Next Article in Journal
Interpretation of Near-Infrared Spectroscopy (NIRS) Signals in Skeletal Muscle
Previous Article in Journal
Influence of a Specific Aquatic Program on Social and Gross Motor Skills in Adolescents with Autism Spectrum Disorders: Three Case Reports
Open AccessArticle

Regional Differences in Mitochondrial Capacity in the Finger Flexors of Piano Players

Department of Kinesiology, University of Georgia, 330 River Road, Athens, GA 30602, USA
*
Author to whom correspondence should be addressed.
J. Funct. Morphol. Kinesiol. 2019, 4(2), 29; https://doi.org/10.3390/jfmk4020029
Received: 30 April 2019 / Revised: 15 May 2019 / Accepted: 22 May 2019 / Published: 26 May 2019
(This article belongs to the Section Kinesiology and Biomechanics)
Background: Near-infrared spectroscopy (NIRS) has been used to measure oxidative capacity, but regional differences have not been identified. Piano players are also a novel group of subjects for this lab. Methods: Controls (n = 13) and piano players (n = 8) were tested in a seated position on the right forearm. A fatigue test was performed for three minutes at 2, 4 and 6 Hz using electrical stimulation, which created an endurance index (EI) as the forearm fatigued. A six-cuff oxidative capacity test was performed using manual exercise to activate the muscle and allow for regional specificity. A rate constant (Rc) was generated from the mitochondrial capacity data. Results: Overall, piano players (Rc = 1.76 ± 0.6) and controls (Rc = 1.17 ± 0.3) have significant differences for the last two fingers (p = 0.01). While controls have significant differences between the index (Rc = 1.86 ± 0.5) and last two fingers (Rc = 1.17 ± 0.3) (p = 0.001), this difference was not observed in piano players. Overall, piano players (EI = 75.7 ± 12.3) and controls (EI = 73.0 ± 17.3) had no differences in endurance index values (p = 0.71). Conclusions: Piano players have significant differences in the mitochondrial capacity of the finger flexors that control the last two fingers compared to controls. The lack of difference between groups in the index fingers and overall endurance test suggests playing the piano produces training adaptations to the finger flexor muscles of the last two digits, which are rarely used by control subjects. View Full-Text
Keywords: endurance; near-infrared spectroscopy; skeletal muscle; oxidative capacity endurance; near-infrared spectroscopy; skeletal muscle; oxidative capacity
Show Figures

Figure 1

MDPI and ACS Style

Luquire, K.; McCully, K.K. Regional Differences in Mitochondrial Capacity in the Finger Flexors of Piano Players. J. Funct. Morphol. Kinesiol. 2019, 4, 29.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Back to TopTop