Heart Rate Variability
Conditions
Interventions
Short duration group:3 hours of playing smart-phone game
Medium duration group:6 hours of playing smart-phone game
Long duration group:6-12 hours of playing smart-phone game
Sponsors
Tianjin University of Sport
Eligibility
Sex/Gender
Male
Age
18 Years to 35 Years
Inclusion criteria
Inclusion criteria: (1) male; age between 18 and 35 years old; (2) physically healthy and right-handed young adults in Tianjin, China; (3) had played the network game King of Glory for more than one year and had a diamond or starlight level (top three); (4) Prior to participating in the experiment, subjects remained in the habit of playing the game on a daily basis to avoid a drop in levels due to pausing the game; (5) no eye diseases (diseases of the fundus, eye trauma and strabismus) and normal visual acuity or corrected visual acuity; (6) no obvious anatomical asymmetry of the upper limbs and normal dexterity of the fingers; and (7) no sensory or perceptual deficits.
Exclusion criteria
Exclusion criteria: (1) having an autonomic or cardiovascular disease; (2) having taken medications or ingested foods within the past three days that may affect autonomic function; (3) overeating, dieting, or strenuous exercise in the 48 hours prior to the test; (4) abnormal mental behaviors and sleep conditions; and (5) non-normal hearing, (corrected) vision, and color vision. (6) Injury to both hands prior to the experiment; (7) Fatigue such as muscle soreness in the upper extremities;(8) Failure to sign an informed consent form.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| heart rate;ventilation;very low frequency;low frequency;high frequency; The root-mean-square value of the difference between adjacent r-r intervals ;The standard deviation of the mean of all normal r-r intervals ;Breath Frequency; | — |
Secondary
| Measure | Time frame |
|---|---|
| oxygen uptake;post-exercise excess oxygen consumption;visual fatigue;executive function;upper limb coordination; | — |
Countries
China
Contacts
Public ContactLiao Peng
Tianjin University of Sport
Outcome results
None listed