maturation_cm {matuR}

Maturation and Biobanding Metrics

Description

This function returns a dataframe wih computed maturation metrics in cms calculated from the raw data imported by the user. See references for further details about the methodology behind each metric. For the same table in Inches see maturation_in()

Usage

maturation_cm(data)

Arguments

data

A data frame. See data_sample for formatting reference.

Value

A data frame with the following columns:

Athlete

A chracter string. The name of the athlete

Gender

A character String. The gender of the athlete

⁠Testing Date⁠

A date. The data collection date for each athlete

⁠Birth Year⁠

The year of birth for every athlete

Quarter

The yearly quarter in which athletes were born

Height (CM)

The height in cms for each athlete at the time of testing

⁠Estimated Adult Height (CM)⁠

The estimated adult height in cms of the athlete using the Khamis-Roche method. See references for further details.

⁠% Adult Height⁠

Their current height expressed as %, compared to their predicted adult height

⁠Remaining Growth (CM)⁠

The difference between their predicted adult height and current height, in cms

⁠Maturity Offset (years)⁠

Difference between their current age and their estimated age at PHV, espressed in years.

Age @ PHV

The estimated age of the player at the time of Peak Height Velocity. Calculated using the Mirwald equation. See references for further details.

⁠Maturity Category⁠

Categries for bio-banding based on the work from Cumming et al, 2017. See references for further details.

References

- Khamis, H. J., & Roche, A. F, 1994. Predicting adult height without using skeletal age: The Khamis-Roche method. Pediatrics, 94, 504–507
- Sean P. Cumming, Rhodri S. Lloyd, John L. Oliver, Joey C. Eisenmann & Robert M. Malina, 2017. Bio-banding in Sport: Applications to competition, talent identification and strength and conditioning of youth athletes, National Strength and Conditioning Association, vol.39, 2
- Mirwald, R.L., Baxter-Jones, A.D.G., Bailey, D.A., & Beunen, G.P., 2002. An assessment of maturity from anthropometric measurements. Medicine and Science Sports Exercise, 34,4, pp. 689–694.
- Johnson DM, Williams S, Bradley B, Sayer S, Fisher JM. Growing pains : Maturity associated variation in injury risk in academy football. Eur J Sport Sci . 2019:1–9.

Examples

maturation_cm(data_sample)