Horizontal plane muscular power output is important in sports such as football especially for down lineman who must engage an opponent and push them for a number of yards. The Prowler resistance sled is a commonly use...Horizontal plane muscular power output is important in sports such as football especially for down lineman who must engage an opponent and push them for a number of yards. The Prowler resistance sled is a commonly used apparatus that aids in the development of horizontal plane muscular power output. However, there is limited documentation regarding the Prowler＇s role as a strength and conditioning training modality as well as its potential use as an assessment tool for measuring horizontal plane muscular power output. Hence, the purpose of this study was to assess the reliability of the Prowler sled push in High School male football players. High School male football players （n = 16） performed two trials of the Prowler sled push 91 kilograms （200 pounds） for a distance of 9.1 meters （10 yards）. Each trial was timed with a handheld stop watch with a 2-3 minute rest period between trials. The trial 1 and 2 scores were 5.14 ±0.95 and 5.15 ±0.88 seconds respectively. The interclass and intraclass reliability coefficients were r = 0.93 and ICC = 0.93. The standard error of the measure was SEre = 0.25 seconds with 90% confidence limits Of UL： 0.36, LL： 0.20. The mean difference between trials was 0.01 ±0.36 seconds （90% confidence limits Of UL： 0.17, LL： -0.14）. Within the parameters of this study, the Prowler sled push is a highly reliable field test for measuring horizontal plane muscular power output.展开更多
WMG （World Masters Games） athletes have either pursued a physically active lifestyle for an extended period of time or have initiated exercise/sport in later life. This unique cohort of middle-aged to older-aged adu...WMG （World Masters Games） athletes have either pursued a physically active lifestyle for an extended period of time or have initiated exercise/sport in later life. This unique cohort of middle-aged to older-aged adults remains relatively uninvestigated with regards to various measures of health. With a need for multifaceted solutions to the obesity epidemic, investigating special populations such as those competing in sport at older ages may further the understanding of the nexus between aging, physical activity and obesity. This study aims to investigate the BMI （body mass index） of North American WMG competitors with respect to national health guidelines and demographics. An online survey was utilized to collect demographic information from athletes competing at the Sydney WMG. BMI was derived using the participant＇s height and body mass. A total of 928 （46.7% male, 53.3% female） participants from Canada and the United States （age： 52.6 ± 9.8 years） completed the survey. The top 5 sports in which participants competed were football （25.6%）, track/field （15.4%）, swimming （8.4%）, volleyball （8.2%）, and softball （7.8%）. Female and male BMI （kg/m2） across all sports were： 〉 30 （obese： 13.9%）, 25-29.9 （overweight： 34.1%）, 18.5-24.9 （normal： 50.3%）, and 〈18.5 （underweight： 1.7%）. Data indicated that BMI was a health risk factor for 13.9% of the participants and a developing risk factor for 34.1% of the participants. Analysis demonstrated a significantly reduced （P 〈 0.05） classification of obesity of the North American WMG competitors when compared to Canadian and United States national populations. It is believed that adherence to exercise improves indices of general health. A key index of health （obesity） is significantly lower in incidence for North American WMG competitors when compared to Canadian and US populations.展开更多
文摘Horizontal plane muscular power output is important in sports such as football especially for down lineman who must engage an opponent and push them for a number of yards. The Prowler resistance sled is a commonly used apparatus that aids in the development of horizontal plane muscular power output. However, there is limited documentation regarding the Prowler＇s role as a strength and conditioning training modality as well as its potential use as an assessment tool for measuring horizontal plane muscular power output. Hence, the purpose of this study was to assess the reliability of the Prowler sled push in High School male football players. High School male football players （n = 16） performed two trials of the Prowler sled push 91 kilograms （200 pounds） for a distance of 9.1 meters （10 yards）. Each trial was timed with a handheld stop watch with a 2-3 minute rest period between trials. The trial 1 and 2 scores were 5.14 ±0.95 and 5.15 ±0.88 seconds respectively. The interclass and intraclass reliability coefficients were r = 0.93 and ICC = 0.93. The standard error of the measure was SEre = 0.25 seconds with 90% confidence limits Of UL： 0.36, LL： 0.20. The mean difference between trials was 0.01 ±0.36 seconds （90% confidence limits Of UL： 0.17, LL： -0.14）. Within the parameters of this study, the Prowler sled push is a highly reliable field test for measuring horizontal plane muscular power output.
文摘WMG （World Masters Games） athletes have either pursued a physically active lifestyle for an extended period of time or have initiated exercise/sport in later life. This unique cohort of middle-aged to older-aged adults remains relatively uninvestigated with regards to various measures of health. With a need for multifaceted solutions to the obesity epidemic, investigating special populations such as those competing in sport at older ages may further the understanding of the nexus between aging, physical activity and obesity. This study aims to investigate the BMI （body mass index） of North American WMG competitors with respect to national health guidelines and demographics. An online survey was utilized to collect demographic information from athletes competing at the Sydney WMG. BMI was derived using the participant＇s height and body mass. A total of 928 （46.7% male, 53.3% female） participants from Canada and the United States （age： 52.6 ± 9.8 years） completed the survey. The top 5 sports in which participants competed were football （25.6%）, track/field （15.4%）, swimming （8.4%）, volleyball （8.2%）, and softball （7.8%）. Female and male BMI （kg/m2） across all sports were： 〉 30 （obese： 13.9%）, 25-29.9 （overweight： 34.1%）, 18.5-24.9 （normal： 50.3%）, and 〈18.5 （underweight： 1.7%）. Data indicated that BMI was a health risk factor for 13.9% of the participants and a developing risk factor for 34.1% of the participants. Analysis demonstrated a significantly reduced （P 〈 0.05） classification of obesity of the North American WMG competitors when compared to Canadian and United States national populations. It is believed that adherence to exercise improves indices of general health. A key index of health （obesity） is significantly lower in incidence for North American WMG competitors when compared to Canadian and US populations.
