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Influence of fitness on susceptibility to noise-induced temporary threshold shift. 1998

F W Kolkhorst, and J J Smaldino, and S C Wolf, and L R Battani, and B L Plakke, and S Huddleston, and L D Hensley
School of Health, Department of Communicative Disorders, University of Northern Iowa, Cedar Falls 50614-0241, USA. fred.kolkhorst@uni.edu

OBJECTIVE Two earlier reports indicated that cardiovascular fitness attenuates susceptibility to noise-induced temporary threshold shift (TTS) in hearing sensitivity; however, other parameters of fitness also may be related to this phenomenon. This study investigated the association of three different physical fitness indicators on TTS. METHODS Maximal aerobic power (VO2max), body composition. and recent activity history were determined in 33 normal-hearing females of various fitness levels. Audiometric thresholds were obtained at 2000, 3000, 4000, and 6000 Hz before and immediately after 10 min of exposure to 108-dB SPL narrow-band noise centered at 2000 Hz. RESULTS All postnoise measurements were significantly less than prenoise measurements (P < 0.0001) with the greatest TTS occurring at 3000 Hz. Similarly, the strongest Pearson-product correlations for VO2max, % fat, and recent activity history with TTS occurred at 3000 Hz (r = -0.68, 0.60, -0.59, respectively; P < 0.05). Canonical correlation analysis indicated a moderate correlation between physical fitness and TTS (Rc = 0.71: P < 0.01). Individually, VO2max, % fat, and recent activity history had correlations of -0.70, 0.62, and -0.63, respectively, to the TTS canonical variable. CONCLUSIONS From these results, we concluded that there is a moderate association of physical fitness and diminished temporary hearing loss experienced after noise exposure.

UI MeSH Term Description Entries
D010101 Oxygen Consumption The rate at which oxygen is used by a tissue; microliters of oxygen STPD used per milligram of tissue per hour; the rate at which oxygen enters the blood from alveolar gas, equal in the steady state to the consumption of oxygen by tissue metabolism throughout the body. (Stedman, 25th ed, p346) Consumption, Oxygen,Consumptions, Oxygen,Oxygen Consumptions
D010809 Physical Fitness The ability to carry out daily tasks and perform physical activities in a highly functional state, often as a result of physical conditioning. Fitness, Physical
D001823 Body Composition The relative amounts of various components in the body, such as percentage of body fat. Body Compositions,Composition, Body,Compositions, Body
D002320 Cardiovascular Physiological Phenomena Processes and properties of the CARDIOVASCULAR SYSTEM as a whole or of any of its parts. Cardiovascular Physiologic Processes,Cardiovascular Physiological Processes,Cardiovascular Physiology,Cardiovascular Physiological Concepts,Cardiovascular Physiological Phenomenon,Cardiovascular Physiological Process,Physiology, Cardiovascular,Cardiovascular Physiological Concept,Cardiovascular Physiological Phenomenas,Concept, Cardiovascular Physiological,Concepts, Cardiovascular Physiological,Phenomena, Cardiovascular Physiological,Phenomenon, Cardiovascular Physiological,Physiologic Processes, Cardiovascular,Physiological Concept, Cardiovascular,Physiological Concepts, Cardiovascular,Physiological Phenomena, Cardiovascular,Physiological Phenomenon, Cardiovascular,Physiological Process, Cardiovascular,Physiological Processes, Cardiovascular,Process, Cardiovascular Physiological,Processes, Cardiovascular Physiologic,Processes, Cardiovascular Physiological
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001305 Auditory Fatigue Loss of sensitivity to sounds as a result of auditory stimulation, manifesting as a temporary shift in auditory threshold. The temporary threshold shift, TTS, is expressed in decibels. Fatigue, Auditory,Temporary Threshold Shift, Auditory,Auditory Fatigues,Fatigues, Auditory
D015444 Exercise Physical activity which is usually regular and done with the intention of improving or maintaining PHYSICAL FITNESS or HEALTH. Contrast with PHYSICAL EXERTION which is concerned largely with the physiologic and metabolic response to energy expenditure. Aerobic Exercise,Exercise, Aerobic,Exercise, Isometric,Exercise, Physical,Isometric Exercise,Physical Activity,Acute Exercise,Exercise Training,Activities, Physical,Activity, Physical,Acute Exercises,Aerobic Exercises,Exercise Trainings,Exercise, Acute,Exercises,Exercises, Acute,Exercises, Aerobic,Exercises, Isometric,Exercises, Physical,Isometric Exercises,Physical Activities,Physical Exercise,Physical Exercises,Training, Exercise,Trainings, Exercise

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