Interactional Response During Infants' Aquatic Sessions.

The aim of study was to assess infants' behaviour during routine swimming sessions using a naturalistic observation method. The study sample included 14 infants (13.7±7.5 months old) with previous aquatic experience. The frequency of occurrences per unit of time (session) in the different dimensions - infant's motor behaviour and social-affective interaction - was registered over the course of two sessions by two independent experts. The behaviours most frequently observed were accompanied displacement (61.1%) and interaction with others (41.6%). Submersions or jumps represented only 8.4% of the session. Implementing a child-centred methodology leads to positive behaviours during this type of sessions, contributing to the child's healthy development.

Introduction

The participation of infants in aquatic activities has increased remarkably in the last several decades. The proposed aquatic programs are not directed towards teaching infants (generally between 6–36 months) to swim or to prevent drowning. Instead, they should aim to contribute to their sensory and motor development, as demonstrated by previous studies 1 2 3 4 5 6 . Usually, those types of classes help developing body awareness and encourage autonomy and sociability. The presence of the infant’s parents is key to facilitate this process because it gives the child confidence to try out new movements and sensations in a new environment.

Despite differing greatly from each other, the most common pedagogical approaches for water familiarization tend to provide a compromise between the pleasure of being in the water and the effective learning of several basic aquatic skills 7 8 . Aquatic and terrestrial environment-oriented activities present different characteristics. The intensity of effort, as determined by body immersion and position, and water temperature, leads to anxiety and panic (fear) especially in young and inexperienced infants 9 .

Previous studies aimed to register the child’s experiences during swimming lessons 10 11 12 13 . This information gave useful tips and practical implications for swimming teachers, leading to adjustments in session planning considering the level of aquatic competence and infant experience.

More naturalistic observations constitute a valuable comprehensive method in which participants are observed in their natural context avoiding intrusion or interference with the normal course of the events 14 .

Using enhanced video recordings and coding of naturalistic observations, our study aimed to describe infants’ behaviour during routine swimming sessions. The study was carried out in an informal aquatic setting, without manipulation or intervention by observers, but under strict protocols and techniques in order to eliminate limitations and subjectivities.

Materials and Methods

Participants

Fourteen infants 13.7±7.5 months old and with 7.71±7.54 months of experience took part in this study. All parents displayed a good aquatic readiness level (verified by their child´s swimming teacher) and were engaged with their infant’s swim sessions on a regular basis since the beginning of their baby’s swimming sessions in order that the parents’ presence might reduce their infant’s anxiety level and affect their behaviour.

Infants were selected according to the following criteria: (i) children with weekly participation in all proposed swim sessions (September to December); (ii) all sessions were conducted by the same teacher, specialized in infant swimming; and (iii) all children were accompanied by their parents who showed a good aquatic readiness. The exclusion criteria were: (i) infants who refused their inclusion in the study; (ii) parents without or with poor aquatic adaptation; (iii) infants with some pathology or specific physical conditions; or (iv) infants who did not participate in all the sessions and/or left the sessions earlier.

The study was conducted according to the requirements of the Declaration of Helsinki and meets the ethical standards in sport and exercise science research 15 . Parents gave their formal written consent for the infants to participate.

Study design

The experimental set included five sessions conducted using a child-centred methodology. The first three sessions aimed at familiarization of the infants with the apparatus and data collection procedures. The remaining two sessions were used for data collection.

The observation procedures were defined and divided according to the most important components 16 , because the main goal was to observe the infants’ behaviour while they participated in swimming sessions.

The researcher responsible for the video acquisition in this study had a training period prior to the main observation time point, according to other protocols already used in this area 17 . Swimming sessions were performed in an indoor swimming pool 16 meters in length and one meter deep. Water temperature was 31 ºC, air temperature 28 ºC with 65% humidity. All sessions lasted 30 minutes and were conducted by a specialized instructor. Each session’s structure was designed according to individual characteristics (e. g. age, motor development level, background experience in swim sessions, etc). Parents stayed close to their infant but allowed them to perform the proposed skills with autonomy. Each swim session comprised four distinct parts: (i) initial part, welcoming routine of infants and adults by the instructor (5 minutes); (ii) main part, promoting the stimulation of the motor skills and social aspects (10 minutes); (iii) free period, where infants and adults share non-oriented activities together (10 minutes); and (iv) the final part, where infants say good-bye (5 minutes). Auxiliary equipment was used to stimulate the infant to perform the motor skills when necessary.

Measures

All sessions were recorded with one video camera located 3 meters away, in front of the protocol pool set in order to reduce any change in the infants’ behaviour. The camera recorded one baby at a time in the class. The camera position, zoom, and mobility allowed capturing the best perspective of all the emotional state of the babies.

The actions in the recorded video were registered by putting into words every motion expressed in the video. Data was analyzed according to the categorized variable 16 18 19 . The order and type of occurrences of different dimensions (motor behaviour and socio-affective) and categories were registered for later analysis. The duration of children’s activities were recorded. Problems associated with eventual observational errors and precision accuracy of the experts, despite their ten years of experience in the area and academic qualifications, were minimized by applying the Bellack index – (total agreements/total agreements+total disagreements)×100 – accepting a result equal or superior to eighty percent as the guarantor of reliability 18 .

The motor behaviour dimension was split into the following categories: i) child´s interaction (with an adult, another child, water or object); and ii) motor skills (vertical and horizontal displacement, displacement with support of an adult or material, submersion, and jumps). The socio-affective dimension was split into the following categories: i) child’s eye-gaze direction (to another child, to an adult, to water, to object); and ii) child’s emotional expressions (laughing, crying, screaming, passive, disagreeable).

Analysis

Data are reported as mean±standard deviation (SD). All variables were analyzed according to the percentage of occurrence in each dimension and category (child’s actions were registered by frequency and not by sequence.

Results

The Bellack Index was used to assess inter-observer reliability, and the values obtained showed a strong concordance between them ( Table 1 1a ) because 92% was the lowest value for the ‘Looking at other’ category. Also, the intra-observer test demonstrates consistency with a mean of 96% overall concordance ( Table 2 2a ).

Table 1 Bellack Index inter-observer results – Motor behaviour dimension.

	Motor behaviour dimension
	Interaction				Skills
	IBco	IBpp	IBh2o	IBobj	Dv	Dhd	Dhv	Dmat	Dac	DnonSup	Iv	Inv	Jmat	Jac	JnonSup
Bellack Index	93.8%	100.0%	100.0%	97.2%	97.4%	100.0%	100.0%	100.0%	97.5%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%

IBco – baby’s interaction with others; IBpp – baby’s interaction with self; IBh2o – baby’s interaction with water; IBobj – baby’s interaction with object (s); Dv – vertical displacement; Dhd – dorsal displacement; Dhv – prone position displacement; Dmat – displacement with material; Dac – displacement accompanied; DnonSup – displacement without support; Iv – voluntary immersion; Inv – involuntary immersion; Jmat – jump with material; Jac – jump with support; JnonSup – jump without support.

Table 2 Bellack Index intra-observer results – Motor behaviour dimension..

	Children motor Behaviour dimension
	Interaction				Skills
	IBco	IBpp	IBh2o	IBobj	Dv	Dhd	Dhv	Dmat	Dac	DnonSup	Iv	Inv	Jmat	Jac	JnonSup
Bellack Index (%)	95	100	88	93	95	98	100	90	88	93	98	100	100	100	100

IBco – baby’s interaction with others; IBpp – baby’s interaction with self; IBh2o – baby’s interaction with water; IBobj – baby’s interaction with object (s); Dv – vertical displacement; Dhd – dorsal displacement; Dhv – prone position displacement; Dmat – displacement with material; Dac – displacement accompanied; DnonSup – displacement without support; Iv – voluntary immersion; Inv – involuntary immersion; Jmat – jump with material; Jac – jump with support; JnonSup – jump without support.

The results are expressed as relative percentage and mean value for each variable studied. In general, the accompanied displacements (61.1%) and interaction with other children (41.6%) were the most frequent ones ( Table 3 ).

Table 3 Frequencies observed in children’s motor behaviour dimension.

	Motor behaviour dimension
	Interaction				Skills
	IBco (%)	IBpp (%)	IBh2o (%)	IBobj (%)	Dv (%)	Dhd (%)	Dhv (%)	Dmat (%)	Dac (%)	DnonSup (%)	Iv (%)	Inv (%)	Jmat (%)	Jac (%)	JnonSup (%)
Mean	41.6	6.7	9.8	38.6	28.3	19.5	30.8	8.3	61.1	n.o	1.6	1.7	0.7	2.4	2
SD	20.2	4.5	7.7	18.1	9.4	13.7	14.8	7.2	23.3	n.o	0.9	0.6	0	2.2	0.9
VAR	408.0	20.3	59.3	327.6	88.4	187.7	219.0	51.8	542.9	n.o	0.8	0.4	0.0	4.8	0.8

IBco – baby’s interaction with others; IBpp – baby’s interaction with self; IBh2o – baby’s interaction with water; IBobj – baby’s interaction with object (s); Dv – vertical displacement; Dhd – dorsal displacement; Dhv – prone position displacement; Dmat – displacement with material; Dac – displacement accompanied; DnonSup – displacement without support; Iv – voluntary immersion; Inv – involuntary immersion; Jmat – jump with material; Jac – jump with support; JnonSup – jump without support.

The motor behaviour dimension, and particularly the displacements and interaction categories, were the most frequently observed tasks, whereas other specific tasks such as submersion or jumps represent only 8.4% of the session. In terms of the socio-affective dimension, all the key attention foci of the infants were recorded. Children’s gaze was mainly directed at objects (30.7%), followed by at their parents (14.1%). Indifference (11.5%) and laughter (10.4%) were dominant during the session. ( Table 4 )

Table 4 Behavioural frequencies observed in the socio-affective dimension.

	Socio-affective dimension
	Gaze direction					Emotional expressions
	Lac (%)	Lo (%)	Lh 2 o (%)	Lobj (%)	Others (%)	Laugh (%)	Cry (%)	Scream (%)	Indifer (%)	Unples (%)	Others (%)
Mean	14.1	9.5	6.6	30.7	9.8	10.4	0.7	1.8	11.5	3.8	5.9
SD	9.1	5.6	3.3	18.5	9.1	6.7	0.3	1.7	6.3	4	0
VAR	82.8	31.4	10.9	342.3	82.8	44.9	0.1	2.9	39.7	16.0	0.0

Lac – looking at parent; Lo – looking at others; Lh 2 o – looking at water; Lobj – looking at object; Indifer – indifferent; Unples – unpleasantness.

Discussion and Conclusions

The aim of this study was to collect and register data of infants’ behaviour during a swimming session through natural observation.

Displacements and interaction categories were the most frequently observed and registered during the intervention. Also, there is an emergent need to tailor the tasks so that children will not spend most of the session in a task that puts them in constant physiological overload 20 21 .

In another study performed simultaneously 20 , six of the fourteen children showed a higher HR in tasks such as dorsal displacement, vertical displacement, and prone position displacement, which comprise up to 78.6% of the session. Moreover, the majority of the children obtained their maximal HR (132.43±12.720 bpm) in the prone position displacement. A positive significant correlation between HR and the time spent in a vertical position (r=0.99, p<0.05) was found.

The submersion skill, which might be easily associated with this kind of activity and therefore might imply more interest around it, only had a frequency of occurrence in the session of 3.3%.

From these data we were also able to make some individual analyses, which may interestingly lead us to propose a categorization of parents. One child had 100% of frequency occurrences in the accompanied displacement category, among other similar behaviours, revealing an attachment and constant proximity to his parent that allows us to define this parent as a hyper-protector or super-protector 22 23 . This infant was probably more anxious than the rest of the group. The “hyper-protective” classification is currently used in family psychology to categorize parents’ behaviour.

The findings of this study demonstrated that the children mainly manifested expressions of indifference or passiveness that might be connected to the enormous amount of stimulus to which the children are exposed, thus bringing them into that state 23 . Several authors 24 25 26 27 28 describe the importance of stimulus and environment to the motor, cognitive, and social development of the child. As a matter of fact, from a social point of view, aquatic programs directed towards this population aim not only to increase the time and quality of the interactions between parents and their child but also to promote or extend the child's first social interactions 29 . Regarding the cognitive aspect of the child´s development, we emphasize the importance of aquatic games in creating opportunities for language development and elementary mathematical notions, as evidenced by authors 30 , changing the indifferent status to a more active one through tasks that develop cognitive skills.

A child´s behaviour is often influenced by the kind of parents involved. In the aquatic environment, although new and discoverable, the child’s emotions are often camouflaged and concealed from the naked eye due to the overwhelming atmosphere they are exposed to.

It should be noted that one of the limitations of this study is the difficulty to divide the sample according to previous experience criteria. This can eventually explain the higher SD values obtained in certain variables (baby’s interaction with others, baby’s interaction with object, vertical displacement, dorsal displacement, prone position displacement, and accompanied displacement). To address this issue, we suggest performing a longitudinal behavioural study with narrower criteria regarding age and previous experience.

In conclusion, we consider that implementing a child-centred methodology leads to positive behaviours during this type of session and contributes to a child’s healthy development 31 32 .

Notice

This article was changed according to the erratum on December 07, 2020.

Erratum

In the above mentioned article the page numbers were corrected, it must be E70–E75.

Table 1a Bellack Index inter-observer results – Socio-affective dimension.

	Socio-affective dimension
	Gaze direction					Emotional expressions
	Lac	Lo	Lh 2 o	Lobj	Others	Laugh	Cry	Scream	Indifer	Unples	Others
Bellack Index	100%	92%	100%	100%	100%	100%	100%	100%	100%	100%	100%

Lac – looking at parent; Lo – looking at others; Lh 2 o – looking at water; Lobj – looking at object; Indifer – indifferent; Unples – unpleasantness.

Table 2a Bellack Index intra-observer results – Socio-affective dimension.

	Socio-affective dimension
	Gaze direction					Emotional expressions
	Lac	Lo	Lh 2 o	Lobj	Others	Laugh	Cry	Scream	Indifer	Unples	Others
Bellack Index (%)	100	100	100	100	98	88	95	100	100	88	90

Lac – looking at parent; Lo – looking at others; Lh 2 o – looking at water; Lobj – looking at object; Indifer – indifferent; Unples – unpleasantness.