ORIGINAL PAPER
Influence of a smartphone use on dynamic balance in healthy adolescents
1
Department of Physical Therapy for Pediatrics and Its Surgery, Faculty of Physical Therapy, Modern University for Technology and Information, Cairo, Egypt
2
Department of Physical Therapy for Neuromuscular Disorders and Its Surgery, Faculty of Physical Therapy, Modern University for Technology and Information, Cairo, Egypt
3
Department of Physical Therapy for Basic Sciences, Faculty of Physical Therapy, Cairo University, Cairo, Egypt
4
Department of Physical Therapy for Musculoskeletal Disorders and Its Surgery, Faculty of Physical Therapy, Modern University for Technology and Information, Cairo, Egypt
Submission date: 2020-06-23
Acceptance date: 2021-02-08
Publication date: 2021-10-26
Hum Mov. 2022;23(2):76-83
KEYWORDS
TOPICS
ABSTRACT
Purpose:
The aim of the study was to detect the immediate and late effects of using a smartphone for 30 consecutive minutes on dynamic balance in healthy adolescents.
Methods:
Overall, 96 healthy adolescents of both genders, aged 15–18 years, were randomly assigned to the study and the control group. The subjects in the study group used a smartphone for 30 consecutive minutes; smartphones were not allowed in the control group. A Biodex system was used to assess the dynamic balance initially, as well as immediately after and 1 hour after the intervention.
Results:
MANOVA test revealed that there were statistically significant differences in the overall stability index and anteroposterior stability index (p = 0.002 and 0.04, respectively), with a statistically insignificant difference in the mediolateral stability index (p = 0.46) within the study group. Significant differences were observed in the immediate measurements of both overall stability index and anteroposterior stability index (p = 0.0001 and 0.03, respectively), while statistically insignificant differences were noted in the measurements of mediolateral stability index between the groups.
Conclusions:
The dynamic balance decreased after 30 consecutive minutes of smartphone use, so care should be taken to avoid accidents while walking or performing other daily activities. This effect, however, disappeared 1 hour later.
The aim of the study was to detect the immediate and late effects of using a smartphone for 30 consecutive minutes on dynamic balance in healthy adolescents.
Methods:
Overall, 96 healthy adolescents of both genders, aged 15–18 years, were randomly assigned to the study and the control group. The subjects in the study group used a smartphone for 30 consecutive minutes; smartphones were not allowed in the control group. A Biodex system was used to assess the dynamic balance initially, as well as immediately after and 1 hour after the intervention.
Results:
MANOVA test revealed that there were statistically significant differences in the overall stability index and anteroposterior stability index (p = 0.002 and 0.04, respectively), with a statistically insignificant difference in the mediolateral stability index (p = 0.46) within the study group. Significant differences were observed in the immediate measurements of both overall stability index and anteroposterior stability index (p = 0.0001 and 0.03, respectively), while statistically insignificant differences were noted in the measurements of mediolateral stability index between the groups.
Conclusions:
The dynamic balance decreased after 30 consecutive minutes of smartphone use, so care should be taken to avoid accidents while walking or performing other daily activities. This effect, however, disappeared 1 hour later.
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