A study on the physical fitness index, heart rate and blood pressure in different phases of lunar month on male human subjects.
Int J Biometeorol
; 57(5): 769-74, 2013 Sep.
Article
em En
| MEDLINE
| ID: mdl-23161271
ABSTRACT
The gravitational pull of the moon on the earth is not the same in all phases of the lunar month, i.e. new moon (NM), first quarter (FQ), full moon (FM) and third quarter (TQ), and as a result the amplitude of tide differs in different phases. The gravitational pull of the moon may have effects on the fluid compartments of the human body and hence the cardiovascular system may be affected differentially in the different phases of the lunar month. In the present study resting heart rate (HR) and blood pressure (BP), physical fitness index (PFI), peak HR and BP immediately after step test, and recovery HR and BP after step test were measured during different phases of the lunar month in 76 male university students (age 23.7 ± 1.7 years). At rest, both systolic and mean arterial BP were â¼5 mmHg lower in NM and FM compared to FQ and TQ, but resting HR was not significantly different between phases. Further, peak HR and peak systolic BP after step test were lower (â¼4 beat/min and â¼5 mmHg, respectively) in NM and FM compared to FQ and TQ. PFI was also higher (â¼5) in NM and FM compared to FQ and TQ. Recovery of HR after step test was quicker in NM and FM compared to that of FQ and TQ. It appears from this study that gravitational pull of the moon may affect the cardiovascular functions of the human body. Moreover, the physical efficiency of humans is increased in NM and FM due to these altered cardiovascular regulations.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Periodicidade
/
Pressão Sanguínea
/
Aptidão Física
/
Lua
/
Ritmo Circadiano
/
Frequência Cardíaca
Tipo de estudo:
Risk_factors_studies
Limite:
Adult
/
Humans
/
Male
País/Região como assunto:
Asia
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article