Validity and reliability of portable gym devices and an iPhone app to measure vertical jump performance

SPSR51_Wee J._181222_final-1SPSR51_Wee J._181222_final-3SPSR51_Wee J._181222_final-2SPSR51_Wee J._181222_final-4SPSR51_Wee J._181222_final-5PDF File: SPSR51_Wee J._181222_final