Effect of repeated exercise fatigue on the swimming performance of juvenile rock carp ( Procypris rabaudi , Tchang)

2020 ◽  
Vol 36 (6) ◽  
pp. 811-816
Author(s):  
Ying‐ping Huang ◽  
Ali Haris Malik ◽  
Zhi‐ying Tu ◽  
David Johnson ◽  
Wei‐Ming Li ◽  
...  
Keyword(s):  
Swimming Performance ◽  
Repeated Exercise ◽  
Exercise Fatigue ◽  
Procypris Rabaudi

scholarly journals Effects of Total Dissolved Gas Supersaturation in Fish of Different Sizes and Species

2019 ◽  
Vol 16 (13) ◽  
pp. 2444 ◽  
Author(s):  
Xue ◽  
Wang ◽  
Liang ◽  
Li ◽  
Li
Keyword(s):  
Swimming Performance ◽  
Dissolved Gas ◽  
Schizothorax Prenanti ◽  
Total Dissolved Gas ◽  
Upper Yangtze River ◽  
High Supersaturation ◽  
The Difference ◽  
Total Dissolved Gas Supersaturation ◽  
Procypris Rabaudi ◽  
The Upper Yangtze River

Two endemic fish in the upper Yangtze River, the Rock Carp (Procypris rabaudi) and Prenant’s Schizothoracin (Schizothorax prenanti), were used as research objects in this study to assess the effects of total dissolved gas (TDG) supersaturation on fish of varying sizes. Fish were exposed to TDG-supersaturated water at the levels of 145, 140, 135, 130, and 125%. The results showed that fish swam slowly, responded clumsily, and then exhibited spiral swimming performance after a period of exposure to TDG-supersaturated water. Fish exhibited exophthalmos, body swelling, gill bleeding, and caudal fin bleeding when they died in the TDG-supersaturated water. With the increase in TDG supersaturation, the tolerance capacity of fish to supersaturated TDG significantly reduced. At high supersaturation, the difference in survival time between species was not significant, while fish with smaller sizes showed greater tolerance capacity. At low supersaturation, the tolerance capacity of fish was mainly affected by species, and the influence of size was relatively small. With the decrease in TDG supersaturation, the catalase (CAT) activity first increased and then decreased. Rock Carp displayed significantly less activity than Prenant’s Schizothoracin on exposure to TDG-supersaturated water. At high supersaturation levels, the CAT activity of Prenant’s Schizothoracin of small size was greater than that of large Prenant’s Schizothoracin. In contrast, small Prenant’s Schizothoracin showed less CAT activity at low TDG levels than did large individuals.

Analysis of Correlations between Swimming Performance and the Inspiratory Muscle Capacity

2020 ◽  
Vol 29 (5) ◽  
pp. 1361-1371
Author(s):  
Kwang-Myong Kim ◽  
Hyun-Ju Kim ◽  
Jong-Hwan Choi
Keyword(s):  
Swimming Performance ◽  
Inspiratory Muscle

Impaired Swimming Performance of Acid-exposed Arctic Charr, Salvelinus Alpinus L.

1988 ◽  
Vol 23 (2) ◽  
pp. 301-307 ◽  
Author(s):  
L.A. Hunter ◽  
E. Scherer
Keyword(s):  
Dose Response ◽  
Salvelinus Alpinus ◽  
Arctic Charr ◽  
Swimming Performance ◽  
Control Level ◽  
Ventilation Rates

Abstract Arctic charr (Salvelinus alpinus L.) were exposed to five levels of acidity between pH 6 and pH 3.8. Swimming performance as determined by critical swimming speeds was 67.5 cm · sࢤ1 or 4.4 body lengths per second for untreated fish (pH 7.8). Performance declined sharply below pH 4.5; at pH 3.8 it was reduced by 35% after 7 days of exposure. Tailbeat frequencies and ventilation rates showed no dose-response effects. At swimming speeds between 20 and 50 cm · sࢤ1, ventilation rates at all levels of acidity were higher than at the control level.

Acute Toxicity Testing with Juvenile White Sturgeon (Acipenser transmontanus)

1998 ◽  
Vol 33 (1) ◽  
pp. 95-110 ◽  
Author(s):  
W.R. Bennett ◽  
A.P. Farrell
Keyword(s):  
Acute Toxicity ◽  
Swimming Performance ◽  
Juvenile Fish ◽  
Toxicity Testing ◽  
White Sturgeon ◽  
Acipenser Transmontanus ◽  
Toxicity Tests ◽  
Fraser River ◽  
Acute Toxicity Tests ◽  
Acute Toxicity Testing

Abstract The primary goal of this study was to investigate the possibility of using early life stages of white sturgeon (Acipenser transmontanus) (eggs, larvae and fry) as a species relevant to the Fraser River, B.C., for the acute and sublethal toxico-logical testing of forest industry effluents. Here we report the first successful acute toxicity tests for 8-day-old larvae and 42-day-old fry exposed to several chemicals known to be released into the Fraser River (i.e., 6 monochlorovanillin [6 MVAN], 4,5 dichloroguaiacol [4,5 DCG], 4,5 dichlorocatechol [4,5 DCAT], pentachlorophenol [PCP], and didecyldimethylammonium chloride [DDAC]). In most cases, white sturgeon fry were at the lower end of the range for acute toxicity values for chlorinated phenolic compounds, when compared with other juvenile fish species, and they were extremely sensitive to DDAC. The larval stage was usually more sensitive than the fry stage. Acute toxicity tests with fertilized eggs were unsuccessful. A postexposure growth study was inconclusive because neither control nor toxicant-exposed larvae and fry withstood the additional handling used for measuring body mass. At 62-days-old, fry were more tolerant of handling. This allowed measurement of their swimming performance. Although we have concerns about the reliability of using larvae for acute toxicity testing at this time, 60-day-old white sturgeon fry would appear to be both a sensitive and relevant species for assessing environmental impacts relevant to the Fraser River.

Swimming Performance and Metabolism of Cultured Golden Shiners

2009 ◽  
Vol 71 (1) ◽  
pp. 59-63 ◽  
Author(s):  
Rachel V. Beecham ◽  
Philip R. Pearson ◽  
Susan B. LaBarre ◽  
C. Douglas Minchew
Keyword(s):  
Swimming Performance ◽  
Golden Shiners

scholarly journals Psychological and Physiological Features Associated with Swimming Performance

2021 ◽  
Vol 18 (9) ◽  
pp. 4561
Author(s):  
Vicente Javier Clemente-Suárez ◽  
Juan Pedro Fuentes-García ◽  
Ricardo J. Fernandes ◽  
João Paulo Vilas-Boas
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Swimming Performance ◽  
Aerobic Performance ◽  
Anaerobic Performance ◽  
Probe Characteristic ◽  
Time Domains ◽  
High Fatigue ◽  
Psychological Features ◽  
Aerobic And Anaerobic

Background: The aim of the present research was to study the psychological and physiological features associated with aerobic and anaerobic performance in trained swimmers. Methods: A correlation and stepwise regression analyses were conducted with the data obtained in a RESTQ-76 sport questionnaire, a heart rate variability test, and an anaerobic and aerobic swimming performance efforts of 20 swimmers. Results: Aerobic performance correlated, principally, with parameters related to parasympathetic modulation measured in the frequency and time domains of the heart rate variability (LF/HF r: −0.806, p < 0.001; NN50 r: 0.937, p < 0.001). Swimmers’ anaerobic performance correlated to psychological features (low stress r: 0.526, p: 0.025, and high fatigue r: −0.506, p: 0.032). Conclusion: Swimming performance presented different psychological and physiological features depending on the probe characteristic. Specifically, swimmers’ anaerobic performance was associated with psychological features (low stress and high fatigue perception) and aerobic performance with physiological features (high parasympathetic modulation). This information could help coaches to know the variables to control in their swimmers, depending on the probe in which they compete (anaerobic or aerobic).

Spatial-temporal variables for swimming coaches: A comparison study between video and TritonWear sensor

2021 ◽  
pp. 174795412110137
Author(s):  
Robin Pla ◽  
Thibaut Ledanois ◽  
Escobar David Simbana ◽  
Anaël Aubry ◽  
Benjamin Tranchard ◽  
...  
Keyword(s):  
Swimming Performance ◽  
Video Recording ◽  
Open Water ◽  
Percentage Error ◽  
Stroke Index ◽  
Wearable Sensor ◽  
Stroke Length ◽  
Video Recordings ◽  
Temporal Variables ◽  
Training Sets

The main aim of this study was to evaluate the validity and the reliability of a swimming sensor to assess swimming performance and spatial-temporal variables. Six international male open-water swimmers completed a protocol which consisted of two training sets: a 6×100m individual medley and a continuous 800 m set in freestyle. Swimmers were equipped with a wearable sensor, the TritonWear to collect automatically spatial-temporal variables: speed, lap time, stroke count (SC), stroke length (SL), stroke rate (SR), and stroke index (SI). Video recordings were added as a “gold-standard” and used to assess the validity and the reliability of the TritonWear sensor. The results show that the sensor provides accurate results in comparison with video recording measurements. A very high accuracy was observed for lap time with a mean absolute percentage error (MAPE) under 5% for each stroke (2.2, 3.2, 3.4, 4.1% for butterfly, backstroke, breaststroke and freestyle respectively) but high error ranges indicate a dependence on swimming technique. Stroke count accuracy was higher for symmetric strokes than for alternate strokes (MAPE: 0, 2.4, 7.1 & 4.9% for butterfly, breaststroke, backstroke & freestyle respectively). The other variables (SL, SR & SI) derived from the SC and the lap time also show good accuracy in all strokes. The wearable sensor provides an accurate real time feedback of spatial-temporal variables in six international open-water swimmers during classical training sets (at low to moderate intensities), which could be a useful tool for coaches, allowing them to monitor training load with no effort.

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