sufr_sports Module Reference

Procedures related to sports. More...

Functions/Subroutines
pure subroutine	cycling_power (mass, slope, vair, vgr, pwr_mech, pwr_air, pwr_climb)
	Compute the power used for cycling. Add the three components to get the total power.
pure subroutine	cycling_power_sp (mass, slope, vair, vgr, pwr_mech, pwr_air, pwr_climb)
	Compute the power used for cycling, single-precision wrapper for cycling_power.
subroutine	heartrate2power (gender, age, mass, hr, power, dpower)
	Convert heart rate to body power + uncertainty.

Detailed Description

Procedures related to sports.

Function/Subroutine Documentation

cycling_power()

pure subroutine sufr_sports::cycling_power	(	real(double), intent(in)	mass,
		real(double), intent(in)	slope,
		real(double), intent(in)	vair,
		real(double), intent(in)	vgr,
		real(double), intent(out)	pwr_mech,
		real(double), intent(out)	pwr_air,
		real(double), intent(out)	pwr_climb )

Compute the power used for cycling. Add the three components to get the total power.

Parameters

mass	Mass of the rider + bike (kg)
slope	Slope of the road, fraction
vair	Air speed of the rider (m/s)
vgr	Ground speed of the rider (m/s)
pwr_mech	Power to overcome mechanical resistance (of a typical bike, W) (output)
pwr_air	Power to overcome air resistance (W) (output)
pwr_climb	Power to climb a given slope (W) (output)

See also

• https://en.wikipedia.org/wiki/Drag_%28physics%29#Power
• https://en.wikipedia.org/wiki/Bicycle_performance#Power_required
• http://www.sportsci.org/jour/9804/dps.html
• Charles Henry (2015-03-15). "Diagram of Crr as a function of V" - http://www.velomobil.ch/ch/sites/default/files/images/pages/reifenpruefstand/diagramm_cr_v.jpg
  • ~/diverse/software/Fortran/fit/07_Bicycle_tyre_resistance (used Schwalbe Ultremo 2x for fit)

Definition at line 48 of file sports.f90.

References sufr_weather::air_density(), and sufr_kinds::double.

Referenced by cycling_power_sp().

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cycling_power_sp()

pure subroutine sufr_sports::cycling_power_sp	(	real, intent(in)	mass,
		real, intent(in)	slope,
		real, intent(in)	vair,
		real, intent(in)	vgr,
		real, intent(out)	pwr_mech,
		real, intent(out)	pwr_air,
		real, intent(out)	pwr_climb )

Compute the power used for cycling, single-precision wrapper for cycling_power.

Parameters

mass	Mass of the rider + bike (kg)
slope	Slope of the road, fraction
vair	Air speed of the rider (m/s)
vgr	Ground speed of the rider (m/s)
pwr_mech	Power to overcome mechanical resistance (of a typical bike, W) (output)
pwr_air	Power to overcome air resistance (W) (output)
pwr_climb	Power to climb a given slope (W) (output)

See also

• https://en.wikipedia.org/wiki/Drag_%28physics%29#Power
• https://en.wikipedia.org/wiki/Bicycle_performance#Power_required

Definition at line 98 of file sports.f90.

References cycling_power(), and sufr_kinds::double.

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heartrate2power()

subroutine sufr_sports::heartrate2power	(	character, intent(in)	gender,
		real(double), intent(in)	age,
		real(double), intent(in)	mass,
		real(double), intent(in)	hr,
		real(double), intent(out)	power,
		real(double), intent(out)	dpower )

Convert heart rate to body power + uncertainty.

Parameters

gender	Athlete's gender: f(emale) or m(ale)
age	Athlete's age (years)
mass	Athlete's body mass (kg)
HR	Heart rate (beats per minute)
power	Body power (W) (output)
dpower	Uncertainty in body power (W) (output)

See also

Keytel et al., Prediction of energy expenditure from heart rate monitoring during submaximal exercise, JSS 23:3, 289 (2005)

Definition at line 134 of file sports.f90.

References sufr_kinds::double, and sufr_system::quit_program_error().

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