acceptable agreement (ICC= 0.930) and within-subject variability (CV= 9.5%) were established, using six further testing trials. Overall, this paper provides the rationale and simple methods for addressing measurement reliability in perceptual-motor coordination research.

The visual exploratory actions (i.e. scanning head movements) used by football players to perceive their surrounding environment have recently gained interest. While this has resulted in important findings relating to visual exploration during natural match-play, often the study designs lacked the experimental control of laboratory-based experimental settings. We aimed to investigate whether visual exploratory action is associated with passing performance for high-level U13 and U23 players in a controlled skill assessment setting. Fourteen U13 and 13 U23 football players from a Bundesliga club completed a standardised 32-trial sequence in the Footbonaut. Exploratory head movements were recorded with a head-worn inertial sensor, from which the count, frequency and excursion of head movements were extracted before and during ball possession. Ball reception and disposal were coded for each trial, and performance was operationalised as the time taken to complete each trial. Across all players, visual exploratory action was associated with passing performance. The variables that best explained faster performance were 1) a higher number of head turns before receiving the ball, 2) a lower number of head turns when in possession of the ball, and 3) being an U23 player. However, different combinations of variables explained performance for U13 and U23 players. The findings demonstrate the value of scanning before receiving the ball to prospectively control passing actions in the Footbonaut. Future research should investigate the shared and contrasting characteristics of scanning actions, as they are observed by players in skill assessment tasks such as the Footbonaut, during training and during match-play.

Perceptual‐motor coordination relies on the accurate coupling of the perceptual and movement systems. However, individuals must also be able to recalibrate to perturbations to perceptual and movement capabilities. We examined the effects of fatigue and load carriage on perceptual‐motor coordination for a maximal leaping task. 23 participants completed an incremental fatigue protocol (light to fatiguing intensity stages) on two separate occasions (loaded/unloaded). At baseline and the end of every stage of the protocol, participants made perceptual judgments for the affordance of leaping. The accuracy of responses and reaction times were calculated and mean differences were assessed across exercise intensity and load carriage conditions. No interaction of exercise intensity and load carriage was detected, or main effect of load carriage. A main, quadratic effect of exercise intensity was detected on reaction times, with times decreasing through the moderate stage and increasing through post‐fatigue. No effect of exercise/fatigue was detected on perceptual accuracy. The results indicate that exercise at high intensities through fatigue has a significant effect on perceptual‐motor calibration. Contrastingly, in response to an action‐scaled task, individuals can adequately recalibrate to increased load carriage.

Visual exploratory action, in which football players turn their head to perceive their environment, improves prospective performance with the ball during match-play. This scanning action, however, is relevant for players throughout the entire match, as the information perceived through visual exploration is needed to guide movement around the pitch during both offensive and defensive play. This study aimed to understand how a player’s on-pitch position, playing role and phase of play influenced the visual exploratory head movements of players during 11v11 match-play. Twenty-two competitive-elite youth footballers (M = 16.25 years) played a total of 1,623 minutes (M = 73.8). Inertial measurement units, global positioning system units and notational analysis were used to quantify relevant variables. Analyses revealed that players explored more extensively when they were in possession of the ball, and less extensively during transition phases, as compared to team ball-possession and opposition ball-possession phases of play. Players explored most extensively when in the back third of the pitch, and least when they were in the middle third of the pitch. Playing role, pitch position and phase of play should be considered as constraints on visual exploratory actions when developing training situations aimed at improving the scanning actions of players.

INTRODUCTION: Designed as a more ecological measure of reaction times, the Perception-Action Coupling Task (PACT) has shown good reliability and within-subject stability. However, a lengthy testing period was required. Perceptual-motor judgments are known to be affected by proximity of the stimulus to the action boundary. The current study sought to determine the effects of action boundary proximity on PACT performance, and whether redundant levels of stimuli, eliciting similar responses, can be eliminated to shorten the PACT.METHODS: There were 9 men and 7 women who completed 4 testing sessions, consisting of 3 familiarization cycles and 6 testing cycles of the PACT. For the PACT, subjects made judgments on whether a series of balls presented on a tablet afford “posting” (can fit) through a series of apertures. There were 8 ratios of ball to aperture size (B-AR) presented, ranging from 0.2 to 1.8, with each ratio appearing 12 times (12 trials) per cycle. Reaction times and judgment accuracy were calculated, and averaged across all B-ARs. Ratios and individual trials within each B-AR were systematically eliminated. Variables were re-averaged, and intraclass correlation coefficients (ICC) and coefficients of variation (CV_TE) were calculated in an iterative manner.RESULTS: With elimination of the 0.2 and 1.8 B-ARs, the PACT showed good reliability (ICC = 0.81–0.99) and consistent within-subject stability (CV_TE = 2.2–14.7%). Reliability (ICC = 0.81–0.97) and stability (CV_TE = 2.6–15.6%) were unaffected with elimination of up to 8 trials from each B-AR.DISCUSSION: The shortened PACT resulted in an almost 50% reduction in total familiarization/testing time required, significantly increasing usability.Johnson CD, LaGoy AD, Pepping G-J, Eagle SR, Beethe AZ, Bower JL, Alfano CA, Simpson RJ, Connaboy C. Action boundary proximity effects on perceptual-motor judgments. Aerosp Med Hum Perform. 2019; 90(12):1000–1008.

To control movement of any type, the neural system requires perceptual information to distinguish what actions are possible in any given environment. The behavior aimed at collecting this information, termed “exploration”, is vital for successful movement control. Currently, the main function of exploration is understood in the context of specifying the requirements of the task at hand. To accommodate for agency and action-selection, we propose that this understanding needs to be supplemented with a function of exploration that logically precedes the specification of action requirements with the purpose of discovery of possibilities for action—action orientation. This study aimed to provide evidence for the delineation of exploration for action orientation and exploration for action specification using the principles from “General Tau Theory.” Sixteen male participants volunteered and performed a laboratory-based exploration task. The visual scenes of different task-specific situations were projected on five monitors surrounding the participant. At a predetermined time, the participant received a simulated ball and was asked to respond by indicating where they would next play the ball. Head movements were recorded using inertial sensors as a measure of exploratory activity. It was shown that movement guidance characteristics varied between different head turns as participants moved from exploration for orientation to exploration for action specification. The first head turn in the trial, used for action-orientation, showed later peaks in the velocity profile and harder closure of the movement gap (gap between the start and end of the head-movement) in comparison to the later head turns. However, no differences were found between the first and the final head turn, which we hypothesized are used mainly for action orientation and specification respectively. These results are in support of differences in the function and control of head movement for discovery of opportunities for action (orientation) vs. head movement for specification of task requirements. Both are important for natural movement, yet in experimental settings,orientation is often neglected. Including both orientation and action specification in an experimental design should maximize generalizability of an experiment to natural behavior. Future studies are required to study the neural bases of movement guidance in order to better understand exploration in anticipation of movement.