The relationship between lower-body strength qualities and baserunning performance in high school aged baseball players : a pilot study
- Authors: Bartlett, Rogan , Talpey, Scott , Young, Warren
- Date: 2021
- Type: Text , Journal article
- Relation: Journal of Strength and Conditioning (JASC) Vol. 29, no. 4 (2021), p.
- Full Text: false
- Reviewed:
- Description: The purpose of this research was to determine 1) the relationship between lower-body strength qualities and baserunning and 2) the relationship between lower-body strength qualities and the time discrepancy between baserunning and linear sprints of the same distance. Twenty-one male baseball players (age: 17 ± 1.11 years; height: 179.5 ± 6.73 cm; body mass: 82.48 ± 11.1 kg) from a State Baseball Academy were tested for peak force (PF) production in an isometric mid-thigh pull (IMTP), peak power (PP) and jump height (HCMJ) in a countermovement jump (CMJ), and reactive strength index (RSI) from a drop jump (DJ). Additionally, they performed sprints from Homeplate to Second Base (54.8mBR) and over a 54.8m linear distance (54.8mLIN), with splits taken at 10m (10mBR, 10mLIN) and 27.4m (27.4mBR, 27.4mLIN). Relationships between all the collected variables plus the difference between 54.8mBR and 54.8mLIN (BRD), relative PF (RelPF) and relative PP (RelPP) were assessed by Pearson product-moment correlation coefficient. Only ten complete sets of data were collected (age: 16.9 ± 1.29 years; height: 180.2 ± 7.07 cm; body mass: 84.67 ± 12.1 kg). RelPF (r = -0.81, p
Development of muscle mass : How much is optimum for performance?
- Authors: Young, Warren , Talpey, Scott , Bartlett, Rogan , Lewis, Mitchell , Mundy, Stephanie , Smyth, Andrew , Welsh, Tim
- Date: 2019
- Type: Text , Journal article
- Relation: Strength and Conditioning Journal Vol. 41, no. 3 (2019), p. 47-50
- Full Text:
- Reviewed:
- Description: Training for muscle hypertrophy can be expected to induce some increase in total body mass, and this can have positive or negative consequences for athletic performance. Positive effects may be increased strength, increased resistance to being pushed aside, and greater momentum when running, whereas possible negative effects may be reduced capacity to accelerate, decelerate, change direction, and jump. These possible effects of gaining muscle and total body mass suggest that strength and conditioning coaches should give thoughtful consideration to the amount of hypertrophy training prescribed throughout an athletes's development and should be determined by the specific needs of the athlete.
- Description: TRAINING FOR MUSCLE HYPERTROPHY CAN BE EXPECTED TO INDUCE SOME INCREASE IN TOTAL BODY MASS, AND THIS CAN HAVE POSITIVE OR NEGATIVE CONSEQUENCES FOR ATHLETIC PERFORMANCE. POSITIVE EFFECTS MAY BE INCREASED STRENGTH, INCREASED RESISTANCE TO BEING PUSHED ASIDE, AND GREATER MOMENTUM WHEN RUNNING, WHEREAS POSSIBLE NEGATIVE EFFECTS MAY BE REDUCED CAPACITY TO ACCELERATE, DECELERATE, CHANGE DIRECTION, AND JUMP. THESE POSSIBLE EFFECTS OF GAINING MUSCLE AND TOTAL BODY MASS SUGGEST THAT STRENGTH AND CONDITIONING COACHES SHOULD GIVE THOUGHTFUL CONSIDERATION TO THE AMOUNT OF HYPERTROPHY TRAINING PRESCRIBED THROUGHOUT AN ATHLETE'S DEVELOPMENT AND SHOULD BE DETERMINED BY THE SPECIFIC NEEDS OF THE ATHLETE.