Pub Date : 1996-04-01DOI: 10.1080/15438629609512060
J. A. Gilbert
The purpose of the study was to determine the influence of acute and chronic ingestion of aspirin on selected endurance variables during maximal exercise. Eleven moderately trained men (19 to 30 years old) participated in three blind graded maximal treadmill tests for each of two different aspirin doses and a placebo condition. The treatments consisted of the following: an acute dose of 975 mg of aspirin 1 hour prior to exercise; a chronic dose of 975 mg of aspirin 3 times a day for 4 consecutive days; and a placebo of three comstarch‐filled capsules, 3 times a day for 4 consecutive days. Maximal performance was not significantly different among the treatments. However, chronic treatment resulted in significantly higher 5‐minute postexercise lactate levels (p < 0.001), a decrease in time to reach ventilatory threshold (Tvent), and a shorter time to exhaustion (p < 0.01) compared with the acute and placebo treatment Acute treatment also resulted in significantly higher 5‐minute postexercise lactate concent...
{"title":"Acute and chronic effect of aspirin on selected endurance variables","authors":"J. A. Gilbert","doi":"10.1080/15438629609512060","DOIUrl":"https://doi.org/10.1080/15438629609512060","url":null,"abstract":"The purpose of the study was to determine the influence of acute and chronic ingestion of aspirin on selected endurance variables during maximal exercise. Eleven moderately trained men (19 to 30 years old) participated in three blind graded maximal treadmill tests for each of two different aspirin doses and a placebo condition. The treatments consisted of the following: an acute dose of 975 mg of aspirin 1 hour prior to exercise; a chronic dose of 975 mg of aspirin 3 times a day for 4 consecutive days; and a placebo of three comstarch‐filled capsules, 3 times a day for 4 consecutive days. Maximal performance was not significantly different among the treatments. However, chronic treatment resulted in significantly higher 5‐minute postexercise lactate levels (p < 0.001), a decrease in time to reach ventilatory threshold (Tvent), and a shorter time to exhaustion (p < 0.01) compared with the acute and placebo treatment Acute treatment also resulted in significantly higher 5‐minute postexercise lactate concent...","PeriodicalId":403174,"journal":{"name":"Sports Medicine, Training and Rehabilitation","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117127909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-01DOI: 10.1080/15438629609512057
Susde Parker, P. Brukner, M. Rosier
Chronic fatigue syndrome (CFS), previously known as myalgic encephalomyelitis, causes an athlete who was once energetic, competitive, and resourceful to become chronically exhausted, weak, and debi...
{"title":"Chronic fatigue syndrome and the athlete","authors":"Susde Parker, P. Brukner, M. Rosier","doi":"10.1080/15438629609512057","DOIUrl":"https://doi.org/10.1080/15438629609512057","url":null,"abstract":"Chronic fatigue syndrome (CFS), previously known as myalgic encephalomyelitis, causes an athlete who was once energetic, competitive, and resourceful to become chronically exhausted, weak, and debi...","PeriodicalId":403174,"journal":{"name":"Sports Medicine, Training and Rehabilitation","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114598881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-01DOI: 10.1080/15438629609512062
R. D. N. Nnakwe
The objectives of this study were to determine the serum estrogen, percent body fat, dietary intake, urinary electrolyte excretion, and hematological status of female athletes experiencing irregular and regular menstrual cycles. A 3‐day dietary record was collected from seven oligomenorrheic and 10 eumenorrheic female athletes. Fasting blood samples were collected to determine serum estradiol, iron, hemoglobin, hematocrit, and red blood cell levels. There was no signiflcant difference between the groups in either the serum estradiol, iron, albumin, hemoglobin, or hematocrit levels. Most subjects in both groups consumed less than 50% of the recommended daily allowance for iron, zinc, vitamin B6, and estimated safe and adequate daily dietary intake for copper. The results show significant lower body fat in the oligomenorrheic group and a low nutrient intake in both groups. Strenuous exercise plus an inadequate nutrient intake could pose long‐term nutritional problems for athletes.
{"title":"Serum estradiol, hematological parameters, and urinary electrolytes excretion in oligomenorrheic and eumenorrheic athletes on self‐selected diets","authors":"R. D. N. Nnakwe","doi":"10.1080/15438629609512062","DOIUrl":"https://doi.org/10.1080/15438629609512062","url":null,"abstract":"The objectives of this study were to determine the serum estrogen, percent body fat, dietary intake, urinary electrolyte excretion, and hematological status of female athletes experiencing irregular and regular menstrual cycles. A 3‐day dietary record was collected from seven oligomenorrheic and 10 eumenorrheic female athletes. Fasting blood samples were collected to determine serum estradiol, iron, hemoglobin, hematocrit, and red blood cell levels. There was no signiflcant difference between the groups in either the serum estradiol, iron, albumin, hemoglobin, or hematocrit levels. Most subjects in both groups consumed less than 50% of the recommended daily allowance for iron, zinc, vitamin B6, and estimated safe and adequate daily dietary intake for copper. The results show significant lower body fat in the oligomenorrheic group and a low nutrient intake in both groups. Strenuous exercise plus an inadequate nutrient intake could pose long‐term nutritional problems for athletes.","PeriodicalId":403174,"journal":{"name":"Sports Medicine, Training and Rehabilitation","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121840283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-01DOI: 10.1080/15438629609512058
S. Pearman, A. Hackney
The purpose of this study was to devise a protocol intended to assess optimal anaerobic glycolytic power (AGP) from a number of maximal power output (PO) responses (mean and peak) to a range of 90‐second performance tests. Subjects (n = 24) completed a 30‐second Wingate (WG) test, and four 90‐second AGP tests on a cycle ergometer. In the 90‐second cycle ergometer test, several different trials were made with an ergometer resistance set at 2%, 6%, 8%, and 10% of a subject's body weight (BW). Physiological measurements (heart rate, blood pressure, blood lactate concentration) and a psychological measurement (rating of perceived exertion) were made before a test, immediately after it, and after 30 minutes of recovery from the exertion. Statistically, both the WG and AGP tests produced a significant change (p ≤ 0.05) in the physiological and psychological measures. These results were variable but did show that the 6% and 8% AGP tests were the most stressful. Polynomial regression analysis was made of all PO r...
{"title":"Development of a 90‐second cycle ergometer test to assess anaerobic ability","authors":"S. Pearman, A. Hackney","doi":"10.1080/15438629609512058","DOIUrl":"https://doi.org/10.1080/15438629609512058","url":null,"abstract":"The purpose of this study was to devise a protocol intended to assess optimal anaerobic glycolytic power (AGP) from a number of maximal power output (PO) responses (mean and peak) to a range of 90‐second performance tests. Subjects (n = 24) completed a 30‐second Wingate (WG) test, and four 90‐second AGP tests on a cycle ergometer. In the 90‐second cycle ergometer test, several different trials were made with an ergometer resistance set at 2%, 6%, 8%, and 10% of a subject's body weight (BW). Physiological measurements (heart rate, blood pressure, blood lactate concentration) and a psychological measurement (rating of perceived exertion) were made before a test, immediately after it, and after 30 minutes of recovery from the exertion. Statistically, both the WG and AGP tests produced a significant change (p ≤ 0.05) in the physiological and psychological measures. These results were variable but did show that the 6% and 8% AGP tests were the most stressful. Polynomial regression analysis was made of all PO r...","PeriodicalId":403174,"journal":{"name":"Sports Medicine, Training and Rehabilitation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125812977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-01DOI: 10.1080/15438629609512061
F. Drobnic, P. Casán, M. Banquells, R. Miralda, J. Sanchís
The cough is a defense mechanism of the airways that is often detected after intense exercise. Breathing in cold or dry ambient air causes heat and water loss from the nasal and bronchial mucosa, which has been related to the onset of cough. The relationship between the presence of cough, asthma, and bronchial responsiveness has not been studied properly. This study investigates the prevalence of cough after exercise and its relationship to the presence of bronchial reactivity, asthma, and exercise‐induced symptoms of asthma in a group of elite athletes. The subjects were 130 well‐trained athletes of international category. Forty of the 130 athletes (31%) practiced aquatic sports, and 90 (69%) were involved in nonaquatic sports. The presence of cough was analyzed by a questionnaire, and the presence or absence of asthma or asthma induced by exercise was determined by evaluation of the clinical history, a questionnaire, and a physical examination. The presence and the level of bronchial reactivity were det...
{"title":"Cough after exercise in the elite athlete","authors":"F. Drobnic, P. Casán, M. Banquells, R. Miralda, J. Sanchís","doi":"10.1080/15438629609512061","DOIUrl":"https://doi.org/10.1080/15438629609512061","url":null,"abstract":"The cough is a defense mechanism of the airways that is often detected after intense exercise. Breathing in cold or dry ambient air causes heat and water loss from the nasal and bronchial mucosa, which has been related to the onset of cough. The relationship between the presence of cough, asthma, and bronchial responsiveness has not been studied properly. This study investigates the prevalence of cough after exercise and its relationship to the presence of bronchial reactivity, asthma, and exercise‐induced symptoms of asthma in a group of elite athletes. The subjects were 130 well‐trained athletes of international category. Forty of the 130 athletes (31%) practiced aquatic sports, and 90 (69%) were involved in nonaquatic sports. The presence of cough was analyzed by a questionnaire, and the presence or absence of asthma or asthma induced by exercise was determined by evaluation of the clinical history, a questionnaire, and a physical examination. The presence and the level of bronchial reactivity were det...","PeriodicalId":403174,"journal":{"name":"Sports Medicine, Training and Rehabilitation","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125217262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-01DOI: 10.1080/15438629609512056
David E. Martin
Climatic heat stress measurements were made during 1992, 1993, 1994, and 1995 at the Atlanta Centennial Olympic Stadium construction site, using three commercially available heat stress monitoring devices. This venue will be the site of opening and closing ceremonies, as well as all of the athletics competition. The measurement periods were during late July and early August, the period corresponding to the planned 1996 Games competition days. Whereas the 1992 data were of a more general nature, and thus preliminary, in 1993, 1994, and 1995 detailed measurements were made at 5‐minute intervals during selected 4‐hour periods. The potentially high temperature, humidity, and radiant heating in Atlanta during the Games period to which athletes, spectators, officials, and media could be exposed warranted such detailed studies. Measurements included dry bulb temperature, wet bulb temperature, and black globe temperature. From these values, the heat stress index temperature was calculated. The time periods were i...
{"title":"Climatic heat stress studies at the Atlanta 1996 Olympic stadium venue, 1992‐1995","authors":"David E. Martin","doi":"10.1080/15438629609512056","DOIUrl":"https://doi.org/10.1080/15438629609512056","url":null,"abstract":"Climatic heat stress measurements were made during 1992, 1993, 1994, and 1995 at the Atlanta Centennial Olympic Stadium construction site, using three commercially available heat stress monitoring devices. This venue will be the site of opening and closing ceremonies, as well as all of the athletics competition. The measurement periods were during late July and early August, the period corresponding to the planned 1996 Games competition days. Whereas the 1992 data were of a more general nature, and thus preliminary, in 1993, 1994, and 1995 detailed measurements were made at 5‐minute intervals during selected 4‐hour periods. The potentially high temperature, humidity, and radiant heating in Atlanta during the Games period to which athletes, spectators, officials, and media could be exposed warranted such detailed studies. Measurements included dry bulb temperature, wet bulb temperature, and black globe temperature. From these values, the heat stress index temperature was calculated. The time periods were i...","PeriodicalId":403174,"journal":{"name":"Sports Medicine, Training and Rehabilitation","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116931939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-01DOI: 10.1080/15438629609512059
S. Baker, R. Al‐Najadah
The purpose of this study was to determine the effects of ingesting a fish oil supplement, taking exercise with a fish oil supplement, or taking exercise alone on serum lipid and lipoprotein fractions in premenopausal and postmenopausal women during a 12‐week period. Premenopausal (n = 30) and postmenopausal (n = 30) subjects were randomly assigned to one of three groups: exercise, exercise and fish oil, and fish oil only. Both exercise groups attended an exercise session twice weekly for 12 weeks. A control group (n = 10) followed their normal habitual lifestyle for the same period. Group 3 (fish oil) were required to ingest one fish oil capsule daily, which contained 171 mg eicosapentanoic acid and 114 mg of docosahexanoic acid. Serum lipid and lipoprotein concentrations were determined in venous blood (12‐hour fasted) at baseline and at four intervals of 1 week in all subjects. Body fatness was determined by near infrared interactance. Premenopausal subjects demonstrated a significantly lower mean (± S...
{"title":"Effect of ingesting fish oil on serum lipid and lipoprotein concentration in exercising and nonexercising women","authors":"S. Baker, R. Al‐Najadah","doi":"10.1080/15438629609512059","DOIUrl":"https://doi.org/10.1080/15438629609512059","url":null,"abstract":"The purpose of this study was to determine the effects of ingesting a fish oil supplement, taking exercise with a fish oil supplement, or taking exercise alone on serum lipid and lipoprotein fractions in premenopausal and postmenopausal women during a 12‐week period. Premenopausal (n = 30) and postmenopausal (n = 30) subjects were randomly assigned to one of three groups: exercise, exercise and fish oil, and fish oil only. Both exercise groups attended an exercise session twice weekly for 12 weeks. A control group (n = 10) followed their normal habitual lifestyle for the same period. Group 3 (fish oil) were required to ingest one fish oil capsule daily, which contained 171 mg eicosapentanoic acid and 114 mg of docosahexanoic acid. Serum lipid and lipoprotein concentrations were determined in venous blood (12‐hour fasted) at baseline and at four intervals of 1 week in all subjects. Body fatness was determined by near infrared interactance. Premenopausal subjects demonstrated a significantly lower mean (± S...","PeriodicalId":403174,"journal":{"name":"Sports Medicine, Training and Rehabilitation","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129105607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1995-11-01DOI: 10.1080/15438629509512051
David Q. Thomas, K. Long, B. Kindred, A. B. Miller
Deep water running (DWR) is frequently used in rehabilitation from sport‐related injury. Blood pressure (BP) response to DWR has not been determined. The purpose of this study was to determine if a reliable baseline BP measure may be obtained from a deep water runner and to analyze BP response to DWR. Three testers took three counterbalanced BP measures on 30 subjects at rest on land and in water. Generalizability theory was used to determine reliability. The systolic BP (SBP)‐reliability coefficient ranged from G = 0.96 for three testers and trials to G = 0.81 for one tester and trial. The diastolic BP (DBP) reliability coefficient was G = 0.93 for three testers and trials and G = 0.74 for one tester and trial, respectively. As a follow‐up, 37 women performed 30 minutes of DWR at 70% of maximum heart rate. Heart rate and BP were measured at rest on land, in water, and every 5 minutes during DWR. There were no significant differences (p > 0.05) between resting land and resting water BP. A repeated measure...
{"title":"Blood pressure and deep water running","authors":"David Q. Thomas, K. Long, B. Kindred, A. B. Miller","doi":"10.1080/15438629509512051","DOIUrl":"https://doi.org/10.1080/15438629509512051","url":null,"abstract":"Deep water running (DWR) is frequently used in rehabilitation from sport‐related injury. Blood pressure (BP) response to DWR has not been determined. The purpose of this study was to determine if a reliable baseline BP measure may be obtained from a deep water runner and to analyze BP response to DWR. Three testers took three counterbalanced BP measures on 30 subjects at rest on land and in water. Generalizability theory was used to determine reliability. The systolic BP (SBP)‐reliability coefficient ranged from G = 0.96 for three testers and trials to G = 0.81 for one tester and trial. The diastolic BP (DBP) reliability coefficient was G = 0.93 for three testers and trials and G = 0.74 for one tester and trial, respectively. As a follow‐up, 37 women performed 30 minutes of DWR at 70% of maximum heart rate. Heart rate and BP were measured at rest on land, in water, and every 5 minutes during DWR. There were no significant differences (p > 0.05) between resting land and resting water BP. A repeated measure...","PeriodicalId":403174,"journal":{"name":"Sports Medicine, Training and Rehabilitation","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129632233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1995-11-01DOI: 10.1080/15438629509512052
James A. Walker, P. Eisenman
Fifty‐seven high school middle distance runners (39 male and 18 female athletes) were assessed for maximal steady‐state (MSS) running velocity (RV), RV at a heart rate inflection point (HRi), and a competitive 3.2 km RV (RV3.2km) for the purpose of determining the correlation between actual MSS RV (MSS RVOBS) and that estimated from the Conconi and LaFontaine field test A Pearson correlation of r = 0.66 (males) and r = 0.38 (females) was observed between MSS RVObs and MSS RV3.2km, and a correlation of r = 0.47 (males) and r = 0.09 (females), respectively, between MSS RVObs and HRi RV was recorded. A HRi was detected in only 33 of 57 subjects (24 male and 9 female athletes). The respective LaFontaine and Conconi field tests overestimated a male's MSS RV, the former by an average of 13.4 and the latter by 7.7 m‐min‐1. A female's MSS RV, on average, was underestimated by 11.9 m.min‐1 by the Conconi test and overestimated by 10.9 m.min‐1 by the LaFontaine test The inaccuracy of the estimations ranged from 2 m...
本文对57名高中中长跑运动员(男39名，女18名)进行了最大稳态(MSS)跑速度(RV)、心率拐点(HRi)和竞技3.2km跑速度(RV3.2km)的评估，以确定实际MSS跑速度(MSS RVOBS)与Conconi和LaFontaine现场测试估算的MSS RVOBS之间的相关性。在MSS RVOBS和MSS RV3.2km之间，Pearson相关r = 0.66(男性)和r = 0.38(女性)。MSS rvob与HRi RV的相关系数分别为r = 0.47(男性)和r = 0.09(女性)。57名受试者中只有33名(24名男性运动员和9名女性运动员)检测到HRi。LaFontaine和Conconi田间试验分别高估了雄性的MSS RV，前者平均高估了13.4 m - min - 1，后者平均高估了7.7 m - min - 1。在Conconi测试中，女性的MSS RV平均被低估了11.9 m.min - 1，而在LaFontaine测试中，被高估了10.9 m.min - 1。
{"title":"Validity of a heart rate inflection point or a 3.2 kilometer performance pace as estimators of maximal steady‐state running velocity in high school runners","authors":"James A. Walker, P. Eisenman","doi":"10.1080/15438629509512052","DOIUrl":"https://doi.org/10.1080/15438629509512052","url":null,"abstract":"Fifty‐seven high school middle distance runners (39 male and 18 female athletes) were assessed for maximal steady‐state (MSS) running velocity (RV), RV at a heart rate inflection point (HRi), and a competitive 3.2 km RV (RV3.2km) for the purpose of determining the correlation between actual MSS RV (MSS RVOBS) and that estimated from the Conconi and LaFontaine field test A Pearson correlation of r = 0.66 (males) and r = 0.38 (females) was observed between MSS RVObs and MSS RV3.2km, and a correlation of r = 0.47 (males) and r = 0.09 (females), respectively, between MSS RVObs and HRi RV was recorded. A HRi was detected in only 33 of 57 subjects (24 male and 9 female athletes). The respective LaFontaine and Conconi field tests overestimated a male's MSS RV, the former by an average of 13.4 and the latter by 7.7 m‐min‐1. A female's MSS RV, on average, was underestimated by 11.9 m.min‐1 by the Conconi test and overestimated by 10.9 m.min‐1 by the LaFontaine test The inaccuracy of the estimations ranged from 2 m...","PeriodicalId":403174,"journal":{"name":"Sports Medicine, Training and Rehabilitation","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115478530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1995-11-01DOI: 10.1080/15438629509512049
J. Harrison, B. Dawson, S. Lawrence, B. Blanksby
The physiological responses of 12 competitive swimmers to a standard training workout of four sets of six 100 m freestyle repetitions per set were measured in two trials. By random assignment the swimmers attempted to keep the workout constant in each trial by maintaining either a target heart rate (HR) or a target time for the 100 m efforts. The target HR or time was determined from these values measured at the anaerobic threshold (AT) during an initial determination of this exercise level. The HR after each repetition, 50 m split time, and blood lactate concentration after each set were measured throughout each workout for each swimmer. When target HR was used as the exercise criterion, the group mean (± SD) HR for the first set of six 100 m repetitions (173 ±11 beats/min) was significantly lower (p ≤ 0.05) than the group mean AT target HR (182 ± 11 beats/min), but the group mean HR for sets two, three, and four was not significantly different from the target value. Group mean lactate concentration afte...
{"title":"Use of target heart rate or target swimming time to control exercise intensity during interval swimming training","authors":"J. Harrison, B. Dawson, S. Lawrence, B. Blanksby","doi":"10.1080/15438629509512049","DOIUrl":"https://doi.org/10.1080/15438629509512049","url":null,"abstract":"The physiological responses of 12 competitive swimmers to a standard training workout of four sets of six 100 m freestyle repetitions per set were measured in two trials. By random assignment the swimmers attempted to keep the workout constant in each trial by maintaining either a target heart rate (HR) or a target time for the 100 m efforts. The target HR or time was determined from these values measured at the anaerobic threshold (AT) during an initial determination of this exercise level. The HR after each repetition, 50 m split time, and blood lactate concentration after each set were measured throughout each workout for each swimmer. When target HR was used as the exercise criterion, the group mean (± SD) HR for the first set of six 100 m repetitions (173 ±11 beats/min) was significantly lower (p ≤ 0.05) than the group mean AT target HR (182 ± 11 beats/min), but the group mean HR for sets two, three, and four was not significantly different from the target value. Group mean lactate concentration afte...","PeriodicalId":403174,"journal":{"name":"Sports Medicine, Training and Rehabilitation","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127885234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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