Related Experiment Video
Updated: Sep 3, 2025
08:47
Automated Analysis of C. elegans Swim Behavior Using CeleST Software
Published on: December 7, 2016
12.8K
Gender and Age Patterns in NSGA Swim Competitions
David P Doane1, Lori E Seward2, Kevin Murphy3
1Department of Decision and Information Sciences, Oakland University, Rochester, MI 49309, USA.
Journal of Aging Research
|July 28, 2022
Summary
Senior swimmers slow down nonlinearly with age, with women experiencing a faster decline than men after 50. This study analyzed National Senior Games data to inform training and promote healthy aging.
Area of Science:
- Sports Science
- Gerontology
- Biostatistics
Background:
- Swimming performance naturally declines with age.
- Understanding age-related performance changes is crucial for senior athletes.
- Previous studies focused on elite swimmers, leaving a gap in senior competition data.
Purpose of the Study:
- To model the time-age relationship in senior freestyle swimming.
- To compare performance decline between male and female senior swimmers.
- To provide data-driven guidelines for senior competitors and support organizations.
Main Methods:
- Analysis of 500-yard freestyle swim times from National Senior Games (2009-2019).
- Estimation of nonlinear models (quadratic, semilog, exponential) for age-related performance.
- Application of Ordinary Least Squares (OLS) and quantile regression for gender-specific analysis.
Main Results:
- The semilog model provided the best fit for predicting swim times.
- Women demonstrated a faster performance decline than men after age 50.
- Nonlinear performance decrements were observed, consistent with elite swimmer studies.
Conclusions:
- Swimming performance decline in seniors is nonlinear and gender-specific.
- Findings support the hypothesis of a more rapid decline in women post-50.
- This research offers valuable insights for senior athletes, coaches, and organizations promoting active aging.
Related Concept Videos
01:29Life Histories
18.4K
Overview
18.4K
01:06Natural Selection and Mating Preferences
166
The principle of natural selection posits that organisms better adapted to their environment are more likely to survive and reproduce. This principle is closely intertwined with mating preferences, a key aspect of sexual selection, which evolutionary psychologists believe is driven by instincts to propagate one's genes. Such instincts significantly influence mating behaviors and preferences between genders.
Females, due to their biological roles in conception, pregnancy, and nursing,...
Females, due to their biological roles in conception, pregnancy, and nursing,...
166
01:27Signs of Puberty
589
Puberty is a critical phase, typically beginning between the ages of 8 and 13 in girls and 9 and 14 in boys, though timing can vary based on genetics, environmental factors, and overall health. This period is characterized by the development of secondary sexual characteristics and the attainment of reproductive potential. Endocrine changes underpin puberty, with hormonal surges of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) instigated by Gonadotropin-Releasing Hormone (GnRH)...
589
01:24Testing a Claim about Population Proportion
3.4K
A complete procedure for testing a claim about a population proportion is provided here.
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...
3.4K
01:30Socioemotional Experience and Gender Development
77
Social-emotional experiences and cultural influences play significant roles in shaping gender development. During middle childhood, from ages 6 to 11, peer groups become dominant in reinforcing gender norms. Children in this age group often align with same-gender peer groups, which actively encourage behaviors that conform to traditional gender roles. For instance, boys may be discouraged from engaging in activities perceived as feminine, reinforcing culturally dictated norms about masculinity...
77
01:17Two-Way ANOVA
2.8K
The two-way ANOVA is an extension of the one-way ANOVA. It is a statistical test performed on three or more samples categorized by two factors - a row factor and a column factor. Ronald Fischer mentioned it in 1925 in his book 'Statistical Methods for Researchers.'
The two-way ANOVA analysis initially begins by stating the null hypothesis that there is an interaction effect between the two factors of a dataset. This effect can be visualized using line segments formed by joining the...
The two-way ANOVA analysis initially begins by stating the null hypothesis that there is an interaction effect between the two factors of a dataset. This effect can be visualized using line segments formed by joining the...
2.8K